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annotate roundup/date.py @ 3775:beaf7ea86e5e

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author Richard Jones <richard@users.sourceforge.net>
date Sat, 02 Dec 2006 23:41:28 +0000
parents 06d7816976bc
children 842f1a292ff8
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1 #
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2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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3 # This module is free software, and you may redistribute it and/or modify
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4 # under the same terms as Python, so long as this copyright message and
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5 # disclaimer are retained in their original form.
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6 #
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7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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10 # POSSIBILITY OF SUCH DAMAGE.
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11 #
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12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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17 #
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18 # $Id: date.py,v 1.88 2006-09-09 05:50:17 richard Exp $
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19
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20 """Date, time and time interval handling.
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21 """
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22 __docformat__ = 'restructuredtext'
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24 import calendar
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25 import datetime
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26 import time
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27 import re
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28
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29 try:
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30 import pytz
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31 except ImportError:
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32 pytz = None
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33
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34 from roundup import i18n
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35
1597
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36 def _add_granularity(src, order, value = 1):
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37 '''Increment first non-None value in src dictionary ordered by 'order'
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38 parameter
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39 '''
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40 for gran in order:
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41 if src[gran]:
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42 src[gran] = int(src[gran]) + value
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43 break
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44
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45 # no, I don't know why we must anchor the date RE when we only ever use it
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46 # in a match()
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47 date_re = re.compile(r'''^
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48 ((?P<y>\d\d\d\d)([/-](?P<m>\d\d?)([/-](?P<d>\d\d?))?)? # yyyy[-mm[-dd]]
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49 |(?P<a>\d\d?)[/-](?P<b>\d\d?))? # or mm-dd
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50 (?P<n>\.)? # .
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51 (((?P<H>\d?\d):(?P<M>\d\d))?(:(?P<S>\d\d?(\.\d+)?))?)? # hh:mm:ss
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52 (?P<o>[\d\smywd\-+]+)? # offset
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53 $''', re.VERBOSE)
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54 serialised_date_re = re.compile(r'''
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55 (\d{4})(\d\d)(\d\d)(\d\d)(\d\d)(\d\d?(\.\d+)?)
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56 ''', re.VERBOSE)
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58 _timedelta0 = datetime.timedelta(0)
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59
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60 # load UTC tzinfo
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61 if pytz:
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62 UTC = pytz.utc
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63 else:
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64 # fallback implementation from Python Library Reference
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65
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66 class _UTC(datetime.tzinfo):
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67
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68 """Universal Coordinated Time zoneinfo"""
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69
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70 def utcoffset(self, dt):
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71 return _timedelta0
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72
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73 def tzname(self, dt):
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74 return "UTC"
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75
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76 def dst(self, dt):
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77 return _timedelta0
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78
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79 def __repr__(self):
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80 return "<UTC>"
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81
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82 # pytz adjustments interface
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83 # Note: pytz verifies that dt is naive datetime for localize()
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84 # and not naive datetime for normalize().
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85 # In this implementation, we don't care.
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86
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87 def normalize(self, dt, is_dst=False):
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88 return dt.replace(tzinfo=self)
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89
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90 def localize(self, dt, is_dst=False):
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91 return dt.replace(tzinfo=self)
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92
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93 UTC = _UTC()
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94
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95 # integral hours offsets were available in Roundup versions prior to 1.1.3
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96 # and still are supported as a fallback if pytz module is not installed
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97 class SimpleTimezone(datetime.tzinfo):
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98
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99 """Simple zoneinfo with fixed numeric offset and no daylight savings"""
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100
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101 def __init__(self, offset=0, name=None):
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102 super(SimpleTimezone, self).__init__()
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103 self.offset = offset
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104 if name:
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105 self.name = name
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106 else:
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107 self.name = "Etc/GMT%+d" % self.offset
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108
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109 def utcoffset(self, dt):
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110 return datetime.timedelta(hours=self.offset)
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111
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112 def tzname(self, dt):
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113 return self.name
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114
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115 def dst(self, dt):
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116 return _timedelta0
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117
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118 def __repr__(self):
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119 return "<%s: %s>" % (self.__class__.__name__, self.name)
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120
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121 # pytz adjustments interface
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122
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123 def normalize(self, dt):
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124 return dt.replace(tzinfo=self)
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125
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126 def localize(self, dt, is_dst=False):
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127 return dt.replace(tzinfo=self)
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128
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129 # simple timezones with fixed offset
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130 _tzoffsets = dict(GMT=0, UCT=0, EST=5, MST=7, HST=10)
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131
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132 def get_timezone(tz):
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133 # if tz is None, return None (will result in naive datetimes)
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134 # XXX should we return UTC for None?
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135 if tz is None:
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136 return None
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137 # try integer offset first for backward compatibility
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138 try:
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139 utcoffset = int(tz)
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140 except (TypeError, ValueError):
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141 pass
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142 else:
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143 if utcoffset == 0:
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144 return UTC
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145 else:
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146 return SimpleTimezone(utcoffset)
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147 # tz is a timezone name
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148 if pytz:
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149 return pytz.timezone(tz)
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150 elif tz == "UTC":
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151 return UTC
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152 elif tz in _tzoffsets:
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153 return SimpleTimezone(_tzoffsets[tz], tz)
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154 else:
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155 raise KeyError, tz
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156
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157 def _utc_to_local(y,m,d,H,M,S,tz):
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158 TZ = get_timezone(tz)
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159 frac = S - int(S)
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160 dt = datetime.datetime(y, m, d, H, M, int(S), tzinfo=UTC)
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161 y,m,d,H,M,S = dt.astimezone(TZ).timetuple()[:6]
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162 S = S + frac
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163 return (y,m,d,H,M,S)
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164
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165 def _local_to_utc(y,m,d,H,M,S,tz):
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166 TZ = get_timezone(tz)
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167 dt = datetime.datetime(y,m,d,H,M,int(S))
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168 y,m,d,H,M,S = TZ.localize(dt).utctimetuple()[:6]
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169 return (y,m,d,H,M,S)
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170
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171 class Date:
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172 '''
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173 As strings, date-and-time stamps are specified with the date in
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174 international standard format (yyyy-mm-dd) joined to the time
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175 (hh:mm:ss) by a period ("."). Dates in this form can be easily compared
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176 and are fairly readable when printed. An example of a valid stamp is
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177 "2000-06-24.13:03:59". We'll call this the "full date format". When
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178 Timestamp objects are printed as strings, they appear in the full date
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179 format with the time always given in GMT. The full date format is
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180 always exactly 19 characters long.
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181
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182 For user input, some partial forms are also permitted: the whole time
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183 or just the seconds may be omitted; and the whole date may be omitted
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184 or just the year may be omitted. If the time is given, the time is
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185 interpreted in the user's local time zone. The Date constructor takes
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186 care of these conversions. In the following examples, suppose that yyyy
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187 is the current year, mm is the current month, and dd is the current day
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188 of the month; and suppose that the user is on Eastern Standard Time.
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189 Examples::
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190
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191 "2000-04-17" means <Date 2000-04-17.00:00:00>
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192 "01-25" means <Date yyyy-01-25.00:00:00>
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193 "2000-04-17.03:45" means <Date 2000-04-17.08:45:00>
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194 "08-13.22:13" means <Date yyyy-08-14.03:13:00>
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195 "11-07.09:32:43" means <Date yyyy-11-07.14:32:43>
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196 "14:25" means <Date yyyy-mm-dd.19:25:00>
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197 "8:47:11" means <Date yyyy-mm-dd.13:47:11>
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198 "2003" means <Date 2003-01-01.00:00:00>
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199 "2003-06" means <Date 2003-06-01.00:00:00>
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200 "." means "right now"
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201
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202 The Date class should understand simple date expressions of the form
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203 stamp + interval and stamp - interval. When adding or subtracting
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204 intervals involving months or years, the components are handled
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205 separately. For example, when evaluating "2000-06-25 + 1m 10d", we
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206 first add one month to get 2000-07-25, then add 10 days to get
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207 2000-08-04 (rather than trying to decide whether 1m 10d means 38 or 40
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208 or 41 days). Example usage::
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209
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210 >>> Date(".")
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211 <Date 2000-06-26.00:34:02>
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212 >>> _.local(-5)
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213 "2000-06-25.19:34:02"
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214 >>> Date(". + 2d")
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215 <Date 2000-06-28.00:34:02>
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216 >>> Date("1997-04-17", -5)
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217 <Date 1997-04-17.00:00:00>
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218 >>> Date("01-25", -5)
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219 <Date 2000-01-25.00:00:00>
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220 >>> Date("08-13.22:13", -5)
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221 <Date 2000-08-14.03:13:00>
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222 >>> Date("14:25", -5)
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223 <Date 2000-06-25.19:25:00>
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224
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225 The date format 'yyyymmddHHMMSS' (year, month, day, hour,
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226 minute, second) is the serialisation format returned by the serialise()
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227 method, and is accepted as an argument on instatiation.
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228
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229 The date class handles basic arithmetic::
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230
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231 >>> d1=Date('.')
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232 >>> d1
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233 <Date 2004-04-06.22:04:20.766830>
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234 >>> d2=Date('2003-07-01')
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235 >>> d2
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236 <Date 2003-07-01.00:00:0.000000>
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237 >>> d1-d2
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238 <Interval + 280d 22:04:20>
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239 >>> i1=_
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240 >>> d2+i1
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241 <Date 2004-04-06.22:04:20.000000>
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242 >>> d1-i1
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243 <Date 2003-07-01.00:00:0.000000>
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244 '''
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245
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246 def __init__(self, spec='.', offset=0, add_granularity=0, translator=i18n):
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247 """Construct a date given a specification and a time zone offset.
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248
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249 'spec'
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250 is a full date or a partial form, with an optional added or
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251 subtracted interval. Or a date 9-tuple.
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252 'offset'
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253 is the local time zone offset from GMT in hours.
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254 'translator'
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255 is i18n module or one of gettext translation classes.
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256 It must have attributes 'gettext' and 'ngettext',
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257 serving as translation functions.
25
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258 """
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259 self.setTranslator(translator)
47
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260 if type(spec) == type(''):
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261 self.set(spec, offset=offset, add_granularity=add_granularity)
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262 return
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263 elif isinstance(spec, datetime.datetime):
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264 # Python 2.3+ datetime object
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265 y,m,d,H,M,S,x,x,x = spec.timetuple()
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266 if y < 1970: raise ValueError, 'year must be > 1970'
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267 S += spec.microsecond/1000000.
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268 spec = (y,m,d,H,M,S,x,x,x)
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269 elif hasattr(spec, 'tuple'):
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270 spec = spec.tuple()
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271 elif isinstance(spec, Date):
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272 spec = spec.get_tuple()
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273 try:
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274 y,m,d,H,M,S,x,x,x = spec
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275 if y < 1970: raise ValueError, 'year must be > 1970'
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276 frac = S - int(S)
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277 self.year, self.month, self.day, self.hour, self.minute, \
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278 self.second = _local_to_utc(y, m, d, H, M, S, offset)
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279 # we lost the fractional part
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280 self.second = self.second + frac
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281 except:
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282 raise ValueError, 'Unknown spec %r' % (spec,)
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283
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284 def set(self, spec, offset=0, date_re=date_re,
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285 serialised_re=serialised_date_re, add_granularity=0):
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286 ''' set the date to the value in spec
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287 '''
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288
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289 m = serialised_re.match(spec)
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290 if m is not None:
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291 # we're serialised - easy!
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292 g = m.groups()
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293 (self.year, self.month, self.day, self.hour, self.minute) = \
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294 map(int, g[:5])
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295 self.second = float(g[5])
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296 return
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297
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298 # not serialised data, try usual format
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299 m = date_re.match(spec)
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300 if m is None:
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301 raise ValueError, self._('Not a date spec: '
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302 '"yyyy-mm-dd", "mm-dd", "HH:MM", "HH:MM:SS" or '
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303 '"yyyy-mm-dd.HH:MM:SS.SSS"')
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304
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diff changeset
305 info = m.groupdict()
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diff changeset
306
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307 if add_granularity:
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diff changeset
308 _add_granularity(info, 'SMHdmyab')
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diff changeset
309
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310 # get the current date as our default
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diff changeset
311 ts = time.time()
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312 frac = ts - int(ts)
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diff changeset
313 y,m,d,H,M,S,x,x,x = time.gmtime(ts)
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diff changeset
314 # gmtime loses the fractional seconds
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315 S = S + frac
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316
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317 # whether we need to convert to UTC
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318 adjust = False
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diff changeset
319
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320 if info['y'] is not None or info['a'] is not None:
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321 if info['y'] is not None:
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diff changeset
322 y = int(info['y'])
3231
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323 if y < 1970: raise ValueError, 'year must be > 1970'
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diff changeset
324 m,d = (1,1)
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diff changeset
325 if info['m'] is not None:
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326 m = int(info['m'])
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327 if info['d'] is not None:
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328 d = int(info['d'])
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329 if info['a'] is not None:
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330 m = int(info['a'])
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diff changeset
331 d = int(info['b'])
3619
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diff changeset
332 H = 0
1535
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diff changeset
333 M = S = 0
3619
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diff changeset
334 adjust = True
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diff changeset
335
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336 # override hour, minute, second parts
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diff changeset
337 if info['H'] is not None and info['M'] is not None:
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diff changeset
338 H = int(info['H'])
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339 M = int(info['M'])
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diff changeset
340 S = 0
2100
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341 if info['S'] is not None:
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342 S = float(info['S'])
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343 adjust = True
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diff changeset
344
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345 if add_granularity:
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346 S = S - 1
2339
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diff changeset
347
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348 # now handle the adjustment of hour
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diff changeset
349 frac = S - int(S)
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diff changeset
350 ts = calendar.timegm((y,m,d,H,M,S,0,0,0))
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diff changeset
351 y, m, d, H, M, S, x, x, x = time.gmtime(ts)
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diff changeset
352 if adjust:
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diff changeset
353 y, m, d, H, M, S = _local_to_utc(y, m, d, H, M, S, offset)
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diff changeset
354 self.year, self.month, self.day, self.hour, self.minute, \
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diff changeset
355 self.second = y, m, d, H, M, S
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diff changeset
356 # we lost the fractional part along the way
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diff changeset
357 self.second = self.second + frac
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diff changeset
358
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diff changeset
359 if info.get('o', None):
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diff changeset
360 try:
1537
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diff changeset
361 self.applyInterval(Interval(info['o'], allowdate=0))
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diff changeset
362 except ValueError:
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diff changeset
363 raise ValueError, self._('%r not a date / time spec '
6feac4fcf883 Various bug fixes.
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diff changeset
364 '"yyyy-mm-dd", "mm-dd", "HH:MM", "HH:MM:SS" or '
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diff changeset
365 '"yyyy-mm-dd.HH:MM:SS.SSS"')%(spec,)
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diff changeset
366
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diff changeset
367 def addInterval(self, interval):
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diff changeset
368 ''' Add the interval to this date, returning the date tuple
25
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parents:
diff changeset
369 '''
640
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diff changeset
370 # do the basic calc
861
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diff changeset
371 sign = interval.sign
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diff changeset
372 year = self.year + sign * interval.year
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parents: 720
diff changeset
373 month = self.month + sign * interval.month
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diff changeset
374 day = self.day + sign * interval.day
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parents: 720
diff changeset
375 hour = self.hour + sign * interval.hour
68cef2bb929d fixed the date module so that Date(". - 2d") works
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diff changeset
376 minute = self.minute + sign * interval.minute
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377 # Intervals work on whole seconds
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378 second = int(self.second) + sign * interval.second
640
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parents: 585
diff changeset
379
7dd13fd5d8ea fixed some problems in date calculations
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diff changeset
380 # now cope with under- and over-flow
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diff changeset
381 # first do the time
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parents: 585
diff changeset
382 while (second < 0 or second > 59 or minute < 0 or minute > 59 or
1941
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Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
383 hour < 0 or hour > 23):
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
384 if second < 0: minute -= 1; second += 60
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
385 elif second > 59: minute += 1; second -= 60
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
386 if minute < 0: hour -= 1; minute += 60
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
387 elif minute > 59: hour += 1; minute -= 60
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
388 if hour < 0: day -= 1; hour += 24
1941
bcc65c5b86e6 fixed date arithmetic to not allow day-of-month == 0 [SF#853306]
Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
389 elif hour > 23: day += 1; hour -= 24
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
390
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
391 # fix up the month so we're within range
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
392 while month < 1 or month > 12:
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
393 if month < 1: year -= 1; month += 12
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
394 if month > 12: year += 1; month -= 12
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
395
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
396 # now do the days, now that we know what month we're in
1941
bcc65c5b86e6 fixed date arithmetic to not allow day-of-month == 0 [SF#853306]
Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
397 def get_mdays(year, month):
1885
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
398 if month == 2 and calendar.isleap(year): return 29
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
399 else: return calendar.mdays[month]
1941
bcc65c5b86e6 fixed date arithmetic to not allow day-of-month == 0 [SF#853306]
Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
400
bcc65c5b86e6 fixed date arithmetic to not allow day-of-month == 0 [SF#853306]
Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
401 while month < 1 or month > 12 or day < 1 or day > get_mdays(year,month):
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
402 # now to day under/over
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
403 if day < 1:
1885
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
404 # When going backwards, decrement month, then increment days
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
405 month -= 1
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
406 day += get_mdays(year,month)
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
407 elif day > get_mdays(year,month):
1885
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
408 # When going forwards, decrement days, then increment month
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
409 day -= get_mdays(year,month)
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
410 month += 1
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
411
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
412 # possibly fix up the month so we're within range
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
413 while month < 1 or month > 12:
1885
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
414 if month < 1: year -= 1; month += 12 ; day += 31
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
415 if month > 12: year += 1; month -= 12
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
416
861
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
417 return (year, month, day, hour, minute, second, 0, 0, 0)
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
418
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
419 def differenceDate(self, other):
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
420 "Return the difference between this date and another date"
2189
d39068bc6ef9 implement differenceDate ;)
Richard Jones <richard@users.sourceforge.net>
parents: 2188
diff changeset
421 return self - other
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
422
861
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
423 def applyInterval(self, interval):
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
424 ''' Apply the interval to this date
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
425 '''
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
426 self.year, self.month, self.day, self.hour, self.minute, \
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
427 self.second, x, x, x = self.addInterval(interval)
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
428
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
429 def __add__(self, interval):
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
430 """Add an interval to this date to produce another date.
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
431 """
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
432 return Date(self.addInterval(interval), translator=self.translator)
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
433
1103
db787cef1385 handled some XXXs
Richard Jones <richard@users.sourceforge.net>
parents: 1094
diff changeset
434 # deviates from spec to allow subtraction of dates as well
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
435 def __sub__(self, other):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
436 """ Subtract:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
437 1. an interval from this date to produce another date.
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
438 2. a date from this date to produce an interval.
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
439 """
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
440 if isinstance(other, Interval):
1094
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
441 other = Interval(other.get_tuple())
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
442 other.sign *= -1
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
443 return self.__add__(other)
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
444
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
445 assert isinstance(other, Date), 'May only subtract Dates or Intervals'
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
446
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
447 return self.dateDelta(other)
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
448
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
449 def dateDelta(self, other):
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
450 """ Produce an Interval of the difference between this date
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
451 and another date. Only returns days:hours:minutes:seconds.
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
452 """
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
453 # Returning intervals larger than a day is almost
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
454 # impossible - months, years, weeks, are all so imprecise.
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
455 a = calendar.timegm((self.year, self.month, self.day, self.hour,
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
456 self.minute, self.second, 0, 0, 0))
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
457 b = calendar.timegm((other.year, other.month, other.day,
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
458 other.hour, other.minute, other.second, 0, 0, 0))
2100
62ed6505cbec MySQL migration of old backend database to new, typed database complete.
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
459 # intervals work in whole seconds
62ed6505cbec MySQL migration of old backend database to new, typed database complete.
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
460 diff = int(a - b)
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
461 if diff > 0:
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
462 sign = 1
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
463 else:
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
464 sign = -1
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
465 diff = -diff
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
466 S = diff%60
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
467 M = (diff/60)%60
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
468 H = (diff/(60*60))%24
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
469 d = diff/(24*60*60)
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
470 return Interval((0, 0, d, H, M, S), sign=sign,
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
471 translator=self.translator)
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
472
2102
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
473 def __cmp__(self, other, int_seconds=0):
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
474 """Compare this date to another date."""
543
22e0edf7da6e lots of date/interval related changes: more relaxed date format for input
Richard Jones <richard@users.sourceforge.net>
parents: 501
diff changeset
475 if other is None:
22e0edf7da6e lots of date/interval related changes: more relaxed date format for input
Richard Jones <richard@users.sourceforge.net>
parents: 501
diff changeset
476 return 1
2102
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
477 for attr in ('year', 'month', 'day', 'hour', 'minute'):
890
a568596dbea7 Unit tests and a few fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 861
diff changeset
478 if not hasattr(other, attr):
a568596dbea7 Unit tests and a few fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 861
diff changeset
479 return 1
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
480 r = cmp(getattr(self, attr), getattr(other, attr))
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
481 if r: return r
2102
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
482 if not hasattr(other, 'second'):
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
483 return 1
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
484 if int_seconds:
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
485 return cmp(int(self.second), int(other.second))
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
486 return cmp(self.second, other.second)
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
487
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
488 def __str__(self):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
489 """Return this date as a string in the yyyy-mm-dd.hh:mm:ss format."""
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
490 return self.formal()
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
491
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
492 def formal(self, sep='.', sec='%02d'):
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
493 f = '%%4d-%%02d-%%02d%s%%02d:%%02d:%s'%(sep, sec)
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
494 return f%(self.year, self.month, self.day, self.hour, self.minute,
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
495 self.second)
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
496
1272
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
497 def pretty(self, format='%d %B %Y'):
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
498 ''' print up the date date using a pretty format...
1272
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
499
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
500 Note that if the day is zero, and the day appears first in the
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
501 format, then the day number will be removed from output.
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
502 '''
3028
de242e68c69b fix py2.4 strftime() API change bug [SF#1087746]
Richard Jones <richard@users.sourceforge.net>
parents: 2981
diff changeset
503 # Python2.4 strftime() enforces the non-zero-ness of the day-of-year
de242e68c69b fix py2.4 strftime() API change bug [SF#1087746]
Richard Jones <richard@users.sourceforge.net>
parents: 2981
diff changeset
504 # component of the time tuple, so we need to figure it out
de242e68c69b fix py2.4 strftime() API change bug [SF#1087746]
Richard Jones <richard@users.sourceforge.net>
parents: 2981
diff changeset
505 t = (self.year, self.month, self.day, self.hour, self.minute,
de242e68c69b fix py2.4 strftime() API change bug [SF#1087746]
Richard Jones <richard@users.sourceforge.net>
parents: 2981
diff changeset
506 int(self.second), 0, 0, 0)
de242e68c69b fix py2.4 strftime() API change bug [SF#1087746]
Richard Jones <richard@users.sourceforge.net>
parents: 2981
diff changeset
507 t = calendar.timegm(t)
de242e68c69b fix py2.4 strftime() API change bug [SF#1087746]
Richard Jones <richard@users.sourceforge.net>
parents: 2981
diff changeset
508 t = time.gmtime(t)
de242e68c69b fix py2.4 strftime() API change bug [SF#1087746]
Richard Jones <richard@users.sourceforge.net>
parents: 2981
diff changeset
509 str = time.strftime(format, t)
de242e68c69b fix py2.4 strftime() API change bug [SF#1087746]
Richard Jones <richard@users.sourceforge.net>
parents: 2981
diff changeset
510
1272
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
511 # handle zero day by removing it
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
512 if format.startswith('%d') and str[0] == '0':
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
513 return ' ' + str[1:]
585
c08fb4921eda %e is a UNIXism and not documented for Python
Jürgen Hermann <jhermann@users.sourceforge.net>
parents: 543
diff changeset
514 return str
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
515
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
516 def __repr__(self):
3612
afda59d5d546 prevent generation of new single-digit seconds dates [SF#1429390]
Richard Jones <richard@users.sourceforge.net>
parents: 3611
diff changeset
517 return '<Date %s>'%self.formal(sec='%06.3f')
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
518
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
519 def local(self, offset):
1318
46a1951fdb14 fix Date.local()
Richard Jones <richard@users.sourceforge.net>
parents: 1272
diff changeset
520 """ Return this date as yyyy-mm-dd.hh:mm:ss in a local time zone.
46a1951fdb14 fix Date.local()
Richard Jones <richard@users.sourceforge.net>
parents: 1272
diff changeset
521 """
3619
df7bff6f8a2f full timezone support (based on patch [SF#1465296])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3612
diff changeset
522 y, m, d, H, M, S = _utc_to_local(self.year, self.month, self.day,
df7bff6f8a2f full timezone support (based on patch [SF#1465296])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3612
diff changeset
523 self.hour, self.minute, self.second, offset)
df7bff6f8a2f full timezone support (based on patch [SF#1465296])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3612
diff changeset
524 return Date((y, m, d, H, M, S, 0, 0, 0), translator=self.translator)
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525
2359
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parents: 2339
diff changeset
526 def __deepcopy__(self, memo):
8611bf29baec deepcopy was broken for date stuff
Richard Jones <richard@users.sourceforge.net>
parents: 2339
diff changeset
527 return Date((self.year, self.month, self.day, self.hour,
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
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parents: 2359
diff changeset
528 self.minute, self.second, 0, 0, 0), translator=self.translator)
2359
8611bf29baec deepcopy was broken for date stuff
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parents: 2339
diff changeset
529
47
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
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parents: 26
diff changeset
530 def get_tuple(self):
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
Richard Jones <richard@users.sourceforge.net>
parents: 26
diff changeset
531 return (self.year, self.month, self.day, self.hour, self.minute,
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
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parents: 26
diff changeset
532 self.second, 0, 0, 0)
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533
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parents: 890
diff changeset
534 def serialise(self):
3612
afda59d5d546 prevent generation of new single-digit seconds dates [SF#1429390]
Richard Jones <richard@users.sourceforge.net>
parents: 3611
diff changeset
535 return '%4d%02d%02d%02d%02d%06.3f'%(self.year, self.month,
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
536 self.day, self.hour, self.minute, self.second)
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
537
1946
c538a64b94a7 Refactored CGI file serving so that FileClass contents are...
Richard Jones <richard@users.sourceforge.net>
parents: 1941
diff changeset
538 def timestamp(self):
c538a64b94a7 Refactored CGI file serving so that FileClass contents are...
Richard Jones <richard@users.sourceforge.net>
parents: 1941
diff changeset
539 ''' return a UNIX timestamp for this date '''
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
540 frac = self.second - int(self.second)
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
541 ts = calendar.timegm((self.year, self.month, self.day, self.hour,
1946
c538a64b94a7 Refactored CGI file serving so that FileClass contents are...
Richard Jones <richard@users.sourceforge.net>
parents: 1941
diff changeset
542 self.minute, self.second, 0, 0, 0))
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
543 # we lose the fractional part
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
544 return ts + frac
1946
c538a64b94a7 Refactored CGI file serving so that FileClass contents are...
Richard Jones <richard@users.sourceforge.net>
parents: 1941
diff changeset
545
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
546 def setTranslator(self, translator):
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
547 """Replace the translation engine
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
548
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
549 'translator'
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
550 is i18n module or one of gettext translation classes.
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
551 It must have attributes 'gettext' and 'ngettext',
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
552 serving as translation functions.
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
553 """
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
554 self.translator = translator
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
555 self._ = translator.gettext
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
556 self.ngettext = translator.ngettext
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
557
25
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diff changeset
558 class Interval:
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parents:
diff changeset
559 '''
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diff changeset
560 Date intervals are specified using the suffixes "y", "m", and "d". The
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parents:
diff changeset
561 suffix "w" (for "week") means 7 days. Time intervals are specified in
4cf1daf2f2eb More Grande Splite
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parents:
diff changeset
562 hh:mm:ss format (the seconds may be omitted, but the hours and minutes
4cf1daf2f2eb More Grande Splite
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parents:
diff changeset
563 may not).
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parents:
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564
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parents:
diff changeset
565 "3y" means three years
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parents:
diff changeset
566 "2y 1m" means two years and one month
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parents:
diff changeset
567 "1m 25d" means one month and 25 days
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parents:
diff changeset
568 "2w 3d" means two weeks and three days
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parents:
diff changeset
569 "1d 2:50" means one day, two hours, and 50 minutes
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parents:
diff changeset
570 "14:00" means 14 hours
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parents:
diff changeset
571 "0:04:33" means four minutes and 33 seconds
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parents:
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572
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diff changeset
573 Example usage:
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diff changeset
574 >>> Interval(" 3w 1 d 2:00")
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Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
575 <Interval + 22d 2:00>
640
7dd13fd5d8ea fixed some problems in date calculations
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parents: 585
diff changeset
576 >>> Date(". + 2d") + Interval("- 3w")
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parents:
diff changeset
577 <Date 2000-06-07.00:34:02>
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
578 >>> Interval('1:59:59') + Interval('00:00:01')
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
579 <Interval + 2:00>
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
580 >>> Interval('2:00') + Interval('- 00:00:01')
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
581 <Interval + 1:59:59>
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
582 >>> Interval('1y')/2
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
583 <Interval + 6m>
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
584 >>> Interval('1:00')/2
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
585 <Interval + 0:30>
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
586 >>> Interval('2003-03-18')
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
587 <Interval + [number of days between now and 2003-03-18]>
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
588 >>> Interval('-4d 2003-03-18')
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
589 <Interval + [number of days between now and 2003-03-14]>
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
590
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
591 Interval arithmetic is handled in a couple of special ways, trying
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
592 to cater for the most common cases. Fundamentally, Intervals which
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
593 have both date and time parts will result in strange results in
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
594 arithmetic - because of the impossibility of handling day->month->year
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
595 over- and under-flows. Intervals may also be divided by some number.
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
596
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
597 Intervals are added to Dates in order of:
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
598 seconds, minutes, hours, years, months, days
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
599
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
600 Calculations involving months (eg '+2m') have no effect on days - only
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
601 days (or over/underflow from hours/mins/secs) will do that, and
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
602 days-per-month and leap years are accounted for. Leap seconds are not.
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
603
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
604 The interval format 'syyyymmddHHMMSS' (sign, year, month, day, hour,
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
605 minute, second) is the serialisation format returned by the serialise()
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
606 method, and is accepted as an argument on instatiation.
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
607
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
608 TODO: more examples, showing the order of addition operation
25
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parents:
diff changeset
609 '''
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
610 def __init__(self, spec, sign=1, allowdate=1, add_granularity=0,
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
611 translator=i18n
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
612 ):
25
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parents:
diff changeset
613 """Construct an interval given a specification."""
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
614 self.setTranslator(translator)
3349
9c65e32514aa types module delenda est
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 3231
diff changeset
615 if isinstance(spec, (int, float, long)):
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
616 self.from_seconds(spec)
3349
9c65e32514aa types module delenda est
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 3231
diff changeset
617 elif isinstance(spec, basestring):
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
618 self.set(spec, allowdate=allowdate, add_granularity=add_granularity)
2729
797725ec50c5 date.Interval() now accepts an Interval as a spec [SF#1041266]
Richard Jones <richard@users.sourceforge.net>
parents: 2702
diff changeset
619 elif isinstance(spec, Interval):
797725ec50c5 date.Interval() now accepts an Interval as a spec [SF#1041266]
Richard Jones <richard@users.sourceforge.net>
parents: 2702
diff changeset
620 (self.sign, self.year, self.month, self.day, self.hour,
797725ec50c5 date.Interval() now accepts an Interval as a spec [SF#1041266]
Richard Jones <richard@users.sourceforge.net>
parents: 2702
diff changeset
621 self.minute, self.second) = spec.get_tuple()
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parents:
diff changeset
622 else:
1094
854d45f8b745 fixes to tests and Interval unmarshalling
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parents: 1090
diff changeset
623 if len(spec) == 7:
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
624 self.sign, self.year, self.month, self.day, self.hour, \
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
625 self.minute, self.second = spec
2100
62ed6505cbec MySQL migration of old backend database to new, typed database complete.
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
626 self.second = int(self.second)
1094
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
627 else:
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
628 # old, buggy spec form
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
629 self.sign = sign
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
630 self.year, self.month, self.day, self.hour, self.minute, \
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
631 self.second = spec
2100
62ed6505cbec MySQL migration of old backend database to new, typed database complete.
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
632 self.second = int(self.second)
25
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diff changeset
633
2359
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parents: 2339
diff changeset
634 def __deepcopy__(self, memo):
8611bf29baec deepcopy was broken for date stuff
Richard Jones <richard@users.sourceforge.net>
parents: 2339
diff changeset
635 return Interval((self.sign, self.year, self.month, self.day,
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
636 self.hour, self.minute, self.second), translator=self.translator)
2359
8611bf29baec deepcopy was broken for date stuff
Richard Jones <richard@users.sourceforge.net>
parents: 2339
diff changeset
637
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
638 def set(self, spec, allowdate=1, interval_re=re.compile('''
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
639 \s*(?P<s>[-+])? # + or -
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
640 \s*((?P<y>\d+\s*)y)? # year
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
641 \s*((?P<m>\d+\s*)m)? # month
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
642 \s*((?P<w>\d+\s*)w)? # week
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
643 \s*((?P<d>\d+\s*)d)? # day
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
644 \s*(((?P<H>\d+):(?P<M>\d+))?(:(?P<S>\d+))?)? # time
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
645 \s*(?P<D>
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
646 (\d\d\d\d[/-])?(\d\d?)?[/-](\d\d?)? # [yyyy-]mm-dd
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
647 \.? # .
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
648 (\d?\d:\d\d)?(:\d\d)? # hh:mm:ss
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
649 )?''', re.VERBOSE), serialised_re=re.compile('''
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
650 (?P<s>[+-])?1?(?P<y>([ ]{3}\d|\d{4}))(?P<m>\d{2})(?P<d>\d{2})
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
651 (?P<H>\d{2})(?P<M>\d{2})(?P<S>\d{2})''', re.VERBOSE),
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
652 add_granularity=0):
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
653 ''' set the date to the value in spec
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
654 '''
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
655 self.year = self.month = self.week = self.day = self.hour = \
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
656 self.minute = self.second = 0
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
657 self.sign = 1
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
658 m = serialised_re.match(spec)
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
659 if not m:
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
660 m = interval_re.match(spec)
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
661 if not m:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
662 raise ValueError, self._('Not an interval spec:'
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
663 ' [+-] [#y] [#m] [#w] [#d] [[[H]H:MM]:SS] [date spec]')
1542
3faabaeab6aa fixed date unserialisation for *dbm backends
Richard Jones <richard@users.sourceforge.net>
parents: 1537
diff changeset
664 else:
3faabaeab6aa fixed date unserialisation for *dbm backends
Richard Jones <richard@users.sourceforge.net>
parents: 1537
diff changeset
665 allowdate = 0
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
666
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
667 # pull out all the info specified
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
668 info = m.groupdict()
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
669 if add_granularity:
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
670 _add_granularity(info, 'SMHdwmy', (info['s']=='-' and -1 or 1))
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
671
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
672 valid = 0
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
673 for group, attr in {'y':'year', 'm':'month', 'w':'week', 'd':'day',
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
674 'H':'hour', 'M':'minute', 'S':'second'}.items():
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
675 if info.get(group, None) is not None:
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
676 valid = 1
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
677 setattr(self, attr, int(info[group]))
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
678
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
679 # make sure it's valid
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
680 if not valid and not info['D']:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
681 raise ValueError, self._('Not an interval spec:'
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
682 ' [+-] [#y] [#m] [#w] [#d] [[[H]H:MM]:SS]')
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
683
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
684 if self.week:
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
685 self.day = self.day + self.week*7
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
686
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
687 if info['s'] is not None:
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
688 self.sign = {'+':1, '-':-1}[info['s']]
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
689
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
690 # use a date spec if one is given
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
691 if allowdate and info['D'] is not None:
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
692 now = Date('.')
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
693 date = Date(info['D'])
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
694 # if no time part was specified, nuke it in the "now" date
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
695 if not date.hour or date.minute or date.second:
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
696 now.hour = now.minute = now.second = 0
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
697 if date != now:
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
698 y = now - (date + self)
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
699 self.__init__(y.get_tuple())
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
700
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
701 def __cmp__(self, other):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
702 """Compare this interval to another interval."""
543
22e0edf7da6e lots of date/interval related changes: more relaxed date format for input
Richard Jones <richard@users.sourceforge.net>
parents: 501
diff changeset
703 if other is None:
1505
c101d2ff5a20 fix to [SF#691071], really this time
Richard Jones <richard@users.sourceforge.net>
parents: 1499
diff changeset
704 # we are always larger than None
543
22e0edf7da6e lots of date/interval related changes: more relaxed date format for input
Richard Jones <richard@users.sourceforge.net>
parents: 501
diff changeset
705 return 1
1494
66cc5c2819dd oops, Interval sorting ignored sign
Richard Jones <richard@users.sourceforge.net>
parents: 1487
diff changeset
706 for attr in 'sign year month day hour minute second'.split():
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
707 r = cmp(getattr(self, attr), getattr(other, attr))
1494
66cc5c2819dd oops, Interval sorting ignored sign
Richard Jones <richard@users.sourceforge.net>
parents: 1487
diff changeset
708 if r:
66cc5c2819dd oops, Interval sorting ignored sign
Richard Jones <richard@users.sourceforge.net>
parents: 1487
diff changeset
709 return r
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
710 return 0
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
711
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
712 def __str__(self):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
713 """Return this interval as a string."""
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
714 l = []
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
715 if self.year: l.append('%sy'%self.year)
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
716 if self.month: l.append('%sm'%self.month)
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
717 if self.day: l.append('%sd'%self.day)
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
718 if self.second:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
719 l.append('%d:%02d:%02d'%(self.hour, self.minute, self.second))
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
720 elif self.hour or self.minute:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
721 l.append('%d:%02d'%(self.hour, self.minute))
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
722 if l:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
723 l.insert(0, {1:'+', -1:'-'}[self.sign])
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
724 else:
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
725 l.append('00:00')
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
726 return ' '.join(l)
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
727
1268
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
728 def __add__(self, other):
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
729 if isinstance(other, Date):
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
730 # the other is a Date - produce a Date
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
731 return Date(other.addInterval(self), translator=self.translator)
1268
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
732 elif isinstance(other, Interval):
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
733 # add the other Interval to this one
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
734 a = self.get_tuple()
3702
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
735 asgn = a[0]
1268
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
736 b = other.get_tuple()
3702
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
737 bsgn = b[0]
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
738 i = [asgn*x + bsgn*y for x,y in zip(a[1:],b[1:])]
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
739 i.insert(0, 1)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
740 i = fixTimeOverflow(i)
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
741 return Interval(i, translator=self.translator)
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
742 # nope, no idea what to do with this other...
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
743 raise TypeError, "Can't add %r"%other
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
744
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
745 def __sub__(self, other):
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
746 if isinstance(other, Date):
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
747 # the other is a Date - produce a Date
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
748 interval = Interval(self.get_tuple())
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
749 interval.sign *= -1
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
750 return Date(other.addInterval(interval),
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
751 translator=self.translator)
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
752 elif isinstance(other, Interval):
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
753 # add the other Interval to this one
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
754 a = self.get_tuple()
3702
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
755 asgn = a[0]
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
756 b = other.get_tuple()
3702
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
757 bsgn = b[0]
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
758 i = [asgn*x - bsgn*y for x,y in zip(a[1:],b[1:])]
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
759 i.insert(0, 1)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
760 i = fixTimeOverflow(i)
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
761 return Interval(i, translator=self.translator)
1268
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
762 # nope, no idea what to do with this other...
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
763 raise TypeError, "Can't add %r"%other
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
764
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
765 def __div__(self, other):
1930
71056b09f2bf Add tests for Interval.pretty().
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1894
diff changeset
766 """ Divide this interval by an int value.
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
767
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
768 Can't divide years and months sensibly in the _same_
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
769 calculation as days/time, so raise an error in that situation.
1930
71056b09f2bf Add tests for Interval.pretty().
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1894
diff changeset
770 """
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
771 try:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
772 other = float(other)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
773 except TypeError:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
774 raise ValueError, "Can only divide Intervals by numbers"
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
775
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
776 y, m, d, H, M, S = (self.year, self.month, self.day,
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
777 self.hour, self.minute, self.second)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
778 if y or m:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
779 if d or H or M or S:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
780 raise ValueError, "Can't divide Interval with date and time"
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
781 months = self.year*12 + self.month
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
782 months *= self.sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
783
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
784 months = int(months/other)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
785
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
786 sign = months<0 and -1 or 1
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
787 m = months%12
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
788 y = months / 12
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
789 return Interval((sign, y, m, 0, 0, 0, 0),
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
790 translator=self.translator)
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
791
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
792 else:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
793 # handle a day/time division
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
794 seconds = S + M*60 + H*60*60 + d*60*60*24
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
795 seconds *= self.sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
796
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
797 seconds = int(seconds/other)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
798
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
799 sign = seconds<0 and -1 or 1
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
800 seconds *= sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
801 S = seconds%60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
802 seconds /= 60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
803 M = seconds%60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
804 seconds /= 60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
805 H = seconds%24
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
806 d = seconds / 24
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
807 return Interval((sign, 0, 0, d, H, M, S),
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
808 translator=self.translator)
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
809
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
810 def __repr__(self):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
811 return '<Interval %s>'%self.__str__()
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
812
487
2f4c37d28108 I18N'ification
Richard Jones <richard@users.sourceforge.net>
parents: 406
diff changeset
813 def pretty(self):
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
814 ''' print up the date date using one of these nice formats..
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
815 '''
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
816 _quarters = self.minute / 15
720
5e0a75bfdd90 reverting to dates for intervals > 2 months sucks
Richard Jones <richard@users.sourceforge.net>
parents: 641
diff changeset
817 if self.year:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
818 s = self.ngettext("%(number)s year", "%(number)s years",
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
819 self.year) % {'number': self.year}
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
820 elif self.month or self.day > 28:
2416
Richard Jones <richard@users.sourceforge.net>
parents: 2402
diff changeset
821 _months = max(1, int(((self.month * 30) + self.day) / 30))
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
822 s = self.ngettext("%(number)s month", "%(number)s months",
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
823 _months) % {'number': _months}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
824 elif self.day > 7:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
825 _weeks = int(self.day / 7)
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
826 s = self.ngettext("%(number)s week", "%(number)s weeks",
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
827 _weeks) % {'number': _weeks}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
828 elif self.day > 1:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
829 # Note: singular form is not used
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
830 s = self.ngettext('%(number)s day', '%(number)s days',
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
831 self.day) % {'number': self.day}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
832 elif self.day == 1 or self.hour > 12:
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
833 if self.sign > 0:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
834 return self._('tomorrow')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
835 else:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
836 return self._('yesterday')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
837 elif self.hour > 1:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
838 # Note: singular form is not used
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
839 s = self.ngettext('%(number)s hour', '%(number)s hours',
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
840 self.hour) % {'number': self.hour}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
841 elif self.hour == 1:
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
842 if self.minute < 15:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
843 s = self._('an hour')
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
844 elif _quarters == 2:
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
845 s = self._('1 1/2 hours')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
846 else:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
847 s = self.ngettext('1 %(number)s/4 hours',
2416
Richard Jones <richard@users.sourceforge.net>
parents: 2402
diff changeset
848 '1 %(number)s/4 hours', _quarters)%{'number': _quarters}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
849 elif self.minute < 1:
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
850 if self.sign > 0:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
851 return self._('in a moment')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
852 else:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
853 return self._('just now')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
854 elif self.minute == 1:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
855 # Note: used in expressions "in 1 minute" or "1 minute ago"
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
856 s = self._('1 minute')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
857 elif self.minute < 15:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
858 # Note: used in expressions "in 2 minutes" or "2 minutes ago"
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
859 s = self.ngettext('%(number)s minute', '%(number)s minutes',
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
860 self.minute) % {'number': self.minute}
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
861 elif _quarters == 2:
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
862 s = self._('1/2 an hour')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
863 else:
2416
Richard Jones <richard@users.sourceforge.net>
parents: 2402
diff changeset
864 s = self.ngettext('%(number)s/4 hour', '%(number)s/4 hours',
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
865 _quarters) % {'number': _quarters}
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
866 # XXX this is internationally broken
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
867 if self.sign < 0:
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
868 s = self._('%s ago') % s
1413
4ae9d725bec4 make future intervals obvious too
Richard Jones <richard@users.sourceforge.net>
parents: 1412
diff changeset
869 else:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
870 s = self._('in %s') % s
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
871 return s
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
872
47
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
Richard Jones <richard@users.sourceforge.net>
parents: 26
diff changeset
873 def get_tuple(self):
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
874 return (self.sign, self.year, self.month, self.day, self.hour,
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
875 self.minute, self.second)
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
876
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
877 def serialise(self):
1261
85d71588a1cf fixed bug in Interval serialisation
Richard Jones <richard@users.sourceforge.net>
parents: 1192
diff changeset
878 sign = self.sign > 0 and '+' or '-'
85d71588a1cf fixed bug in Interval serialisation
Richard Jones <richard@users.sourceforge.net>
parents: 1192
diff changeset
879 return '%s%04d%02d%02d%02d%02d%02d'%(sign, self.year, self.month,
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
880 self.day, self.hour, self.minute, self.second)
47
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
Richard Jones <richard@users.sourceforge.net>
parents: 26
diff changeset
881
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
882 def as_seconds(self):
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
883 '''Calculate the Interval as a number of seconds.
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
884
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
885 Months are counted as 30 days, years as 365 days. Returns a Long
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
886 int.
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
887 '''
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
888 n = self.year * 365L
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
889 n = n + self.month * 30
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
890 n = n + self.day
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
891 n = n * 24
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
892 n = n + self.hour
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
893 n = n * 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
894 n = n + self.minute
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
895 n = n * 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
896 n = n + self.second
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
897 return n * self.sign
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
898
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
899 def from_seconds(self, val):
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
900 '''Figure my second, minute, hour and day values using a seconds
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
901 value.
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
902 '''
2981
ad04cb95e2b0 fix Interval.from_seconds() with float argument
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2729
diff changeset
903 val = int(val)
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
904 if val < 0:
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
905 self.sign = -1
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
906 val = -val
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
907 else:
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
908 self.sign = 1
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
909 self.second = val % 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
910 val = val / 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
911 self.minute = val % 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
912 val = val / 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
913 self.hour = val % 24
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
914 val = val / 24
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
915 self.day = val
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
916 self.month = self.year = 0
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
917
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
918 def setTranslator(self, translator):
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
919 """Replace the translation engine
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
920
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
921 'translator'
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
922 is i18n module or one of gettext translation classes.
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
923 It must have attributes 'gettext' and 'ngettext',
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
924 serving as translation functions.
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
925 """
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
926 self.translator = translator
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
927 self._ = translator.gettext
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
928 self.ngettext = translator.ngettext
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
929
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
930
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
931 def fixTimeOverflow(time):
1930
71056b09f2bf Add tests for Interval.pretty().
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1894
diff changeset
932 """ Handle the overflow in the time portion (H, M, S) of "time":
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
933 (sign, y,m,d,H,M,S)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
934
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
935 Overflow and underflow will at most affect the _days_ portion of
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
936 the date. We do not overflow days to months as we don't know _how_
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
937 to, generally.
1930
71056b09f2bf Add tests for Interval.pretty().
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1894
diff changeset
938 """
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
939 # XXX we could conceivably use this function for handling regular dates
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
940 # XXX too - we just need to interrogate the month/year for the day
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
941 # XXX overflow...
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
942
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
943 sign, y, m, d, H, M, S = time
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
944 seconds = sign * (S + M*60 + H*60*60 + d*60*60*24)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
945 if seconds:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
946 sign = seconds<0 and -1 or 1
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
947 seconds *= sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
948 S = seconds%60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
949 seconds /= 60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
950 M = seconds%60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
951 seconds /= 60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
952 H = seconds%24
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
953 d = seconds / 24
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
954 else:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
955 months = y*12 + m
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
956 sign = months<0 and -1 or 1
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
957 months *= sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
958 m = months%12
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
959 y = months/12
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
960
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
961 return (sign, y, m, d, H, M, S)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
962
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
963 class Range:
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
964 """Represents range between two values
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
965 Ranges can be created using one of theese two alternative syntaxes:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
966
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
967 1. Native english syntax::
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
968
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
969 [[From] <value>][ To <value>]
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
970
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
971 Keywords "From" and "To" are case insensitive. Keyword "From" is
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
972 optional.
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
973
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
974 2. "Geek" syntax::
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
975
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
976 [<value>][; <value>]
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
977
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
978 Either first or second <value> can be omitted in both syntaxes.
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
979
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
980 Examples (consider local time is Sat Mar 8 22:07:48 EET 2003)::
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
981
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
982 >>> Range("from 2-12 to 4-2")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
983 <Range from 2003-02-12.00:00:00 to 2003-04-02.00:00:00>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
984
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
985 >>> Range("18:00 TO +2m")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
986 <Range from 2003-03-08.18:00:00 to 2003-05-08.20:07:48>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
987
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
988 >>> Range("12:00")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
989 <Range from 2003-03-08.12:00:00 to None>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
990
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
991 >>> Range("tO +3d")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
992 <Range from None to 2003-03-11.20:07:48>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
993
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
994 >>> Range("2002-11-10; 2002-12-12")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
995 <Range from 2002-11-10.00:00:00 to 2002-12-12.00:00:00>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
996
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
997 >>> Range("; 20:00 +1d")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
998 <Range from None to 2003-03-09.20:00:00>
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
999
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1000 """
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1001 def __init__(self, spec, Type, allow_granularity=1, **params):
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1002 """Initializes Range of type <Type> from given <spec> string.
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
1003
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1004 Sets two properties - from_value and to_value. None assigned to any of
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1005 this properties means "infinitum" (-infinitum to from_value and
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1006 +infinitum to to_value)
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1007
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1008 The Type parameter here should be class itself (e.g. Date), not a
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1009 class instance.
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
1010
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1011 """
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1012 self.range_type = Type
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1013 re_range = r'(?:^|from(.+?))(?:to(.+?)$|$)'
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1014 re_geek_range = r'(?:^|(.+?));(?:(.+?)$|$)'
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1015 # Check which syntax to use
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1016 if spec.find(';') == -1:
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1017 # Native english
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1018 mch_range = re.search(re_range, spec.strip(), re.IGNORECASE)
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1019 else:
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1020 # Geek
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1021 mch_range = re.search(re_geek_range, spec.strip())
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1022 if mch_range:
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1023 self.from_value, self.to_value = mch_range.groups()
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1024 if self.from_value:
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1025 self.from_value = Type(self.from_value.strip(), **params)
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1026 if self.to_value:
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1027 self.to_value = Type(self.to_value.strip(), **params)
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1028 else:
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1029 if allow_granularity:
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1030 self.from_value = Type(spec, **params)
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1031 self.to_value = Type(spec, add_granularity=1, **params)
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1032 else:
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1033 raise ValueError, "Invalid range"
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1034
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1035 def __str__(self):
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1036 return "from %s to %s" % (self.from_value, self.to_value)
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1037
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1038 def __repr__(self):
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1039 return "<Range %s>" % self.__str__()
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
1040
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1041 def test_range():
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1042 rspecs = ("from 2-12 to 4-2", "from 18:00 TO +2m", "12:00;", "tO +3d",
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1043 "2002-11-10; 2002-12-12", "; 20:00 +1d", '2002-10-12')
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1044 rispecs = ('from -1w 2d 4:32 to 4d', '-2w 1d')
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1045 for rspec in rspecs:
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1046 print '>>> Range("%s")' % rspec
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1047 print `Range(rspec, Date)`
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1048 print
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1049 for rspec in rispecs:
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1050 print '>>> Range("%s")' % rspec
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1051 print `Range(rspec, Interval)`
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1052 print
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1053
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1054 def test():
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1055 intervals = (" 3w 1 d 2:00", " + 2d", "3w")
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1056 for interval in intervals:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1057 print '>>> Interval("%s")'%interval
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1058 print `Interval(interval)`
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1059
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1060 dates = (".", "2000-06-25.19:34:02", ". + 2d", "1997-04-17", "01-25",
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1061 "08-13.22:13", "14:25", '2002-12')
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1062 for date in dates:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1063 print '>>> Date("%s")'%date
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1064 print `Date(date)`
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1065
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1066 sums = ((". + 2d", "3w"), (".", " 3w 1 d 2:00"))
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1067 for date, interval in sums:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1068 print '>>> Date("%s") + Interval("%s")'%(date, interval)
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1069 print `Date(date) + Interval(interval)`
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1070
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1071 if __name__ == '__main__':
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1072 test()
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1073
3210
ea29d69f7415 fix error message formatting in Date.__init__;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3151
diff changeset
1074 # vim: set filetype=python sts=4 sw=4 et si :
Roundup Issue Tracker: http://roundup-tracker.org/