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annotate hyperdb.py @ 19:a5eb90ae8903

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Fixed a bug in the filter wrong variable names in the error message. Recognised that the filter has an outstanding bug. Hrm. we need a bug tracker for this project :)
author Richard Jones <richard@users.sourceforge.net>
date Fri, 20 Jul 2001 08:20:24 +0000
parents bb0572c92f23
children
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rev   line source
19
a5eb90ae8903 Fixed a bug in the filter
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1 # $Id: hyperdb.py,v 1.6 2001-07-20 08:20:24 richard Exp $
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2
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3 # standard python modules
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4 import cPickle, re, string
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5
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6 # roundup modules
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7 import date
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8
5
72a0ba086b3e Added CVS keywords $Id$ and $Log$ to all python files.
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9
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10 RETIRED_FLAG = '__hyperdb_retired'
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12 #
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13 # Here's where we figure which db to use....
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14 #
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15 import hyperdb_bsddb
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16 Database = hyperdb_bsddb.Database
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17 hyperdb_bsddb.RETIRED_FLAG = RETIRED_FLAG
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18
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19
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20 #
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21 # Types
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22 #
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23 class BaseType:
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24 isStringType = 0
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25 isDateType = 0
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26 isIntervalType = 0
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27 isLinkType = 0
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28 isMultilinkType = 0
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29
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30 class String(BaseType):
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31 def __init__(self):
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32 """An object designating a String property."""
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33 pass
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34 def __repr__(self):
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35 return '<%s>'%self.__class__
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36 isStringType = 1
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37
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38 class Date(BaseType, String):
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39 isDateType = 1
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40
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41 class Interval(BaseType, String):
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42 isIntervalType = 1
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43
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44 class Link(BaseType):
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45 def __init__(self, classname):
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46 """An object designating a Link property that links to
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47 nodes in a specified class."""
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48 self.classname = classname
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49 def __repr__(self):
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50 return '<%s to "%s">'%(self.__class__, self.classname)
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51 isLinkType = 1
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52
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53 class Multilink(BaseType, Link):
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54 """An object designating a Multilink property that links
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55 to nodes in a specified class.
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56 """
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57 isMultilinkType = 1
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58
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59 class DatabaseError(ValueError):
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60 pass
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61
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63 #
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64 # The base Class class
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65 #
0
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66 class Class:
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67 """The handle to a particular class of nodes in a hyperdatabase."""
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68
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69 def __init__(self, db, classname, **properties):
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70 """Create a new class with a given name and property specification.
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71
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72 'classname' must not collide with the name of an existing class,
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73 or a ValueError is raised. The keyword arguments in 'properties'
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74 must map names to property objects, or a TypeError is raised.
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75 """
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76 self.classname = classname
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77 self.properties = properties
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78 self.db = db
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79 self.key = ''
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80
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81 # do the db-related init stuff
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82 db.addclass(self)
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83
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84 # Editing nodes:
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85
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86 def create(self, **propvalues):
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87 """Create a new node of this class and return its id.
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88
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89 The keyword arguments in 'propvalues' map property names to values.
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90
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91 The values of arguments must be acceptable for the types of their
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92 corresponding properties or a TypeError is raised.
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93
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94 If this class has a key property, it must be present and its value
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95 must not collide with other key strings or a ValueError is raised.
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96
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97 Any other properties on this class that are missing from the
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98 'propvalues' dictionary are set to None.
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99
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100 If an id in a link or multilink property does not refer to a valid
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101 node, an IndexError is raised.
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102 """
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103 if self.db.journaltag is None:
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104 raise DatabaseError, 'Database open read-only'
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105 newid = str(self.count() + 1)
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106
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107 # validate propvalues
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108 num_re = re.compile('^\d+$')
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109 for key, value in propvalues.items():
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110 if key == self.key:
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111 try:
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112 self.lookup(value)
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113 except KeyError:
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114 pass
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115 else:
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116 raise ValueError, 'node with key "%s" exists'%value
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117
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118 prop = self.properties[key]
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119
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120 if prop.isLinkType:
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121 value = str(value)
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122 link_class = self.properties[key].classname
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123 if not num_re.match(value):
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124 try:
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125 value = self.db.classes[link_class].lookup(value)
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126 except:
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127 raise ValueError, 'new property "%s": %s not a %s'%(
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128 key, value, self.properties[key].classname)
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129 propvalues[key] = value
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130 if not self.db.hasnode(link_class, value):
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131 raise ValueError, '%s has no node %s'%(link_class, value)
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132
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133 # register the link with the newly linked node
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134 self.db.addjournal(link_class, value, 'link',
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135 (self.classname, newid, key))
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136
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137 elif prop.isMultilinkType:
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138 if type(value) != type([]):
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139 raise TypeError, 'new property "%s" not a list of ids'%key
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140 link_class = self.properties[key].classname
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141 l = []
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142 for entry in map(str, value):
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143 if not num_re.match(entry):
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144 try:
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145 entry = self.db.classes[link_class].lookup(entry)
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146 except:
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147 raise ValueError, 'new property "%s": %s not a %s'%(
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148 key, entry, self.properties[key].classname)
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149 l.append(entry)
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150 value = l
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151 propvalues[key] = value
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152
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153 # handle additions
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154 for id in value:
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155 if not self.db.hasnode(link_class, id):
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156 raise ValueError, '%s has no node %s'%(link_class, id)
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157 # register the link with the newly linked node
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158 self.db.addjournal(link_class, id, 'link',
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159 (self.classname, newid, key))
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160
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161 elif prop.isStringType:
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162 if type(value) != type(''):
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163 raise TypeError, 'new property "%s" not a string'%key
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parents:
diff changeset
164
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
165 elif prop.isDateType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
166 if not hasattr(value, 'isDate'):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
167 raise TypeError, 'new property "%s" not a Date'% key
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
168
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
169 elif prop.isIntervalType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
170 if not hasattr(value, 'isInterval'):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
171 raise TypeError, 'new property "%s" not an Interval'% key
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
172
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
173 for key,prop in self.properties.items():
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
174 if propvalues.has_key(str(key)):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
175 continue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
176 if prop.isMultilinkType:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
177 propvalues[key] = []
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parents:
diff changeset
178 else:
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parents:
diff changeset
179 propvalues[key] = None
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Richard Jones <richard@users.sourceforge.net>
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diff changeset
180
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
181 # done
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
182 self.db.addnode(self.classname, newid, propvalues)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
183 self.db.addjournal(self.classname, newid, 'create', propvalues)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
184 return newid
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parents:
diff changeset
185
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
186 def get(self, nodeid, propname):
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parents:
diff changeset
187 """Get the value of a property on an existing node of this class.
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parents:
diff changeset
188
5e92642cd1f8 Initial import of code
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diff changeset
189 'nodeid' must be the id of an existing node of this class or an
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
190 IndexError is raised. 'propname' must be the name of a property
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
191 of this class or a KeyError is raised.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
192 """
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193 d = self.db.getnode(self.classname, str(nodeid))
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
194 return d[propname]
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parents:
diff changeset
195
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
196 # XXX not in spec
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diff changeset
197 def getnode(self, nodeid):
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parents:
diff changeset
198 ''' Return a convenience wrapper for the node
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
199 '''
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
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200 return Node(self, nodeid)
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parents:
diff changeset
201
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diff changeset
202 def set(self, nodeid, **propvalues):
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parents:
diff changeset
203 """Modify a property on an existing node of this class.
5e92642cd1f8 Initial import of code
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parents:
diff changeset
204
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
205 'nodeid' must be the id of an existing node of this class or an
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
206 IndexError is raised.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
207
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
208 Each key in 'propvalues' must be the name of a property of this
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
209 class or a KeyError is raised.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
210
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
211 All values in 'propvalues' must be acceptable types for their
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
212 corresponding properties or a TypeError is raised.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
213
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
214 If the value of the key property is set, it must not collide with
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
215 other key strings or a ValueError is raised.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
216
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
217 If the value of a Link or Multilink property contains an invalid
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
218 node id, a ValueError is raised.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
219 """
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
220 if not propvalues:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
221 return
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
222 if self.db.journaltag is None:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
223 raise DatabaseError, 'Database open read-only'
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
224 nodeid = str(nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
225 node = self.db.getnode(self.classname, nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
226 if node.has_key(RETIRED_FLAG):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
227 raise IndexError
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
228 num_re = re.compile('^\d+$')
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
229 for key, value in propvalues.items():
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
230 if not node.has_key(key):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
231 raise KeyError, key
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
232
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
233 if key == self.key:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
234 try:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
235 self.lookup(value)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
236 except KeyError:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
237 pass
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
238 else:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
239 raise ValueError, 'node with key "%s" exists'%value
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
240
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
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diff changeset
241 prop = self.properties[key]
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
242
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
243 if prop.isLinkType:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
244 value = str(value)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
245 link_class = self.properties[key].classname
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
246 if not num_re.match(value):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
247 try:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
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diff changeset
248 value = self.db.classes[link_class].lookup(value)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
249 except:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
250 raise ValueError, 'new property "%s": %s not a %s'%(
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
251 key, value, self.properties[key].classname)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
252
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
253 if not self.db.hasnode(link_class, value):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
254 raise ValueError, '%s has no node %s'%(link_class, value)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
255
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
256 # register the unlink with the old linked node
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
257 if node[key] is not None:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
258 self.db.addjournal(link_class, node[key], 'unlink',
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
259 (self.classname, nodeid, key))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
260
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
261 # register the link with the newly linked node
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
262 if value is not None:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
263 self.db.addjournal(link_class, value, 'link',
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
264 (self.classname, nodeid, key))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
265
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
266 elif prop.isMultilinkType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
267 if type(value) != type([]):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
268 raise TypeError, 'new property "%s" not a list of ids'%key
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
269 link_class = self.properties[key].classname
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
270 l = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
271 for entry in map(str, value):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
272 if not num_re.match(entry):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
273 try:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
274 entry = self.db.classes[link_class].lookup(entry)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
275 except:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
276 raise ValueError, 'new property "%s": %s not a %s'%(
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
277 key, entry, self.properties[key].classname)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
278 l.append(entry)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
279 value = l
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
280 propvalues[key] = value
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
281
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
282 #handle removals
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
283 l = node[key]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
284 for id in l[:]:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
285 if id in value:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
286 continue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
287 # register the unlink with the old linked node
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
288 self.db.addjournal(link_class, id, 'unlink',
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
289 (self.classname, nodeid, key))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
290 l.remove(id)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
291
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
292 # handle additions
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
293 for id in value:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
294 if not self.db.hasnode(link_class, id):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
295 raise ValueError, '%s has no node %s'%(link_class, id)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
296 if id in l:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
297 continue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
298 # register the link with the newly linked node
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
299 self.db.addjournal(link_class, id, 'link',
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
300 (self.classname, nodeid, key))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
301 l.append(id)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
302
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
303 elif prop.isStringType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
304 if value is not None and type(value) != type(''):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
305 raise TypeError, 'new property "%s" not a string'%key
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
306
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
307 elif prop.isDateType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
308 if not hasattr(value, 'isDate'):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
309 raise TypeError, 'new property "%s" not a Date'% key
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
310
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
311 elif prop.isIntervalType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
312 if not hasattr(value, 'isInterval'):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
313 raise TypeError, 'new property "%s" not an Interval'% key
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
314
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
315 node[key] = value
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
316
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
317 self.db.setnode(self.classname, nodeid, node)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
318 self.db.addjournal(self.classname, nodeid, 'set', propvalues)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
319
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
320 def retire(self, nodeid):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
321 """Retire a node.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
322
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
323 The properties on the node remain available from the get() method,
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
324 and the node's id is never reused.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
325
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
326 Retired nodes are not returned by the find(), list(), or lookup()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
327 methods, and other nodes may reuse the values of their key properties.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
328 """
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
329 nodeid = str(nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
330 if self.db.journaltag is None:
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parents:
diff changeset
331 raise DatabaseError, 'Database open read-only'
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parents:
diff changeset
332 node = self.db.getnode(self.classname, nodeid)
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parents:
diff changeset
333 node[RETIRED_FLAG] = 1
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
334 self.db.setnode(self.classname, nodeid, node)
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parents:
diff changeset
335 self.db.addjournal(self.classname, nodeid, 'retired', None)
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parents:
diff changeset
336
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
337 def history(self, nodeid):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
338 """Retrieve the journal of edits on a particular node.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
339
5e92642cd1f8 Initial import of code
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parents:
diff changeset
340 'nodeid' must be the id of an existing node of this class or an
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
341 IndexError is raised.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
342
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
343 The returned list contains tuples of the form
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
344
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
345 (date, tag, action, params)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
346
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
347 'date' is a Timestamp object specifying the time of the change and
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
348 'tag' is the journaltag specified when the database was opened.
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parents:
diff changeset
349 """
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parents:
diff changeset
350 return self.db.getjournal(self.classname, nodeid)
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parents:
diff changeset
351
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
352 # Locating nodes:
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parents:
diff changeset
353
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
354 def setkey(self, propname):
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parents:
diff changeset
355 """Select a String property of this class to be the key property.
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parents:
diff changeset
356
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parents:
diff changeset
357 'propname' must be the name of a String property of this class or
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
358 None, or a TypeError is raised. The values of the key property on
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
359 all existing nodes must be unique or a ValueError is raised.
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parents:
diff changeset
360 """
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parents:
diff changeset
361 self.key = propname
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
362
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parents:
diff changeset
363 def getkey(self):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
364 """Return the name of the key property for this class or None."""
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
365 return self.key
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
366
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parents:
diff changeset
367 # TODO: set up a separate index db file for this? profile?
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parents:
diff changeset
368 def lookup(self, keyvalue):
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parents:
diff changeset
369 """Locate a particular node by its key property and return its id.
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parents:
diff changeset
370
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
371 If this class has no key property, a TypeError is raised. If the
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
372 'keyvalue' matches one of the values for the key property among
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
373 the nodes in this class, the matching node's id is returned;
5e92642cd1f8 Initial import of code
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parents:
diff changeset
374 otherwise a KeyError is raised.
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parents:
diff changeset
375 """
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
376 cldb = self.db.getclassdb(self.classname)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
377 for nodeid in self.db.getnodeids(self.classname, cldb):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
378 node = self.db.getnode(self.classname, nodeid, cldb)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
379 if node.has_key(RETIRED_FLAG):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
380 continue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
381 if node[self.key] == keyvalue:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
382 return nodeid
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
383 cldb.close()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
384 raise KeyError, keyvalue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
385
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
386 # XXX: change from spec - allows multiple props to match
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
387 def find(self, **propspec):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
388 """Get the ids of nodes in this class which link to a given node.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
389
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
390 'propspec' consists of keyword args propname=nodeid
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
391 'propname' must be the name of a property in this class, or a
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
392 KeyError is raised. That property must be a Link or Multilink
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
393 property, or a TypeError is raised.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
394
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
395 'nodeid' must be the id of an existing node in the class linked
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
396 to by the given property, or an IndexError is raised.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
397 """
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
398 propspec = propspec.items()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
399 for propname, nodeid in propspec:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
400 nodeid = str(nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
401 # check the prop is OK
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
402 prop = self.properties[propname]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
403 if not prop.isLinkType and not prop.isMultilinkType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
404 raise TypeError, "'%s' not a Link/Multilink property"%propname
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
405 if not self.db.hasnode(prop.classname, nodeid):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
406 raise ValueError, '%s has no node %s'%(link_class, nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
407
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
408 # ok, now do the find
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
409 cldb = self.db.getclassdb(self.classname)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
410 l = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
411 for id in self.db.getnodeids(self.classname, cldb):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
412 node = self.db.getnode(self.classname, id, cldb)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
413 if node.has_key(RETIRED_FLAG):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
414 continue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
415 for propname, nodeid in propspec:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
416 nodeid = str(nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
417 property = node[propname]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
418 if prop.isLinkType and nodeid == property:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
419 l.append(id)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
420 elif prop.isMultilinkType and nodeid in property:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
421 l.append(id)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
422 cldb.close()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
423 return l
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
424
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
425 def stringFind(self, **requirements):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
426 """Locate a particular node by matching a set of its String properties.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
427
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
428 If the property is not a String property, a TypeError is raised.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
429
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
430 The return is a list of the id of all nodes that match.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
431 """
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
432 for propname in requirements.keys():
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
433 prop = self.properties[propname]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
434 if not prop.isStringType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
435 raise TypeError, "'%s' not a String property"%propname
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
436 l = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
437 cldb = self.db.getclassdb(self.classname)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
438 for nodeid in self.db.getnodeids(self.classname, cldb):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
439 node = self.db.getnode(self.classname, nodeid, cldb)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
440 if node.has_key(RETIRED_FLAG):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
441 continue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
442 for key, value in requirements.items():
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
443 if node[key] != value:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
444 break
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
445 else:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
446 l.append(nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
447 cldb.close()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
448 return l
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
449
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
450 def list(self):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
451 """Return a list of the ids of the active nodes in this class."""
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
452 l = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
453 cn = self.classname
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
454 cldb = self.db.getclassdb(cn)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
455 for nodeid in self.db.getnodeids(cn, cldb):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
456 node = self.db.getnode(cn, nodeid, cldb)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
457 if node.has_key(RETIRED_FLAG):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
458 continue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
459 l.append(nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
460 l.sort()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
461 cldb.close()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
462 return l
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
463
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
464 # XXX not in spec
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
465 def filter(self, filterspec, sort, group, num_re = re.compile('^\d+$')):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
466 ''' Return a list of the ids of the active nodes in this class that
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
467 match the 'filter' spec, sorted by the group spec and then the
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
468 sort spec
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
469 '''
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
470 cn = self.classname
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
471
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
472 # optimise filterspec
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
473 l = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
474 props = self.getprops()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
475 for k, v in filterspec.items():
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
476 propclass = props[k]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
477 if propclass.isLinkType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
478 if type(v) is not type([]):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
479 v = [v]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
480 # replace key values with node ids
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
481 u = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
482 link_class = self.db.classes[propclass.classname]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
483 for entry in v:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
484 if not num_re.match(entry):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
485 try:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
486 entry = link_class.lookup(entry)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
487 except:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
488 raise ValueError, 'new property "%s": %s not a %s'%(
19
a5eb90ae8903 Fixed a bug in the filter
Richard Jones <richard@users.sourceforge.net>
parents: 18
diff changeset
489 k, entry, self.properties[k].classname)
0
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
490 u.append(entry)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
491
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
492 l.append((0, k, u))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
493 elif propclass.isMultilinkType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
494 if type(v) is not type([]):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
495 v = [v]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
496 # replace key values with node ids
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
497 u = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
498 link_class = self.db.classes[propclass.classname]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
499 for entry in v:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
500 if not num_re.match(entry):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
501 try:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
502 entry = link_class.lookup(entry)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
503 except:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
504 raise ValueError, 'new property "%s": %s not a %s'%(
19
a5eb90ae8903 Fixed a bug in the filter
Richard Jones <richard@users.sourceforge.net>
parents: 18
diff changeset
505 k, entry, self.properties[k].classname)
0
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
506 u.append(entry)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
507 l.append((1, k, u))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
508 elif propclass.isStringType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
509 v = v[0]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
510 if '*' in v or '?' in v:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
511 # simple glob searching
3
97559f7bae2e Bug fixes:
Richard Jones <richard@users.sourceforge.net>
parents: 0
diff changeset
512 v = v.replace('?', '.')
97559f7bae2e Bug fixes:
Richard Jones <richard@users.sourceforge.net>
parents: 0
diff changeset
513 v = v.replace('*', '.*?')
97559f7bae2e Bug fixes:
Richard Jones <richard@users.sourceforge.net>
parents: 0
diff changeset
514 v = re.compile(v)
0
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
515 l.append((2, k, v))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
516 elif v[0] == '^':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
517 # start-anchored
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
518 if v[-1] == '$':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
519 # _and_ end-anchored
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
520 l.append((6, k, v[1:-1]))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
521 l.append((3, k, v[1:]))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
522 elif v[-1] == '$':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
523 # end-anchored
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
524 l.append((4, k, v[:-1]))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
525 else:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
526 # substring
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
527 l.append((5, k, v))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
528 else:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
529 l.append((6, k, v))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
530 filterspec = l
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
531
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
532 # now, find all the nodes that are active and pass filtering
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
533 l = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
534 cldb = self.db.getclassdb(cn)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
535 for nodeid in self.db.getnodeids(cn, cldb):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
536 node = self.db.getnode(cn, nodeid, cldb)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
537 if node.has_key(RETIRED_FLAG):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
538 continue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
539 # apply filter
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
540 for t, k, v in filterspec:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
541 if t == 0 and node[k] not in v:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
542 # link - if this node'd property doesn't appear in the
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
543 # filterspec's nodeid list, skip it
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
544 break
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
545 elif t == 1:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
546 # multilink - if any of the nodeids required by the
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
547 # filterspec aren't in this node's property, then skip
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
548 # it
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
549 for value in v:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
550 if value not in node[k]:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
551 break
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
552 else:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
553 continue
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
554 break
3
97559f7bae2e Bug fixes:
Richard Jones <richard@users.sourceforge.net>
parents: 0
diff changeset
555 elif t == 2 and not v.search(node[k]):
0
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
556 # RE search
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
557 break
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
558 elif t == 3 and node[k][:len(v)] != v:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
559 # start anchored
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
560 break
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
561 elif t == 4 and node[k][-len(v):] != v:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
562 # end anchored
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
563 break
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
564 elif t == 5 and node[k].find(v) == -1:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
565 # substring search
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
566 break
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
567 elif t == 6 and node[k] != v:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
568 # straight value comparison for the other types
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
569 break
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
570 else:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
571 l.append((nodeid, node))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
572 l.sort()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
573 cldb.close()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
574
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
575 # optimise sort
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
576 m = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
577 for entry in sort:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
578 if entry[0] != '-':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
579 m.append(('+', entry))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
580 else:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
581 m.append((entry[0], entry[1:]))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
582 sort = m
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
583
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
584 # optimise group
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
585 m = []
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
586 for entry in group:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
587 if entry[0] != '-':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
588 m.append(('+', entry))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
589 else:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
590 m.append((entry[0], entry[1:]))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
591 group = m
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
592
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
593 # now, sort the result
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
594 def sortfun(a, b, sort=sort, group=group, properties=self.getprops(),
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
595 db = self.db, cl=self):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
596 a_id, an = a
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
597 b_id, bn = b
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
598 for list in group, sort:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
599 for dir, prop in list:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
600 # handle the properties that might be "faked"
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
601 if not an.has_key(prop):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
602 an[prop] = cl.get(a_id, prop)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
603 av = an[prop]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
604 if not bn.has_key(prop):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
605 bn[prop] = cl.get(b_id, prop)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
606 bv = bn[prop]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
607
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
608 # sorting is class-specific
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
609 propclass = properties[prop]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
610
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
611 # String and Date values are sorted in the natural way
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
612 if propclass.isStringType:
3
97559f7bae2e Bug fixes:
Richard Jones <richard@users.sourceforge.net>
parents: 0
diff changeset
613 # clean up the strings
97559f7bae2e Bug fixes:
Richard Jones <richard@users.sourceforge.net>
parents: 0
diff changeset
614 if av and av[0] in string.uppercase:
0
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
615 av = an[prop] = av.lower()
3
97559f7bae2e Bug fixes:
Richard Jones <richard@users.sourceforge.net>
parents: 0
diff changeset
616 if bv and bv[0] in string.uppercase:
0
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
617 bv = bn[prop] = bv.lower()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
618 if propclass.isStringType or propclass.isDateType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
619 if dir == '+':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
620 r = cmp(av, bv)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
621 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
622 elif dir == '-':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
623 r = cmp(bv, av)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
624 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
625
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
626 # Link properties are sorted according to the value of
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
627 # the "order" property on the linked nodes if it is
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
628 # present; or otherwise on the key string of the linked
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
629 # nodes; or finally on the node ids.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
630 elif propclass.isLinkType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
631 link = db.classes[propclass.classname]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
632 if link.getprops().has_key('order'):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
633 if dir == '+':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
634 r = cmp(link.get(av, 'order'),
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
635 link.get(bv, 'order'))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
636 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
637 elif dir == '-':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
638 r = cmp(link.get(bv, 'order'),
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
639 link.get(av, 'order'))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
640 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
641 elif link.getkey():
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
642 key = link.getkey()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
643 if dir == '+':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
644 r = cmp(link.get(av, key), link.get(bv, key))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
645 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
646 elif dir == '-':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
647 r = cmp(link.get(bv, key), link.get(av, key))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
648 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
649 else:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
650 if dir == '+':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
651 r = cmp(av, bv)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
652 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
653 elif dir == '-':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
654 r = cmp(bv, av)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
655 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
656
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
657 # Multilink properties are sorted according to how many
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
658 # links are present.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
659 elif propclass.isMultilinkType:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
660 if dir == '+':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
661 r = cmp(len(av), len(bv))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
662 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
663 elif dir == '-':
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
664 r = cmp(len(bv), len(av))
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
665 if r != 0: return r
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
666 return cmp(a[0], b[0])
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
667 l.sort(sortfun)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
668 return [i[0] for i in l]
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
669
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
670 def count(self):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
671 """Get the number of nodes in this class.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
672
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
673 If the returned integer is 'numnodes', the ids of all the nodes
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
674 in this class run from 1 to numnodes, and numnodes+1 will be the
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
675 id of the next node to be created in this class.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
676 """
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
677 return self.db.countnodes(self.classname)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
678
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
679 # Manipulating properties:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
680
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
681 def getprops(self):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
682 """Return a dictionary mapping property names to property objects."""
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
683 return self.properties
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
684
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
685 def addprop(self, **properties):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
686 """Add properties to this class.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
687
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
688 The keyword arguments in 'properties' must map names to property
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
689 objects, or a TypeError is raised. None of the keys in 'properties'
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
690 may collide with the names of existing properties, or a ValueError
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
691 is raised before any properties have been added.
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
692 """
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
693 for key in properties.keys():
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
694 if self.properties.has_key(key):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
695 raise ValueError, key
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
696 self.properties.update(properties)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
697
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
698
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
699 # XXX not in spec
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
700 class Node:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
701 ''' A convenience wrapper for the given node
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
702 '''
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
703 def __init__(self, cl, nodeid):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
704 self.__dict__['cl'] = cl
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
705 self.__dict__['nodeid'] = nodeid
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
706 def keys(self):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
707 return self.cl.getprops().keys()
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
708 def has_key(self, name):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
709 return self.cl.getprops().has_key(name)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
710 def __getattr__(self, name):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
711 if self.__dict__.has_key(name):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
712 return self.__dict__['name']
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
713 try:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
714 return self.cl.get(self.nodeid, name)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
715 except KeyError, value:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
716 raise AttributeError, str(value)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
717 def __getitem__(self, name):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
718 return self.cl.get(self.nodeid, name)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
719 def __setattr__(self, name, value):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
720 try:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
721 return self.cl.set(self.nodeid, **{name: value})
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
722 except KeyError, value:
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
723 raise AttributeError, str(value)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
724 def __setitem__(self, name, value):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
725 self.cl.set(self.nodeid, **{name: value})
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
726 def history(self):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
727 return self.cl.history(self.nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
728 def retire(self):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
729 return self.cl.retire(self.nodeid)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
730
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
731
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
732 def Choice(name, *options):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
733 cl = Class(db, name, name=hyperdb.String(), order=hyperdb.String())
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
734 for i in range(len(options)):
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
735 cl.create(name=option[i], order=i)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
736 return hyperdb.Link(name)
5e92642cd1f8 Initial import of code
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
737
5
72a0ba086b3e Added CVS keywords $Id$ and $Log$ to all python files.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 3
diff changeset
738 #
72a0ba086b3e Added CVS keywords $Id$ and $Log$ to all python files.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 3
diff changeset
739 # $Log: not supported by cvs2svn $
19
a5eb90ae8903 Fixed a bug in the filter
Richard Jones <richard@users.sourceforge.net>
parents: 18
diff changeset
740 # Revision 1.5 2001/07/20 07:35:55 richard
a5eb90ae8903 Fixed a bug in the filter
Richard Jones <richard@users.sourceforge.net>
parents: 18
diff changeset
741 # largish changes as a start of splitting off bits and pieces to allow more
a5eb90ae8903 Fixed a bug in the filter
Richard Jones <richard@users.sourceforge.net>
parents: 18
diff changeset
742 # flexible installation / database back-ends
a5eb90ae8903 Fixed a bug in the filter
Richard Jones <richard@users.sourceforge.net>
parents: 18
diff changeset
743 #
5
72a0ba086b3e Added CVS keywords $Id$ and $Log$ to all python files.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 3
diff changeset
744
Roundup Issue Tracker: http://roundup-tracker.org/