Mercurial > p > roundup > code
comparison roundup/hyperdb.py @ 5175:e1e40674a0bc
Implement double-precision Number
.. as an option to the 'Number' property.
| author | Ralf Schlatterbeck <rsc@runtux.com> |
|---|---|
| date | Mon, 12 Dec 2016 13:53:47 +0100 |
| parents | 7b74a5addfea |
| children | 462b0f76fce8 882dfa723df5 |
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| 5174:a76fbb9f5535 | 5175:e1e40674a0bc |
|---|---|
| 291 value = value.lower() in ('checked', 'yes', 'true', 'on', '1') | 291 value = value.lower() in ('checked', 'yes', 'true', 'on', '1') |
| 292 return value | 292 return value |
| 293 | 293 |
| 294 class Number(_Type): | 294 class Number(_Type): |
| 295 """An object designating a numeric property""" | 295 """An object designating a numeric property""" |
| 296 def __init__(self, use_double = False, **kw): | |
| 297 """ The value use_double tells the database backend to use a | |
| 298 floating-point format with more precision than the default. | |
| 299 Usually implemented by type 'double precision' in the sql | |
| 300 backend. The default is to use single-precision float (aka | |
| 301 'real') in the db. Note that sqlite already uses 8-byte for | |
| 302 floating point numbers. | |
| 303 """ | |
| 304 self.use_double = use_double | |
| 305 _Type.__init__ (self, **kw) | |
| 306 super(Number, self).__init__(**kw) | |
| 296 def from_raw(self, value, **kw): | 307 def from_raw(self, value, **kw): |
| 297 value = value.strip() | 308 value = value.strip() |
| 298 try: | 309 try: |
| 299 value = float(value) | 310 value = float(value) |
| 300 except ValueError: | 311 except ValueError: |