Author: ianb
Date: 2008-05-13 15:37:19 -0600 (Tue, 13 May 2008)
New Revision: 3416
Modified:
FormEncode/trunk/docs/news.txt
FormEncode/trunk/formencode/validators.py
Log:
patch from Shannon JJ Behrens, adding min/max support to Int and Number
Modified: FormEncode/trunk/docs/news.txt
===================================================================
--- FormEncode/trunk/docs/news.txt 2008-05-13 21:35:50 UTC (rev 3415)
+++ FormEncode/trunk/docs/news.txt 2008-05-13 21:37:19 UTC (rev 3416)
@@ -18,6 +18,9 @@
* In ``formencode.htmlfill``, non-string values are compared usefully
(e.g., a select box with integer values).
+* The validators ``Int`` and ``Number`` both take min/max arguments
+ (from Shannon Behrens).
+
1.0.1
-----
Modified: FormEncode/trunk/formencode/validators.py
===================================================================
--- FormEncode/trunk/formencode/validators.py 2008-05-13 21:35:50 UTC (rev
3415)
+++ FormEncode/trunk/formencode/validators.py 2008-05-13 21:37:19 UTC (rev
3416)
@@ -909,11 +909,41 @@
def empty_value(self, value):
return False
-class Int(FancyValidator):
+class RangeValidator(FancyValidator):
+ """This is an abstract base class for Int and Number.
+
+ It verifies that a value is within range. It accepts min and max
+ values in the constructor.
+
+ (Since this is an abstract base class, the tests are in Int and
+ Number.)
+
"""
- Convert a value to an integer.
+ messages = {
+ 'tooLow': _("Please enter a number that is %(min)s or greater"),
+ 'tooHigh': _("Please enter a number that is %(max)s or smaller"),
+ }
+
+ min = None
+ max = None
+
+ def validate_python(self, value, state):
+ if self.min is not None:
+ if value < self.min:
+ msg = self.message("tooLow", state, min=self.min)
+ raise Invalid(msg, value, state)
+ if self.max is not None:
+ if value > self.max:
+ msg = self.message("tooHigh", state, max=self.max)
+ raise Invalid(msg, value, state)
+
+
+class Int(RangeValidator):
+
+ """Convert a value to an integer.
+
Example::
>>> Int.to_python('10')
@@ -922,24 +952,19 @@
Traceback (most recent call last):
...
Invalid: Please enter an integer value
+ >>> Int(min=5).to_python('6')
+ 6
+ >>> Int(max=10).to_python('11')
+ Traceback (most recent call last):
+ ...
+ Invalid: Please enter a number that is 10 or smaller
+
"""
messages = {
- 'integer': _("Please enter an integer value"),
- 'tooLow': _("Please enter an integer above %(min)i"),
- 'tooHigh': _("Please enter an integer below %(max)i"),
- }
+ 'integer': _("Please enter an integer value")
+ }
- min = None
- max = None
-
- def __initargs__(self, args):
- if self.min != None:
- self.min = int(self.min)
- if self.max != None:
- self.max = int(self.max)
-
-
def _to_python(self, value, state):
try:
return int(value)
@@ -947,24 +972,17 @@
raise Invalid(self.message('integer', state),
value, state)
- def validate_python(self, value, state):
- if self.min != None and value < self.min:
- msg = self.message("tooLow", state, min=self.min)
- raise Invalid(msg, value, state)
- if self.max != None and value > self.max:
- msg = self.message("tooHigh", state, max=self.max)
- raise Invalid(msg, value, state)
-
_from_python = _to_python
-class Number(FancyValidator):
- """
- Convert a value to a float or integer. Tries to convert it to
- an integer if no information is lost.
+class Number(RangeValidator):
- ::
+ """Convert a value to a float or integer.
+ Tries to convert it to an integer if no information is lost.
+
+ Example::
+
>>> Number.to_python('10')
10
>>> Number.to_python('10.5')
@@ -973,13 +991,19 @@
Traceback (most recent call last):
...
Invalid: Please enter a number
+ >>> Number(min=5).to_python('6.5')
+ 6.5
+ >>> Number(max=10.5).to_python('11.5')
+ Traceback (most recent call last):
+ ...
+ Invalid: Please enter a number that is 10.5 or smaller
"""
-
+
messages = {
- 'number': _("Please enter a number"),
- }
-
+ 'number': _("Please enter a number")
+ }
+
def _to_python(self, value, state):
try:
value = float(value)
@@ -990,6 +1014,7 @@
raise Invalid(self.message('number', state),
value, state)
+
class String(FancyValidator):
"""
Converts things to string, but treats empty things as the empty
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