I tried to implement what I want, please review (this
example works for
me):
patch:
Index: fields.py
============================================================
=======
--- fields.py (revision 4253)
+++ fields.py (working copy)
 -33,7
+33,7
# Tracks each time a Field instance is created. Used to
retain
order.
creation_counter = 0
- def __init__(self, required=True, widget=None,
label=None,
initial=None):
+ def __init__(self, required=True, widget=None,
label=None,
initial=None, validator_list=[]):
# required -- Boolean that specifies whether the
field is
required.
# True by default.
# widget -- A Widget class, or instance of a Widget
class,
that should be
-72,6
+72,9
"""
if self.required and value in EMPTY_VALUES:
raise ValidationError(gettext(u'This field is
required.'))
+ for validator in self.validator_list:
+ validator(value)
+
return value
def widget_attrs(self, widget):
-83,8
+86,8
return {}
class CharField(Field):
- def __init__(self, max_length=None, min_length=None,
required=True, widget=None, label=None, initial=None):
- self.max_length, self.min_length = max_length,
min_length
+ def __init__(self, max_length=None, min_length=None,
required=True, widget=None, label=None, initial=None,
validator_list=[]):
+ self.max_length, self.min_length,
self.validator_list =
max_length, min_length, validator_list
Field.__init__(self, required, widget, label,
initial)
def clean(self, value):
usage:
#-----------------------------------------------------------
--------------------
def isSomething( value ):
if( value != 'something' ):
raise ValidationError, gettext( "not
something!." )
#-----------------------------------------------------------
--------------------
class AddChangeProductForm( forms.Form ):
'''
form used for creating or renaming a product
'''
name = forms.CharField( validator_list = [ isSomething ]
)
#-----------------------------------------------------------
--------------------
p.s. I'm relatevely new to python, so let your critics be
constructive.
thanks.
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