Changeset 285

Timestamp:

06/08/07 12:48:33 (2 years ago)

Author:

matt

Message:

Added CallableValidator?.

Files:

• trunk/ChangeLog (modified) (1 diff)
• trunk/formal/validation.py (modified) (2 diffs)
• trunk/setup.py (modified) (1 diff)

trunk/ChangeLog

@@ +1 @@
+2007-06-08  Matt Goodall <matt@pollenation.net>
+
+        Added a CallableValidator that delegates the validation to some callable
+        object. This makes typical validators much easier to write.
+
-2007-06-06  Matt Goodall <matt@pollenation.net>
-

trunk/formal/validation.py

@@ -130 +130 @@
-        if self.regex.match(value) is None:
-            raise FieldValidationError, 'Invalid format'
+
+
+
+class CallableValidator(object):
+    """
+    A validator that delegates the validation of non-None values to a callable
+    with the same signature as IValidator.validate.
+    """
+
+    implements(iformal.IValidator)
+
+
+    def __init__(self, callable):
+        self.callable = callable
+
+
+    def validate(self, field, value):
+        if value is None:
+            return
+        self.callable(field, value)
+        
-            
-    
@@ -135 +156 @@
-    'FormError', 'FieldError', 'FieldValidationError', 'FieldRequiredError',
-    'RequiredValidator', 'LengthValidator', 'RangeValidator', 'PatternValidator',
+    'CallableValidator',
-    ]
-

trunk/setup.py

@@ -3 +3 @@
-setup(
-    name='formal',
-3.2
+4
-    description='HTML forms framework for Nevow',
-    author='Matt Goodall',