Move the registration of the captcha validator from validator.py to the (demo) form. This is the only way to allow the creator of a form to register the captcha validator for a form without touching the p.f.c. code. This is somehow ugly. Maybe there is a more elegant way to do this?!

svn path=/plone.formwidget.captcha/trunk/; revision=28729

plone/formwidget/captcha/configure.zcml

@@ -40,11 +40,6 @@
         provides="Products.GenericSetup.interfaces.EXTENSION"
         />
 
-    <!-- Validators -->
-    <adapter
-        factory=".validator.CaptchaValidator"
-        />
-
     <!--
     example:
     http://yourplonesite/@@captcha_form

plone/formwidget/captcha/demo/configure.zcml

@@ -14,4 +14,9 @@
         provides=".form.ICaptchaForm"
         factory=".form.Captcha" />
 
+    <!-- Validators -->
+    <adapter
+        factory=".form.CaptchaValidator"
+        />
+
 </configure>

plone/formwidget/captcha/demo/form.py

@@ -2,9 +2,10 @@ from Acquisition import aq_inner
 
 from zope import interface
 from zope import schema
-from zope.component import getMultiAdapter
 
-from z3c.form import form, field, button
+from zope.component import getMultiAdapter, provideAdapter
+
+from z3c.form import form, field, button, validator
 
 from plone.z3cform.layout import wrap_form
 
@@ -43,4 +44,7 @@ class BaseForm(form.Form):
                 print data['subject']
         return
 
-CaptchaForm = wrap_form(BaseForm)
+CaptchaForm = wrap_form(BaseForm)
+
+# Register Captcha Validator for the captcha field in the ICaptchaForm
+validator.WidgetValidatorDiscriminators(CaptchaValidator, field=ICaptchaForm['captcha'])

plone/formwidget/captcha/validator.py

@@ -23,8 +23,4 @@ class CaptchaValidator(validator.SimpleFieldValidator):
                 raise WrongCaptchaCode
             else:
                 return True
-        raise WrongCaptchaCode
-
-from plone.formwidget.captcha.demo.form import ICaptchaForm
-validator.WidgetValidatorDiscriminators(CaptchaValidator, field=ICaptchaForm['captcha'])
-provideAdapter(CaptchaValidator)
+        raise WrongCaptchaCode