- Feature: Added new field "promptChoiceField" to the "All Widgets" demo

  demonstrating the prompt message of the select widget.

CHANGES.txt

@@ -5,6 +5,9 @@ CHANGES
 Version 1.2.0 (??/??/2007)
 -------------------------
 
+- Feature: Added new field "promptChoiceField" to the "All Widgets" demo
+  demonstrating the prompt message of the select widget.
+
 - Feature: Increased the integer default value of "All Widgets" demo to show
   off our new internationalized converter.
 

src/z3c/formdemo/widgets/browser.py

@@ -46,6 +46,8 @@ class AllFields(persistent.Persistent):
     choiceField = FieldProperty(interfaces.IAllFields['choiceField'])
     optionalChoiceField = FieldProperty(
         interfaces.IAllFields['optionalChoiceField'])
+    promptChoiceField = FieldProperty(
+        interfaces.IAllFields['promptChoiceField'])
     dateField = FieldProperty(interfaces.IAllFields['dateField'])
     datetimeField = FieldProperty(interfaces.IAllFields['datetimeField'])
     decimalField = FieldProperty(interfaces.IAllFields['decimalField'])
@@ -81,8 +83,12 @@ def getContent(self):
         return interfaces.IAllFields(self.context)
 
     def updateWidgets(self):
-        super(AllFieldsForm, self).updateWidgets()
+        self.widgets = zope.component.getMultiAdapter(
+            (self, self.request, self.getContent()), IWidgets)
+        self.widgets.update()
         self.widgets['hiddenField'].mode = HIDDEN_MODE
+        self.widgets['promptChoiceField'].prompt = True
+        self.widgets['promptChoiceField'].update()
 
     def __call__(self):
         self.update()

src/z3c/formdemo/widgets/interfaces.py

@@ -80,6 +80,12 @@ class IAllFields(zope.interface.Interface):
         vocabulary=vocab,
         required=False)
 
+    promptChoiceField = zope.schema.Choice(
+        title=u'Choice (Explicit Prompt)',
+        description=u'This is a choice field with an explicit prompt.',
+        vocabulary=vocab,
+        required=False)
+
     dateField = zope.schema.Date(
         title=u'Date',
         description=u'This is a Date field.',