Get the 'sub_form' attribute dynamically from the template field.

Before that the text version of the sub_form was stored on the proxy field instance.
If you want to use list datetime fields, I'll add a note on UpgradeNote wiki page.



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@17537 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/ProxyField.py

@@ -368,6 +368,11 @@ class ProxyField(ZMIField):
       field = template_field
     return template_field
 
+  def _aq_dynamic(self, name):
+    if name == 'sub_form':
+      return self.getTemplateField().sub_form
+    return None
+
   security.declareProtected('Access contents information', 
                             'is_delegated')
   def is_delegated(self, id):

product/ERP5Form/tests/testFields.py

@@ -50,6 +50,7 @@ Globals.get_request = get_request
 from Testing import ZopeTestCase
 ZopeTestCase.installProduct('ERP5Form')
 
+from Acquisition import aq_base
 from Products.Formulator.StandardFields import FloatField
 from Products.Formulator.StandardFields import StringField
 from Products.Formulator.StandardFields import DateTimeField
@@ -251,6 +252,24 @@ class TestProxyField(unittest.TestCase):
     self.assertEquals(other_field, proxy_field.getTemplateField())
     self.assertEquals('Other', proxy_field.get_value('title'))
 
+  def test_proxy_to_date_time_field(self):
+    # date time fields are specific, because they use a 'sub_form', we must
+    # make sure this works as expected
+    original_field = self.addField(self.container.Base_viewProxyFieldLibrary,
+                                   'my_date', 'Date', 'DateTimeField')
+    original_field.manage_edit_xmlrpc(dict(required=0))
+    proxy_field = self.addField(self.container.Base_view,
+                                'my_date', 'Date', 'ProxyField')
+    proxy_field.manage_edit_xmlrpc(dict(form_id='Base_viewProxyFieldLibrary',
+                                        field_id='my_date',))
+    self.assertTrue(hasattr(proxy_field, 'sub_form'))
+    self.assertTrue(aq_base(proxy_field.sub_form) is
+                      aq_base(original_field.sub_form))
+    # we can render
+    proxy_field.render()
+    # and validate
+    self.container.Base_view.validate_all_to_request(dict())
+    
 
 class TestFieldValueCache(unittest.TestCase):
   """Tests field value caching system