Formulator: prepare DateTimeField's sub_form dynamically.

otherwise TALES in input_style does not work and changes in the original proxy field will not be reflected.

product/Formulator/Widget.py

@@ -1455,10 +1455,6 @@ class DateTimeWidget(Widget):
   def render(self, field, key, value, REQUEST, render_prefix=None):
     use_ampm = field.get_value('ampm_time_style')
     use_timezone = field.get_value('timezone_style')
-    # FIXME: backwards compatibility hack:
-    if not hasattr(field, 'sub_form'):
-      from StandardFields import create_datetime_text_sub_form
-      field.sub_form = create_datetime_text_sub_form()
 
     # Is it still usefull to test the None value,
     # as DateTimeField should be considerer as the other field

product/Formulator/tests/testForm.py

 # -*- coding: utf-8 -*-
 import unittest, re
+from DateTime import DateTime
 import Zope2
 
 # XXX this does not work for zope2.x if x < 3
@@ -120,14 +121,10 @@ class FormTestCase(unittest.TestCase):
         self.form.manage_addProduct['Formulator']\
                  .manage_addField('date_time','Test Field','DateTimeField')
         field = self.form.date_time
-        sub_form = field.sub_form
-        if sub_form.has_field('timezone'):
-          del sub_form.fields['timezone']
-        #now timezone is not presented
-        self.assertFalse(self.form.date_time.sub_form.has_field('timezone'))
+        field._edit({'timezone_style': 0})
+        self.assertFalse('<select size="1" name="subfield_field_date_time_timezone" >' in field.render())
         field._edit({'timezone_style': 1})
-        #test if timezone's presented
-        self.assertTrue(self.form.date_time.sub_form.has_field('timezone'))
+        self.assertTrue('<select size="1" name="subfield_field_date_time_timezone" >' in field.render())
 
 
     def test_datetime_css_class_rendering(self):
@@ -177,6 +174,22 @@ class FormTestCase(unittest.TestCase):
         self.assertEqual(0, len(css_matches))
 
 
+    def test_datetime_number_style(self):
+        # test that a bug is fixed, which causing the css_class value
+        # not to be rendered
+        self.form.manage_addProduct['Formulator']\
+                 .manage_addField('date_time','Test Field','DateTimeField')
+        field = self.form.date_time
+        field._edit({'input_style': 'number'})
+        self.assertTrue('<input name="subfield_field_date_time_year" value="" maxlength="4" type="number" size="4" min="0" max="9999" />' in field.render())
+        field._edit({'start_datetime': DateTime('1900/01/01'), 'end_datetime': None})
+        self.assertTrue('<input name="subfield_field_date_time_year" value="" maxlength="4" type="number" size="4" min="1900" max="9999" />' in field.render())
+        field._edit({'start_datetime': None, 'end_datetime': DateTime('2099/12/31')})
+        self.assertTrue('<input name="subfield_field_date_time_year" value="" maxlength="4" type="number" size="4" min="0" max="2099" />' in field.render())
+        field._edit({'start_datetime': DateTime('1900/01/01'), 'end_datetime': DateTime('2099/12/31')})
+        self.assertTrue('<input name="subfield_field_date_time_year" value="" maxlength="4" type="number" size="4" min="1900" max="2099" />' in field.render())
+
+
 def test_suite():
     suite = unittest.TestSuite()