Revert "datetime widget : allow definition of a default timezone"

This reverts commit 9668c1a1.

The problem of timezone is more complex.
Since this commit have a side effect of saving and displaying a different date
when Zope runs on a different timezone that what is configured on the field, it
is safer to revert this commit immediately.

product/Formulator/StandardFields.py

@@ -184,6 +184,10 @@ class DateTimeField(ZMIField):
     if REQUEST.form['subfield_%s_%s' % (key, 'year')]:
       return None
 
+gmt_timezones =  [('GMT%s' %zone, 'GMT%s' %zone,) for zone in range(-12, 0)]\
+                  + [('GMT', 'GMT',),] \
+                  + [('GMT+%s' %zone, 'GMT+%s' %zone,) for zone in range(1, 13)]
+
 def create_datetime_text_sub_form():
   sub_form = BasicForm()
 
@@ -234,7 +238,7 @@ def create_datetime_text_sub_form():
                         title = "Timezone",
                         required = 0,
                         default = 'GMT',
-                        items = Widget.gmt_timezones,
+                        items = gmt_timezones,
                         size = 1)
   sub_form.add_fields([hour, minute, ampm, timezone], "time")
   return sub_form
@@ -292,7 +296,7 @@ def create_datetime_list_sub_form():
                         title = "Timezone",
                         required = 0,
                         default = 'GMT',
-                        items = Widget.gmt_timezones,
+                        items = gmt_timezones,
                         size = 1)
   sub_form.add_group("time")
 

product/Formulator/Widget.py

@@ -1280,10 +1280,6 @@ class MultiCheckBoxWidget(MultiItemsWidget):
 
 MultiCheckBoxWidgetInstance = MultiCheckBoxWidget()
 
-gmt_timezones =  [('GMT%s' %zone, 'GMT%s' %zone,) for zone in range(-12, 0)]\
-                  + [('GMT', 'GMT',),] \
-                  + [('GMT+%s' %zone, 'GMT+%s' %zone,) for zone in range(1, 13)]
-
 class DateTimeWidget(Widget):
   """
     Added support for key in every call to render_sub_field
@@ -1365,15 +1361,6 @@ class DateTimeWidget(Widget):
                                         ("list", "list")],
                                   size=1)
 
-  default_timezone = fields.ListField('default_timezone',
-                                  title="Default Timezone",
-                                  description=(
-      "The default timezone display when inputing a new date"),
-                                  default="GMT",
-                                  items=gmt_timezones,
-                                  required=1,
-                                  size=1)
-
   input_order = fields.ListField('input_order',
                                   title="Input order",
                                   description=(
@@ -1401,8 +1388,8 @@ class DateTimeWidget(Widget):
   property_names = Widget.property_names +\
                     ['default_now', 'date_separator', 'time_separator',
                      'input_style', 'input_order', 'date_only',
-                     'ampm_time_style', 'timezone_style', 'default_timezone',
-                     'hide_day', 'hidden_day_is_last_day']
+                     'ampm_time_style', 'timezone_style', 'hide_day',
+                     'hidden_day_is_last_day']
 
   def getInputOrder(self, field):
     input_order = field.get_value('input_order')
@@ -1460,7 +1447,7 @@ class DateTimeWidget(Widget):
     hour   = None
     minute = None
     ampm   = None
-    timezone = field.get_value("default_timezone")
+    timezone = None
     if isinstance(value, DateTime):
       year = "%04d" % value.year()
       month = "%02d" % value.month()

product/Formulator/tests/testSerializeForm.py

@@ -280,7 +280,6 @@ class SerializeTestCase(unittest.TestCase):
             request.update(default_values)
             request.update( {'field_input_style': 'list',
                              'field_input_order': 'mdy',
-                             'field_default_timezone': 'GMT',
                              'field_date_only': '',
                              'field_css_class': 'test_css',
                              'field_time_separator': '$',