Hello again!
Some details about problem:
Here is method on my Manipulator class based on forms.Manipulator:
def getForm(self, data, errors):
form = forms.FormWrapper(self, data, errors)
# There some debug output
debug("Data is: " +repr(data))
for field in form.fields:
debug(field)
return field
After changing client from Malishev to Orion via external form
(clicked on "change client" link) function debug displayed:
edit_zone: [('21', 'Malishev: 500 (500)')]
edit_zone: [('21', 'Malishev: 500 (500)')]
edit_zone: [('20', 'Orion: 1000 (1000)')]
Data is: {'instance': 20, 'access_allowed': True, 'zone': 2}
<select id="id_instance" class="vSelectField" name="instance" size="1">
<option value="21">Malishev: 500 (500)</option>
</select>
<select id="id_instance" class="vSelectField" name="instance" size="1">
<option value="21">Malishev: 500 (500)</option>
</select>
<select id="id_instance" class="vSelectField" name="instance" size="1">
<option value="20">Orion: 1000 (1000)</option>
</select>
So form.fields contains 3 (!!!!) fields with the same name "instance",
but data which passed into forms.FormWrapper contains only 1.
Ok, do some magic and changing method getForm and add some debug
output into view function
def getForm(self, data, errors):
form = forms.FormWrapper(self, data, errors)
debug("Data is: " +repr(data))
data_repr = []
fields = {}
for field in self.fields:
fields[field.field_name] = field
form._fields = fields.values()
for field in form.fields:
if field.field_name != 'instance': continue
debug(field)
return form
and important part from views.py:
# Get the form from manipulator. It is FormWrapper object
base_context['form'] = manipulator.form
# Print interessed for us field "instance"
for field in base_context['form'].fields:
if field.field_name != 'instance': continue
debug("Edit_zone: " +str(field))
# Also get the same field by __getitem__ method
debug("form.instance: " +str(base_context['form'].__getitem__('instance')))
Changing client back from Orion to Malishev and Malishev to Orion.
Debug contains:
edit_zone: [('21', 'Malishev: 500 (500)')]
edit_zone: [('20', 'Orion: 1000 (1000)')]
Data is: {'instance': 20, 'access_allowed': True, 'zone': 2}
<select id="id_instance" class="vSelectField" name="instance" size="1">
<option value="20">Orion: 1000 (1000)</option>
</select>
Edit_zone: <select id="id_instance" class="vSelectField"
name="instance" size="1
">
<option value="20">Orion: 1000 (1000)</option>
</select>
form.instance: <select id="id_instance" class="vSelectField"
name="instance" size="1">
<option value="21">Malishev: 500 (500)</option>
</select>
What we see? base_context['form'].fields contains proper data, but
__getitem__ returned incorrect!
Test case with 100% repetition can be obtained from
http://hosting.svr.net.ua/~ad/test.tgz
Tested on Windows, FreeBSD, Linux with python 2.4.2 and 2.4.3 with
mod_python 3.2.10 and django-admin.py runserver
--
Andrew Degtiariov
DA-RIPE
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