Hi all,
I try to use the growing table field with singleselect inside
Here is my form setup (more comments below):
@memoized(scope="read_groups")
def _groups():
return get_group_options()
def groups():
return _groups()
@memoized(scope="read_users")
def _users():
return get_user_options()
def users():
return _users()
class EditPermissionForm(GrowingTableForm):
template = "project.widgets.templates.table_form"
submit_text = 'Edit Permissions'
fields = [
GrowingTableFieldSet('edit_permissions',
children = [
SingleSelectField('user_name', options=users),
SingleSelectField('group_name',
options=groups),
CheckBoxList('permissions',
options = ["read", "write"]),
],
label_text='Permissions',
help_text = "Select permissions to grant/revoke on this
content."),
HiddenField('media_id'),
]
1/ I understood that the only way to dynamically set options in
growing's children is by setting a callable to the 'options' of the
SingleSelect
2/ in my use case get_user_options is very both very network and cpu
intensive, so I tried to setup a memoized decorator, otherwise the
computing is done for every instance call. That is, if I set some data
in the 'values' of the forms, once for each field
3/ I have the callable itself call the memoized decorated function,
otherwise tw crashed with a "memoized object is not iterable"
Now I need the cache to expire after the form has been rendered.
I don't really know how I can achieve that (The memoized object has a
purge method)
Of course it would be simpler if I had a way to send the options to
the selectfields from the controller (in params), is there a way to do
that ?
closest subject on the list :
http://groups.google.com/group/turbogears/browse_thread/thread/f43a6fa5cab47d14/4386b782e36df38d
thanks
NIL
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