On 5/01/2020 11:42 am, Mike Dewhirst wrote:
On 4/01/2020 9:03 pm, Integr@te System wrote:
Hi Mike,
As we look at selected_choice result from iterating v over value
(line 428), option_value base on choice(line 438).
so we can limit input parameter of value variable from this def().
selected_choices appear in the selected box on screen and choices
appear in the available choices box.
I can see how to tweak either of those if the method was my own. But
it is an Admin method which interfaces with javascript to provide the
user interface for making those selections.
I think my original question was too brief.
I'm thinking now I should be using my own version of AutocompleteMixin
somehow and use formfield_for_manytomany when db_field == "groups" in
my admin.py to get access to it.
formfield_for_manytomany calls the AutocompleteSelectMultiple class
which inherits AutocompleteMixin which has the optgroups() method
which contains selected_choices and choices which are of interest to me.
Turns out the data I want to manipulate is encapsulated in widgets.py
FilteredSelectMultiple() where it returns context. That is called
directly from formfield_for_manytomany() so all I need to do is override
that in admin.py and tweak the context.
Thanks all who responded
Cheers
Mike
That said, my question really is "Huh! How do I do that?"
Maybe I'll do some experiments
Thanks in advance if you can short-circuit my research
Cheers
Mike
Hope if heplful.
On Sat, Jan 4, 2020, 11:00 Mike Dewhirst <[email protected]
<mailto:[email protected]>> wrote:
In the Admin where user group membership is shown and groups can be
selected from choices derived from auth_groups, I want to control
the
available choices.
It seems the place to do so might be in admin/widgets.py in the
AutocompleteMixin.optgroups() method a few lines in where it says
...
choices = (
(obj.pk <http://obj.pk>,
self.choices.field.label_from_instance(obj))
for obj in
self.choices.queryset.using(self.db).filter(pk__in=selected_choices)
)
Could a very kind person explain to me how I can hijack this and
remove
a couple of groups from the resulting choices?
My use case is that I want members of the 'admin' group to be
able to
assign any group membershipto any other userexcept for a couple of
groups which are too permissive. The excepted groups can only be
assigned by a Superuser.
Many thanks for any hints
Cheers
Mike
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