CODEWITHSUNDEEP
pythondjangodjango-modelsdjango-admin
nemesifier
nemesifier

Reputation: 8529

Django admin select ordering different than default model ordering

I have a model (Node) which is ordered by date in the admin, so latest nodes are shown first. This is fine.

The same model (Node) is referenced by another model (Device). When editing a device there is a list of nodes (in an HTML select) which is also ordered by date. I would like this select to be ordered by name and not by date.

Is it possible to have two different ordering methods, one for the list of objects and one for the select box?

Thanks.

Upvotes: 8

Views: 1363

Answers (3)

Vladimir Vovk
Vladimir Vovk

Reputation: 798

You can create custom form for DeviceAdmin and set queryset parameter for 'Node' field. 

# in models.py we have Device model with Node field
class Device(models.Model):
    node = models.ForeignKey(Node)
    ...

# in admin.py we have DeviceAdmin with custom form
class DeviceAdminForm(forms.ModelForm):
    node = forms.ModelChoiceField(queryset=Node.objects.order_by('name'), label='Node')

    class Meta:
        model = Device

class DeviceAdmin(admin.ModelAdmin):
    form = DeviceAdminForm

Upvotes: 0

Priyeshj
Priyeshj

Reputation: 1345

Have you tried something like:

class Node
        name = ...
        date = ...
        fields ....

        class Meta:
            order_with_respect_to='Device'
            ordering = ('Device', 'name')

Upvotes: 2

Ismail Badawi
Ismail Badawi

Reputation: 37187

The easiest thing would be to override the formfield_for_foreignkey method in the ModelAdmin for Device, something like

def formfield_for_foreignkey(self, db_field, request, **kwargs):
    if db_field.name == 'node':
        kwargs['queryset'] = Node.objects.order_by('name')
    return super(DeviceAdmin, self).formfield_for_foreignkey(db_field, request, **kwargs)

(I'm assuming a fair amount here. Hopefully it's clear!)

Similarly there's formfield_for_manytomany.

Upvotes: 6

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