I have an inline that displays the contenttype model, so the content_type and object_id fields are displayed. I can hide them using exclude , but I also need to display a drop-down list with all the "Places" and the selected current place based on the content_type and object_id . How can I do it?

Models:

 class Criterias(models.Model): name = ... class Places(models.Model): name = ... class PlacesToCriterias(models.Model): content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE) object_id = models.PositiveIntegerField() content_object = GenericForeignKey() criteria_group = models.ForeignKey(Criterias)

Admin:

 class CriteriaPlacesInlineAdmin(admin.TabularInline): model = PlacesToCriterias class CriteriasAdmin(admin.ModelAdmin): inlines = [CriteriaPlacesInlineAdmin] admin.site.register(Criterias, CriteriasAdmin)

I can add a form to inline CriteriaPlacesInlineAdmin :

 class CriteriaPlacesChoicesFieldForm(forms.ModelForm): places = forms.ModelChoiceField(PlaceTypesGroups.objects.all(), label='place')

but how, in this case, pass content_type and object_id to this form to get a drop-down list with all the "Places" and with the selected current location based on the content_type and object_id ?

    1 answer 1

    Solution found.

    Add form to admin.TabularInline :

     class CriteriaPlacesInlineAdmin(admin.TabularInline): model = PlacesToCriterias form = CriteriaPlacesChoicesFieldForm # <- ADDED FORM class CriteriasAdmin(admin.ModelAdmin): inlines = [CriteriaPlacesInlineAdmin] admin.site.register(Criterias, CriteriasAdmin)

    The form itself:

     class CriteriaPlacesChoicesFieldForm(forms.ModelForm): ct_place_type = ContentType.objects.get_for_model(PlaceTypesGroups) object_id = forms.ModelChoiceField(PlaceTypesGroups.objects.all(), label='places') content_type = forms.ModelChoiceField(ContentType.objects.all(), initial=ct_place_type, widget=forms.HiddenInput()) def clean_object_id(self): return self.cleaned_data['object_id'].pk def clean_content_type(self): return self.ct_place_type