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Different number of extra formsets in add/change view of ModelAdmin.

Author:
xormag
Posted:
July 9, 2011
Language:
Python
Version:
1.3
Tags:
admin formset inline formset
Score:
1 (after 1 ratings)

Small usability feature to show one number of additional formsets for new object & another for created.

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class ChildModelInlineAdmin(admin.TabularInline):
    # Here you can specify a number 
    # of additional inlines (extra) for add_view.
    extra = 3
    model = SomeModel


class SomeParentModelAdmin(admin.ModelAdmin):
    inlines = (ChildModelInlineAdmin,)

    def get_formsets(self, request, obj=None):
        for inline in self.inline_instances:
            fs = inline.get_formset(request, obj)
            if obj:
                # Here you can specify a number 
                # of additional inlines (extra) for change_view.
                fs.extra = 0
            yield fs

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