Django admin different inlines for change and add view

Question

I need separate views for add and change page. In add page I\'d like to exclude some fields from inline formset. I\'ve prepared two TabularInline classes, one of them contai

Answer 1

Inspired by you guys answer, I was able to add more custom views to the admin.site.

Many times, just want add and change pages of different settings, not real extra views

# admin.py
class FooAdmin(admin.ModelAdmin):
    ....
    def edit_tag(self, obj):              # add a Link tag to change-list page
        return mark_safe('Edit'.format(obj.get_absolute_url()))

    edit_tag.short_description = u'Extra Action'

    def change_view(self, request, object_id, form_url='', extra_context=None):
        if request.GET.get('edit', False):
            self.readonly_fields = (
                'total_amount',
            )
            self.inlines = []
        else:
            self.readonly_fields = (
                'name', 'client', 'constructor', 'total_amount'
            )
            self.inlines = [TransactionInline]
        return super(ProjectAdmin, self).change_view(request, object_id)

    def add_view(self, request, form_url='', extra_context=None):
        self.readonly_fields = (
            'total_amount',
        )
        self.inlines = []
        return super(ProjectAdmin, self).add_view(request)

After this I'll have three views:

1. add view - without inline formset, no need to add related objects.

2. change view 1 - with inline formset, only for adding inline data(related objects), the the object's field is readonly.

3. change view 2 - without inline formset, only for changing the object.

Really simple, and we can do more, thanks everyone.