title: Django - Inline Object's overrided method not called
body: <pre><code>class ServiceInline(admin.TabularInline):
      model = Service
  
  class PlanAdmin(admin.ModelAdmin):
      inlines = [ServiceInline]
  
  class ServiceAdmin(admin.ModelAdmin):   
      def save_model(self, request, obj, form, change):
          instance = form.save(commit = False)
          if not instance.created_at and not instance.modified_at:
             instance.created_by = request.user
          instance.modified_by = request.user
          instance.save()        
          form.save_m2m()
          return instance
  </code></pre>
  
  <p>I have overrided the <code>save_model(self, request, obj, form, change):</code> method of Service class in it's admin class. But this overrided method is not getting called when a Service object added via Inline (Plan's page). Any suggestions? </p>