What I needed to do this time is to perform extra operations after saving all inlines in Django Admin. If I do not need to access request object, I could perform extra operations by overriding save method. The thing is I need to get current logged in user, that is exactly why I need to do it from admin.ModelAdmin.
First attempt is by overriding admin.ModelAdmin save_model method. Failed, due to after performing obj.save(), the inline data are not yet available.
What next? Fortunately, I found helpful information from this link.
From that, we could intercept right before preparing the response.
There are three methods which related with setting up response:
response_add, response_change, response_action.
Here is an example of overriding response_add method.
def response_add(self, request, new_object): # Perform extra operation after all inlines are saved return super(AdminSubClass, self).response_add(request, new_object)
There is a ticket with this issue.
Hopefully there will be even better way to perform such action.