Remove "add another" in Django admin screen

Question

Whenever I'm editing object A with a foreign key to object B, a plus option "add another" is available next to the choices of object B. How do I remove that option?

I configured a user without rights to add object B. The plus sign is still available, but when I click on it, it says "Permission denied". It's ugly.

I'm using Django 1.0.2

Answer 1

The following answer was my original answer but it is wrong and does not answer OP's question:

Simpler solution, no CSS hack and no editing Django codebase:

Add this to your Inline class:

max_num=0 

_{(this is only applicable to inline forms, not foreign key fields as OP asked)}

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The above answer is only useful to hide the "add related" button for inline forms, and not foreign keys as requested.

When I wrote the answer, IIRC the accepted answer hid both, which is why I got confused.

The following seems to provide a solution (though hiding using CSS seems the most feasible thing to do, especially if the "add another" buttons of FKs are in inline forms):

Django 1.7 removing Add button from inline form

Answer 2

Though most of the solutions mentioned here work, there is another cleaner way of doing it. Probably it was introduced in a later version of Django, after the other solutions were presented. (I'm presently using Django 1.7)

To remove the "Add another" option,

class ... #(Your inline class)      def has_add_permission(self, request):         return False 

Similarly if you want to disable "Delete?" option, add the following method in Inline class.

    def has_delete_permission(self, request, obj=None):         return False