Ignore inline model when saving

Question

I've been looking on the documentation and stackoverflow/forums for a way to ignore the inline children of a model when I save it in django admin. I've been searching for a few days and I can't seem to find an answer.

I have a normal tabularinline object:

class UserOrdersAdmin(admin.TabularInline):
    model = Order
    classes = ['collapse']

And a normal User admin registration:

class UserAdmin(BaseUserAdmin):
    inlines = (UserOrdersAdmin, UserSettingsAdmin)

admin.site.unregister(User)
admin.site.register(User, UserAdmin)

What I simply want is when I press save within the User "change view", it will ignore the inline "UserOrderAdmin" which is inline to UserAdmin.

From the question it is not entirely clear what you are trying to achieve. But I think you should look at the "extra", "max_num" and "readonly_fields" fields you can set on the Inline. Also take a look at the other fields: https://docs.djangoproject.com/en/dev/ref/contrib/admin/#inlinemodeladmin-options — jgadelange, Jul 06 '17 at 13:32
@jgadelange well I put all of the fields in the readonly_fields in UserOrderAdmin and it effectively does the job. However it really don't do what I wanted, which was to only save Parent, as it's most likely still trying to save the UserOrder at the same time. I was hoping there was some easy way of making the entire inline model stop saving on parent save. If I add a new field to the model I have to go in and add it here as well. If you want to make it a proper answer so I can accept it? — Andreas Halvorsen Tollånes, Jul 06 '17 at 13:42

jgadelange · Accepted Answer · 2017-07-06T14:10:20.170

2

From your response on my comment I am getting the idea you want to show some extra information in the admin, that is not editable. This can be achieved using readonly_fields in the Inline, for completeness you should also set the max_num to 0, because otherwise you can add empty inlines.

You could enter all fields manually or use something like given in this answer: https://stackoverflow.com/a/42877484/2354734

The end result would look something like this.

class UserOrdersAdmin(admin.TabularInline):
    model = Order
    classes = ['collapse']
    max_num = 0

    def get_readonly_fields(self, request, obj=None):
        return list(set(
            [field.name for field in self.opts.local_fields] +
            [field.name for field in self.opts.local_many_to_many]
        ))

For completeness of the answer also a link to the documentation

edited Jul 06 '17 at 14:10

answered Jul 06 '17 at 13:54

jgadelange

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I'm getting a RecursionError with that function: "maximum recursion depth exceeded" – Andreas Halvorsen Tollånes Jul 06 '17 at 14:04
Hmmmm... I should check the code before putting it on here... Give me a moment... – jgadelange Jul 06 '17 at 14:05
1

Ah it is due to the fact that `get_fields` also calls `get_readonly_fields`. I added a link to another answer I found when searching for this. – jgadelange Jul 06 '17 at 14:13
that worked wonderfully! I guess I was searching with the wrong keywords in mind. – Andreas Halvorsen Tollånes Jul 06 '17 at 14:18

score 0 · Answer 2 · answered Jul 06 '17 at 13:24

0

Try this:

class UserOrdersAdmin(admin.TabularInline):
    model = Order
    classes = ['collapse']
    extra = 0

answered Jul 06 '17 at 13:24

Diego Puente

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Ignore inline model when saving

2 Answers2