Edit Form Submit handler for a Model

I have a fairly simple django model in a Wagtail CMS; essentially:

from django.db import models

class Thingy(models.Model):
    name = models.CharField(max_length=255, blank=False, null=False, unique=True)
    # Many other fields.

    panels = [
        FieldPanel("name"),
        # ...
    ]

I need to perform an action when this model is saved via the Wagtail model edit form (eg /admin/section/thingy/123/edit).

Currently, I have registered a post_save signal, however this has resulted in the method being called when the model is saved programmatically (via an import sync task).

I’ve had a look in the Django docs, but can’t see anything obvious… is there a way to register a signal for the form submission (ideally after the internal submission and save is handled).

(If it’s any relevance; I need to trigger a search reindex based on a relation to the model; anything that references instance 123 of thing Things that was saved needs to be reindexed)

Answer

If you are using ModelAdmin, you can customize your edit view and put your reindexing code in there.

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Answer