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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)

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Answer

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

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