Django Summernote: How to delete attachment files from server when removing them from admin?

You can achieve this by overriding the delete method of the Attachment model. Since Attachment is part of Django Summernote, you can create a proxy model and override its delete method to remove the file from the server before deleting the database record.

models.py

from django.contrib import admin
from django_summernote.models import Attachment

# Create a proxy model
class CustomeAttachment(Attachment):
    class Meta:
        proxy = True
        # You can add verbose names here

    def delete(self, *args, **kwargs):
        if self.file and os.path.isfile(self.file.path):
            os.remove(self.file.path)
        super().delete(*args, **kwargs)

admin.py

from django_summernote.models import Attachment
from .models import CustomeAttachment
from django_summernote.admin import AttachmentAdmin

# Unregister the original Attachment model from admin
admin.site.unregister(Attachment)
# Register the proxy model with admin
admin.site.register(CustomeAttachment, AttachmentAdmin)

• We create a proxy model AttachmentFa that inherits from Attachment.

• The delete method is overridden to remove the actual file from the filesystem before calling super().delete() to remove the database record.

• Finally, we unregister the original Attachment model from the admin and register our proxy model so that the delete behavior is applied in the admin panel.

This approach ensures that whenever an attachment is deleted from Django admin, its file is also removed from the server.