Question

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Override django-admin edit form field values for encrypted data

The inline model has encrypted data and I need to override the method that renders each field in admin.TabularInline to decrypt the data.

Answer 1

You can add functions to your TabularInline and then show them as fields:

class MyTabularInline(admin.TabularInline):
    model = MyModel
    readonly_fields = ['decrypt_first_field', 'decrypt_second_field']

    def decrypt_first_field(self, obj):
        if obj.first_field:
            return decrypt(obj.first_field)
        else:
            return 'Nothing here ...'

    def decrypt_first_field(self, obj):
        ...