How to overriding model in django third party app?

Question

I want to modified django third party model. Here the original code.

default_price = models.DecimalField(
        decimal_places=2, max_digits=7,
        null=True, blank=True,
        verbose_name=_("Default price"),
    )

I want to change max_digits=7 to max_digits=9, so it becomes:

default_price = models.DecimalField(
        decimal_places=2, max_digits=9,
        null=True, blank=True,
        verbose_name=_("Default price"),
    )

Is it possible to modified django third party model without directly touch original third party code or fork?

Thanks

https://stackoverflow.com/questions/12550434/how-to-override-a-django-reusable-apps-model#answer-12551558 — Jagjeet Singh, Apr 11 '19 at 05:49

dayongky · Accepted Answer · 2019-04-12T11:26:20.917

0

I solve it with this two lines code in my models:

from thirdparty.models import ParentModelClass
ParentModelClass._meta.get_field('default_price').max_digits = 9

then makemigrations && migrate

voila it work, but i don't know any downside using this tricks.

It thanks to Peterino comments on this https://stackoverflow.com/a/2357942/2579404

Hope it will help others with similar situation as well.

edited Apr 12 '19 at 11:26

answered Apr 12 '19 at 11:13

dayongky

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How to overriding model in django third party app?

1 Answers1