Provide a way to customize the model Config class

[naturalethic]

Is your feature request related to a problem? Please describe.
I would like to customize the model config, specifically to specify allow_mutation = False.

Describe the solution you'd like
If a Config class is defined in the model, use it instead of get_pydantic_base_orm_config/

Describe alternatives you've considered
The only solution I've found so far is to subclass ormar's ModelMetaclass and override the new method.

[collerek]

Yeah I had it on mind for quite some time.

You still can edit the config after class declaration as it's stored in __config__ attribute, so after your class declaration you can set:

class Model(ormar.Model):
    ...

Model.__config__.allow_mutation = False

But allowing to overwrite the config in class declaration should be the preferred way.

[naturalethic]

Oh great, that will work for me for now, thanks. I was just typing up a patch, so I'll keep that below, I'm sure you're aware of this possible solution.

In ormar.models.metaclass around line 560, replace:

        attrs["Config"] = get_pydantic_base_orm_config()

with:

        if not "Config" in attrs:
            attrs["Config"] = get_pydantic_base_orm_config()

[collerek]

Yep, if you can issue a PR with this solution that would be welcomed too! :)

[naturalethic]

#286

[collerek]

Released in 0.10.16 - thanks again! :)