How do I add functionality to all of my models without repeating myself?

[monospacedmagic]

I want to add a _d attribute and a few classmethods and some regular methods to models by creating a subclass of tortoise.models.Model that users of my framework can use. However, subclassing Model would create a new database model, which is not what I want. From what I've seen, the Model class contains a lot of logic, and it seems not feasible to create a new class with metaclass=ModelMeta. What are my options here? Am I missing something?

[abondar]

Hi

There is abstract=True option for models meta, it's mentioned there https://tortoise-orm.readthedocs.io/en/latest/models.html

Is it what are you looking for?

[monospacedmagic]

Ohhh! Thanks, I somehow completely skipped that. It's exactly what I was looking for. :)

[tcmal]

When using abstract=True, it seems like the child classes don't inherit fields, ie:

class Entity(Model):
    x = fields.IntField()
    y = fields.IntField()
    class Meta:
        abstract = True

class ChestEntity(Entity, Model):
    level = fields.IntField()
    opened = fields.BooleanField()

Doesn't create an entity table but just leaves the chestentity table as id, level & opened.

Am I misunderstanding this feature?

[grigi]

Try just inheriting from Entity instead of both Enitity and Model?

[grigi]

I realised we don't have a detailed example in the docs for this, nor is it part of the test suite... :disappointed:

[tcmal]

Still doesn't seem to work.

[grigi]

@tcmal Can you please check with release v0.12.4 ? new docs: https://tortoise-orm.readthedocs.io/en/latest/models.html#inheritence