Short way to get all field names of a pydantic class-CodePudding

Minimal example of the class:

from pydantic import BaseModel

class AdaptedModel(BaseModel):
    def get_all_fields(self, alias=False):
        return list(self.schema(by_alias=alias).get("properties").keys())

class TestClass(AdaptedModel):
    test: str

The way it works:

dm.TestClass.get_all_fields(dm.TestClass)

Is there a way to make it work without giving the class again?

Desired way to get all field names:

dm.TestClass.get_all_fields()

It would also work if the field names are assigned to an attribute. Just any way to make it make it more readable

CodePudding user response：

Okay the solution is to use a class-method instead of an instance method:

from pydantic import BaseModel, Field

class AdaptedModel(BaseModel):
    @classmethod
    def get_field_names(cls,alias=False):
        return list(cls.schema(alias).get("properties").keys())

class TestClass(AdaptedModel):
    test: str = Field(alias="TEST")

We are using Python 3.6.8 and apparently it was already introduce. For completeness sake can somebody comment since when @classmethod exists? I assume since 3.6.