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94 lines
2.3 KiB
Python
94 lines
2.3 KiB
Python
# Copyright 2023 ACSONE SA/NV
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# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl).
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from typing import Generic, TypeVar
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from extendable_pydantic import ExtendableBaseModel
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# User models
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class User(ExtendableBaseModel, revalidate_instances="always"):
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"""
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We MUST set revalidate_instances="always" to be sure that FastAPI validates
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responses of this model type.
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"""
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name: str
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@classmethod
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def from_user(cls, user):
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return cls.model_construct(name=user.name)
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class ExtendedUser(User, extends=True):
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address: str
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@classmethod
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def from_user(cls, user):
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res = super().from_user(user)
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if user.street or user.city:
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# Dummy address construction
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res.address = (user.street or "") + (user.city or "")
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return res
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class PrivateUser(User):
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password: str
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@classmethod
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def from_user(cls, user):
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res = super().from_user(user)
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res.password = user.password
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return res
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_T = TypeVar("_T")
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class SearchResponse(ExtendableBaseModel, Generic[_T]):
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total: int
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items: list[_T]
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class UserSearchResponse(SearchResponse[User]):
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"""We declare the generic type of the items of the list as User
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which is the base model of the extended. When used, it should be resolved
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to ExtendedUser, but items of PrivateUser class must stay private and not be returned"""
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# Customer models: same as above but with extra="forbid"
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class Customer(ExtendableBaseModel, revalidate_instances="always", extra="forbid"):
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"""
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Same hierarchy as User models, but with an extra config parameter:
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forbid extra fields.
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"""
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name: str
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@classmethod
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def from_customer(cls, customer):
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return cls.model_construct(name=customer.name)
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class ExtendedCustomer(Customer, extends=True):
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address: str
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@classmethod
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def from_customer(cls, customer):
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res = super().from_customer(customer)
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if customer.street or customer.city:
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# Dummy address construction
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res.address = (customer.street or "") + (customer.city or "")
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return res
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class PrivateCustomer(Customer):
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password: str
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@classmethod
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def from_customer(cls, customer):
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res = super().from_customer(customer)
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res.password = customer.password
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return res
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