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105 lines
2.9 KiB
Python
105 lines
2.9 KiB
Python
from collections.abc import Callable
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from logging import Logger
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from typing import Generic, TypeVar
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from fastapi import HTTPException, status
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from pydantic import UUID4, BaseModel
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from mealie.repos.repository_generic import RepositoryGeneric
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from mealie.schema.response import ErrorResponse
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C = TypeVar("C", bound=BaseModel)
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R = TypeVar("R", bound=BaseModel)
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U = TypeVar("U", bound=BaseModel)
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class HttpRepo(Generic[C, R, U]):
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"""
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The HttpRepo[C, R, U] class is a mixin class that provides a common set of methods for CRUD operations.
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This class is intended to be used in a composition pattern where a class has a mixin property. For example:
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```
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class MyClass:
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def __init__(self, repo, logger):
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self.mixins = HttpRepo(repo, logger)
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```
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"""
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repo: RepositoryGeneric
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exception_msgs: Callable[[type[Exception]], str] | None
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default_message: str = "An unexpected error occurred."
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def __init__(
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self,
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repo: RepositoryGeneric,
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logger: Logger,
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default_message: str | None = None,
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) -> None:
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self.repo = repo
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self.logger = logger
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if default_message:
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self.default_message = default_message
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def handle_exception(self, ex: Exception) -> None:
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# Cleanup
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self.logger.exception(ex)
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self.repo.session.rollback()
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raise ex
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def create_one(self, data: C) -> R | None:
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item: R | None = None
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try:
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item = self.repo.create(data)
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except Exception as ex:
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self.handle_exception(ex)
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return item
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def get_one(self, item_id: int | str | UUID4, key: str | None = None) -> R:
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item = self.repo.get_one(item_id, key)
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if not item:
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raise HTTPException(
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status.HTTP_404_NOT_FOUND,
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detail=ErrorResponse.respond(message="Not found."),
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)
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return item
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def update_one(self, data: U, item_id: int | str | UUID4) -> R:
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item = self.repo.get_one(item_id)
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if not item:
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raise HTTPException(
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status.HTTP_404_NOT_FOUND,
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detail=ErrorResponse.respond(message="Not found."),
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)
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try:
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item = self.repo.update(item_id, data) # type: ignore
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except Exception as ex:
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self.handle_exception(ex)
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return item
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def patch_one(self, data: U, item_id: int | str | UUID4) -> None:
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self.repo.get_one(item_id)
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try:
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self.repo.patch(item_id, data.dict(exclude_unset=True, exclude_defaults=True))
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except Exception as ex:
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self.handle_exception(ex)
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def delete_one(self, item_id: int | str | UUID4) -> R | None:
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item: R | None = None
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try:
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item = self.repo.delete(item_id)
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self.logger.info(f"Deleting item with id {item_id}")
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except Exception as ex:
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self.handle_exception(ex)
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return item
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