Files
mealie/mealie/services/migrations/utils/database_helpers.py
2024-08-22 10:14:32 -05:00

68 lines
2.1 KiB
Python

from __future__ import annotations
from collections.abc import Iterable
from typing import TYPE_CHECKING, TypeVar
from pydantic import BaseModel
from slugify import slugify
from sqlalchemy.orm import Session
from mealie.repos.all_repositories import AllRepositories
from mealie.schema.recipe import RecipeCategory
from mealie.schema.recipe.recipe import RecipeTag
from mealie.schema.recipe.recipe_category import CategoryOut, CategorySave, TagOut, TagSave
T = TypeVar("T", bound=BaseModel)
if TYPE_CHECKING:
from mealie.repos.repository_generic import RepositoryGeneric
class DatabaseMigrationHelpers:
def __init__(self, db: AllRepositories, session: Session) -> None:
self.session = session
self.db = db
def _get_or_set_generic(
self, accessor: RepositoryGeneric, items: Iterable[str], create_model: type[T], out_model: type[T]
) -> list[T]:
"""
Utility model for getting or setting categories or tags. This will only work for those two cases.
This is probably a bad implementation of this pattern.
"""
items_out = []
for item_name in items:
slug_lookup = slugify(item_name)
item_model = accessor.get_one(value=slug_lookup, key="slug", override_schema=out_model)
if not item_model:
item_model = accessor.create(
create_model(
group_id=self.db.group_id,
name=item_name,
slug=slug_lookup,
)
)
items_out.append(item_model.model_dump())
return items_out
def get_or_set_category(self, categories: Iterable[str]) -> list[RecipeCategory]:
return self._get_or_set_generic(
self.db.categories,
categories,
CategorySave,
CategoryOut,
)
def get_or_set_tags(self, tags: Iterable[str]) -> list[RecipeTag]:
return self._get_or_set_generic(
self.db.tags,
tags,
TagSave,
TagOut,
)