Refactor/group page (#666)

* refactor(backend): ♻️ Refactor base class to be abstract and create a router factory method

* feat(frontend): ✨ add group edit

* refactor(backend): ✨ add group edit support

Co-authored-by: hay-kot <hay-kot@pm.me>

mealie/db/models/group/group.py

@@ -0,0 +1,36 @@
+import sqlalchemy as sa
+import sqlalchemy.orm as orm
+from sqlalchemy.orm.session import Session
+
+from mealie.core.config import settings
+from mealie.db.models._model_base import BaseMixins, SqlAlchemyBase
+from mealie.db.models.cookbook import CookBook
+from mealie.db.models.group.webhooks import GroupWebhooksModel
+from mealie.db.models.recipe.category import Category, group2categories
+
+from .._model_utils import auto_init
+
+
+class Group(SqlAlchemyBase, BaseMixins):
+    __tablename__ = "groups"
+    id = sa.Column(sa.Integer, primary_key=True)
+    name = sa.Column(sa.String, index=True, nullable=False, unique=True)
+    users = orm.relationship("User", back_populates="group")
+    categories = orm.relationship(Category, secondary=group2categories, single_parent=True)
+
+    # CRUD From Others
+    mealplans = orm.relationship("MealPlan", back_populates="group", single_parent=True, order_by="MealPlan.start_date")
+    webhooks = orm.relationship(GroupWebhooksModel, uselist=True, cascade="all, delete-orphan")
+    cookbooks = orm.relationship(CookBook, back_populates="group", single_parent=True)
+    shopping_lists = orm.relationship("ShoppingList", back_populates="group", single_parent=True)
+
+    @auto_init({"users", "webhooks", "shopping_lists", "cookbooks"})
+    def __init__(self, **_) -> None:
+        pass
+
+    @staticmethod
+    def get_ref(session: Session, name: str):
+        item = session.query(Group).filter(Group.name == name).one_or_none()
+        if item is None:
+            item = session.query(Group).filter(Group.name == settings.DEFAULT_GROUP).one()
+        return item