feat: initialize aivideo project

backend/app/modules/invites/repository.py

@@ -0,0 +1,35 @@
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.models.entities import InviteCode, InviteRelation, User
+
+
+class InviteRepository:
+    def __init__(self, db: Session) -> None:
+        self.db = db
+
+    def get_default_code(self, user_id: int) -> InviteCode | None:
+        return self.db.scalar(
+            select(InviteCode).where(
+                InviteCode.user_id == user_id,
+                InviteCode.is_default.is_(True),
+            )
+        )
+
+    def get_code(self, code_value: str) -> InviteCode | None:
+        return self.db.scalar(select(InviteCode).where(InviteCode.invite_code == code_value))
+
+    def inviter_relations(self, user_id: int) -> list[InviteRelation]:
+        return (
+            self.db.query(InviteRelation)
+            .filter(InviteRelation.inviter_user_id == user_id)
+            .order_by(InviteRelation.id.desc())
+            .all()
+        )
+
+    def users_by_ids(self, user_ids: list[int]) -> dict[int, User]:
+        if not user_ids:
+            return {}
+        rows = self.db.scalars(select(User).where(User.id.in_(user_ids))).all()
+        return {row.id: row for row in rows}
+