Dump changes

app/role/service.py

@@ -0,0 +1,49 @@
+from typing import Optional
+
+from sqlalchemy.orm import Session
+
+from app.role.model import Role
+
+
+def create_role(db: Session, role: Role) -> Role:
+    role.name = role.name.lower()
+
+    if get_role_by_name(db, role.name) is not None:
+        raise Exception()
+
+    db.add(role)
+    db.commit()
+    db.refresh(role)
+
+    return role
+
+
+def get_role_by_name(db: Session, name: str) -> Optional[Role]:
+    return db.query(Role).filter(Role.name == name).one_or_none()
+
+
+def get_role_by_id(db: Session, id: int) -> Optional[Role]:
+    return db.query(Role).filter(Role.id == id).one_or_none()
+
+
+def get_roles(db: Session) -> list[Role]:
+    return db.query(Role).all()
+
+
+def create_admin_role(db: Session):
+    admin_role = get_role_by_name(db, "admin")
+
+    if admin_role is None:
+        db.add(Role(name="admin"))
+        db.commit()
+
+
+def delete_role_by_id(db: Session, id: int):
+    role = get_role_by_id(db, id)
+
+    if role.name == "admin":
+        return
+
+    if role is not None:
+        db.delete(role)
+        db.commit()