fix all pylint warnings, add tests (wip) fix recap

backend/src/forms/service.py

@@ -1,8 +1,7 @@
 import src.forms.exceptions as exceptions
-import src.messages as messages
 from sqlalchemy import func
 from sqlmodel import Session, select
-from src import models
+from src import messages, models
 
 
 def get_all(
@@ -109,11 +108,13 @@ def delete_one(session: Session, _id: int) -> models.FormPublic:
 
 
 def is_allowed(
-    session: Session, 
-    user: models.User, 
-    _id: int = None, 
+    session: Session,
+    user: models.User,
+    _id: int = None,
     form: models.FormCreate = None
 ) -> bool:
+    if not _id and not form:
+        return False
     if not _id:
         statement = (
             select(models.Productor)