diff --git a/app/repositories/grand_project.py b/app/repositories/grand_project.py
index f5cedb7..bb4d236 100644
--- a/app/repositories/grand_project.py
+++ b/app/repositories/grand_project.py
@@ -1,7 +1,26 @@
+import uuid
+
+from fastapi import HTTPException
+
 from app.models.grand_project import GrandProjectModel
 from core.repositories.base import BaseRepository
+from core.utils.crudify import mongo_inserter, mongo_updater
 
 COLLECTION = "grand_project"
 class GrandProjectRepository(BaseRepository[GrandProjectModel]):
     def __init__(self):
-        super().__init__(collection=COLLECTION, model=GrandProjectModel)
\ No newline at end of file
+        super().__init__(collection=COLLECTION, model=GrandProjectModel)
+
+    def check_weight(self,_inp:GrandProjectModel):
+        sum = 0
+        for project in _inp.assign_project:
+            sum = project.weight
+        if sum != 100:
+            raise HTTPException(422, 'مجموعه وزن ها باید صد درصد باشد')
+    async def create(self, create: GrandProjectModel):
+        self.check_weight(create)
+        return await mongo_inserter(create, self.COLLECTION, getter=self.get)
+
+    async def update(self,_id:uuid.UUID, update:GrandProjectModel):
+        self.check_weight(update)
+        return await mongo_updater(update,_id,COLLECTION)
\ No newline at end of file