Fix data

app/models/members_products.py

@@ -40,6 +40,13 @@ class MembersProducts(db.Model):
             return None
         return member_products
 
+    @classmethod
+    def get_member_product_by_product__member_id(cls, member_id, product_id):
+        member_product = cls.query.filter_by(member_id=str(member_id), product_id=str(product_id))
+        if not member_product:
+            return None
+        return member_product
+
 
     def to_dict(self):
         """