diff --git a/create_db.py b/create_db.py
index ddb6eb3..53aff5f 100644
--- a/create_db.py
+++ b/create_db.py
@@ -36,7 +36,7 @@ class Card(Base):
     interest_rate   = Column(Float)
     item_location   = Column(String(1024))
     last_review     = Column(Text)
-    #shared          = Column(BOOLEAN) #tu bo že problem, ker mora imeti shared za vsakega svoj IR
+    share_id        = Column(Integer) #explain: 0 means not shared, otherwise increment from db and generate new cards for all relevant(tbd) users
 
 class Deck(Base):
     __tablename__   = 'deck'
diff --git a/populate_db_once.py b/populate_db_once.py
index b5c171a..71d7092 100644
--- a/populate_db_once.py
+++ b/populate_db_once.py
@@ -27,7 +27,7 @@ for item in l:
 
         public_share = nc.share_file_with_link("/GIA CLOUD/"+name) 
         public_link = public_share.get_link()+"/download/"+name
-        card = Card(title=name, interest_rate=-1.0, owner_id=1, item_location=public_link, last_review=None)
+        card = Card(title=name, interest_rate=-1.0, owner_id=1, item_location=public_link, last_review=None, share_id=0)
         dbsession.add(card)
         dbsession.commit()
 
diff --git a/upload.py b/upload.py
index f358677..d66e195 100644
--- a/upload.py
+++ b/upload.py
@@ -57,7 +57,7 @@ def upload_file():
         public_link = nc.share_file_with_link("/GIA CLOUD/" + filename).get_link()+"/download/"+filename
         
         #add card
-        card = Card(title=filename, interest_rate=-1.0, owner_id=user_id, item_location=public_link, last_review=None)
+        card = Card(title=filename, interest_rate=-1.0, owner_id=user_id, item_location=public_link, last_review=None, share_id=0)
         dbsession.add(card)
         dbsession.commit()