trying to catch edgecase bugs

app.py

@@ -9,6 +9,7 @@ from deck import bp as deck_bp
 from menu import bp as menu_bp
 from upload import bp as upload_bp
 from share import share
+from matches import bp as matches_bp
 
 from create_db import Card, Deck
 from config import CONFIG
@@ -57,6 +58,10 @@ def create_app(test_config=None):
         deck_query = dbsession.query(Deck).filter(Deck.owner_id == user_id)
         deck_object = deck_query.filter(Deck.completed == False).first()
         # @TODO: ce deck, ne obstaja, kaj naj zaj jas?
+        if len(deck_object.cards_by_id.split(",")) == 0:
+            deck_query.filter(Deck)
+            return index()
+
 
         deck_id = deck_object.id
 
@@ -116,18 +121,16 @@ def create_app(test_config=None):
         show_card = dbsession.query(Card).get(show_card_id)
 
         if not show_card:
-            raise Exception("Ne najdem naslednje karte")
+            print("SHOWWWWWWW")
+            return render_template("error/no_cards_in_collection.html")
+            #raise Exception("Ne najdem naslednje karte")
 
         # Prikaži obrazec
         return render_template("deck/index.html", username=username, card=show_card)
             
     
     @app.route("/share_button", methods=["GET", "POST"])
-    def share_button():
-        userid = session["user_id"]
-        username = session["username"]
-        card_number = session["card_number"]
-    
+    def share_button():   
         print("share!!!")
         return redirect(url_for("deck"))
 
@@ -141,12 +144,13 @@ def create_app(test_config=None):
     def match():
         return "match"    
     
-    
+
     #app.register_blueprint(bp) # ??
     app.register_blueprint(auth_bp)
     app.register_blueprint(deck_bp)
     app.register_blueprint(menu_bp)
     app.register_blueprint(upload_bp)
+    app.register_blueprint(matches_bp)
     app.add_url_rule('/', endpoint='index')
 
     return app