Fixed #85 -- Fixed logic of time restrictions

doc/development/api/restriction.rst

@@ -152,6 +152,19 @@ In our example, the implementation could look like this::
 
         # Walk through all variations we are asked for
         for v in variations:
+            var_restrictions = []
+            for restriction in restrictions:
+                applied_to = list(restriction.variations.current.all())
+
+                # Only take this restriction into consideration if it
+                # is directly applied to this variation or if the item
+                # has no variations
+                if v.empty() or ('variation' in v and v['variation'] in applied_to):
+                    var_restrictions.append(restriction)
+
+            if not var_restrictions:
+                continue
+
             # If this point is reached, there ARE time restrictions for this item
             # Therefore, it is only available inside one of the timeframes, but not
             # without any timeframe
@@ -175,15 +188,7 @@ In our example, the implementation could look like this::
 
             # Walk through all restriction objects applied to this item
             prices = []
-            for restriction in restrictions:
-                applied_to = list(restriction.variations.current.all())
-
-                # Only take this restriction into consideration if it
-                # is directly applied to this variation or if the item
-                # has no variations
-                if not v.empty() and ('variation' not in v or v['variation'] not in applied_to):
-                    continue
-
+            for restriction in var_restrictions:
                 if restriction.timeframe_from <= now() <= restriction.timeframe_to:
                     # Selling this item is currently possible
                     available = True