Allow for only one item in a bucket in questions of type "przyporzadkuj"

[edumed.git] / wtem / static / wtem / edumed.coffee

diff --git a/wtem/static/wtem/edumed.coffee b/wtem/static/wtem/edumed.coffee
index f4c5c28..ae7aea9 100644 (file)
--- a/wtem/static/wtem/edumed.coffee
+++ b/wtem/static/wtem/edumed.coffee
@@ -415,6 +415,9 @@ class Przyporzadkuj extends Exercise
   draggable_equal: (d1, d2) ->
     return d1.data("no") == d2.data("no")
 
+  draggable_accept: ($draggable, $droppable) ->
+    dropped = $droppable.closest("ul, ol").find(".draggable")
+    return (super $draggable, $droppable) && dropped.length == 0
 
   check_question: (question) ->
     # subjects placed in predicates