From 28e55ad9db74291ea3ca8380fb2bf96280336f55 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Aleksander=20=C5=81ukasz?=
 <aleksander.lukasz@nowoczesnapolska.org.pl>
Date: Thu, 14 Nov 2013 10:32:18 +0100
Subject: [PATCH 1/1] Allow for only one item in a bucket in questions of type
 "przyporzadkuj"

---
 wtem/static/wtem/edumed.coffee | 3 +++
 wtem/static/wtem/edumed.js     | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/wtem/static/wtem/edumed.coffee b/wtem/static/wtem/edumed.coffee
index f4c5c28..ae7aea9 100644
--- 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
diff --git a/wtem/static/wtem/edumed.js b/wtem/static/wtem/edumed.js
index df98753..940ca54 100644
--- a/wtem/static/wtem/edumed.js
+++ b/wtem/static/wtem/edumed.js
@@ -543,6 +543,12 @@
       return d1.data("no") === d2.data("no");
     };
 
+    Przyporzadkuj.prototype.draggable_accept = function($draggable, $droppable) {
+      var dropped;
+      dropped = $droppable.closest("ul, ol").find(".draggable");
+      return (Przyporzadkuj.__super__.draggable_accept.call(this, $draggable, $droppable)) && dropped.length === 0;
+    };
+
     Przyporzadkuj.prototype.check_question = function(question) {
       var all, bad_count, count, mandatory, minimum, optional, pn, pred, qp, self, v, _i, _j, _len, _len1, _ref, _ref1;
       minimum = $(question).data("minimum");
-- 
2.20.1