Hide article category if no article matches the search

app/assets/javascripts/list.customized.js

@@ -45,21 +45,21 @@ var CustomizedList = function(id, options, values) {
     
     var resetSearchButton = h.getByClass(options.resetSearchClass, self.list.listContainer);
     $(resetSearchButton).removeClass(options.highlightClass);
-  }
+  };
   
   this.searchDelayEnd = function(searchString, columns) {
     self.list.search(searchString, columns);
-  }
+  };
   
   this.highlightResetButton = function() {
     var resetSearchButton = h.getByClass(options.resetSearchClass, self.list.listContainer);
     $(resetSearchButton).toggleClass(options.highlightClass, self.list.searched);
-  }
+  };
   
   this.resetSearch = function() {
     $('.' + options.delayedSearchClass + ', .' + options.searchClass, self.list.listContainer).val('');
     self.list.search('');
-  }
+  };
   
   init.start(id, options, values);
 }

app/assets/javascripts/list.unlist.js

@@ -62,6 +62,19 @@ List.prototype.templateEngines.unlist = function(list, settings) {
         itemSource = getItemSource(settings.item),
         templater = this;
 
+  var init = {
+    start: function(options) {
+      this.defaults(options);
+      this.callbacks(options);
+    },
+    defaults: function(options) {
+      options.listHeadingsClass = options.listHeadingsClass || 'list-heading';
+    },
+    callbacks: function(options) {
+      list.on('updated', templater.updateListHeadings);
+    }
+  };
+
     function getItemSource(item) {
         if (item === undefined) {
             var nodes = listSource.childNodes,
@@ -143,6 +156,18 @@ List.prototype.templateEngines.unlist = function(list, settings) {
     this.clear = function() {
         $(listSource.childNodes).addClass('unlisted');
     };
+  
+  this.updateListHeadings = function() {
+    var headSel = '.' + settings.listHeadingsClass;
+    
+    $(headSel, listSource).each(function() {
+      if( $(this).nextUntil(headSel, ':not(.unlisted)').length ) {
+        $(this).removeClass('unlisted');
+      }
+    });
+  };
+  
+  init.start(settings);
 };
 
 /*******************************************************************************

app/views/group_orders/_form.html.haml

@@ -73,7 +73,7 @@
         %th{style: "width:15px;"}= t '.sum'
     %tbody.list
       - @order.articles_grouped_by_category.each do |category, order_articles|
-        %tr.no-unlist.article-category
+        %tr.list-heading.article-category
           %td
             = category
             %i.icon-tag