Filter on custom fields presence

client/components/sidebar/sidebarFilters.jade

@@ -40,12 +40,15 @@ template(name="filterSidebar")
               | (<span class="username">{{ username }}</span>)
             if Filter.members.isSelected _id
               i.fa.fa-check
+  hr
   ul.sidebar-list
     each currentBoard.customFields
       li
-        a.name.js-toggle-label-filter
+        a.name.js-toggle-custom-fields-filter
           span.sidebar-list-item-description
             {{ name }}
+          if Filter.customFields.isSelected _id
+              i.fa.fa-check
   if Filter.isActive
     hr
     a.sidebar-btn.js-clear-all

client/components/sidebar/sidebarFilters.js

@@ -11,6 +11,11 @@ BlazeComponent.extendComponent({
         Filter.members.toggle(this.currentData()._id);
         Filter.resetExceptions();
       },
+      'click .js-toggle-custom-fields-filter'(evt) {
+        evt.preventDefault();
+        Filter.customFields.toggle(this.currentData()._id);
+        Filter.resetExceptions();
+      },
       'click .js-clear-all'(evt) {
         evt.preventDefault();
         Filter.reset();

client/lib/filter.js

@@ -86,8 +86,9 @@ Filter = {
   // before changing the schema.
   labelIds: new SetFilter(),
   members: new SetFilter(),
+  customFields: new SetFilter(),
 
-  _fields: ['labelIds', 'members'],
+  _fields: ['labelIds', 'members', 'customFields'],
 
   // We don't filter cards that have been added after the last filter change. To
   // implement this we keep the id of these cards in this `_exceptions` fields
@@ -111,7 +112,13 @@ Filter = {
     this._fields.forEach((fieldName) => {
       const filter = this[fieldName];
       if (filter._isActive()) {
-        filterSelector[fieldName] = filter._getMongoSelector();
+        if (fieldName === 'customFields'){
+          filterSelector[fieldName] = {_id: filter._getMongoSelector()};
+        }
+        else
+        {
+          filterSelector[fieldName] = filter._getMongoSelector();
+        }
         emptySelector[fieldName] = filter._getEmptySelector();
         if (emptySelector[fieldName] !== null) {
           includeEmptySelectors = true;