Merge branch 'MDL-71402-310' of git://github.com/paulholden/moodle into MOODLE_310_STABLE

availability/yui/build/moodle-core_availability-form/moodle-core_availability-form-debug.js

@@ -198,8 +198,11 @@ M.core_availability.form = {
         // If the groupmode and grouping id aren't set, disable it.
         var groupmode = Y.one('#id_groupmode');
         var groupingid = Y.one('#id_groupingid');
-        if ((!groupmode || Number(groupmode.get('value')) === 0) &&
+        var groupavailability = Number(this.restrictByGroup.getData('groupavailability')) === 1;
-                (!groupingid || Number(groupingid.get('value')) === 0)) {
+        var groupingavailability = Number(this.restrictByGroup.getData('groupingavailability')) === 1;
+
+        if ((!groupmode || Number(groupmode.get('value')) === 0 || !groupavailability) &&
+                (!groupingid || Number(groupingid.get('value')) === 0 || !groupingavailability)) {
             this.restrictByGroup.set('disabled', true);
             return;
         }
@@ -220,23 +223,29 @@ M.core_availability.form = {
         e.preventDefault();
 
         // Add the condition.
+        var groupmode = Y.one('#id_groupmode');
         var groupingid = Y.one('#id_groupingid');
+        var groupavailability = Number(this.restrictByGroup.getData('groupavailability')) === 1;
+        var groupingavailability = Number(this.restrictByGroup.getData('groupingavailability')) === 1;
+
         var newChild;
-        if (groupingid && Number(groupingid.get('value')) !== 0) {
+        if (groupingid && Number(groupingid.get('value')) !== 0 && groupingavailability) {
             // Add a grouping restriction if one is specified.
             newChild = new M.core_availability.Item(
                     {type: 'grouping', id: Number(groupingid.get('value'))}, true);
-        } else {
+        } else if (groupmode && groupavailability) {
             // Otherwise just add a group restriction.
             newChild = new M.core_availability.Item({type: 'group'}, true);
         }
 
         // Refresh HTML.
+        if (newChild !== null) {
             this.rootList.addChild(newChild);
             this.update();
             this.rootList.renumber();
             this.rootList.updateHtml();
         }
+    }
 };
 
 

availability/yui/build/moodle-core_availability-form/moodle-core_availability-form.js

@@ -198,8 +198,11 @@ M.core_availability.form = {
         // If the groupmode and grouping id aren't set, disable it.
         var groupmode = Y.one('#id_groupmode');
         var groupingid = Y.one('#id_groupingid');
-        if ((!groupmode || Number(groupmode.get('value')) === 0) &&
+        var groupavailability = Number(this.restrictByGroup.getData('groupavailability')) === 1;
-                (!groupingid || Number(groupingid.get('value')) === 0)) {
+        var groupingavailability = Number(this.restrictByGroup.getData('groupingavailability')) === 1;
+
+        if ((!groupmode || Number(groupmode.get('value')) === 0 || !groupavailability) &&
+                (!groupingid || Number(groupingid.get('value')) === 0 || !groupingavailability)) {
             this.restrictByGroup.set('disabled', true);
             return;
         }
@@ -220,23 +223,29 @@ M.core_availability.form = {
         e.preventDefault();
 
         // Add the condition.
+        var groupmode = Y.one('#id_groupmode');
         var groupingid = Y.one('#id_groupingid');
+        var groupavailability = Number(this.restrictByGroup.getData('groupavailability')) === 1;
+        var groupingavailability = Number(this.restrictByGroup.getData('groupingavailability')) === 1;
+
         var newChild;
-        if (groupingid && Number(groupingid.get('value')) !== 0) {
+        if (groupingid && Number(groupingid.get('value')) !== 0 && groupingavailability) {
             // Add a grouping restriction if one is specified.
             newChild = new M.core_availability.Item(
                     {type: 'grouping', id: Number(groupingid.get('value'))}, true);
-        } else {
+        } else if (groupmode && groupavailability) {
             // Otherwise just add a group restriction.
             newChild = new M.core_availability.Item({type: 'group'}, true);
         }
 
         // Refresh HTML.
+        if (newChild !== null) {
             this.rootList.addChild(newChild);
             this.update();
             this.rootList.renumber();
             this.rootList.updateHtml();
         }
+    }
 };
 
 

availability/yui/src/form/js/form.js

@@ -196,8 +196,11 @@ M.core_availability.form = {
         // If the groupmode and grouping id aren't set, disable it.
         var groupmode = Y.one('#id_groupmode');
         var groupingid = Y.one('#id_groupingid');
-        if ((!groupmode || Number(groupmode.get('value')) === 0) &&
+        var groupavailability = Number(this.restrictByGroup.getData('groupavailability')) === 1;
-                (!groupingid || Number(groupingid.get('value')) === 0)) {
+        var groupingavailability = Number(this.restrictByGroup.getData('groupingavailability')) === 1;
+
+        if ((!groupmode || Number(groupmode.get('value')) === 0 || !groupavailability) &&
+                (!groupingid || Number(groupingid.get('value')) === 0 || !groupingavailability)) {
             this.restrictByGroup.set('disabled', true);
             return;
         }
@@ -218,23 +221,29 @@ M.core_availability.form = {
         e.preventDefault();
 
         // Add the condition.
+        var groupmode = Y.one('#id_groupmode');
         var groupingid = Y.one('#id_groupingid');
+        var groupavailability = Number(this.restrictByGroup.getData('groupavailability')) === 1;
+        var groupingavailability = Number(this.restrictByGroup.getData('groupingavailability')) === 1;
+
         var newChild;
-        if (groupingid && Number(groupingid.get('value')) !== 0) {
+        if (groupingid && Number(groupingid.get('value')) !== 0 && groupingavailability) {
             // Add a grouping restriction if one is specified.
             newChild = new M.core_availability.Item(
                     {type: 'grouping', id: Number(groupingid.get('value'))}, true);
-        } else {
+        } else if (groupmode && groupavailability) {
             // Otherwise just add a group restriction.
             newChild = new M.core_availability.Item({type: 'group'}, true);
         }
 
         // Refresh HTML.
+        if (newChild !== null) {
             this.rootList.addChild(newChild);
             this.update();
             this.rootList.renumber();
             this.rootList.updateHtml();
         }
+    }
 };
 
 

course/moodleform_mod.php

@@ -621,10 +621,23 @@ abstract class moodleform_mod extends moodleform {
         if (!empty($CFG->enableavailability)) {
             // Add special button to end of previous section if groups/groupings
             // are enabled.
-            if ($this->_features->groups || $this->_features->groupings) {
+
+            $availabilityplugins = \core\plugininfo\availability::get_enabled_plugins();
+            $groupavailability = $this->_features->groups && array_key_exists('group', $availabilityplugins);
+            $groupingavailability = $this->_features->groupings && array_key_exists('grouping', $availabilityplugins);
+
+            if ($groupavailability || $groupingavailability) {
+                // When creating the button, we need to set type=button to prevent it behaving as a submit.
                 $mform->addElement('static', 'restrictgroupbutton', '',
-                        html_writer::tag('button', get_string('restrictbygroup', 'availability'),
+                    html_writer::tag('button', get_string('restrictbygroup', 'availability'), [
-                        array('id' => 'restrictbygroup', 'disabled' => 'disabled', 'class' => 'btn btn-secondary')));
+                        'id' => 'restrictbygroup',
+                        'type' => 'button',
+                        'disabled' => 'disabled',
+                        'class' => 'btn btn-secondary',
+                        'data-groupavailability' => $groupavailability,
+                        'data-groupingavailability' => $groupingavailability
+                    ])
+                );
             }
 
             // Availability field. This is just a textarea; the user interface