Only show multiselect option on dropdown selection

Hide multi selection option for typeahead selections

include/class.dynamic_forms.php

@@ -1064,8 +1064,9 @@ class SelectionField extends FormField {
     function getConfigurationOptions() {
         return array(
             'widget' => new ChoiceField(array(
-                'id'=>1, 'label'=>__('Widget'), 'required'=>false,
-                'default' => 'dropdown',
+                'id'=>1,
+                'label'=>__('Widget'),
+                'required'=>false, 'default' => 'dropdown',
                 'choices'=>array(
                     'dropdown' => __('Drop Down'),
                     'typeahead' =>__('Typeahead'),
@@ -1076,14 +1077,19 @@ class SelectionField extends FormField {
                 'hint'=>__('Typeahead will work better for large lists')
             )),
             'multiselect' => new BooleanField(array(
-                'id'=>1, 'label'=>__(/* Type of widget allowing multiple selections */ 'Multiselect'),
+                'id'=>2,
+                'label'=>__(/* Type of widget allowing multiple selections */ 'Multiselect'),
                 'required'=>false, 'default'=>false,
                 'configuration'=>array(
                     'desc'=>__('Allow multiple selections')),
-                'hint' => __('Dropdown only'),
+                'visibility' => new VisibilityConstraint(
+                    new Q(array('widget__eq'=>'dropdown')),
+                    VisibilityConstraint::HIDDEN
+                ),
             )),
             'prompt' => new TextboxField(array(
-                'id'=>2, 'label'=>__('Prompt'), 'required'=>false, 'default'=>'',
+                'id'=>3,
+                'label'=>__('Prompt'), 'required'=>false, 'default'=>'',
                 'hint'=>__('Leading text shown before a value is selected'),
                 'configuration'=>array('size'=>40, 'length'=>40),
             )),

include/class.forms.php

@@ -611,9 +611,9 @@ class FormField {
             $T = new $clazz();
             $config = $this->getConfiguration();
             $this->_cform = new Form($T->getConfigurationOptions(), $source);
-            if (!$source && $config) {
+            if (!$source) {
                 foreach ($this->_cform->getFields() as $name=>$f) {
-                    if (isset($config[$name]))
+                    if ($config && isset($config[$name]))
                         $f->value = $config[$name];
                     elseif ($f->get('default'))
                         $f->value = $f->get('default');