allow to add additional parameters from for data

Author: n3o77

Form/Type/Select2EntityType.php

@@ -13,6 +13,7 @@
 use Symfony\Component\Routing\RouterInterface;
 use Tetranz\Select2EntityBundle\Form\DataTransformer\EntitiesToPropertyTransformer;
 use Tetranz\Select2EntityBundle\Form\DataTransformer\EntityToPropertyTransformer;
+use Symfony\Component\PropertyAccess\PropertyAccess;
 
 /**
  *
@@ -94,6 +95,17 @@ public function finishView(FormView $view, FormInterface $form, array $options)
             $view->vars[$varName] = $options[$varName];
         }
 
+        if (isset($options['req_params']) && is_array($options['req_params']) && count($options['req_params']) > 0) {
+            $accessor = PropertyAccess::createPropertyAccessor();
+
+            $reqParams = [];
+            foreach ($options['req_params'] as $key => $reqParam) {
+                $reqParams[$key] = $accessor->getValue($view,  $reqParam . '.vars[full_name]');
+            }
+
+            $view->vars['attr']['data-req_params'] = json_encode($reqParams);
+        }
+
         //tags options
         $varNames = array_keys($this->config['allow_add']);
         foreach ($varNames as $varName) {
@@ -154,6 +166,7 @@ public function configureOptions(OptionsResolver $resolver)
                 'transformer' => null,
                 'autostart' => true,
                 'width' => isset($this->config['width']) ? $this->config['width'] : null,
+                'req_params' => array(),
             )
         );
     }

Resources/public/js/select2entity.js

@@ -8,6 +8,17 @@
                 scroll = $s2.data('scroll'),
                 prefix = Date.now(),
                 cache = [];
+
+            var reqParams = $s2.data('req_params');
+            if (reqParams) {
+                $.each(reqParams, function (key, value) {
+                    $('*[name="'+value+'"]').on('change', function () {
+                        $s2.val(null);
+                        $s2.trigger('change');
+                    });
+                });
+            }
+
             // Deep-merge the options
             $s2.select2($.extend(true, {
                 // Tags support
@@ -43,17 +54,23 @@
                         }
                     },
                     data: function (params) {
+                        var ret = {
+                            'q': params.term
+                        };
+
+                        var reqParams = $s2.data('req_params');
+                        if (reqParams) {
+                            $.each(reqParams, function (key, value) {
+                                ret[key] = $('*[name="'+value+'"]').val()
+                            });
+                        }
+
                         // only send the 'page' parameter if scrolling is enabled
                         if (scroll) {
-                            return {
-                                q: params.term,
-                                page: params.page || 1
-                            };
+                            ret['page'] = params.page || 1;
                         }
 
-                        return {
-                            q: params.term
-                        };
+                        return ret;
                     },
                     processResults: function (data, params) {
                         var results, more = false, response = {};