From 862bf3cac53b3d8552ff5138cd2df5c489770655 Mon Sep 17 00:00:00 2001
From: Andrey <nilov-84@yandex.ru>
Date: Fri, 2 Dec 2016 11:46:42 +0700
Subject: [PATCH] Add filter "filter" for CmsTwigExtension.

---
 src/Extension/CmsTwigExtension.php | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/src/Extension/CmsTwigExtension.php b/src/Extension/CmsTwigExtension.php
index 5a2175b..80219c2 100644
--- a/src/Extension/CmsTwigExtension.php
+++ b/src/Extension/CmsTwigExtension.php
@@ -96,7 +96,8 @@ public function getFunctions()
     public function getFilters()
     {
         return [
-            new \Twig_SimpleFilter('content', [$this, 'content'])
+            new \Twig_SimpleFilter('content', [$this, 'content']),
+            new \Twig_SimpleFilter('filter', [$this, 'listFilter'])
         ];
     }
 
@@ -173,7 +174,7 @@ public function isEditable()
             $this->editable &&
             $session->has('api_token') &&
             $cmsRestClient->validateToken($session->get('api_token'))
-            ;
+        ;
     }
 
     /**
@@ -208,4 +209,24 @@ public function cmsAsset($resource)
     {
         return $this->cmsBaseUrl . '/' . $resource;
     }
-}
\ No newline at end of file
+
+    /**
+     * @param array $list
+     * @param array $filters
+     * @return array
+     */
+    public function listFilter(array $list, array $filters)
+    {
+        return array_filter($list, function ($item) use ($filters) {
+            foreach ($filters as $filter) {
+                foreach ($filter as $filterName => $filterValue) {
+                    if (!isset($item[$filterName]) || $item[$filterName] != $filterValue) {
+                        return false;
+                    }
+
+                    return true;
+                }
+            }
+        });
+    }
+}