Mise à jour Camille

site/controllers/index.php

@@ -0,0 +1,33 @@
+<?php
+
+return function($page) {
+    function array_flatten($array) { 
+      if (!is_array($array)) { 
+        return false; 
+      } 
+      $result = array(); 
+      foreach ($array as $key => $value) { 
+        if (is_array($value)) { 
+          $result = array_merge($result, array_flatten($value)); 
+        } else { 
+          $result = array_merge($result, array($key => $value));
+        } 
+      } 
+      return $result; 
+    }
+    
+    function getSingleCategories($pages) {
+        $categoriesRawFields = $pages->pluck('category'); // return ["A, B, C", "A, B"]
+        $splittedCategoriesFields = array_map(function($field) {
+            return explode(',', $field);
+        }, $categoriesRawFields); // return ’[["A", "B", "C",], ["A", "B"]]
+        $flattenedCategories = array_flatten($splittedCategoriesFields);
+        $filters = array_unique($flattenedCategories);    
+        
+        return $filters;
+    }
+
+    return [
+        'categories' => getSingleCategories($page->children())
+    ];
+};