Merge pull request #863 from romainneutron/purge

[3.9] Reduce memory usage

lib/classes/User/Adapter.php

@@ -47,12 +47,6 @@ class User_Adapter implements User_Interface, cache_cacheableInterface
      */
     protected $_prefs = [];
 
-    /**
-     *
-     * @var array
-     */
-    protected static $_users = [];
-
     /**
      *
      * @var array
@@ -1352,4 +1346,9 @@ class User_Adapter implements User_Interface, cache_cacheableInterface
 
         return $vars;
     }
+
+    public static function purge()
+    {
+        self::$_instance = [];
+    }
 }

lib/classes/appbox.php

@@ -27,12 +27,6 @@ class appbox extends base
      */
     protected $id;
 
-    /**
-     *
-     * @var appbox
-     */
-    protected static $_instance;
-
     /**
      *
      * constant defining the app type

lib/classes/caption/Field/Value.php

@@ -465,4 +465,9 @@ class caption_Field_Value implements cache_cacheableInterface
 
         unset(self::$localCache[$this->get_cache_key($option)]);
     }
+
+    public static function purge()
+    {
+        self::$localCache = [];
+    }
 }

lib/classes/caption/field.php

@@ -448,4 +448,9 @@ class caption_field implements cache_cacheableInterface
     {
         unset(self::$localCache[$this->get_cache_key($option)]);
     }
+
+    public static function purge()
+    {
+        self::$localCache = [];
+    }
 }

lib/classes/collection.php

@@ -730,4 +730,9 @@ class collection implements cache_cacheableInterface
     {
         return $this->databox->delete_data_from_cache($this->get_cache_key($option));
     }
+
+    public static function purge()
+    {
+        self::$_collections = [];
+    }
 }

lib/classes/connection.php

@@ -53,7 +53,7 @@ class connection
      */
     public static function printLog(Application $app)
     {
-        if (!$app['debug']) {
+        if ($app->getEnvironment() !== Application::ENV_DEV) {
             return;
         }
 

lib/classes/databox.php

@@ -1464,4 +1464,9 @@ class databox extends base
         }
         parent::delete_data_from_cache($option);
     }
+
+    public static function purge()
+    {
+        self::$_xpath_thesaurus = self::$_dom_thesaurus = self::$_thesaurus = self::$_sxml_thesaurus = [];
+    }
 }

lib/classes/databox/field.php

@@ -1071,4 +1071,9 @@ class databox_field implements cache_cacheableInterface
 
         }
     }
+
+    public static function purge()
+    {
+        self::$_instance = [];
+    }
 }

lib/classes/databox/status.php

@@ -587,4 +587,9 @@ class databox_status
 
         return $status;
     }
+
+    public static function purge()
+    {
+        self::$_status = self::$_statuses = [];
+    }
 }

lib/classes/patch/320alpha4b.php

@@ -236,4 +236,9 @@ class patch_320alpha4b implements patchInterface
 
         return $feed;
     }
+
+    public static function purge()
+    {
+        self::$feeds = [];
+    }
 }

lib/classes/thesaurus/xpath.php

@@ -35,4 +35,9 @@ class thesaurus_xpath extends DOMXPath
 
         return(self::$r[$context_path]);
     }
+
+    public static function purge()
+    {
+        self::$r = [];
+    }
 }