Removed "MAGE" cache tag (OpenMage#3246)

Author: fballiano

app/code/core/Mage/Admin/Model/Resource/Block.php

@@ -70,7 +70,7 @@ protected function _generateCache()
         Mage::app()->saveCache(
             Mage::helper('core')->jsonEncode($data),
             self::CACHE_ID,
-            [Mage_Core_Model_App::CACHE_TAG]
+            [Mage_Core_Model_Resource_Db_Collection_Abstract::CACHE_TAG]
         );
     }
 

app/code/core/Mage/Admin/Model/Resource/Variable.php

@@ -38,7 +38,7 @@ protected function _generateCache()
         Mage::app()->saveCache(
             Mage::helper('core')->jsonEncode($data),
             self::CACHE_ID,
-            [Mage_Core_Model_App::CACHE_TAG]
+            [Mage_Core_Model_Resource_Db_Collection_Abstract::CACHE_TAG]
         );
     }
 

app/code/core/Mage/Core/Model/App.php

@@ -36,12 +36,6 @@ class Mage_Core_Model_App
 
     public const DISTRO_LOCALE_CODE = 'en_US';
 
-    /**
-     * Cache tag for all cache data exclude config cache
-     *
-     */
-    public const CACHE_TAG = 'MAGE';
-
     /**
      * Default store Id (for install)
      */

app/code/core/Mage/Core/Model/Cache.php

@@ -381,12 +381,6 @@ public function save($data, $id, $tags = [], $lifeTime = null)
             return true;
         }
 
-        /**
-         * Add global magento cache tag to all cached data exclude config cache
-         */
-        if (!in_array(Mage_Core_Model_Config::CACHE_TAG, $tags)) {
-            $tags[] = Mage_Core_Model_App::CACHE_TAG;
-        }
         return $this->getFrontend()->save((string)$data, $this->_id($id), $this->_tags($tags), $lifeTime);
     }
 
@@ -427,8 +421,7 @@ public function clean($tags = [])
             }
             $res = $this->getFrontend()->clean($mode, $this->_tags($tags));
         } else {
-            $res = $this->getFrontend()->clean($mode, [Mage_Core_Model_App::CACHE_TAG]);
-            $res = $res && $this->getFrontend()->clean($mode, [Mage_Core_Model_Config::CACHE_TAG]);
+            $this->flush();
         }
         return $res;
     }

app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php

@@ -687,7 +687,6 @@ protected function _saveCache($data, $select)
     protected function _getCacheTags()
     {
         $tags = parent::_getCacheTags();
-        $tags[] = Mage_Core_Model_App::CACHE_TAG;
         $tags[] = self::CACHE_TAG;
         return $tags;
     }