Implmented cache group clearing in Memcache engine

cakephp · Mar 26, 2012 · 6f9d2c0 · 6f9d2c0
1 parent d0f7842
commit 6f9d2c0
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Showing 2 changed files with 28 additions and 1 deletion.
diff --git a/lib/Cake/Cache/Engine/MemcacheEngine.php b/lib/Cake/Cache/Engine/MemcacheEngine.php
@@ -262,7 +262,13 @@ public function groups() {
 		return $result;
 	}
 
+/**
+ * Increments the group value to simulate deletion of all keys under a group
+ * old values will remain in sotrage until they expire.
+ *
+ * @return boolean success
+ **/
 	public function clearGroup($group) {
-
+		return (bool) $this->_Memcache->increment($group);
 	}
 }
diff --git a/lib/Cake/Test/Case/Cache/Engine/MemcacheEngineTest.php b/lib/Cake/Test/Case/Cache/Engine/MemcacheEngineTest.php
@@ -451,4 +451,25 @@ public function testGroupDelete() {
 
 		$this->assertFalse(Cache::read('test_groups', 'memcache_groups'));
 	}
+
+/**
+ * Test clearing a cache group
+ *
+ * @return void
+ **/
+	public function testGroupClear() {
+		Cache::config('memcache_groups', array(
+			'engine' => 'Memcache',
+			'duration' => 3600,
+			'groups' => array('group_a', 'group_b')
+		));
+
+		$this->assertTrue(Cache::write('test_groups', 'value', 'memcache_groups'));
+		$this->assertTrue(Cache::clearGroup('group_a', 'memcache_groups'));
+		$this->assertFalse(Cache::read('test_groups', 'memcache_groups'));
+
+		$this->assertTrue(Cache::write('test_groups', 'value2', 'memcache_groups'));
+		$this->assertTrue(Cache::clearGroup('group_b', 'memcache_groups'));
+		$this->assertFalse(Cache::read('test_groups', 'memcache_groups'));
+	}
 }