Fixed query and schema caching renamings.

framework/caching/DbCache.php

@@ -106,12 +106,11 @@ class DbCache extends Cache
 			->from($this->cacheTableName)
 			->where('id = :id AND (expire = 0 OR expire > :time)', array(':id' => $key, ':time' => time()));
 		$db = $this->getDbConnection();
-		if ($db->queryCachingDuration >= 0) {
+		if ($db->enableQueryCache) {
 			// temporarily disable and re-enable query caching
-			$duration = $db->queryCachingDuration;
-			$db->queryCachingDuration = -1;
+			$db->enableQueryCache = false;
 			$result = $query->createCommand($db)->queryScalar();
-			$db->queryCachingDuration = $duration;
+			$db->enableQueryCache = true;
 			return $result;
 		} else {
 			return $query->createCommand($db)->queryScalar();
@@ -135,11 +134,10 @@ class DbCache extends Cache
 			->andWhere("expire = 0 OR expire > " . time() . ")");
 
 		$db = $this->getDbConnection();
-		if ($db->queryCachingDuration >= 0) {
-			$duration = $db->queryCachingDuration;
-			$db->queryCachingDuration = -1;
+		if ($db->enableQueryCache) {
+			$db->enableQueryCache = false;
 			$rows = $query->createCommand($db)->queryAll();
-			$db->queryCachingDuration = $duration;
+			$db->enableQueryCache = true;
 		} else {
 			$rows = $query->createCommand($db)->queryAll();
 		}

framework/caching/DbDependency.php

@@ -69,12 +69,11 @@ class DbDependency extends Dependency
 	{
 		$db = $this->getDbConnection();
 		$command = $this->query->createCommand($db);
-		if ($db->queryCachingDuration >= 0) {
+		if ($db->enableQueryCache) {
 			// temporarily disable and re-enable query caching
-			$duration = $db->queryCachingDuration;
-			$db->queryCachingDuration = -1;
+			$db->enableQueryCache = false;
 			$result = $command->queryRow();
-			$db->queryCachingDuration = $duration;
+			$db->enableQueryCache = true;
 		} else {
 			$result = $command->queryRow();
 		}

framework/db/Command.php

@@ -405,7 +405,7 @@ class Command extends \yii\base\Component
 			}
 
 			if (isset($cache)) {
-				$cache->set($cacheKey, $result, $db->queryCachingDuration, $db->queryCachingDependency);
+				$cache->set($cacheKey, $result, $db->queryCacheDuration, $db->queryCacheDependency);
 				\Yii::trace('Saved query result in cache', __CLASS__);
 			}
 

framework/db/Driver.php

@@ -95,18 +95,13 @@ abstract class Driver extends \yii\base\Object
 
 		$realName = $db->expandTablePrefix($name);
 
-		// temporarily disable query caching
-		if ($db->queryCachingDuration >= 0) {
-			$qcDuration = $db->queryCachingDuration;
-			$db->queryCachingDuration = -1;
-		}
-
-		if (!in_array($name, $db->schemaCachingExclude, true) && $db->schemaCachingDuration >= 0 && ($cache = \Yii::$application->getComponent($db->schemaCacheID)) !== null) {
+		/** @var $cache \yii\caching\Cache */
+		if ($db->enableSchemaCache && ($cache = \Yii::$application->getComponent($db->schemaCacheID)) !== null && !in_array($name, $db->schemaCacheExclude, true)) {
 			$key = $this->getCacheKey($name);
 			if ($refresh || ($table = $cache->get($key)) === false) {
 				$table = $this->loadTableSchema($realName);
 				if ($table !== null) {
-					$cache->set($key, $table, $db->schemaCachingDuration);
+					$cache->set($key, $table, $db->schemaCacheDuration);
 				}
 			}
 			$this->_tables[$name] = $table;
@@ -114,10 +109,6 @@ abstract class Driver extends \yii\base\Object
 			$this->_tables[$name] = $table = $this->loadTableSchema($realName);
 		}
 
-		if (isset($qcDuration)) { // re-enable query caching
-			$db->queryCachingDuration = $qcDuration;
-		}
-
 		return $table;
 	}
 
@@ -185,7 +176,8 @@ abstract class Driver extends \yii\base\Object
 	public function refresh($tableName = null)
 	{
 		$db = $this->connection;
-		if ($db->schemaCachingDuration >= 0 && ($cache = \Yii::$application->getComponent($db->schemaCacheID)) !== null) {
+		/** @var $cache \yii\caching\Cache */
+		if ($db->enableSchemaCache && ($cache = \Yii::$application->getComponent($db->schemaCacheID)) !== null) {
 			if ($tableName === null) {
 				foreach ($this->_tables as $name => $table) {
 					$cache->delete($this->getCacheKey($name));