$cache public property The cache object or the application component ID of the cache object. The session data will be stored using this cache object. After the CacheSession object is created, if you want to change this property, you should only assign it with a cache object. Starting from version 2.0.2, this can also be a configuration array for creating the object. public yii\caching\Cache|array|string $cache = 'cache'

dropCommentFromTable() public method (available since version 2.0.8) Builds a SQL command for adding comment to table public string dropCommentFromTable ( $table )$table string The table whose column is to be commented. The table name will be properly quoted by the method. return string The SQL statement for adding comment on column

$context public property The context under which the renderFile() method is being invoked. public yii\base\ViewContextInterface $context = null

resetCollection() protected method Removes all existing data from the specified collection and resets sequence number if any. This method is called before populating fixture data into the collection associated with this fixture. protected void resetCollection ( )

generateDependencyData() protected method Generates the data needed to determine if dependency has been changed. This method returns the file's last modification time. protected mixed generateDependencyData ( $cache )$cache yii\caching\Cache The cache component that is currently evaluating this dependency return mixed The data needed to determine if dependency has been changed. throws yii\base\InvalidConfigException if $fileName is not set

$message public property User-defined error message is used when validation fails due to the wrong IP address format. You may use the following placeholders in the message: {attribute}: the label of the attribute being validated {value}: the value of the attribute being validated public string $message = null

removeChild() public method Removes a child from its parent. Note, the child item is not deleted. Only the parent-child relationship is removed. public boolean removeChild ( $parent, $child )$parent yii\rbac\Item $child yii\rbac\Item return boolean Whether the removal is successful

$params public property Additional parameters that are passed to the validation method public mixed $params = null

prepareKeys() protected method Prepares the keys associated with the currently available data models. protected array prepareKeys ( $models )$models array The available data models return array The keys

getElapsedTime() public method Returns the total elapsed time since the start of the current request. This method calculates the difference between now and the timestamp defined by constant YII_BEGIN_TIME which is evaluated at the beginning of yii\BaseYii class file. public float getElapsedTime ( )return float The total elapsed time in seconds for current request.