one() public method Executes query and returns a single row of result. public yii\db\ActiveRecord|array|null one ( $db = null )$db yii\db\Connection The DB connection used to create the DB command. If null, the DB connection returned by $modelClass will be used. return yii\db\ActiveRecord|array|null A single row of query result. Depending on the setting of asArray(), the query result may be either an array or an ActiveRecord object. Null will be returned if the query results in nothi

removeItem() protected method Removes an auth item from the RBAC system. protected boolean removeItem ( $item )$item yii\rbac\Item The item to remove return boolean Whether the role or permission is successfully removed throws Exception if data validation or saving fails (such as the name of the role or permission is not unique)

$flashParam public property The name of the session variable that stores the flash message data. public string $flashParam = '__flash'

writeString() protected method Writes a string. protected integer writeString ( $fileHandle, $string )$fileHandle resource To write to $string string To be written return integer How many bytes are written

$formatter public property The formatter used to format model attribute values into displayable texts. This can be either an instance of yii\i18n\Formatter or an configuration array for creating the yii\i18n\Formatter instance. If this property is not set, the formatter application component will be used. public array|yii\i18n\Formatter $formatter = null

buildCommentString() protected method Builds the comment specification for the column. protected string buildCommentString ( )return string A string containing the COMMENT keyword and the comment itself

buildGroupBy() public method public string buildGroupBy ( $columns, &$params )$columns array $params array The binding parameters to be populated return string The GROUP BY clause

$attribute public property The attribute or list of attributes whose value will be converted into a slug public string|array $attribute = null

getSwiftMailer() public method public array|\Swift_Mailer getSwiftMailer ( )return array|\Swift_Mailer Swift mailer instance or array configuration.

$options public property The HTML attributes for the widget container tag. The following special options are recognized: tag: string, defaults to "div", the tag name of the container tag of this widget. See also yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered. public array $options = []