$items public property List of items in the nav widget. Each array element represents a single menu item which can be either a string or an array with the following structure: label: string, required, the nav item label. url: optional, the item's URL. Defaults to "#". visible: boolean, optional, whether this menu item is visible. Defaults to true. linkOptions: array, optional, the HTML attributes of the item's link. options: array, optional, the HTML attributes of the item container (LI). a

init() public method Initializes the object. This method is invoked at the end of the constructor after the object is initialized with the given configuration. public void init ( )

$join public property How to join with other tables. Each array element represents the specification of one join which has the following structure: [$joinType, $tableName, $joinCondition] For example, [ ['INNER JOIN', 'user', 'user.id = author_id'], ['LEFT JOIN', 'team', 'team.id = team_id'], ] public array $join = null

$id public property An ID that uniquely identifies this module among other modules which have the same parent. public string $id = null

init() public method Initializes the application component. This method overrides the parent implementation by establishing the database connection. public void init ( )

delete() public method Deletes a value with the specified key from cache public boolean delete ( $key )$key mixed A key identifying the value to be deleted from cache. This can be a simple string or a complex data structure consisting of factors representing the key. return boolean If no error happens during deletion

$select public property The fields of the results to return. For example: ['name', 'group_id'], ['name' => true, '_id' => false]. Unless directly excluded, the "_id" field is always returned. If not set, it means selecting all columns. See also select(). public array $select = []

extractHeaders() public method Extract CORS headers from the request public array extractHeaders ( )return array CORS headers to handle

fromArray() public method (available since version 2.0.3) Populates the cookie collection from an array. public void fromArray ( array $array )$array array The cookies to populate from

updateRule() protected abstract method Updates a rule to the RBAC system. protected abstract boolean updateRule ( $name, $rule )$name string The name of the rule being updated $rule yii\rbac\Rule The updated rule return boolean Whether the rule is successfully updated throws Exception if data validation or saving fails (such as the name of the rule is not unique)