# Class yii\console\Controller

Inheritance | yii\console\Controller » yii\base\Controller » yii\base\Component » yii\base\BaseObject
Implements | yii\base\Configurable, yii\base\ViewContextInterface
Subclasses | yii\apidoc\commands\ApiController, yii\apidoc\commands\GuideController, yii\apidoc\components\BaseController, yii\console\controllers\AssetController, yii\console\controllers\BaseMigrateController, yii\console\controllers\CacheController, yii\console\controllers\FixtureController, yii\console\controllers\HelpController, yii\console\controllers\MessageController, yii\console\controllers\MigrateController, yii\console\controllers\ServeController, yii\faker\FixtureController, yii\gii\console\GenerateController, yii\mongodb\console\controllers\MigrateController, yii\shell\ShellController
Available since version | 2.0
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/console/Controller.php

Controller is the base class of console command classes.

A console controller consists of one or several actions known as sub-commands. Users call a console command by specifying the corresponding route which identifies a controller action. The `yii` program is used when calling a console command, like the following:

    yii <route> [--param1=value1 --param2 ...]

where `<route>` is a route to a controller action and the params will be populated as properties of a command. See options() for details.

## Public Properties

Hide inherited properties

Property | Type | Description | Defined By
--- | --- | --- | ---
$action | yii\base\Action|null | The action that is currently being executed. | yii\base\Controller
$behaviors | yii\base\Behavior[] | List of behaviors attached to this component. This property is read-only. | yii\base\Component
$color | boolean|null | Whether to enable ANSI color in the output. | yii\console\Controller
$defaultAction | string | The ID of the action that is used when the action ID is not specified in the request. | yii\base\Controller
$help | boolean | Whether to display help information about current command. | yii\console\Controller
$helpSummary | string | This property is read-only. | yii\console\Controller
$id | string | The ID of this controller. | yii\base\Controller
$interactive | boolean | Whether to run the command interactively. | yii\console\Controller
$layout | null|string|false | The name of the layout to be applied to this controller's views. | yii\base\Controller
$module | yii\base\Module | The module that this controller belongs to. | yii\base\Controller
$modules | yii\base\Module[] | All ancestor modules that this controller is located within. This property is read-only. | yii\base\Controller
$passedOptionValues | array | The properties corresponding to the passed options. This property is read-only. | yii\console\Controller
$passedOptions | array | The names of the options passed during execution. This property is read-only. | yii\console\Controller
$request | yii\console\Request |  | yii\console\Controller
$response | yii\console\Response |  | yii\console\Controller
$route | string | The route (module ID, controller ID and action ID) of the current request. This property is read-only. | yii\base\Controller
$silentExitOnException | boolean|null | If true - script finish with `ExitCode::OK` in case of exception. | yii\console\Controller
$uniqueId | string | The controller ID that is prefixed with the module ID (if any). This property is read-only. | yii\base\Controller
$view | yii\base\View|yii\web\View | The view object that can be used to render views or view files. | yii\base\Controller
$viewPath | string | The directory containing the view files for this controller. | yii\base\Controller

## Public Methods

Hide inherited methods

Method | Description | Defined By
--- | --- | ---
__call() | Calls the named method which is not a class method. | yii\base\Component
__clone() | This method is called after the object is created by cloning an existing one. | yii\base\Component
__construct() |  | yii\base\Controller
__get() | Returns the value of a component property. | yii\base\Component
__isset() | Checks if a property is set, i.e. defined and not null. | yii\base\Component
__set() | Sets the value of a component property. | yii\base\Component
__unset() | Sets a component property to be null. | yii\base\Component
actions() | Declares external actions for the controller. | yii\base\Controller
afterAction() | This method is invoked right after an action is executed. | yii\base\Controller
ansiFormat() | Formats a string with ANSI codes. | yii\console\Controller
attachBehavior() | Attaches a behavior to this component. | yii\base\Component
attachBehaviors() | Attaches a list of behaviors to the component. | yii\base\Component
beforeAction() | This method is invoked right before an action is executed. | yii\console\Controller
behaviors() | Returns a list of behaviors that this component should behave as. | yii\base\Component
bindActionParams() | Binds the parameters to the action. | yii\console\Controller
canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\Component
canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\Component
className() | Returns the fully qualified name of this class. | yii\base\BaseObject
confirm() | Asks user to confirm by typing y or n. | yii\console\Controller
createAction() | Creates an action based on the given action ID. | yii\base\Controller
detachBehavior() | Detaches a behavior from the component. | yii\base\Component
detachBehaviors() | Detaches all behaviors from the component. | yii\base\Component
ensureBehaviors() | Makes sure that the behaviors declared in behaviors() are attached to this component. | yii\base\Component
findLayoutFile() | Finds the applicable layout file. | yii\base\Controller
getActionArgsHelp() | Returns the help information for the anonymous arguments for the action. | yii\console\Controller
getActionHelp() | Returns the detailed help information for the specified action. | yii\console\Controller
getActionHelpSummary() | Returns a one-line short summary describing the specified action. | yii\console\Controller
getActionOptionsHelp() | Returns the help information for the options for the action. | yii\console\Controller
getBehavior() | Returns the named behavior object. | yii\base\Component
getBehaviors() | Returns all behaviors attached to this component. | yii\base\Component
getHelp() | Returns help information for this controller. | yii\console\Controller
getHelpSummary() | Returns one-line short summary describing this controller. | yii\console\Controller
getModules() | Returns all ancestor modules of this controller. | yii\base\Controller
getOptionValues() | Returns properties corresponding to the options for the action id Child classes may override this method to specify possible properties. | yii\console\Controller
getPassedOptionValues() | Returns the properties corresponding to the passed options. | yii\console\Controller
getPassedOptions() | Returns the names of valid options passed during execution. | yii\console\Controller
getRoute() | Returns the route of the current request. | yii\base\Controller
getUniqueId() | Returns the unique ID of the controller. | yii\base\Controller
getView() | Returns the view object that can be used to render views or view files. | yii\base\Controller
getViewPath() | Returns the directory containing view files for this controller. | yii\base\Controller
hasEventHandlers() | Returns a value indicating whether there is any handler attached to the named event. | yii\base\Component
hasMethod() | Returns a value indicating whether a method is defined. | yii\base\Component
hasProperty() | Returns a value indicating whether a property is defined for this component. | yii\base\Component
init() | Initializes the object. | yii\base\Controller
isColorEnabled() | Returns a value indicating whether ANSI color is enabled. | yii\console\Controller
off() | Detaches an existing event handler from this component. | yii\base\Component
on() | Attaches an event handler to an event. | yii\base\Component
optionAliases() | Returns option alias names. | yii\console\Controller
options() | Returns the names of valid options for the action (id) An option requires the existence of a public member variable whose name is the option name. | yii\console\Controller
prompt() | Prompts the user for input and validates it. | yii\console\Controller
render() | Renders a view and applies layout if available. | yii\base\Controller
renderContent() | Renders a static string by applying a layout. | yii\base\Controller
renderFile() | Renders a view file. | yii\base\Controller
renderPartial() | Renders a view without applying layout. | yii\base\Controller
run() | Runs a request specified in terms of a route. | yii\base\Controller
runAction() | Runs an action with the specified action ID and parameters. | yii\console\Controller
select() | Gives the user an option to choose from. Giving '?' as an input will show a list of options to choose from and their explanations. | yii\console\Controller
setView() | Sets the view object to be used by this controller. | yii\base\Controller
setViewPath() | Sets the directory that contains the view files. | yii\base\Controller
stderr() | Prints a string to STDERR. | yii\console\Controller
stdout() | Prints a string to STDOUT. | yii\console\Controller
trigger() | Triggers an event. | yii\base\Component

## Protected Methods

Hide inherited methods

Method | Description | Defined By
--- | --- | ---
bindInjectedParams() | Fills parameters based on types and names in action method signature. | yii\base\Controller
getActionMethodReflection() |  | yii\console\Controller
parseDocCommentDetail() | Returns full description from the docblock. | yii\console\Controller
parseDocCommentSummary() | Returns the first line of docblock. | yii\console\Controller
parseDocCommentTags() | Parses the comment block into tags. | yii\console\Controller

## Events

Hide inherited events

Event | Type | Description | Defined By
--- | --- | --- | ---
EVENT_AFTER_ACTION | yii\base\ActionEvent | An event raised right after executing a controller action. | yii\base\Controller
EVENT_BEFORE_ACTION | yii\base\ActionEvent | An event raised right before executing a controller action. | yii\base\Controller

## Constants

Hide inherited constants

Constant | Value | Description | Defined By
--- | --- | --- | ---
EXIT_CODE_ERROR | 1 | Deprecated since 2.0.13. Use yii\console\ExitCode::UNSPECIFIED_ERROR instead. | yii\console\Controller
EXIT_CODE_NORMAL | 0 | Deprecated since 2.0.13. Use yii\console\ExitCode::OK instead. | yii\console\Controller

## Property Details

$color public property

Whether to enable ANSI color in the output. If not set, ANSI color will only be enabled for terminals that support it.

public boolean|null $color = null
$help public property (available since version 2.0.10)

Whether to display help information about current command.

public boolean $help = false
$helpSummary public property

This property is read-only.

public string $helpSummary = null
$interactive public property

Whether to run the command interactively.

public boolean $interactive = true
$passedOptionValues public property

The properties corresponding to the passed options. This property is read-only.

public array $passedOptionValues = null
$passedOptions public property

The names of the options passed during execution. This property is read-only.

public array $passedOptions = null
$request public property
public yii\console\Request $request = null
$response public property
public yii\console\Response $response = null
$silentExitOnException public property (available since version 2.0.36)

If true - script finish with `ExitCode::OK` in case of exception. false - `ExitCode::UNSPECIFIED_ERROR`. Default: `YII_ENV_TEST`

public boolean|null $silentExitOnException = null

## Method Details

ansiFormat() public method

Formats a string with ANSI codes.

You may pass additional parameters using the constants defined in yii\helpers\Console.

Example:

    echo $this->ansiFormat('This will be red and underlined.', Console::FG_RED, Console::UNDERLINE);

public string ansiFormat ( $string )
$string | string | The string to be formatted

beforeAction() public method

This method is invoked right before an action is executed.

The method will trigger the EVENT_BEFORE_ACTION event. The return value of the method will determine whether the action should continue to run.

In case the action should not run, the request should be handled inside of the `beforeAction` code by either providing the necessary output or redirecting the request. Otherwise the response will be empty.

If you override this method, your code should look like the following:

    public function beforeAction($action)
    {
        // your custom code here, if you want the code to run before action filters,
        // which are triggered on the [[EVENT_BEFORE_ACTION]] event, e.g. PageCache or AccessControl

        if (!parent::beforeAction($action)) {
            return false;
        }

        // other custom code here

        return true; // or false to not run the action
    }

public boolean beforeAction ( $action )
$action | yii\base\Action | The action to be executed.
return | boolean | Whether the action should continue to run.

bindActionParams() public method

Binds the parameters to the action.

This method is invoked by yii\base\Action when it begins to run with the given parameters. This method will first bind the parameters with the options available to the action. It then validates the given arguments.

public array bindActionParams ( $action, $params )
$action | yii\base\Action | The action to be bound with parameters
$params | array | The parameters to be bound to the action
return | array | The valid parameters that the action can run with.
throws | yii\console\Exception | if there are unknown options or missing arguments

confirm() public method

Asks user to confirm by typing y or n.

A typical usage looks like the following:

    if ($this->confirm("Are you sure?")) {
        echo "user typed yes\n";
    } else {
        echo "user typed no\n";
    }

public boolean confirm ( $message, $default = false )
$message | string | To echo out before waiting for user input
$default | boolean | This value is returned if no selection is made.
return | boolean | Whether user confirmed. Will return true if $interactive is false.

getActionArgsHelp() public method

Returns the help information for the anonymous arguments for the action.

The returned value should be an array. The keys are the argument names, and the values are the corresponding help information. Each value must be an array of the following structure:

- required: boolean, whether this argument is required.
- type: string, the PHP type of this argument.
- default: string, the default value of this argument
- comment: string, the comment of this argument

The default implementation will return the help information extracted from the doc-comment of the parameters corresponding to the action method.

public array getActionArgsHelp ( $action )
$action | yii\base\Action |
return | array | The help information of the action arguments

getActionHelp() public method

Returns the detailed help information for the specified action.

public string getActionHelp ( $action )
$action | yii\base\Action | Action to get help for
return | string | The detailed help information for the specified action.

getActionHelpSummary() public method

Returns a one-line short summary describing the specified action.

public string getActionHelpSummary ( $action )
$action | yii\base\Action | Action to get summary for
return | string | A one-line short summary describing the specified action.

getActionMethodReflection() protected method

protected ReflectionMethod getActionMethodReflection ( $action )
$action | yii\base\Action |

getActionOptionsHelp() public method

Returns the help information for the options for the action.

The returned value should be an array. The keys are the option names, and the values are the corresponding help information. Each value must be an array of the following structure:

- type: string, the PHP type of this argument.
- default: string, the default value of this argument
- comment: string, the comment of this argument

The default implementation will return the help information extracted from the doc-comment of the properties corresponding to the action options.

public array getActionOptionsHelp ( $action )
$action | yii\base\Action |
return | array | The help information of the action options

getHelp() public method

Returns help information for this controller.

You may override this method to return customized help. The default implementation returns help information retrieved from the PHPDoc comment.

public string getHelp ( )

getHelpSummary() public method

Returns one-line short summary describing this controller.

You may override this method to return customized summary. The default implementation returns first line from the PHPDoc comment.

public string getHelpSummary ( )

getOptionValues() public method

Returns properties corresponding to the options for the action id Child classes may override this method to specify possible properties.

public array getOptionValues ( $actionID )
$actionID | string | The action id of the current request
return | array | Properties corresponding to the options for the action

getPassedOptionValues() public method

Returns the properties corresponding to the passed options.

public array getPassedOptionValues ( )
return | array | The properties corresponding to the passed options

getPassedOptions() public method

Returns the names of valid options passed during execution.

public array getPassedOptions ( )
return | array | The names of the options passed during execution

isColorEnabled() public method

Returns a value indicating whether ANSI color is enabled.

ANSI color is enabled only if $color is set true or is not set and the terminal supports ANSI color.

public boolean isColorEnabled ( $stream = \STDOUT )
$stream | resource | The stream to check.
return | boolean | Whether to enable ANSI style in output.

optionAliases() public method (available since version 2.0.8)

Returns option alias names.

Child classes may override this method to specify alias options.

See also options().

public array optionAliases ( )
return | array | The options alias names valid for the action where the keys is alias name for option and value is option name.

options() public method

Returns the names of valid options for the action (id) An option requires the existence of a public member variable whose name is the option name.

Child classes may override this method to specify possible options.

Note that the values setting via options are not available until beforeAction() is being called.

public string[] options ( $actionID )
$actionID | string | The action id of the current request
return | string[] | The names of the options valid for the action

parseDocCommentDetail() protected method

Returns full description from the docblock.

protected string parseDocCommentDetail ( $reflection )
$reflection | Reflector |

parseDocCommentSummary() protected method

Returns the first line of docblock.

protected string parseDocCommentSummary ( $reflection )
$reflection | Reflector |

parseDocCommentTags() protected method

Parses the comment block into tags.

protected array parseDocCommentTags ( $reflection )
$reflection | Reflector | The comment block
return | array | The parsed tags

prompt() public method

Prompts the user for input and validates it.

public string prompt ( $text, $options = [] )
$text | string | Prompt string
$options | array | The options to validate the input: required: whether it is required or not default: default value if no input is inserted by the user pattern: regular expression pattern to validate user input validator: a callable function to validate input. The function must accept two parameters: $input: the user input to validate $error: the error value passed by reference if validation failed. An example of how to use the prompt method with a validator function.
    $code = $this->prompt('Enter 4-Chars-Pin', ['required' => true, 'validator' => function($input, &$error) {
        if (strlen($input) !== 4) {
            $error = 'The Pin must be exactly 4 chars!';
            return false;
        }
        return true;
    }]);
return | string | The user input

runAction() public method

Runs an action with the specified action ID and parameters.

If the action ID is empty, the method will use $defaultAction.

See also createAction().

public integer runAction ( $id, $params = [] )
$id | string | The ID of the action to be executed.
$params | array | The parameters (name-value pairs) to be passed to the action.
return | integer | The status of the action execution. 0 means normal, other values mean abnormal.
throws | yii\base\InvalidRouteException | if the requested action ID cannot be resolved into an action successfully.
throws | yii\console\Exception | if there are unknown options or missing arguments

select() public method

Gives the user an option to choose from. Giving '?' as an input will show a list of options to choose from and their explanations.

public string select ( $prompt, $options = [] )
$prompt | string | The prompt message
$options | array | Key-value array of options to choose from
return | string | An option character the user chose

stderr() public method

Prints a string to STDERR.

You may optionally format the string with ANSI codes by passing additional parameters using the constants defined in yii\helpers\Console.

Example:

    $this->stderr('This will be red and underlined.', Console::FG_RED, Console::UNDERLINE);

public integer|boolean stderr ( $string )
$string | string | The string to print
return | integer|boolean | Number of bytes printed or false on error

stdout() public method

Prints a string to STDOUT.

You may optionally format the string with ANSI codes by passing additional parameters using the constants defined in yii\helpers\Console.

Example:

    $this->stdout('This will be red and underlined.', Console::FG_RED, Console::UNDERLINE);

public integer|boolean stdout ( $string )
$string | string | The string to print
return | integer|boolean | Number of bytes printed or false on error