[--param1=value1 --param2 ...] * ~~~ * * @author Qiang Xue * @since 2.0 */ class Controller extends \yii\base\Controller { /** * This method is invoked when the request parameters do not satisfy the requirement of the specified action. * The default implementation will throw an exception. * @param Action $action the action being executed * @param Exception $exception the exception about the invalid parameters */ public function invalidActionParams($action, $exception) { echo \Yii::t('yii', 'Error: {message}', array( '{message}' => $exception->getMessage(), )); \Yii::$application->end(1); } /** * This method is invoked when extra parameters are provided to an action while it is executed. * @param Action $action the action being executed * @param array $expected the expected action parameters (name => value) * @param array $actual the actual action parameters (name => value) */ public function extraActionParams($action, $expected, $actual) { unset($expected['args'], $actual['args']); $keys = array_diff(array_keys($actual), array_keys($expected)); if (!empty($keys)) { echo \Yii::t('yii', 'Error: Unknown parameter(s): {params}', array( '{params}' => implode(', ', $keys), )) . "\n"; \Yii::$application->end(1); } } /** * Reads input via the readline PHP extension if that's available, or fgets() if readline is not installed. * * @param string $message to echo out before waiting for user input * @param string $default the default string to be returned when user does not write anything. * Defaults to null, means that default string is disabled. * @return mixed line read as a string, or false if input has been closed */ public function prompt($message, $default = null) { if($default !== null) { $message .= " [$default] "; } else { $message .= ' '; } if(extension_loaded('readline')) { $input = readline($message); if($input !== false) { readline_add_history($input); } } else { echo $message; $input = fgets(STDIN); } if($input === false) { return false; } else { $input = trim($input); return ($input === '' && $default !== null) ? $default : $input; } } /** * Asks user to confirm by typing y or n. * * @param string $message to echo out before waiting for user input * @param boolean $default this value is returned if no selection is made. * @return boolean whether user confirmed */ public function confirm($message, $default = false) { echo $message . ' (yes|no) [' . ($default ? 'yes' : 'no') . ']:'; $input = trim(fgets(STDIN)); return empty($input) ? $default : !strncasecmp($input, 'y', 1); } }