MessengerInterface.php

Same filename in other branches
  1. 9 core/lib/Drupal/Core/Messenger/MessengerInterface.php
  2. 10 core/lib/Drupal/Core/Messenger/MessengerInterface.php
  3. 11.x core/lib/Drupal/Core/Messenger/MessengerInterface.php

Namespace

Drupal\Core\Messenger

File

core/lib/Drupal/Core/Messenger/MessengerInterface.php

View source
<?php

namespace Drupal\Core\Messenger;


/**
 * Stores runtime messages sent out to individual users on the page.
 *
 * An example for these messages is for example: "Content X got saved".
 */
interface MessengerInterface {
    
    /**
     * A status message.
     */
    const TYPE_STATUS = 'status';
    
    /**
     * A warning.
     */
    const TYPE_WARNING = 'warning';
    
    /**
     * An error.
     */
    const TYPE_ERROR = 'error';
    
    /**
     * Adds a new message to the queue.
     *
     * The messages will be displayed in the order they got added later.
     *
     * @param string|\Drupal\Component\Render\MarkupInterface $message
     *   (optional) The translated message to be displayed to the user. For
     *   consistency with other messages, it should begin with a capital letter
     *   and end with a period.
     * @param string $type
     *   (optional) The message's type. Either self::TYPE_STATUS,
     *   self::TYPE_WARNING, or self::TYPE_ERROR.
     * @param bool $repeat
     *   (optional) If this is FALSE and the message is already set, then the
     *   message won't be repeated. Defaults to FALSE.
     *
     * @return $this
     */
    public function addMessage($message, $type = self::TYPE_STATUS, $repeat = FALSE);
    
    /**
     * Adds a new status message to the queue.
     *
     * @param string|\Drupal\Component\Render\MarkupInterface $message
     *   (optional) The translated message to be displayed to the user. For
     *   consistency with other messages, it should begin with a capital letter
     *   and end with a period.
     * @param bool $repeat
     *   (optional) If this is FALSE and the message is already set, then the
     *   message won't be repeated. Defaults to FALSE.
     *
     * @return $this
     */
    public function addStatus($message, $repeat = FALSE);
    
    /**
     * Adds a new error message to the queue.
     *
     * @param string|\Drupal\Component\Render\MarkupInterface $message
     *   (optional) The translated message to be displayed to the user. For
     *   consistency with other messages, it should begin with a capital letter
     *   and end with a period.
     * @param bool $repeat
     *   (optional) If this is FALSE and the message is already set, then the
     *   message won't be repeated. Defaults to FALSE.
     *
     * @return $this
     */
    public function addError($message, $repeat = FALSE);
    
    /**
     * Adds a new warning message to the queue.
     *
     * @param string|\Drupal\Component\Render\MarkupInterface $message
     *   (optional) The translated message to be displayed to the user. For
     *   consistency with other messages, it should begin with a capital letter
     *   and end with a period.
     * @param bool $repeat
     *   (optional) If this is FALSE and the message is already set, then the
     *   message won't be repeated. Defaults to FALSE.
     *
     * @return $this
     */
    public function addWarning($message, $repeat = FALSE);
    
    /**
     * Gets all messages.
     *
     * @return string[][]|\Drupal\Component\Render\MarkupInterface[][]
     *   Keys are message types and values are indexed arrays of messages. Message
     *   types are either self::TYPE_STATUS, self::TYPE_WARNING, or
     *   self::TYPE_ERROR.
     */
    public function all();
    
    /**
     * Gets all messages of a certain type.
     *
     * @param string $type
     *   The messages' type. Either self::TYPE_STATUS, self::TYPE_WARNING,
     *   or self::TYPE_ERROR.
     *
     * @return string[]|\Drupal\Component\Render\MarkupInterface[]
     *   The messages of given type.
     */
    public function messagesByType($type);
    
    /**
     * Deletes all messages.
     *
     * @return string[]|\Drupal\Component\Render\MarkupInterface[]
     *   The deleted messages.
     */
    public function deleteAll();
    
    /**
     * Deletes all messages of a certain type.
     *
     * @param string $type
     *   The messages' type. Either self::TYPE_STATUS, self::TYPE_WARNING, or
     *   self::TYPE_ERROR.
     *
     * @return string[]|\Drupal\Component\Render\MarkupInterface[]
     *   The deleted messages of given type.
     */
    public function deleteByType($type);

}

Interfaces

Title Deprecated Summary
MessengerInterface Stores runtime messages sent out to individual users on the page.

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.