class Ajax in Flot 8

Displays a graph to demonstrate the AJAX capabilities of FLOT.

Hierarchy

• class \Drupal\Core\Controller\ControllerBase implements ContainerInjectionInterface uses LoggerChannelTrait, MessengerTrait, LinkGeneratorTrait, RedirectDestinationTrait, UrlGeneratorTrait, StringTranslationTrait
  • class \Drupal\flot_examples\Controller\Ajax

1 string reference to 'Ajax'

flot_examples.routing.yml in flot_examples/flot_examples.routing.yml

flot_examples/flot_examples.routing.yml

File

flot_examples/src/Controller/Ajax.php, line 11

Namespace

Drupal\flot_examples\Controller

class Ajax extends ControllerBase {

  /**
   * Function realtime.
   */
  public function content() {
    $options = [
      'lines' => [
        'show' => TRUE,
      ],
      'points' => [
        'show' => TRUE,
      ],
      'xaxis' => [
        'tickDecimals' => 0,
        'tickSize' => 1,
      ],
    ];
    $data = array();
    $text = [];
    $text[] = $this
      ->t('Example of loading data dynamically with AJAX. Percentage change in GDP (source: <a href=":one">Eurostat</a>). Click the buttons below:', [
      ':one' => 'http://epp.eurostat.ec.europa.eu/tgm/table.do?tab=table&init=1&plugin=1&language=en&pcode=tsieb020',
    ]);
    $text[] = $this
      ->t('The data is fetched over HTTP, in this case directly from text files. Usually the URL would point to some web server handler (e.g. a PHP page or Java/.NET/Python/Ruby on Rails handler) that extracts it from a database and serializes it to JSON');
    $text[] = [
      'setp' => TRUE,
      0 => [
        '#type' => 'button',
        '#attributes' => [
          'class' => [
            'fetchSeries',
          ],
        ],
        '#value' => $this
          ->t('First dataset'),
      ],
      1 => $this
        ->t('[ <a href=":one">see data</a> ]', [
        ':one' => 'data-eu-gdp-growth/',
      ]),
      2 => [
        '#markup' => '<span></span>',
      ],
    ];
    $text[] = [
      0 => [
        '#type' => 'button',
        '#attributes' => [
          'class' => [
            'fetchSeries',
          ],
        ],
        '#value' => $this
          ->t('Second dataset'),
      ],
      1 => $this
        ->t('[ <a href=":one">see data</a> ]', [
        ':one' => 'data-japan-gdp-growth/',
      ]),
      2 => [
        '#markup' => '<span></span>',
      ],
      'setp' => TRUE,
    ];
    $text[] = [
      0 => [
        '#type' => 'button',
        '#attributes' => [
          'class' => [
            'fetchSeries',
          ],
        ],
        '#value' => $this
          ->t('Third dataset'),
      ],
      1 => $this
        ->t('[ <a href=":one">see data</a> ]', [
        ':one' => 'data-usa-gdp-growth/',
      ]),
      2 => [
        '#markup' => '<span></span>',
      ],
      'setp' => TRUE,
    ];
    $text[] = $this
      ->t('If you combine AJAX with setTimeout, you can poll the server for new data.');
    $text[] = [
      [
        '#type' => 'button',
        '#attributes' => [
          'class' => [
            'dataUpdate',
          ],
        ],
        '#value' => $this
          ->t('Poll for data'),
      ],
      'setp' => TRUE,
    ];
    $output['flot'] = [
      '#type' => 'flot',
      '#theme' => 'flot_examples',
      '#data' => $data,
      '#options' => $options,
      '#text' => $text,
      '#attached' => [
        'library' => [
          'flot_examples/ajax',
        ],
      ],
    ];
    return $output;
  }

  /**
   * Function realtime.
   */
  public function json1($id) {
    $data_set = [
      [
        1999,
        3.0,
      ],
      [
        2000,
        3.9,
      ],
      [
        2001,
        2.0,
      ],
      [
        2002,
        1.2,
      ],
      [
        2003,
        1.3,
      ],
      [
        2004,
        2.5,
      ],
      [
        2005,
        2.0,
      ],
      [
        2006,
        3.1,
      ],
      [
        2007,
        2.9,
      ],
      [
        2008,
        0.9,
      ],
    ];
    $data_slice = array_slice($data_set, 0, $id);
    $data = array(
      'label' => 'Europe (EU27)',
      'data' => $data_slice,
    );
    return new JsonResponse($data);
  }

  /**
   * Function realtime.
   */
  public function json2($id) {
    $data_set = [
      [
        1999,
        -0.1,
      ],
      [
        2000,
        2.9,
      ],
      [
        2001,
        0.2,
      ],
      [
        2002,
        0.3,
      ],
      [
        2003,
        1.4,
      ],
      [
        2004,
        2.7,
      ],
      [
        2005,
        1.9,
      ],
      [
        2006,
        2.0,
      ],
      [
        2007,
        2.3,
      ],
      [
        2008,
        -0.7,
      ],
    ];
    $data_slice = array_slice($data_set, 0, $id);
    $data = array(
      'label' => 'Japan',
      'data' => $data_slice,
    );
    return new JsonResponse($data);
  }

  /**
   * Function realtime.
   */
  public function json3($id) {
    $data_set = [
      [
        1999,
        4.4,
      ],
      [
        2000,
        3.7,
      ],
      [
        2001,
        0.8,
      ],
      [
        2002,
        1.6,
      ],
      [
        2003,
        2.5,
      ],
      [
        2004,
        3.6,
      ],
      [
        2005,
        2.9,
      ],
      [
        2006,
        2.8,
      ],
      [
        2007,
        2.0,
      ],
      [
        2008,
        1.1,
      ],
    ];
    $data_slice = array_slice($data_set, 0, $id);
    $data = array(
      'label' => 'USA',
      'data' => $data_slice,
    );
    return new JsonResponse($data);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
Ajax::content	public	function	Function realtime.
Ajax::json1	public	function	Function realtime.
Ajax::json2	public	function	Function realtime.
Ajax::json3	public	function	Function realtime.
ControllerBase::$configFactory	protected	property	The configuration factory.
ControllerBase::$currentUser	protected	property	The current user service.	1
ControllerBase::$entityFormBuilder	protected	property	The entity form builder.
ControllerBase::$entityManager	protected	property	The entity manager.
ControllerBase::$entityTypeManager	protected	property	The entity type manager.
ControllerBase::$formBuilder	protected	property	The form builder.	2
ControllerBase::$keyValue	protected	property	The key-value storage.	1
ControllerBase::$languageManager	protected	property	The language manager.	1
ControllerBase::$moduleHandler	protected	property	The module handler.	2
ControllerBase::$stateService	protected	property	The state service.
ControllerBase::cache	protected	function	Returns the requested cache bin.
ControllerBase::config	protected	function	Retrieves a configuration object.
ControllerBase::container	private	function	Returns the service container.
ControllerBase::create	public static	function	Instantiates a new instance of this class. Overrides ContainerInjectionInterface::create	40
ControllerBase::currentUser	protected	function	Returns the current user.	1
ControllerBase::entityFormBuilder	protected	function	Retrieves the entity form builder.
ControllerBase::entityManager Deprecated	protected	function	Retrieves the entity manager service.
ControllerBase::entityTypeManager	protected	function	Retrieves the entity type manager.
ControllerBase::formBuilder	protected	function	Returns the form builder service.	2
ControllerBase::keyValue	protected	function	Returns a key/value storage collection.	1
ControllerBase::languageManager	protected	function	Returns the language manager service.	1
ControllerBase::moduleHandler	protected	function	Returns the module handler.	2
ControllerBase::redirect	protected	function	Returns a redirect response object for the specified route. Overrides UrlGeneratorTrait::redirect
ControllerBase::state	protected	function	Returns the state storage service.
LinkGeneratorTrait::$linkGenerator	protected	property	The link generator.	1
LinkGeneratorTrait::getLinkGenerator Deprecated	protected	function	Returns the link generator.
LinkGeneratorTrait::l Deprecated	protected	function	Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator Deprecated	public	function	Sets the link generator service.
LoggerChannelTrait::$loggerFactory	protected	property	The logger channel factory service.
LoggerChannelTrait::getLogger	protected	function	Gets the logger for a specific channel.
LoggerChannelTrait::setLoggerFactory	public	function	Injects the logger channel factory.
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
RedirectDestinationTrait::$redirectDestination	protected	property	The redirect destination service.	1
RedirectDestinationTrait::getDestinationArray	protected	function	Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination	protected	function	Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination	public	function	Sets the redirect destination service.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
UrlGeneratorTrait::$urlGenerator	protected	property	The url generator.
UrlGeneratorTrait::getUrlGenerator Deprecated	protected	function	Returns the URL generator service.
UrlGeneratorTrait::setUrlGenerator Deprecated	public	function	Sets the URL generator service.
UrlGeneratorTrait::url Deprecated	protected	function	Generates a URL or path for a specific route based on the given parameters.