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class Visitors in Flot 8

Demonstrate using two plots to control zooming in and out.

Hierarchy

Expanded class hierarchy of Visitors

1 string reference to 'Visitors'
flot_examples.routing.yml in flot_examples/flot_examples.routing.yml
flot_examples/flot_examples.routing.yml

File

flot_examples/src/Controller/Visitors.php, line 10

Namespace

Drupal\flot_examples\Controller
View source
class Visitors extends ControllerBase {

  /**
   * Visitors.
   */
  public function content() {
    $d = $this::getData('VisitorData.txt');

    // First correct the timestamps - they are recorded as the daily
    // midnights in UTC+0100, but Flot always displays dates in UTC
    // so we have to add one hour to hit the midnights in the plot.
    for ($i = 0; $i < count($d); $i++) {
      $d[$i][0] += 60 * 60 * 1000;
    }
    $options_p = [
      'xaxis' => [
        'mode' => "time",
        'tickLength' => 5,
      ],
      'selection' => [
        'mode' => "x",
      ],
    ];
    $options_o = [
      'series' => [
        'lines' => [
          'show' => TRUE,
          'lineWidth' => 1,
        ],
        'shadowSize' => 0,
      ],
      'xaxis' => [
        'ticks' => [],
        'mode' => "time",
      ],
      'yaxis' => [
        'ticks' => [],
        'min' => 0,
        'autoscaleMargin' => 0.1,
      ],
      'selection' => [
        'mode' => "x",
      ],
    ];
    $text = [];
    $text[] = $this
      ->t('This plot shows visitors per day to the Flot homepage, with weekends colored.');
    $text[] = $this
      ->t('The smaller plot is linked to the main plot, so it acts as an overview. Try dragging a selection on either plot, and watch the behavior of the other.');
    $output[] = [
      '#type' => 'flot_overview',
      '#theme' => 'flot_examples_visitors',
      '#text' => $text,
      '#options' => $options_p,
      '#options2' => $options_o,
      '#data' => [
        $d,
      ],
    ];
    return $output;
  }

  /**
   * Fetch the data from the raw text file.
   */
  private function getData($filename) {
    $file_path = DRUPAL_ROOT . '/' . drupal_get_path('module', 'flot_examples') . '/src/Controller/' . $filename;
    $file = fopen($file_path, "r") or die("Unable to open file: {$file_path}");
    $data = [];
    while (!feof($file)) {
      $line = fgets($file);
      $values = explode(', ', $line);
      if (count($values) == 2) {
        $data[] = [
          $values[0],
          $values[1],
        ];
      }
    }
    fclose($file);
    return $data;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
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.
Visitors::content public function Visitors.
Visitors::getData private function Fetch the data from the raw text file.