public function FlotBlock::build in Flot 8

Builds and returns the renderable array for this block plugin.

If a block should not be rendered because it has no content, then this method must also ensure to return no content: it must then only return an empty array, or an empty array with #cache set (with cacheability metadata indicating the circumstances for it being empty).

Return value

array A renderable array representing the content of the block.

Overrides BlockPluginInterface::build

See also

\Drupal\block\BlockViewBuilder

File

src/Plugin/Block/FlotBlock.php, line 22

Class

FlotBlock

Provides Flot Block.

Namespace

Drupal\flot\Plugin\Block

Code

public function build() {

  //ToDo:

  //Add custom element id.
  $settings = $this
    ->getConfiguration();
  $data = $settings['flot_block_settings']['data'];
  $series = [];
  foreach ($data as $series_data) {
    $series[] = [
      'data' => json_decode($series_data),
    ];
  }
  $options = [];
  if ($settings['flot_block_type'] == 1) {
    $options = [
      'bars' => [
        'show' => TRUE,
      ],
    ];
  }
  $output['flot'] = [
    '#type' => 'flot',
    '#data' => $series,
    '#options' => $options,
  ];
  return $output;
}