protected function Xls::extractHeaders in Excel Serialization 8

Extract the headers from the data array.

Parameters

array $data: The data array.

array $context: The context options array.

Return value

string[] An array of headers to be used.

2 calls to Xls::extractHeaders()

Xls::encode in src/Encoder/Xls.php

Encodes data into the given format.

Xls::setHeaders in src/Encoder/Xls.php

Set sheet headers.

File

src/Encoder/Xls.php, line 298

Class

Xls

Adds XLS encoder support for the Serialization API.

Namespace

Drupal\xls_serialization\Encoder

Code

protected function extractHeaders(array $data, array $context) {
  $headers = [];
  if ($first_row = reset($data)) {
    if (isset($context['header'])) {
      $headers = $context['header'];
    }
    elseif (isset($context['views_style_plugin'])) {

      /** @var \Drupal\views\ViewExecutable $view */
      $view = $context['views_style_plugin']->view;
      $fields = $view->field;
      foreach ($first_row as $key => $value) {
        $headers[] = !empty($fields[$key]->options['label']) ? $fields[$key]->options['label'] : $key;
      }
    }
    else {
      $headers = array_keys($first_row);
    }
  }
  return $headers;
}