private function Highcharts::populateData in Charts 5.0.x

Same name and namespace in other branches

1. 8.4 modules/charts_highcharts/src/Plugin/chart/Library/Highcharts.php \Drupal\charts_highcharts\Plugin\chart\Library\Highcharts::populateData()

Utility to populate data.

Parameters

array $element: The element.

array $chart_definition: The chart definition.

Return value

array Return the chart definition.

1 call to Highcharts::populateData()

Highcharts::preRender in modules/charts_highcharts/src/Plugin/chart/Library/Highcharts.php

Pre render.

File

modules/charts_highcharts/src/Plugin/chart/Library/Highcharts.php, line 329

Class

Highcharts

Defines a concrete class for a Highcharts.

Namespace

Drupal\charts_highcharts\Plugin\chart\Library

Code

private function populateData(array &$element, array $chart_definition) {

  /** @var \Drupal\Core\Render\ElementInfoManagerInterface $element_info */
  $element_info = \Drupal::service('element_info');
  $categories = [];
  foreach (Element::children($element) as $key) {
    if ($element[$key]['#type'] === 'chart_xaxis' && !empty($element[$key]['#labels'])) {
      $categories[] = $element[$key]['#labels'];
    }
  }
  foreach (Element::children($element) as $key) {
    if ($element[$key]['#type'] === 'chart_data') {
      $series = [];
      $series_data = [];

      // Make sure defaults are loaded.
      if (empty($element[$key]['#defaults_loaded'])) {
        $element[$key] += $element_info
          ->getInfo($element[$key]['#type']);
      }

      // Convert target named axis keys to integers.
      if (isset($element[$key]['#target_axis'])) {
        $axis_name = $element[$key]['#target_axis'];
        $axis_index = 0;
        foreach (Element::children($element) as $axis_key) {
          if ($element[$axis_key]['#type'] === 'chart_yaxis') {
            if ($axis_key === $axis_name) {
              break;
            }
            $axis_index++;
          }
        }
        $series['yAxis'] = $axis_index;
      }

      // Allow data to provide the labels. This will override the axis.
      // settings.
      if ($element[$key]['#labels'] && $element[$key]['#chart_type'] !== 'scatter') {
        foreach ($element[$key]['#labels'] as $label_index => $label) {
          $series_data[$label_index][0] = $label;
        }
      }

      // Populate the data.
      foreach ($element[$key]['#data'] as $data_index => $data) {
        if (isset($series_data[$data_index])) {
          $series_data[$data_index][] = $data;
        }
        else {
          $series_data[$data_index] = $data;
        }
      }
      $series['type'] = $element[$key]['#chart_type'];
      if ($element['#chart_type'] === 'donut') {

        // Add innerSize to differentiate between donut and pie.
        $series['innerSize'] = '40%';
      }
      $series['name'] = $element[$key]['#title'];
      $series['color'] = $element[$key]['#color'];

      // $series['marker']['radius'] = $element[$key]['#marker_radius'];
      // $series['showInLegend'] = $element[$key]['#show_in_legend'];
      // $series['connectNulls'] = TRUE;
      // $series['tooltip']['valueDecimals'] = $element[$key].
      // ['#decimal_count'];
      // $series['tooltip']['xDateFormat'] = $element[$key]['#date_format'];
      // $series['tooltip']['valuePrefix'] = $element[$key]['#prefix'];
      // $series['tooltip']['valueSuffix'] = $element[$key]['#suffix'];
      if ($element[$key]['#prefix'] || $element[$key]['#suffix']) {
        $yaxis_index = isset($series['yAxis']) ? $series['yAxis'] : 0;

        // For axis formatting, we need to use a format string.
        // See http://docs.highcharts.com/#formatting.
        $decimal_formatting = $element[$key]['#decimal_count'] ? ':.' . $element[$key]['#decimal_count'] . 'f' : '';
        $chart_definition['yAxis'][$yaxis_index]['labels']['format'] = $element[$key]['#prefix'] . "{value{$decimal_formatting}}" . $element[$key]['#suffix'];
      }

      // Remove unnecessary keys to trim down the resulting JS settings.
      ChartElement::trimArray($series);

      // If you want a different type of scatter.
      if (!empty($element['#alternative_scatter'])) {
        $series = $series_data;
      }
      else {
        $series['data'] = $series_data;
      }

      // Merge in series raw options.
      if (!empty($element[$key]['#raw_options'])) {
        $series = NestedArray::mergeDeepArray([
          $element[$key]['#raw_options'],
          $series,
        ]);
      }

      // Add the series to the main chart definition.
      // Scatter colors adjustment.
      if (!empty($element['#alternative_scatter'])) {
        $chart_definition['series'] = $series;
      }
      else {
        $chart_definition['series'][$key] = $series;
      }

      // Merge in any point-specific data points.
      foreach (Element::children($element[$key]) as $sub_key) {
        if ($element[$key][$sub_key]['#type'] === 'chart_data_item') {

          // Make sure defaults are loaded.
          if (empty($element[$key][$sub_key]['#defaults_loaded'])) {
            $element[$key][$sub_key] += $element_info
              ->getInfo($element[$key][$sub_key]['#type']);
          }
          $data_item = $element[$key][$sub_key];
          $series_point =& $chart_definition['series'][$key]['data'][$sub_key];

          // Convert the point from a simple data value to a complex point.
          if (!isset($series_point['data'])) {
            $data = $series_point;
            $series_point = [];
            if (is_array($data)) {
              $series_point['name'] = $data[0];
              $series_point['y'] = $data[1];
            }
            else {
              $series_point['y'] = $data;
            }
          }
          if (isset($data_item['#data'])) {
            if (is_array($data_item['#data'])) {
              $series_point['x'] = $data_item['#data'][0];
              $series_point['y'] = $data_item['#data'][1];
            }
            else {
              $series_point['y'] = $data_item['#data'];
            }
          }
          if ($data_item['#title']) {
            $series_point['name'] = $data_item['#title'];
          }

          // Setting the color requires several properties for consistency.
          $series_point['color'] = $data_item['#color'];
          $series_point['fillColor'] = $data_item['#color'];
          $series_point['states']['hover']['fillColor'] = $data_item['#color'];
          $series_point['states']['select']['fillColor'] = $data_item['#color'];
          ChartElement::trimArray($series_point);

          // Merge in point raw options.
          if (!empty($data_item['#raw_options'])) {
            $series_point = NestedArray::mergeDeepArray([
              $data_item['#raw_options'],
              $series_point,
            ]);
          }
        }
      }
    }
  }
  return $chart_definition;
}