function chart_views_plugin_style_chart::render in Google Chart Tools: Image Charts 7

Same name and namespace in other branches

1. 6 chart_views/includes/views/chart_views_plugin_style_chart.inc \chart_views_plugin_style_chart::render()

Render the display in this style.

Overrides views_plugin_style::render

File

chart_views/views/chart_views_plugin_style_chart.inc, line 132

Contains the chart display plugin.

Class

chart_views_plugin_style_chart

The plugin that handles the chart style.

Code

function render() {
  $charts = array();
  $sets = $this
    ->render_grouping($this->view->result, $this->options['grouping']);
  $one = count($sets) == 1;
  $set = 0;
  foreach ($sets as $title => $records) {
    $chart = array(
      '#theme' => 'chart',
      '#chart_id' => drupal_clean_css_identifier($this->view->name . '-' . $this->display->id . '-' . $set++),
      '#type' => $this->options['type'],
      // If only one set then use the view title, otherwise if the set has a
      // title then set it as the chart title.
      '#title' => $one ? $this->view->human_name : $title,
      '#size' => array(
        '#width' => $this->options['width'],
        '#height' => $this->options['height'],
      ),
      '#adjust_resolution' => TRUE,
      '#data' => array(),
      '#labels' => array(),
      '#data_colors' => array(),
      '#shape_markers' => array(),
    );
    foreach ($records as $row_index => $row) {
      foreach ($this->view->field as $key => $field) {
        if (!$field->options['exclude']) {
          $field_value = $field
            ->get_value($row);
          $field_value = isset($field_value[0]['value']) ? $field_value[0]['value'] : 0;

          // this would be nicer in 1 line.
          $chart['#data'][] = $field_value;
          $chart['#labels'][] = $field->options['label'] . ($this->options['label_append_value'] ? ': ' . $field_value : '');

          // @TODO Provide a way to change format.
          $chart['#data_colors'][] = chart_unique_color($key, $this->options['color_scheme']);
        }
      }
    }
    $series = 0;
    foreach ($this->view->field as $key => $field) {
      if (!$field->options['exclude']) {
        if ($this->options['data_markers']) {
          $chart['#shape_markers'][] = array(
            '#marker_type' => 'N*' . $this->options['data_markers_number_type'] . $this->options['data_markers_decimal_places'] . '*',
            '#color' => '000000',
            '#series_index' => $series,
            '#opt_which_points' => -1,
            '#size' => 11,
            '#opt_z_order' => '',
            '#opt_placement' => $this->options['data_markers_placement'],
          );
          $series++;
        }
      }
    }

    // Allow modules to alter the chart based on views context.
    drupal_alter('chart_views', $chart, $this->view->name, $this->display->id);

    // Since view expects string output we can't save render array for later.
    $charts[$chart['#chart_id']] = drupal_render($chart);
  }
  return implode($charts);
}