function chart_views_plugin_style_chart::render in Google Chart Tools: Image Charts 6

Same name and namespace in other branches

1. 7 chart_views/views/chart_views_plugin_style_chart.inc \chart_views_plugin_style_chart::render()

Define and display a chart from the grouped values.

File

chart_views/includes/views/chart_views_plugin_style_chart.inc, line 139

Drupal Chart API Views Integration. @Based on the Charts module's Views integration

Class

chart_views_plugin_style_chart

Style plugin to render view as a chart.

Code

function render() {

  // Get chart settings from options form.
  // Get values from rows.

  //drupal_set_message(dprint_r($this->view->field, TRUE));
  foreach ($this
    ->calc_fields() as $calc) {
    foreach ($this->view->result as $row) {
      foreach ($this->view->field as $key => $field) {
        if ($key == $this->options['aggregation_field']) {
          $legend_field = array_key_exists($calc, $this->view->field) ? $this->view->field[$calc] : NULL;
          $legend = !empty($legend_field->options['label']) ? $legend_field->options['label'] : NULL;
          if ($this->options['show_legend']) {
            $data[$calc]['#legend'] = $legend;
          }
          $data[] = $row->{$calc};
          $label = strip_tags(theme_views_view_field($this->view, $this->view->field[$key], $row));
          if ($this->options['values_legend']) {
            $label .= ' ' . $row->{$calc};
          }
          if ($label != $last_label) {
            $labels[] = $label;
            $last_label = $label;
          }
          else {
            $labels[] = '';
          }
          $data_colors[] = chart_unique_color($label);
        }
      }
    }
  }
  $chart['#data'] = $data;
  $chart['#labels'] = $labels;
  $chart['#type'] = $this->options['type'];
  $chart['#chart_id'] = $this->view->name . '-' . $this->display->id;
  $chart['#size']['#width'] = $this->options['width'];
  $chart['#size']['#height'] = $this->options['height'];
  $chart['#data_colors'] = $data_colors;

  //Return the rendered chart.
  return chart_render($chart);
}