charts_google.module in Charts 8

Charts module integration with Google Charts library.

File

modules/charts_google/charts_google.module

<?php

/**
 * @file
 * Charts module integration with Google Charts library.
 */
use Drupal\charts_google\Settings\Google\GoogleOptions;
use Drupal\charts_google\Settings\Google\ChartType;
use Drupal\charts_google\Settings\Google\ChartArea;

/**
 * Implements hook_charts_info().
 */
function charts_google_charts_info() {
  $info['google'] = array(
    'label' => t('Google Charts'),
    'render' => '_charts_google_render',
    'types' => array(
      'area',
      'bar',
      'column',
      'line',
      'pie',
      'scatter',
    ),
    'file' => 'charts_google.inc',
  );
  return $info;
}

/**
 * Creates a JSON Object formatted for Google charts to use
 * @param array $categories
 * @param array $seriesData
 *
 * @return json|string
 */
function charts_google_render_charts($categories = array(), $seriesData = array()) {
  $dataTable = array();
  $dataTableHeader = array();
  for ($r = 0; $r < count($seriesData); $r++) {
    array_push($dataTableHeader, $seriesData[$r]['name']);
  }
  for ($j = 0; $j < count($categories); $j++) {
    $rowDataTable = [];
    for ($i = 0; $i < count($seriesData); $i++) {
      $rowDataTabletemp = $seriesData[$i]['data'][$j];
      array_push($rowDataTable, $rowDataTabletemp);
    }
    array_unshift($rowDataTable, $categories[$j]);
    array_push($dataTable, $rowDataTable);
  }
  $dataTableHeader = array();
  for ($r = 0; $r < count($seriesData); $r++) {
    array_push($dataTableHeader, $seriesData[$r]['name']);
  }
  array_unshift($dataTableHeader, 'label');
  array_unshift($dataTable, $dataTableHeader);
  return json_encode($dataTable);
}

/**
 * @param $options
 * @param array $seriesData
 * @return GoogleOptions object with chart options or settings to be used by google visualization framework
 */
function charts_google_create_charts_options($options, $seriesData = array()) {
  $googleOptions = new GoogleOptions();
  $googleOptions
    ->setTitle($options['title']);
  $chartArea = new ChartArea();
  $chartArea
    ->setWidth(400);

  // $googleOptions->setChartArea($chartArea);
  $seriesColors = array();
  for ($i = 0; $i < count($seriesData); $i++) {
    $seriesColor = $seriesData[$i]['color'];
    array_push($seriesColors, $seriesColor);
  }
  $googleOptions
    ->setColors($seriesColors);
  return $googleOptions;
}

/**
 * @param $options
 * @return ChartType
 */
function charts_google_create_chart_type($options) {
  $googleChartType = new ChartType();
  $googleChartType
    ->setChartType($options['type']);
  return $googleChartType;
}

Functions

Name	Description
charts_google_charts_info	Implements hook_charts_info().
charts_google_create_charts_options
charts_google_create_chart_type
charts_google_render_charts	Creates a JSON Object formatted for Google charts to use