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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Chart functions used to generate various types of charts.
* @package phpMyAdmin
*/
/**
*
*/
define('ERR_NO_GD', 0);
define('ERR_NO_JSON', 1);
require_once './libraries/chart/pma_pchart_pie.php';
require_once './libraries/chart/pma_pchart_single_bar.php';
require_once './libraries/chart/pma_pchart_multi_bar.php';
require_once './libraries/chart/pma_pchart_stacked_bar.php';
require_once './libraries/chart/pma_pchart_single_line.php';
require_once './libraries/chart/pma_pchart_multi_line.php';
require_once './libraries/chart/pma_pchart_single_radar.php';
require_once './libraries/chart/pma_pchart_multi_radar.php';
/**
* Formats a chart for the status page.
* @param array $data data for the status chart
* @return string HTML and JS code for the chart
*/
function PMA_chart_status($data)
{
// format keys which will be shown in the chart
$chartData = array();
foreach($data as $dataKey => $dataValue) {
$key = ucwords(str_replace(array('Com_', '_'), array('', ' '), $dataKey));
$value = (int)$dataValue;
$chartData[$key] = $value;
}
$chart = new PMA_pChart_Pie(
$chartData,
array('titleText' => __('Query statistics'))
);
$chartCode = $chart->toString();
PMA_handle_chart_err($chart->getErrors());
echo $chartCode;
}
/**
* Formats a chart for the profiling page.
* @param array $data data for the status chart
* @return string HTML and JS code for the chart
*/
function PMA_chart_profiling($data)
{
$chartData = array();
foreach($data as $dataValue) {
$value = (int)($dataValue['Duration'] * 1000000);
$key = ucwords($dataValue['Status']);
$chartData[$key] = $value;
}
$chart = new PMA_pChart_Pie(
$chartData,
array('titleText' => __('Query execution time comparison (in microseconds)'))
);
$chartCode = $chart->toString();
PMA_handle_chart_err($chart->getErrors());
echo $chartCode;
}
/**
* Formats a chart for the query results page.
* @param array $data data for the status chart
* @param array $chartSettings settings used to generate the chart
* @return string HTML and JS code for the chart
*/
function PMA_chart_results($data, &$chartSettings)
{
$chartData = array();
$chart = null;
// set default title if not already set
if (empty($chartSettings['titleText'])) {
$chartSettings['titleText'] = __('Query results');
}
// set default type if not already set
if (empty($chartSettings['type'])) {
$chartSettings['type'] = 'bar';
}
// set default type if not already set
if (empty($chartSettings['continuous'])) {
$chartSettings['continuous'] = 'off';
}
// set default bar type if needed
if ($chartSettings['type'] == 'bar' && empty($chartSettings['barType'])) {
$chartSettings['barType'] = 'stacked';
}
// default for legend
$chartSettings['legend'] = false;
// default for muti series
$chartSettings['multi'] = false;
if (!isset($data[0])) {
// empty data
return __('No data found for the chart.');
}
if (count($data[0]) == 1 || count($data[0]) == 2) {
// One or two columns in every row.
// This data is suitable for a simple bar chart.
if ($chartSettings['type'] == 'pie') {
// loop through the rows, data for pie chart has to be formated
// in a different way then in other charts.
foreach ($data as $rowKey => $row) {
$values = array_values($row);
if (count($row) == 1) {
$chartData[$rowKey] = $values[0];
}
else {
$chartData[$values[1]] = $values[0];
}
}
$chartSettings['legend'] = true;
$chart = new PMA_pChart_pie($chartData, $chartSettings);
}
else {
// loop through the rows
foreach ($data as $rowKey => $row) {
// loop through the columns in the row
foreach ($row as $valueKey => $value) {
$chartData[$valueKey][] = $value;
}
// if only one column, we need to add
// placeholder data for x axis
if (count($row) == 1) {
$chartData[''][] = $rowKey;
}
}
switch ($chartSettings['type']) {
case 'bar':
default:
$chart = new PMA_pChart_single_bar($chartData, $chartSettings);
break;
case 'line':
$chart = new PMA_pChart_single_line($chartData, $chartSettings);
break;
case 'radar':
$chart = new PMA_pChart_single_radar($chartData, $chartSettings);
break;
}
}
}
else if (count($data[0]) == 3) {
// Three columns (x axis, y axis, series) in every row.
// This data is suitable for a stacked bar chart.
$chartSettings['multi'] = true;
$keys = array_keys($data[0]);
$yAxisKey = $keys[0];
$xAxisKey = $keys[1];
$seriesKey = $keys[2];
// get all the series labels
$seriesLabels = array();
foreach ($data as $row) {
$seriesLabels[] = $row[$seriesKey];
}
$seriesLabels = array_unique($seriesLabels);
// loop through the rows
$currentXLabel = $data[0][$xAxisKey];
foreach ($data as $row) {
// save the label
// use the same value as the key and the value to get rid of duplicate results
$chartData[$xAxisKey][$row[$xAxisKey]] = $row[$xAxisKey];
// make sure to set value to every serie
$currentSeriesLabel = (string)$row[$seriesKey];
foreach ($seriesLabels as $seriesLabelsValue) {
if ($currentSeriesLabel == $seriesLabelsValue) {
// the value os for this serie
$chartData[$yAxisKey][$seriesLabelsValue][$row[$xAxisKey]] = (int)$row[$yAxisKey];
}
else if (!isset($chartData[$yAxisKey][$seriesLabelsValue][$row[$xAxisKey]])) {
// if the value for this serie is not set, set it to 0
$chartData[$yAxisKey][$seriesLabelsValue][$row[$xAxisKey]] = 0;
}
}
}
$chartSettings['legend'] = true;
// determine the chart type
switch ($chartSettings['type']) {
case 'bar':
default:
// determine the bar chart type
switch ($chartSettings['barType']) {
case 'stacked':
default:
$chart = new PMA_pChart_stacked_bar($chartData, $chartSettings);
break;
case 'multi':
$chart = new PMA_pChart_multi_bar($chartData, $chartSettings);
break;
}
break;
case 'line':
$chart = new PMA_pChart_multi_line($chartData, $chartSettings);
break;
case 'radar':
$chart = new PMA_pChart_multi_radar($chartData, $chartSettings);
break;
}
}
else {
// unknown data format
return '';
}
$chartCode = $chart->toString();
$chartSettings = $chart->getSettings();
$chartErrors = $chart->getErrors();
PMA_handle_chart_err($chartErrors);
return $chartCode;
}
/**
* Simple handler of chart errors.
* @param array $errors all occured errors
*/
function PMA_handle_chart_err($errors)
{
if (in_array(ERR_NO_GD, $errors)) {
PMA_warnMissingExtension('GD', false, __('GD extension is needed for charts.'));
}
else if (in_array(ERR_NO_JSON, $errors)) {
PMA_warnMissingExtension('JSON', false, __('JSON encoder is needed for chart tooltips.'));
}
}
?>
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