1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Plugins\PagePerformance\JqplotDataGenerator;
use Piwik\DataTable;
use Piwik\Period;
use Piwik\Plugins\CoreVisualizations\JqplotDataGenerator;
/**
* Generates JQPlot JSON data/config for evolution graphs.
*/
class StackedBarEvolution extends JqplotDataGenerator\Evolution
{
public function generate($dataTable)
{
$visualization = new Chart();
if ($dataTable->getRowsCount() > 0) {
$dataTable->applyQueuedFilters();
$this->initChartObjectData($dataTable, $visualization);
}
return $visualization->render();
}
/**
* @param DataTable|DataTable\Map $dataTable
* @param Chart $visualization
*/
protected function initChartObjectData($dataTable, $visualization)
{
// if the loaded datatable is a simple DataTable, it is most likely a plugin plotting some custom data
// we don't expect plugin developers to return a well defined Set
if ($dataTable instanceof DataTable) {
parent::initChartObjectData($dataTable, $visualization);
return;
}
$dataTables = $dataTable->getDataTables();
// determine x labels based on both the displayed date range and the compared periods
/** @var Period[][] $xLabels */
$xLabels = [
[], // placeholder for first series
];
$this->addSelectedSeriesXLabels($xLabels, $dataTables);
$columnsToDisplay = array_values($this->properties['columns_to_display']);
// collect series data to show. each row-to-display/column-to-display permutation creates a series.
$allSeriesData = array();
foreach ($columnsToDisplay as $column) {
$allSeriesData[] = $this->getSeriesData($column, $dataTable);
}
$visualization->dataTable = $dataTable;
$visualization->properties = $this->properties;
$seriesLabels = [];
foreach ($columnsToDisplay as $columnName) {
$seriesLabels[] = [
'internalLabel' => $columnName,
'label' => @$this->properties['translations'][$columnName] ?: $columnName
];
}
$visualization->setAxisYValues($allSeriesData, $seriesLabels);
$visualization->setAxisYUnits($this->getUnitsForColumnsToDisplay());
$xLabelStrs = [];
$xAxisTicks = [];
foreach ($xLabels as $index => $seriesXLabels) {
$xLabelStrs[$index] = array_map(function (Period $p) { return $p->getLocalizedLongString(); }, $seriesXLabels);
$xAxisTicks[$index] = array_map(function (Period $p) { return $p->getLocalizedShortString(); }, $seriesXLabels);
}
$visualization->setAxisXLabelsMultiple($xLabelStrs, [], $xAxisTicks);
}
private function getSeriesData($column, DataTable\Map $dataTable)
{
$seriesData = array();
foreach ($dataTable->getDataTables() as $childTable) {
$row = $childTable->getFirstRow();
// get series data point. defaults to 0 if no row or no column value.
if ($row === false) {
$seriesData[] = 0;
} else {
$seriesData[] = $row->getColumn($column) ? : 0;
}
}
return $seriesData;
}
}
|
