icingaweb2/library/Icinga/Data/PivotTable.php

398 lines
11 KiB
PHP

<?php
/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
namespace Icinga\Data;
use Icinga\Data\Filter\Filter;
use Icinga\Application\Icinga;
use Icinga\Web\Paginator\Adapter\QueryAdapter;
use Zend_Paginator;
class PivotTable implements Sortable
{
/**
* The query to fetch as pivot table
*
* @var SimpleQuery
*/
protected $baseQuery;
/**
* X-axis pivot column
*
* @var string
*/
protected $xAxisColumn;
/**
* Y-axis pivot column
*
* @var string
*/
protected $yAxisColumn;
/**
* Column for sorting the result set
*
* @var array
*/
protected $order = array();
/**
* The filter being applied on the query for the x-axis
*
* @var Filter
*/
protected $xAxisFilter;
/**
* The filter being applied on the query for the y-axis
*
* @var Filter
*/
protected $yAxisFilter;
/**
* The query to fetch the leading x-axis rows and their headers
*
* @var SimpleQuery
*/
protected $xAxisQuery;
/**
* The query to fetch the leading y-axis rows and their headers
*
* @var SimpleQuery
*/
protected $yAxisQuery;
/**
* X-axis header column
*
* @var string|null
*/
protected $xAxisHeader;
/**
* Y-axis header column
*
* @var string|null
*/
protected $yAxisHeader;
/**
* Create a new pivot table
*
* @param SimpleQuery $query The query to fetch as pivot table
* @param string $xAxisColumn X-axis pivot column
* @param string $yAxisColumn Y-axis pivot column
*/
public function __construct(SimpleQuery $query, $xAxisColumn, $yAxisColumn)
{
$this->baseQuery = $query;
$this->xAxisColumn = $xAxisColumn;
$this->yAxisColumn = $yAxisColumn;
}
/**
* {@inheritdoc}
*/
public function getOrder()
{
return $this->order;
}
/**
* {@inheritdoc}
*/
public function hasOrder()
{
return ! empty($this->order);
}
/**
* {@inheritdoc}
*/
public function order($field, $direction = null)
{
$this->order[$field] = $direction;
return $this;
}
/**
* Set the filter to apply on the query for the x-axis
*
* @param Filter $filter
*
* @return $this
*/
public function setXAxisFilter(Filter $filter = null)
{
$this->xAxisFilter = $filter;
return $this;
}
/**
* Set the filter to apply on the query for the y-axis
*
* @param Filter $filter
*
* @return $this
*/
public function setYAxisFilter(Filter $filter = null)
{
$this->yAxisFilter = $filter;
return $this;
}
/**
* Get the x-axis header
*
* Defaults to {@link $xAxisColumn} in case no x-axis header has been set using {@link setXAxisHeader()}
*
* @return string
*/
public function getXAxisHeader()
{
return $this->xAxisHeader !== null ? $this->xAxisHeader : $this->xAxisColumn;
}
/**
* Set the x-axis header
*
* @param string $xAxisHeader
*
* @return $this
*/
public function setXAxisHeader($xAxisHeader)
{
$this->xAxisHeader = (string) $xAxisHeader;
return $this;
}
/**
* Get the y-axis header
*
* Defaults to {@link $yAxisColumn} in case no x-axis header has been set using {@link setYAxisHeader()}
*
* @return string
*/
public function getYAxisHeader()
{
return $this->yAxisHeader !== null ? $this->yAxisHeader : $this->yAxisColumn;
}
/**
* Set the y-axis header
*
* @param string $yAxisHeader
*
* @return $this
*/
public function setYAxisHeader($yAxisHeader)
{
$this->yAxisHeader = (string) $yAxisHeader;
return $this;
}
/**
* Return the value for the given request parameter
*
* @param string $axis The axis for which to return the parameter ('x' or 'y')
* @param string $param The parameter name to return
* @param int $default The default value to return
*
* @return int
*/
protected function getPaginationParameter($axis, $param, $default = null)
{
$request = Icinga::app()->getRequest();
$value = $request->getParam($param, '');
if (strpos($value, ',') > 0) {
$parts = explode(',', $value, 2);
return intval($parts[$axis === 'x' ? 0 : 1]);
}
return $default !== null ? $default : 0;
}
/**
* Query horizontal (x) axis
*
* @return SimpleQuery
*/
protected function queryXAxis()
{
if ($this->xAxisQuery === null) {
$this->xAxisQuery = clone $this->baseQuery;
$this->xAxisQuery->clearGroupingRules();
$xAxisHeader = $this->getXAxisHeader();
$columns = array($this->xAxisColumn, $xAxisHeader);
$this->xAxisQuery->group(array_unique($columns)); // xAxisColumn and header may be the same column
$this->xAxisQuery->columns($columns);
if ($this->xAxisFilter !== null) {
$this->xAxisQuery->addFilter($this->xAxisFilter);
}
$this->xAxisQuery->order(
$xAxisHeader,
isset($this->order[$xAxisHeader]) ? $this->order[$xAxisHeader] : self::SORT_ASC
);
}
return $this->xAxisQuery;
}
/**
* Query vertical (y) axis
*
* @return SimpleQuery
*/
protected function queryYAxis()
{
if ($this->yAxisQuery === null) {
$this->yAxisQuery = clone $this->baseQuery;
$this->yAxisQuery->clearGroupingRules();
$yAxisHeader = $this->getYAxisHeader();
$columns = array($this->yAxisColumn, $yAxisHeader);
$this->yAxisQuery->group(array_unique($columns)); // yAxisColumn and header may be the same column
$this->yAxisQuery->columns($columns);
if ($this->yAxisFilter !== null) {
$this->yAxisQuery->addFilter($this->yAxisFilter);
}
$this->yAxisQuery->order(
$yAxisHeader,
isset($this->order[$yAxisHeader]) ? $this->order[$yAxisHeader] : self::SORT_ASC
);
}
return $this->yAxisQuery;
}
/**
* Return a pagination adapter for the x-axis query
*
* $limit and $page are taken from the current request if not given.
*
* @param int $limit The maximum amount of entries to fetch
* @param int $page The page to set as current one
*
* @return Zend_Paginator
*/
public function paginateXAxis($limit = null, $page = null)
{
if ($limit === null || $page === null) {
if ($limit === null) {
$limit = $this->getPaginationParameter('x', 'limit', 20);
}
if ($page === null) {
$page = $this->getPaginationParameter('x', 'page', 1);
}
}
$query = $this->queryXAxis();
$query->limit($limit, $page > 0 ? ($page - 1) * $limit : 0);
$paginator = new Zend_Paginator(new QueryAdapter($query));
$paginator->setItemCountPerPage($limit);
$paginator->setCurrentPageNumber($page);
return $paginator;
}
/**
* Return a pagination adapter for the y-axis query
*
* $limit and $page are taken from the current request if not given.
*
* @param int $limit The maximum amount of entries to fetch
* @param int $page The page to set as current one
*
* @return Zend_Paginator
*/
public function paginateYAxis($limit = null, $page = null)
{
if ($limit === null || $page === null) {
if ($limit === null) {
$limit = $this->getPaginationParameter('y', 'limit', 20);
}
if ($page === null) {
$page = $this->getPaginationParameter('y', 'page', 1);
}
}
$query = $this->queryYAxis();
$query->limit($limit, $page > 0 ? ($page - 1) * $limit : 0);
$paginator = new Zend_Paginator(new QueryAdapter($query));
$paginator->setItemCountPerPage($limit);
$paginator->setCurrentPageNumber($page);
return $paginator;
}
/**
* Return the pivot table as an array of pivot data and pivot header
*
* @return array
*/
public function toArray()
{
if (
($this->xAxisFilter === null && $this->yAxisFilter === null)
|| ($this->xAxisFilter !== null && $this->yAxisFilter !== null)
) {
$xAxis = $this->queryXAxis()->fetchPairs();
$yAxis = $this->queryYAxis()->fetchPairs();
$xAxisKeys = array_keys($xAxis);
$yAxisKeys = array_keys($yAxis);
} else {
if ($this->xAxisFilter !== null) {
$xAxis = $this->queryXAxis()->fetchPairs();
$xAxisKeys = array_keys($xAxis);
$yAxis = $this->queryYAxis()->where($this->xAxisColumn, $xAxisKeys)->fetchPairs();
$yAxisKeys = array_keys($yAxis);
} else { // $this->yAxisFilter !== null
$yAxis = $this->queryYAxis()->fetchPairs();
$yAxisKeys = array_keys($yAxis);
$xAxis = $this->queryXAxis()->where($this->yAxisColumn, $yAxisKeys)->fetchPairs();
$xAxisKeys = array_keys($xAxis);
}
}
$pivotData = array();
$pivotHeader = array(
'cols' => $xAxis,
'rows' => $yAxis
);
if (! empty($xAxis) && ! empty($yAxis)) {
$this->baseQuery
->where($this->xAxisColumn, array_map(
function($key) {
return (string) $key;
},
$xAxisKeys
))
->where($this->yAxisColumn, array_map(
function($key) {
return (string) $key;
},
$yAxisKeys
));
foreach ($yAxisKeys as $yAxisKey) {
foreach ($xAxisKeys as $xAxisKey) {
$pivotData[$yAxisKey][$xAxisKey] = null;
}
}
foreach ($this->baseQuery as $row) {
$pivotData[$row->{$this->yAxisColumn}][$row->{$this->xAxisColumn}] = $row;
}
}
return array($pivotData, $pivotHeader);
}
}