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<?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\API;
use Exception;
use Piwik\Common;
use Piwik\DataTable;
use Piwik\Plugin\ProcessedMetric;
use Piwik\Plugin\Report;
class DataTableGenericFilter
{
/**
* List of filter names not to run.
*
* @var string[]
*/
private $disabledFilters = array();
/**
* @var Report
*/
private $report;
/**
* @var array
*/
private $request;
/**
* Constructor
*
* @param $request
*/
public function __construct($request, $report)
{
$this->request = $request;
$this->report = $report;
}
/**
* Filters the given data table
*
* @param DataTable $table
*/
public function filter($table)
{
$this->applyGenericFilters($table);
}
/**
* Makes sure a set of filters are not run.
*
* @param string[] $filterNames The name of each filter to disable.
*/
public function disableFilters($filterNames)
{
$this->disabledFilters = array_unique(array_merge($this->disabledFilters, $filterNames));
}
/**
* Returns an array containing the information of the generic Filter
* to be applied automatically to the data resulting from the API calls.
*
* Order to apply the filters:
* 1 - Filter that remove filtered rows
* 2 - Filter that sort the remaining rows
* 3 - Filter that keep only a subset of the results
* 4 - Presentation filters
*
* @return array See the code for spec
*/
public static function getGenericFiltersInformation()
{
return array(
array('Pattern',
array(
'filter_column' => array('string', 'label'),
'filter_pattern' => array('string')
)),
array('PatternRecursive',
array(
'filter_column_recursive' => array('string', 'label'),
'filter_pattern_recursive' => array('string'),
)),
array('ExcludeLowPopulation',
array(
'filter_excludelowpop' => array('string'),
'filter_excludelowpop_value' => array('float', '0'),
)),
array('Sort',
array(
'filter_sort_column' => array('string'),
'filter_sort_order' => array('string', 'desc'),
$naturalSort = true,
$recursiveSort = true,
'filter_sort_column_secondary' => true
)),
array('Truncate',
array(
'filter_truncate' => array('integer'),
)),
array('Limit',
array(
'filter_offset' => array('integer', '0'),
'filter_limit' => array('integer'),
'keep_summary_row' => array('integer', '0'),
))
);
}
private function getGenericFiltersHavingDefaultValues()
{
$filters = self::getGenericFiltersInformation();
if ($this->report && $this->report->getDefaultSortColumn()) {
foreach ($filters as $index => $filter) {
if ($filter[0] === 'Sort') {
$filters[$index][1]['filter_sort_column'] = array('string', $this->report->getDefaultSortColumn());
$filters[$index][1]['filter_sort_order'] = array('string', $this->report->getDefaultSortOrder());
$callback = $this->report->getSecondarySortColumnCallback();
if (is_callable($callback)) {
$filters[$index][1]['filter_sort_column_secondary'] = $callback;
}
}
}
}
return $filters;
}
/**
* Apply generic filters to the DataTable object resulting from the API Call.
* Disable this feature by setting the parameter disable_generic_filters to 1 in the API call request.
*
* @param DataTable $datatable
* @return bool
*/
protected function applyGenericFilters($datatable)
{
if ($datatable instanceof DataTable\Map) {
$tables = $datatable->getDataTables();
foreach ($tables as $table) {
$this->applyGenericFilters($table);
}
return;
}
$tableDisabledFilters = $datatable->getMetadata(DataTable::GENERIC_FILTERS_TO_DISABLE_METADATA_NAME) ?: [];
$genericFilters = $this->getGenericFiltersHavingDefaultValues();
$filterApplied = false;
foreach ($genericFilters as $filterMeta) {
$filterName = $filterMeta[0];
$filterParams = $filterMeta[1];
$filterParameters = array();
$exceptionRaised = false;
if (in_array($filterName, $this->disabledFilters)
|| in_array($filterName, $tableDisabledFilters)
) {
continue;
}
foreach ($filterParams as $name => $info) {
if (!is_array($info)) {
// hard coded value that cannot be changed via API, see eg $naturalSort = true in 'Sort'
$filterParameters[] = $info;
} else {
// parameter type to cast to
$type = $info[0];
// default value if specified, when the parameter doesn't have a value
$defaultValue = null;
if (isset($info[1])) {
$defaultValue = $info[1];
}
try {
$value = Common::getRequestVar($name, $defaultValue, $type, $this->request);
settype($value, $type);
$filterParameters[] = $value;
} catch (Exception $e) {
$exceptionRaised = true;
break;
}
}
}
if (!$exceptionRaised) {
$datatable->filter($filterName, $filterParameters);
$filterApplied = true;
}
}
return $filterApplied;
}
public function areProcessedMetricsNeededFor($metrics)
{
$columnQueryParameters = array(
'filter_column',
'filter_column_recursive',
'filter_excludelowpop',
'filter_sort_column'
);
foreach ($columnQueryParameters as $queryParamName) {
$queryParamValue = Common::getRequestVar($queryParamName, false, $type = null, $this->request);
if (!empty($queryParamValue)
&& $this->containsProcessedMetric($metrics, $queryParamValue)
) {
return true;
}
}
return false;
}
/**
* @param ProcessedMetric[] $metrics
* @param string $name
* @return bool
*/
private function containsProcessedMetric($metrics, $name)
{
foreach ($metrics as $metric) {
if ($metric instanceof ProcessedMetric
&& $metric->getName() == $name
) {
return true;
}
}
return false;
}
}
|
