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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\Archive;
use Piwik\DataTable;
use Piwik\DataTable\Row;
use Piwik\Segment;
use Piwik\Site;
/**
* Creates a DataTable or Set instance based on an array
* index created by DataCollection.
*
* This class is only used by DataCollection.
*/
class DataTableFactory
{
const TABLE_METADATA_SEGMENT_INDEX = 'segment';
const TABLE_METADATA_SEGMENT_PRETTY_INDEX = 'segmentPretty';
/**
* @see DataCollection::$dataNames.
*/
private $dataNames;
/**
* @see DataCollection::$dataType.
*/
private $dataType;
/**
* Whether to expand the DataTables that're created or not. Expanding a DataTable
* means creating DataTables using subtable blobs and correctly setting the subtable
* IDs of all DataTables.
*
* @var bool
*/
private $expandDataTable = false;
/**
* Whether to add the subtable ID used in the database to the in-memory DataTables
* as metadata or not.
*
* @var bool
*/
private $addMetadataSubtableId = false;
/**
* The maximum number of subtable levels to create when creating an expanded
* DataTable.
*
* @var int
*/
private $maxSubtableDepth = null;
/**
* @see DataCollection::$sitesId.
*/
private $sitesId;
/**
* @see DataCollection::$periods.
*/
private $periods;
/**
* @var Segment
*/
private $segment;
/**
* The ID of the subtable to create a DataTable for. Only relevant for blob data.
*
* @var int|null
*/
private $idSubtable = null;
/**
* @see DataCollection::$defaultRow.
*/
private $defaultRow;
const TABLE_METADATA_SITE_INDEX = 'site';
const TABLE_METADATA_PERIOD_INDEX = 'period';
/**
* Constructor.
*/
public function __construct($dataNames, $dataType, $sitesId, $periods, Segment $segment, $defaultRow)
{
$this->dataNames = $dataNames;
$this->dataType = $dataType;
$this->sitesId = $sitesId;
//here index period by string only
$this->periods = $periods;
$this->segment = $segment;
$this->defaultRow = $defaultRow;
}
/**
* Returns the ID of the site a table is related to based on the 'site' metadata entry,
* or null if there is none.
*
* @param DataTable $table
* @return int|null
*/
public static function getSiteIdFromMetadata(DataTable $table)
{
$site = $table->getMetadata('site');
if (empty($site)) {
return null;
} else {
return $site->getId();
}
}
/**
* Tells the factory instance to expand the DataTables that are created by
* creating subtables and setting the subtable IDs of rows w/ subtables correctly.
*
* @param null|int $maxSubtableDepth max depth for subtables.
* @param bool $addMetadataSubtableId Whether to add the subtable ID used in the
* database to the in-memory DataTables as
* metadata or not.
*/
public function expandDataTable($maxSubtableDepth = null, $addMetadataSubtableId = false)
{
$this->expandDataTable = true;
$this->maxSubtableDepth = $maxSubtableDepth;
$this->addMetadataSubtableId = $addMetadataSubtableId;
}
/**
* Tells the factory instance to create a DataTable using a blob with the
* supplied subtable ID.
*
* @param int $idSubtable An in-database subtable ID.
* @throws \Exception
*/
public function useSubtable($idSubtable)
{
if (count($this->dataNames) !== 1) {
throw new \Exception("DataTableFactory: Getting subtables for multiple records in one"
. " archive query is not currently supported.");
}
$this->idSubtable = $idSubtable;
}
private function isNumericDataType()
{
return $this->dataType == 'numeric';
}
/**
* Creates a DataTable|Set instance using an index of
* archive data.
*
* @param array $index @see DataCollection
* @param array $resultIndices an array mapping metadata names with pretty metadata
* labels.
* @return DataTable|DataTable\Map
*/
public function make($index, $resultIndices)
{
$keyMetadata = $this->getDefaultMetadata();
if (empty($resultIndices)) {
// for numeric data, if there's no index (and thus only 1 site & period in the query),
// we want to display every queried metric name
if (empty($index)
&& $this->isNumericDataType()
) {
$index = $this->defaultRow;
}
$dataTable = $this->createDataTable($index, $keyMetadata);
} else {
$dataTable = $this->createDataTableMapFromIndex($index, $resultIndices, $keyMetadata);
}
return $dataTable;
}
/**
* Creates a merged DataTable|Map instance using an index of archive data similar to {@link make()}.
*
* Whereas {@link make()} creates a Map for each result index (period and|or site), this will only create a Map
* for a period result index and move all site related indices into one dataTable. This is the same as doing
* `$dataTableFactory->make()->mergeChildren()` just much faster. It is mainly useful for reports across many sites
* eg `MultiSites.getAll`. Was done as part of https://github.com/piwik/piwik/issues/6809
*
* @param array $index @see DataCollection
* @param array $resultIndices an array mapping metadata names with pretty metadata labels.
*
* @return DataTable|DataTable\Map
* @throws \Exception
*/
public function makeMerged($index, $resultIndices)
{
if (!$this->isNumericDataType()) {
throw new \Exception('This method is supposed to work with non-numeric data types but it is not tested. To use it, remove this exception and write tests to be sure it works.');
}
$hasSiteIndex = isset($resultIndices[self::TABLE_METADATA_SITE_INDEX]);
$hasPeriodIndex = isset($resultIndices[self::TABLE_METADATA_PERIOD_INDEX]);
$isNumeric = $this->isNumericDataType();
// to be backwards compatible use a Simple table if needed as it will be formatted differently
$useSimpleDataTable = !$hasSiteIndex && $isNumeric;
if (!$hasSiteIndex) {
$firstIdSite = reset($this->sitesId);
$index = array($firstIdSite => $index);
}
if ($hasPeriodIndex) {
$dataTable = $this->makeMergedTableWithPeriodAndSiteIndex($index, $resultIndices, $useSimpleDataTable, $isNumeric);
} else {
$dataTable = $this->makeMergedWithSiteIndex($index, $useSimpleDataTable, $isNumeric);
}
return $dataTable;
}
/**
* Creates a DataTable|Set instance using an array
* of blobs.
*
* If only one record is being queried, a single DataTable will
* be returned. Otherwise, a DataTable\Map is returned that indexes
* DataTables by record name.
*
* If expandDataTable was called, and only one record is being queried,
* the created DataTable's subtables will be expanded.
*
* @param array $blobRow
* @return DataTable|DataTable\Map
*/
private function makeFromBlobRow($blobRow, $keyMetadata)
{
if ($blobRow === false) {
$table = new DataTable();
$table->setAllTableMetadata($keyMetadata);
$this->setPrettySegmentMetadata($table);
return $table;
}
if (count($this->dataNames) === 1) {
return $this->makeDataTableFromSingleBlob($blobRow, $keyMetadata);
} else {
return $this->makeIndexedByRecordNameDataTable($blobRow, $keyMetadata);
}
}
/**
* Creates a DataTable for one record from an archive data row.
*
* @see makeFromBlobRow
*
* @param array $blobRow
* @return DataTable
*/
private function makeDataTableFromSingleBlob($blobRow, $keyMetadata)
{
$recordName = reset($this->dataNames);
if ($this->idSubtable !== null) {
$recordName .= '_' . $this->idSubtable;
}
if (!empty($blobRow[$recordName])) {
$table = DataTable::fromSerializedArray($blobRow[$recordName]);
} else {
$table = new DataTable();
}
// set table metadata
$table->setAllTableMetadata(array_merge($table->getAllTableMetadata(), DataCollection::getDataRowMetadata($blobRow), $keyMetadata));
$this->setPrettySegmentMetadata($table);
if ($this->expandDataTable) {
$table->enableRecursiveFilters();
$this->setSubtables($table, $blobRow);
}
return $table;
}
/**
* Creates a DataTable for every record in an archive data row and puts them
* in a DataTable\Map instance.
*
* @param array $blobRow
* @return DataTable\Map
*/
private function makeIndexedByRecordNameDataTable($blobRow, $keyMetadata)
{
$table = new DataTable\Map();
$table->setKeyName('recordName');
$tableMetadata = array_merge(DataCollection::getDataRowMetadata($blobRow), $keyMetadata);
foreach ($blobRow as $name => $blob) {
$newTable = DataTable::fromSerializedArray($blob);
$newTable->setAllTableMetadata(array_merge($newTable->getAllTableMetadata(), $tableMetadata));
$this->setPrettySegmentMetadata($newTable);
$table->addTable($newTable, $name);
}
return $table;
}
/**
* Creates a Set from an array index.
*
* @param array $index @see DataCollection
* @param array $resultIndices @see make
* @param array $keyMetadata The metadata to add to the table when it's created.
* @return DataTable\Map
*/
private function createDataTableMapFromIndex($index, $resultIndices, $keyMetadata)
{
$result = new DataTable\Map();
$result->setKeyName(reset($resultIndices));
$resultIndex = key($resultIndices);
array_shift($resultIndices);
$hasIndices = !empty($resultIndices);
foreach ($index as $label => $value) {
$keyMetadata[$resultIndex] = $this->createTableIndexMetadata($resultIndex, $label);
if ($hasIndices) {
$newTable = $this->createDataTableMapFromIndex($value, $resultIndices, $keyMetadata);
} else {
$newTable = $this->createDataTable($value, $keyMetadata);
}
$result->addTable($newTable, $this->prettifyIndexLabel($resultIndex, $label));
}
return $result;
}
private function createTableIndexMetadata($resultIndex, $label)
{
if ($resultIndex === DataTableFactory::TABLE_METADATA_SITE_INDEX) {
return new Site($label);
} elseif ($resultIndex === DataTableFactory::TABLE_METADATA_PERIOD_INDEX) {
return $this->periods[$label];
}
}
/**
* Creates a DataTable instance from an index row.
*
* @param array $data An archive data row.
* @param array $keyMetadata The metadata to add to the table(s) when created.
* @return DataTable|DataTable\Map
*/
private function createDataTable($data, $keyMetadata)
{
if ($this->dataType == 'blob') {
$result = $this->makeFromBlobRow($data, $keyMetadata);
} else {
$result = $this->makeFromMetricsArray($data, $keyMetadata);
}
return $result;
}
/**
* Creates DataTables from $dataTable's subtable blobs (stored in $blobRow) and sets
* the subtable IDs of each DataTable row.
*
* @param DataTable $dataTable
* @param array $blobRow An array associating record names (w/ subtable if applicable)
* with blob values. This should hold every subtable blob for
* the loaded DataTable.
* @param int $treeLevel
*/
private function setSubtables($dataTable, $blobRow, $treeLevel = 0)
{
if ($this->maxSubtableDepth
&& $treeLevel >= $this->maxSubtableDepth
) {
// unset the subtables so DataTableManager doesn't throw
foreach ($dataTable->getRowsWithoutSummaryRow() as $row) {
$row->removeSubtable();
}
$summaryRow = $dataTable->getRowFromId(DataTable::ID_SUMMARY_ROW);
if ($summaryRow) {
$summaryRow->removeSubtable();
}
return;
}
$dataName = reset($this->dataNames);
foreach ($dataTable->getRows() as $row) {
$sid = $row->getIdSubDataTable();
if ($sid === null) {
continue;
}
$blobName = $dataName . "_" . $sid;
if (!empty($blobRow[$blobName])) {
$subtable = DataTable::fromSerializedArray($blobRow[$blobName]);
$subtable->setMetadata(self::TABLE_METADATA_PERIOD_INDEX, $dataTable->getMetadata(self::TABLE_METADATA_PERIOD_INDEX));
$subtable->setMetadata(self::TABLE_METADATA_SITE_INDEX, $dataTable->getMetadata(self::TABLE_METADATA_SITE_INDEX));
$subtable->setMetadata(self::TABLE_METADATA_SEGMENT_INDEX, $dataTable->getMetadata(self::TABLE_METADATA_SEGMENT_INDEX));
$subtable->setMetadata(self::TABLE_METADATA_SEGMENT_PRETTY_INDEX, $dataTable->getMetadata(self::TABLE_METADATA_SEGMENT_PRETTY_INDEX));
$this->setSubtables($subtable, $blobRow, $treeLevel + 1);
// we edit the subtable ID so that it matches the newly table created in memory
// NB: we don't overwrite the datatableid in the case we are displaying the table expanded.
if ($this->addMetadataSubtableId) {
// this will be written back to the column 'idsubdatatable' just before rendering,
// see Renderer/Php.php
$row->addMetadata('idsubdatatable_in_db', $row->getIdSubDataTable());
}
$row->setSubtable($subtable);
}
}
}
private function getDefaultMetadata()
{
return array(
DataTableFactory::TABLE_METADATA_SITE_INDEX => new Site(reset($this->sitesId)),
DataTableFactory::TABLE_METADATA_PERIOD_INDEX => reset($this->periods),
DataTableFactory::TABLE_METADATA_SEGMENT_INDEX => $this->segment->getString(),
DataTableFactory::TABLE_METADATA_SEGMENT_PRETTY_INDEX => $this->segment->getString(),
);
}
/**
* Returns the pretty version of an index label.
*
* @param string $labelType eg, 'site', 'period', etc.
* @param string $label eg, '0', '1', '2012-01-01,2012-01-31', etc.
* @return string
*/
private function prettifyIndexLabel($labelType, $label)
{
if ($labelType == self::TABLE_METADATA_PERIOD_INDEX) { // prettify period labels
$period = $this->periods[$label];
$label = $period->getLabel();
if ($label === 'week' || $label === 'range') {
return $period->getRangeString();
}
return $period->getPrettyString();
}
return $label;
}
/**
* @param $data
* @return DataTable\Simple
*/
private function makeFromMetricsArray($data, $keyMetadata)
{
$table = new DataTable\Simple();
if (!empty($data)) {
$table->setAllTableMetadata(array_merge($table->getAllTableMetadata(), DataCollection::getDataRowMetadata($data), $keyMetadata));
$this->setPrettySegmentMetadata($table);
DataCollection::removeMetadataFromDataRow($data);
$table->addRow(new Row(array(Row::COLUMNS => $data)));
} else {
// if we're querying numeric data, we couldn't find any, and we're only
// looking for one metric, add a row w/ one column w/ value 0. this is to
// ensure that the PHP renderer outputs 0 when only one column is queried.
// w/o this code, an empty array would be created, and other parts of Piwik
// would break.
if (count($this->dataNames) == 1
&& $this->isNumericDataType()
) {
$name = reset($this->dataNames);
$table->addRow(new Row(array(Row::COLUMNS => array($name => 0))));
}
$table->setAllTableMetadata(array_merge($table->getAllTableMetadata(), $keyMetadata));
$this->setPrettySegmentMetadata($table);
}
$result = $table;
return $result;
}
private function makeMergedTableWithPeriodAndSiteIndex($index, $resultIndices, $useSimpleDataTable, $isNumeric)
{
$map = new DataTable\Map();
$map->setKeyName($resultIndices[self::TABLE_METADATA_PERIOD_INDEX]);
// we save all tables of the map in this array to be able to add rows fast
$tables = array();
foreach ($this->periods as $range => $period) {
// as the resulting table is "merged", we do only set Period metedata and no metadata for site. Instead each
// row will have an idsite metadata entry.
$metadata = array(self::TABLE_METADATA_PERIOD_INDEX => $period);
if ($useSimpleDataTable) {
$table = new DataTable\Simple();
} else {
$table = new DataTable();
}
$table->setAllTableMetadata(array_merge($table->getAllTableMetadata(), $metadata));
$this->setPrettySegmentMetadata($table);
$map->addTable($table, $this->prettifyIndexLabel(self::TABLE_METADATA_PERIOD_INDEX, $range));
$tables[$range] = $table;
}
foreach ($index as $idsite => $table) {
$rowMeta = array('idsite' => $idsite);
foreach ($table as $range => $row) {
if (!empty($row)) {
$tables[$range]->addRow(new Row(array(
Row::COLUMNS => $row,
Row::METADATA => $rowMeta)
));
} elseif ($isNumeric) {
$tables[$range]->addRow(new Row(array(
Row::COLUMNS => $this->defaultRow,
Row::METADATA => $rowMeta)
));
}
}
}
return $map;
}
private function makeMergedWithSiteIndex($index, $useSimpleDataTable, $isNumeric)
{
if ($useSimpleDataTable) {
$table = new DataTable\Simple();
} else {
$table = new DataTable();
}
$table->setAllTableMetadata(array(DataTableFactory::TABLE_METADATA_PERIOD_INDEX => reset($this->periods)));
$this->setPrettySegmentMetadata($table);
foreach ($index as $idsite => $row) {
if (!empty($row)) {
$table->addRow(new Row(array(
Row::COLUMNS => $row,
Row::METADATA => array('idsite' => $idsite))
));
} elseif ($isNumeric) {
$table->addRow(new Row(array(
Row::COLUMNS => $this->defaultRow,
Row::METADATA => array('idsite' => $idsite))
));
}
}
return $table;
}
private function setPrettySegmentMetadata(DataTable $table)
{
$site = $table->getMetadata(self::TABLE_METADATA_SITE_INDEX);
$idSite = $site ? $site->getId() : false;
$segmentPretty = $this->segment->getStoredSegmentName($idSite);
$table->setMetadata('segment', $this->segment->getString());
$table->setMetadata('segmentPretty', $segmentPretty);
}
}
|