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<?php
// Icinga Web 2 Cube Module | (c) 2022 Icinga GmbH | GPLv2
namespace Icinga\Module\Cube\IcingaDb;
use Icinga\Module\Cube\Cube;
use Icinga\Module\Cube\Dimension;
use Icinga\Module\Icingadb\Model\CustomvarFlat;
use ipl\Sql\Expression;
use ipl\Stdlib\Filter;
class CustomVariableDimension implements Dimension
{
protected $name;
protected $label;
protected $wantNull = false;
public function __construct($name)
{
$this->name = $name;
}
public function getName()
{
return $this->name;
}
public function getLabel()
{
return $this->label ?: $this->getName();
}
/**
* Set the label
*
* @param string $label
* @return $this
*/
public function setLabel($label)
{
$this->label = $label;
return $this;
}
/**
* Add a label
*
* @param string $label
* @return $this
*/
public function addLabel($label)
{
if ($this->label === null) {
$this->setLabel($label);
} else {
$this->label .= ' & ' . $label;
}
return $this;
}
/**
* Define whether null values should be shown
*
* @param bool $wantNull
* @return $this
*/
public function wantNull($wantNull = true)
{
$this->wantNull = $wantNull;
return $this;
}
/**
* @param IcingaDbCube $cube
* @return Expression|string
*/
public function getColumnExpression(Cube $cube)
{
$expression = $cube->getDb()->quoteIdentifier(['c_' . $this->getName(), 'flatvalue']);
if ($this->wantNull) {
return new Expression("COALESCE($expression, '-')");
}
return $expression;
}
public function addToCube(Cube $cube)
{
/** @var IcingaDbCube $cube */
$name = $this->getName();
$innerQuery = $cube->innerQuery();
$sourceTable = $innerQuery->getModel()->getTableName();
$subQuery = $innerQuery->createSubQuery(new CustomvarFlat(), $sourceTable . '.vars');
$subQuery->getSelectBase()->resetWhere(); // The link to the outer query is the ON condition
$subQuery->columns(['flatvalue', 'object_id' => $sourceTable . '.id']);
$subQuery->filter(Filter::like('flatname', $name));
// Values might not be unique (wildcard dimensions)
$subQuery->getSelectBase()->groupBy([
$subQuery->getResolver()->getAlias($subQuery->getModel()) . '.flatvalue',
'object_id'
]);
$subQueryAlias = $cube->getDb()->quoteIdentifier(['c_' . $name]);
$innerQuery->getSelectBase()->groupBy($subQueryAlias . '.flatvalue');
$innerQuery->getSelectBase()->join(
[$subQueryAlias => $subQuery->assembleSelect()],
[$subQueryAlias . '.object_id = ' . $innerQuery->getResolver()->getAlias($innerQuery->getModel()) . '.id']
);
}
}
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