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<?php
namespace ipl\Sql;
/**
* Implementation for the {@link LimitOffsetInterface} to allow pagination via {@link limit()} and {@link offset()}
*/
trait LimitOffset
{
/**
* The maximum number of how many items to return
*
* If unset or lower than 0, no limit will be applied.
*
* @var int|null
*/
protected $limit;
/**
* Offset from where to start the result set
*
* If unset or lower than 0, the result set will start from the beginning.
*
* @var int|null
*/
protected $offset;
public function hasLimit()
{
return $this->limit !== null;
}
public function getLimit()
{
return $this->limit;
}
public function limit($limit)
{
if ($limit !== null) {
$limit = (int) $limit;
if ($limit < 0) {
$limit = null;
}
}
$this->limit = $limit;
return $this;
}
public function resetLimit()
{
$this->limit = null;
return $this;
}
public function hasOffset()
{
return $this->offset !== null;
}
public function getOffset()
{
return $this->offset;
}
public function offset($offset)
{
if ($offset !== null) {
$offset = (int) $offset;
if ($offset <= 0) {
$offset = null;
}
}
$this->offset = $offset;
return $this;
}
public function resetOffset()
{
$this->offset = null;
return $this;
}
}
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