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add cursor pagination

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Dennis Eichhorn 2020-02-16 19:55:15 +01:00
parent 6d001caaab
commit 4b95814719
1 changed files with 118 additions and 0 deletions
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118
DataStorage/Database/DataMapperAbstract.php
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@ -20,6 +20,7 @@ use phpOMS\DataStorage\Database\Query\Builder;
use phpOMS\DataStorage\Database\Query\QueryType;
use phpOMS\DataStorage\DataMapperInterface;
use phpOMS\Utils\ArrayUtils;
use phpOMS\Algorithm\Sort\SortOrder;
/**
* Datamapper for databases.
@ -2362,6 +2363,123 @@ class DataMapperAbstract implements DataMapperInterface
return $obj;
}
/**
* Count the number of elements before a pivot element
*
* @param mixed $pivot Pivet id
* @param null|string $column Name of the field in the model
*
* @return int
*
* @since 1.0.0
*/
public static function countBeforePivot($pivot, string $column = null) : int
{
$query = new Builder(self::$db);
$query->where(static::$table . '.' . ($column !== null ? self::getColumnByMember($column) : static::$primaryField), '<', $pivot);
return self::count($query);
}
/**
* Count the number of elements after a pivot element
*
* @param mixed $pivot Pivet id
* @param null|string $column Name of the field in the model
*
* @return int
*
* @since 1.0.0
*/
public static function countAfterPivot($pivot, string $column = null) : int
{
$query = new Builder(self::$db);
$query->where(static::$table . '.' . ($column !== null ? self::getColumnByMember($column) : static::$primaryField), '>', $pivot);
return self::count($query);
}
/**
* Count the number of elements
*
* @param null|Builder $query Builder
*
* @return int
*
* @since 1.0.0
*/
public static function count(Builder $query = null) : int
{
$query = $query ?? new Builder(self::$db);
$query->prefix(self::$db->getPrefix())
->select('COUNT(*)')
->from(static::$table);
return (int) $query->execute()->fetchColumn();;
}
/**
* Get objects for pagination
*
* @param mixed $pivot Pivot
* @param string $column Sort column/pivot column
* @param int $limit Result limit
* @param string $order Order of the elements
* @param int $relations Load relations
* @param mixed $fill Object to fill
* @param int $depth Relation depth
*
* @return mixed
*
* @since 1.0.0
*/
public static function getAfterPivot(
$pivot,
string $column = null,
int $limit = 50,
string $order = 'ASC',
int $relations = RelationType::ALL,
$fill = null, int $depth = 3)
{
$query = self::getQuery();
$query->where(static::$table . '.' . ($column !== null ? self::getColumnByMember($column) : static::$primaryField), '>', $pivot)
->orderBy(static::$table . '.' . ($column !== null ? self::getColumnByMember($column) : static::$primaryField), $order)
->limit($limit);
return self::getAllByQuery($query, $relations, $depth);
}
/**
* Get objects for pagination
*
* @param mixed $pivot Pivot
* @param string $column Sort column/pivot column
* @param int $limit Result limit
* @param string $order Order of the elements
* @param int $relations Load relations
* @param mixed $fill Object to fill
* @param int $depth Relation depth
*
* @return mixed
*
* @since 1.0.0
*/
public static function getBeforePivot(
$pivot,
string $column = null,
int $limit = 50,
string $order = 'ASC',
int $relations = RelationType::ALL,
$fill = null, int $depth = 3)
{
$query = self::getQuery();
$query->where(static::$table . '.' . ($column !== null ? self::getColumnByMember($column) : static::$primaryField), '<', $pivot)
->orderBy(static::$table . '.' . ($column !== null ? self::getColumnByMember($column) : static::$primaryField), $order)
->limit($limit);
return self::getAllByQuery($query, $relations, $depth);
}
/**
* Get object.
*