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<?php |
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declare(strict_types=1); |
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namespace Sirius\Orm\Entity; |
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use Sirius\Orm\Collection\Collection; |
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use Sirius\Orm\Mapper; |
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use Sirius\Orm\Query; |
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use Sirius\Orm\Relation\Aggregate; |
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use Sirius\Orm\Relation\Relation; |
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class Tracker |
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{ |
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protected $rows = []; |
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/** |
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* @var Mapper |
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*/ |
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protected $mapper; |
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/** |
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* @var array |
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*/ |
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protected $relations = []; |
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/** |
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* @var array |
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*/ |
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protected $relationCallback = []; |
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/** |
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* @var array |
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*/ |
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protected $relationNextLoad = []; |
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/** |
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* @var array |
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*/ |
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protected $relationResults = []; |
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public function __construct(array $rows = []) |
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{ |
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$this->rows = $rows; |
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} |
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public function setRelation($name, Relation $relation, $callback, array $nextLoad = [], $overwrite = false) |
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{ |
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if ($overwrite || ! isset($this->relations[$name])) { |
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$this->relations[$name] = $relation; |
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$this->relationCallback[$name] = $callback; |
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if (!empty($nextLoad)) { |
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$this->relationNextLoad[$name] = $nextLoad; |
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} |
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} |
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} |
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public function hasRelation($name) |
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{ |
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return isset($this->relations[$name]); |
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} |
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public function getResultsForRelation($name) |
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{ |
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if (! isset($this->relations[$name])) { |
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return null; |
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} |
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if (isset($this->relationResults[$name])) { |
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return $this->relationResults[$name]; |
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} |
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/** @var Query $query */ |
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$query = $this->relations[$name]->getQuery($this); |
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$queryCallback = $this->relationCallback[$name] ?? null; |
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if ($queryCallback && is_callable($queryCallback)) { |
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$query = $queryCallback($query); |
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} |
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$queryNextLoad = $this->relationNextLoad[$name] ?? []; |
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if ($queryNextLoad && !empty($queryNextLoad)) { |
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foreach ($queryNextLoad as $next => $callback) { |
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$query = $query->load([$next => $callback]); |
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} |
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} |
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$results = $query->get(); |
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$this->relationResults[$name] = $results instanceof Collection ? $results->getValues() : $results; |
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return $this->relationResults[$name]; |
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} |
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public function getAggregateResults(Aggregate $aggregate) |
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{ |
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$name = $aggregate->getName(); |
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if (isset($this->aggregateResults[$name])) { |
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return $this->aggregateResults[$name]; |
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} |
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/** @var Query $query */ |
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$query = $aggregate->getQuery($this); |
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$results = $query->fetchAll(); |
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$this->aggregateResults[$name] = $results instanceof Collection ? $results->getValues() : $results; |
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return $this->aggregateResults[$name]; |
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} |
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public function pluck($columns) |
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{ |
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$result = []; |
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foreach ($this->rows as $row) { |
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$value = $this->getColumnsFromRow($row, $columns); |
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if ($value && !in_array($value, $result)) { |
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$result[] = $value; |
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} |
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} |
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/** |
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* @todo check if array_unique() performs better |
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*/ |
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return $result; |
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} |
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protected function getColumnsFromRow($row, $columns) |
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{ |
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if (is_array($columns) && count($columns) > 1) { |
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$result = []; |
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foreach ($columns as $column) { |
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if ($row instanceof GenericEntity) { |
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$result[] = $row->get($column); |
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} else { |
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$result[] = $row[$column] ?? null; |
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} |
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} |
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return $result; |
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} |
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$column = is_array($columns) ? $columns[0] : $columns; |
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return $row instanceof GenericEntity ? $row->get($column) : ($row[$column] ?? null); |
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} |
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/** |
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* After the entities are created we use this method to swap the rows |
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* with the actual entities to save some memory since rows can be quite big |
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* |
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* @param array $entities |
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*/ |
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public function replaceRows(array $entities) |
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{ |
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$this->rows = $entities; |
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} |
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} |
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siriusphp /
orm
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