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<?php |
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namespace GetStream\Doctrine; |
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use Doctrine\Common\Collections\Criteria; |
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use Doctrine\Common\Collections\Expr\Comparison; |
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use Doctrine\ORM\EntityManagerInterface; |
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class Enrich implements EnrichInterface |
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{ |
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/** |
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* @var array |
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*/ |
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private $enrichingFields = ['actor', 'object']; |
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/** |
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* @var EntityManagerInterface |
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*/ |
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private $entityManager; |
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/** |
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* @param EntityManagerInterface $entityManager |
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*/ |
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public function __construct(EntityManagerInterface $entityManager) |
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{ |
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$this->entityManager = $entityManager; |
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} |
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/** |
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* @param array $fields |
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* |
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* @return $this |
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*/ |
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public function setEnrichingFields(array $fields) |
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{ |
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$this->enrichingFields = $fields; |
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return $this; |
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} |
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/** |
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* @param array $activities |
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* |
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* @return EnrichedActivity[] |
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*/ |
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public function enrichActivities(array $activities) |
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{ |
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if (empty($activities)) { |
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return []; |
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} |
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$activities = $this->wrapActivities($activities); |
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$references = $this->collectReferences($activities); |
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$objects = $this->retrieveObjects($references); |
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return $this->injectObjects($activities, $objects); |
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} |
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/** |
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* @param array $aggregatedActivities |
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* |
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* @return EnrichedActivity[] |
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*/ |
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public function enrichAggregatedActivities(array $aggregatedActivities) |
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{ |
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if (empty($aggregatedActivities)) { |
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return []; |
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} |
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$allActivities = []; |
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foreach ($aggregatedActivities as &$aggregated) { |
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$activities = $this->wrapActivities($aggregated['activities']); |
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$allActivities = array_merge($allActivities, $activities); |
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$aggregated['activities'] = $activities; |
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} |
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$references = $this->collectReferences($allActivities); |
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$objects = $this->retrieveObjects($references); |
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$this->injectObjects($allActivities, $objects); |
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return $aggregatedActivities; |
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} |
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/** |
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* @param array $activities |
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* |
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* @return EnrichedActivity[] |
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*/ |
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private function wrapActivities(array $activities) |
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{ |
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return array_map(function (array $activity) { |
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return new EnrichedActivity($activity); |
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}, $activities); |
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} |
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/** |
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* @param EnrichedActivity[] $activities |
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* |
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* @return array |
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*/ |
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private function collectReferences(array $activities) |
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{ |
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$references = []; |
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foreach ($activities as $activity) { |
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foreach ($activity as $field => $value) { |
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if ($value === null) { |
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continue; |
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} |
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if (!in_array($field, $this->enrichingFields)) { |
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continue; |
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} |
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list($type, $identifier) = explode(':', $value); |
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$references[$type][] = $identifier; |
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} |
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} |
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return $references; |
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} |
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/** |
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* @param array $references |
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* |
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* @return array |
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*/ |
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private function retrieveObjects(array $references) |
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{ |
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$objects = []; |
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foreach (array_keys($references) as $type) { |
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$identifiers = array_unique($references[$type]); |
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$result = $this->entityManager |
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->getRepository($type) |
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->matching( |
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Criteria::create() |
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->where(new Comparison('id', Comparison::IN, $identifiers)) |
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)->getValues(); |
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$keys = array_map(function ($item) { |
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return $item->id(); |
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}, $result); |
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$objects[$type] = array_combine($keys, $result); |
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} |
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return $objects; |
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} |
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/** |
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* @param EnrichedActivity[] $activities |
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* @param array $objects |
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* |
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* @return EnrichedActivity[] |
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5 |
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*/ |
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public function injectObjects($activities, $objects) |
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{ |
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foreach ($activities as &$activity) { |
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foreach ($this->enrichingFields as $field) { |
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if (!isset($activity[$field])) { |
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continue; |
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} |
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$value = $activity[$field]; |
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list($type, $identifier) = explode(':', $value); |
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if (!isset($objects[$type], $objects[$type][$identifier])) { |
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$activity->trackNotEnrichedField($type, $identifier); |
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continue; |
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} |
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$activity[$field] = $objects[$type][$identifier]; |
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} |
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} |
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5 |
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return $activities; |
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} |
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} |
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GetStream /
stream-doctrine
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