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<?php |
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/* For licensing terms, see /license.txt */ |
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namespace Chamilo\CoreBundle\Repository; |
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use Chamilo\CoreBundle\Entity\Sequence; |
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use Chamilo\CoreBundle\Entity\SequenceResource; |
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use Fhaculty\Graph\Set\Vertices; |
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use Fhaculty\Graph\Vertex; |
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use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository; |
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use Doctrine\Common\Persistence\ManagerRegistry; |
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/** |
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* Class SequenceRepository |
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* The functions inside this class should return an instance of QueryBuilder. |
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* |
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* @package Chamilo\CoreBundle\Repository |
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*/ |
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class SequenceRepository extends ServiceEntityRepository |
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{ |
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/** |
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* SequenceRepository constructor. |
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* |
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* @param ManagerRegistry $registry |
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*/ |
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public function __construct(ManagerRegistry $registry) |
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{ |
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parent::__construct($registry, Sequence::class); |
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} |
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/** |
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* Find the SequenceResource based in the resourceId and type. |
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* |
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* @param int $resourceId |
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* @param int $type |
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* |
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* @return SequenceResource |
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*/ |
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public function findRequirementForResource($resourceId, $type) |
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{ |
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return $this->findOneBy(['resourceId' => $resourceId, 'type' => $type]); |
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} |
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/** |
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* @todo implement for all types only work for sessions |
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* |
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* @param int $resourceId |
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* @param int $type |
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* |
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* @return array |
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*/ |
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public function getRequirementAndDependencies($resourceId, $type) |
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{ |
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$sequence = $this->findRequirementForResource($resourceId, $type); |
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$result = ['requirements' => '', 'dependencies' => []]; |
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if ($sequence && $sequence->hasGraph()) { |
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$graph = $sequence->getSequence()->getUnSerializeGraph(); |
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$vertex = $graph->getVertex($resourceId); |
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$from = $vertex->getVerticesEdgeFrom(); |
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foreach ($from as $subVertex) { |
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$vertexId = $subVertex->getId(); |
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$sessionInfo = api_get_session_info($vertexId); |
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$sessionInfo['admin_link'] = '<a href="'.\SessionManager::getAdminPath($vertexId).'">'.$sessionInfo['name'].'</a>'; |
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$result['requirements'][] = $sessionInfo; |
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} |
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$to = $vertex->getVerticesEdgeTo(); |
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foreach ($to as $subVertex) { |
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$vertexId = $subVertex->getId(); |
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$sessionInfo = api_get_session_info($vertexId); |
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$sessionInfo['admin_link'] = '<a href="'.\SessionManager::getAdminPath($vertexId).'">'.$sessionInfo['name'].'</a>'; |
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$result['dependencies'][] = $sessionInfo; |
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} |
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} |
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return $result; |
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} |
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/** |
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* Deletes a node and check in all the dependencies if the node exists in |
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* order to deleted. |
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* |
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* @param int $resourceId |
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* @param int $type |
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*/ |
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public function deleteResource($resourceId, $type) |
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{ |
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$sequence = $this->findRequirementForResource($resourceId, $type); |
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if ($sequence && $sequence->hasGraph()) { |
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$em = $this->getEntityManager(); |
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$graph = $sequence->getSequence()->getUnSerializeGraph(); |
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$mainVertex = $graph->getVertex($resourceId); |
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$vertices = $graph->getVertices(); |
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/** @var Vertex $vertex */ |
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foreach ($vertices as $vertex) { |
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$subResourceId = $vertex->getId(); |
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$subSequence = $this->findRequirementForResource($subResourceId, $type); |
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if ($sequence && $subSequence->hasGraph()) { |
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$graph = $subSequence->getSequence()->getUnSerializeGraph(); |
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$subMainVertex = $graph->getVertex($resourceId); |
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$subMainVertex->destroy(); |
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$subSequence->getSequence()->setGraphAndSerialize($graph); |
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$em->persist($subSequence); |
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} |
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} |
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$mainVertex->destroy(); |
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$em->remove($sequence); |
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$em->flush(); |
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} |
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} |
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/** |
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* Get the requirements for a resource only. |
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* |
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* @param int $resourceId The resource ID |
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* @param int $type The type of sequence resource |
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* |
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* @return array |
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*/ |
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public function getRequirements($resourceId, $type) |
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{ |
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$sequencesResource = $this->findBy([ |
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'resourceId' => $resourceId, |
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'type' => $type, |
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]); |
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$result = []; |
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/** @var SequenceResource $sequenceResource */ |
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foreach ($sequencesResource as $sequenceResource) { |
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if (!$sequenceResource->hasGraph()) { |
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continue; |
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} |
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$sequence = $sequenceResource->getSequence(); |
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$graph = $sequence->getUnSerializeGraph(); |
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$vertex = $graph->getVertex($resourceId); |
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$from = $vertex->getVerticesEdgeFrom(); |
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$sequenceInfo = [ |
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'name' => $sequence->getName(), |
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'requirements' => [], |
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]; |
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foreach ($from as $subVertex) { |
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$vertexId = $subVertex->getId(); |
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switch ($type) { |
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case SequenceResource::SESSION_TYPE: |
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$session = $this->getEntityManager()->getReference( |
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'ChamiloCoreBundle:Session', |
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$vertexId |
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); |
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if (empty($session)) { |
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break; |
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} |
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$sequenceInfo['requirements'][$vertexId] = $session; |
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break; |
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} |
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} |
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$result[$sequence->getId()] = $sequenceInfo; |
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} |
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return $result; |
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} |
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/** |
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* Get the requirements and dependencies within a sequence for a resource. |
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* |
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* @param int $resourceId The resource ID |
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* @param int $type The type of sequence resource |
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* |
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* @return array |
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*/ |
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public function getRequirementsAndDependenciesWithinSequences($resourceId, $type) |
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{ |
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$sequencesResource = $this->findBy([ |
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'resourceId' => $resourceId, |
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'type' => $type, |
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]); |
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$result = []; |
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/** @var SequenceResource $sequenceResource */ |
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foreach ($sequencesResource as $sequenceResource) { |
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if (!$sequenceResource->hasGraph()) { |
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continue; |
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} |
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$sequence = $sequenceResource->getSequence(); |
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$graph = $sequence->getUnSerializeGraph(); |
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$vertex = $graph->getVertex($resourceId); |
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$from = $vertex->getVerticesEdgeFrom(); |
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$to = $vertex->getVerticesEdgeTo(); |
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$requirements = []; |
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$dependencies = []; |
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switch ($type) { |
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case SequenceResource::SESSION_TYPE: |
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$requirements = $this->findSessionFromVerticesEdges($from); |
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$dependencies = $this->findSessionFromVerticesEdges($to); |
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break; |
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} |
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$result[$sequence->getId()] = [ |
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'name' => $sequence->getName(), |
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'requirements' => $requirements, |
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'dependencies' => $dependencies, |
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]; |
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} |
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return [ |
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'sequences' => $result, |
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]; |
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} |
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/** |
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* Get sessions from vertices. |
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* |
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* @param Vertices $verticesEdges The vertices |
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* |
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* @return array |
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*/ |
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protected function findSessionFromVerticesEdges(Vertices $verticesEdges) |
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{ |
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$sessionVertices = []; |
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foreach ($verticesEdges as $supVertex) { |
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$vertexId = $supVertex->getId(); |
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$session = $this->getEntityManager()->getReference( |
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'ChamiloCoreBundle:Session', |
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$vertexId |
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); |
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if (empty($session)) { |
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continue; |
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} |
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$sessionVertices[$vertexId] = $session; |
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} |
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return $sessionVertices; |
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} |
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} |
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