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<?php |
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/** |
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* @author CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @copyright CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @license http://www.gnu.org/licenses/gpl.html GNU General Public License |
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*/ |
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namespace midgard\portable\storage; |
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use midgard\portable\storage\interfaces\metadata; |
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use midgard\portable\api\dbobject; |
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use midgard\portable\api\repligard; |
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use Doctrine\Common\EventSubscriber; |
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use Doctrine\Persistence\Mapping\ClassMetadata; |
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use Doctrine\ORM\Events; |
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use Doctrine\ORM\EntityManagerInterface; |
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use Doctrine\ORM\Event\OnFlushEventArgs; |
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use Doctrine\DBAL\Schema\Column; |
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use Doctrine\DBAL\Types\Type; |
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use Doctrine\DBAL\Events as dbal_events; |
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use Doctrine\DBAL\Event\SchemaCreateTableEventArgs; |
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use Doctrine\DBAL\Event\SchemaColumnDefinitionEventArgs; |
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use Doctrine\ORM\Tools\ToolEvents; |
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use Doctrine\ORM\Tools\Event\GenerateSchemaTableEventArgs; |
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use Doctrine\DBAL\Types\Types; |
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use Doctrine\Persistence\Event\LifecycleEventArgs; |
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use Doctrine\DBAL\Platforms\SqlitePlatform; |
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use Doctrine\DBAL\Platforms\AbstractMySQLPlatform; |
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class subscriber implements EventSubscriber |
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{ |
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const ACTION_NONE = 0; |
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const ACTION_DELETE = 1; |
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const ACTION_PURGE = 2; |
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const ACTION_CREATE = 3; |
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const ACTION_UPDATE = 4; |
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public function onFlush(OnFlushEventArgs $args) |
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{ |
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$em = $args->getObjectManager(); |
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$uow = $em->getUnitOfWork(); |
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foreach ($uow->getScheduledEntityInsertions() as $entity) { |
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$this->on_create($entity, $em); |
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} |
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foreach ($uow->getScheduledEntityUpdates() as $entity) { |
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$this->on_update($entity, $em); |
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} |
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foreach ($uow->getScheduledEntityDeletions() as $entity) { |
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$this->on_remove($entity, $em); |
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} |
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} |
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public function postLoad(LifecycleEventArgs $args) |
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{ |
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$entity = $args->getObject(); |
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if ($entity instanceof dbobject) { |
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$om = $args->getObjectManager(); |
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$entity->injectObjectManager($om, $om->getClassMetadata(get_class($entity))); |
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} |
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} |
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private function on_create(dbobject $entity, EntityManagerInterface $em) |
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{ |
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$cm = $em->getClassMetadata(get_class($entity)); |
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if (!($entity instanceof repligard)) { |
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if (empty($entity->guid)) { |
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$entity->set_guid(connection::generate_guid()); |
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$em->getUnitOfWork()->recomputeSingleEntityChangeSet($cm, $entity); |
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} |
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$om = new objectmanager($em); |
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$repligard_cm = $em->getClassMetadata(connection::get_fqcn('midgard_repligard')); |
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$repligard_entry = $om->new_instance($repligard_cm->getName()); |
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$repligard_entry->typename = $cm->getReflectionClass()->getShortName(); |
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$repligard_entry->guid = $entity->guid; |
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$repligard_entry->object_action = self::ACTION_CREATE; |
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$em->persist($repligard_entry); |
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$em->getUnitOfWork()->computeChangeSet($repligard_cm, $repligard_entry); |
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} |
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if ($entity instanceof metadata) { |
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$entity->metadata->created = new \midgard_datetime(); |
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// we copy here instead of creating a new, because otherwise we might have |
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// a one second difference if the code runs at the right millisecond |
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$entity->metadata->revised = $entity->metadata->created; |
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if ($user = connection::get_user()) { |
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$entity->metadata_creator = $user->person; |
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$entity->metadata_revisor = $user->person; |
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} |
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$entity->metadata->size = $this->calculate_size($cm, $entity); |
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$em->getUnitOfWork()->recomputeSingleEntityChangeSet($cm, $entity); |
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} |
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} |
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private function on_update(dbobject $entity, EntityManagerInterface $em) |
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{ |
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if ($entity instanceof repligard) { |
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return; |
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} |
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$check_repligard = true; |
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$deleted = false; |
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if ($entity instanceof metadata) { |
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$deleted = $entity->{metadata::DELETED_FIELD}; |
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$cs = $em->getUnitOfWork()->getEntityChangeSet($entity); |
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// We only need to update repligard if we're coming from create (revision 0) |
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// or if we delete/undelete |
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if ( !array_key_exists('metadata_deleted', $cs) |
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&& $entity->metadata_revision > 0) { |
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$check_repligard = false; |
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} |
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$create_revision = true; |
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if (array_key_exists('metadata_islocked', $cs)) { |
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$lock_fields = array_flip(['metadata_locked', 'metadata_islocked', 'metadata_locker']); |
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$create_revision = !empty(array_diff_key($cs, $lock_fields)); |
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} |
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if ($create_revision) { |
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$cm = $em->getClassMetadata(get_class($entity)); |
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$entity->metadata_revised = new \midgard_datetime(); |
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$entity->metadata_revision++; |
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if ($user = connection::get_user()) { |
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$entity->metadata_revisor = $user->person; |
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} |
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$entity->metadata->size = $this->calculate_size($cm, $entity); |
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$em->getUnitOfWork()->recomputeSingleEntityChangeSet($cm, $entity); |
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} |
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} |
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if ($check_repligard) { |
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$repligard_entry = $em->getRepository(connection::get_fqcn('midgard_repligard'))->findOneBy(['guid' => $entity->guid]); |
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if ($deleted) { |
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$repligard_entry->object_action = self::ACTION_DELETE; |
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} else { |
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$repligard_entry->object_action = self::ACTION_UPDATE; |
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} |
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$em->persist($repligard_entry); |
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$em->getUnitOfWork()->computeChangeSet($em->getClassMetadata(connection::get_fqcn('midgard_repligard')), $repligard_entry); |
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} |
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} |
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private function on_remove(dbobject $entity, EntityManagerInterface $em) |
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{ |
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if (!($entity instanceof repligard)) { |
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$repligard_entry = $em->getRepository(connection::get_fqcn('midgard_repligard'))->findOneBy(['guid' => $entity->guid]); |
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if (empty($repligard_entry)) { |
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connection::log()->error('No repligard entry found for GUID ' . $entity->guid); |
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} else { |
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$repligard_entry->object_action = self::ACTION_PURGE; |
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$em->persist($repligard_entry); |
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$em->getUnitOfWork()->computeChangeSet($em->getClassMetadata(connection::get_fqcn('midgard_repligard')), $repligard_entry); |
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} |
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} |
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} |
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private function calculate_size(ClassMetadata $cm, metadata $entity) : int |
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{ |
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$size = 0; |
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foreach ($cm->getAssociationNames() as $name) { |
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$size += strlen($entity->$name); |
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} |
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foreach ($cm->getFieldNames() as $name) { |
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match ($cm->fieldMappings[$name]['type']) { |
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Types::DATETIME_MUTABLE => $size += 19, // Y-m-d H:i:s |
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Types::DATE_MUTABLE => $size += 10, // Y-m-d |
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default => $size += strlen($entity->$name), |
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}; |
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} |
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return $size; |
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} |
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public function onSchemaCreateTable(SchemaCreateTableEventArgs $args) |
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{ |
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$platform = $args->getPlatform(); |
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$columns = $args->getColumns(); |
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$modified = false; |
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foreach ($columns as $name => &$config) { |
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if ($platform instanceof SqlitePlatform) { |
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if ( !empty($config['comment']) |
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&& $config['comment'] == 'BINARY') { |
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$modified = true; |
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$config['columnDefinition'] = $config['type']->getSQLDeclaration($config, $platform) . ' COLLATE BINARY' . $platform->getDefaultValueDeclarationSQL($config); |
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} |
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} |
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if ($platform instanceof AbstractMySQLPlatform) { |
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if (!empty($config['comment'])) { |
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if ($config['comment'] == 'BINARY') { |
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$modified = true; |
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$config['columnDefinition'] = $config['type']->getSQLDeclaration($config, $platform) . ' CHARACTER SET utf8 COLLATE utf8_bin' . $platform->getDefaultValueDeclarationSQL($config); |
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} |
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if (str_starts_with(strtolower(trim($config['comment'])), 'set')) { |
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$modified = true; |
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$config['columnDefinition'] = $config['comment'] . $platform->getDefaultValueDeclarationSQL($config); |
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} |
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if (!empty($config['columnDefinition']) && $platform->supportsInlineColumnComments()) { |
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$config['columnDefinition'] .= " COMMENT " . $platform->quoteStringLiteral($config['comment']); |
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} |
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} |
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} |
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} |
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if (!$modified) { |
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return; |
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} |
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$args->preventDefault(); |
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//The following is basically copied from the respective Doctrine function, since there seems to be no way |
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//to just modify columns and pass them back to the SchemaManager |
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$table = $args->getTable(); |
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$options = $args->getOptions(); |
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$queryFields = $platform->getColumnDeclarationListSQL($columns); |
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if (!empty($options['uniqueConstraints'])) { |
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foreach ($options['uniqueConstraints'] as $name => $definition) { |
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$queryFields .= ', ' . $platform->getUniqueConstraintDeclarationSQL($name, $definition); |
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} |
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} |
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if (!empty($options['foreignKeys'])) { |
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foreach ($options['foreignKeys'] as $foreignKey) { |
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$queryFields .= ', ' . $platform->getForeignKeyDeclarationSQL($foreignKey); |
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} |
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} |
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$name = str_replace('.', '__', $table->getName()); |
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$args->addSql('CREATE TABLE ' . $name . ' (' . $queryFields . ')'); |
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1 |
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if (isset($options['alter']) && true === $options['alter']) { |
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return; |
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} |
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1 |
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if (!empty($options['indexes'])) { |
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foreach ($options['indexes'] as $indexDef) { |
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$args->addSql($platform->getCreateIndexSQL($indexDef, $name)); |
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} |
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} |
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1 |
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if (!empty($options['unique'])) { |
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foreach ($options['unique'] as $indexDef) { |
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$args->addSql($platform->getCreateIndexSQL($indexDef, $name)); |
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} |
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} |
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} |
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/** |
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* This function contains workarounds for reading existing Midgard databases |
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* |
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* ENUM fields are converted to string for now (Like in the XML reader) |
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*/ |
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3 |
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public function onSchemaColumnDefinition(SchemaColumnDefinitionEventArgs $args) |
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{ |
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3 |
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$column = array_change_key_case($args->getTableColumn(), CASE_LOWER); |
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3 |
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$type = strtok($column['type'], '()'); |
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262
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3 |
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if ($type == 'enum') { |
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$options = [ |
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'length' => 255, |
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'default' => $column['default'] ?? null, |
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'notnull' => $column['null'] != 'YES', |
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'comment' => $column['type'] |
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]; |
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270
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$args->preventDefault(); |
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$args->setColumn(new Column($column['field'], Type::getType(Types::STRING), $options)); |
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} |
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} |
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/** |
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* This is mostly a workaround for the fact that SchemaTool wants to create FKs on |
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* each run since it doesn't detect that MyISAM tables don't support them |
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* |
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* @see https://github.com/doctrine/orm/issues/4270 |
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280
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*/ |
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281
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5 |
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public function postGenerateSchemaTable(GenerateSchemaTableEventArgs $args) |
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282
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{ |
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283
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5 |
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$table = $args->getClassTable(); |
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284
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5 |
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if ( !$table->hasOption('engine') |
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285
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5 |
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|| $table->getOption('engine') !== 'MyISAM') { |
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return; |
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287
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} |
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288
|
5 |
|
foreach ($table->getForeignKeys() as $key) { |
|
289
|
4 |
|
$table->removeForeignKey($key->getName()); |
|
290
|
|
|
} |
|
291
|
|
|
} |
|
292
|
|
|
|
|
293
|
7 |
|
public function getSubscribedEvents() |
|
294
|
|
|
{ |
|
295
|
7 |
|
return [ |
|
296
|
7 |
|
Events::postLoad, |
|
297
|
7 |
|
Events::onFlush, |
|
298
|
7 |
|
dbal_events::onSchemaCreateTable, dbal_events::onSchemaColumnDefinition, |
|
|
|
|
|
|
299
|
7 |
|
ToolEvents::postGenerateSchemaTable |
|
300
|
7 |
|
]; |
|
301
|
|
|
} |
|
302
|
|
|
} |
|
303
|
|
|
|
flack /
midgard-portable
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