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<?php |
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declare(strict_types=1); |
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namespace Cycle\Schema\Generator; |
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use Cycle\ORM\Relation; |
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use Cycle\Schema\Definition\Entity; |
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use Cycle\Schema\Exception\RegistryException; |
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use Cycle\Schema\Exception\RelationException; |
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use Cycle\Schema\Exception\SchemaException; |
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use Cycle\Schema\GeneratorInterface; |
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use Cycle\Schema\InversableInterface; |
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use Cycle\Schema\Registry; |
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use Cycle\Schema\Relation as Definition; |
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use Cycle\Schema\Relation\OptionSchema; |
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use Cycle\Schema\Relation\RelationSchema; |
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use Cycle\Schema\RelationInterface; |
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/** |
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* Generate relations based on their schematic definitions. |
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*/ |
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final class GenerateRelations implements GeneratorInterface |
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{ |
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// aliases between option names and their internal IDs |
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public const OPTION_MAP = [ |
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'nullable' => Relation::NULLABLE, |
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'cascade' => Relation::CASCADE, |
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'load' => Relation::LOAD, |
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'innerKey' => Relation::INNER_KEY, |
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'outerKey' => Relation::OUTER_KEY, |
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'morphKey' => Relation::MORPH_KEY, |
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'through' => Relation::THROUGH_ENTITY, |
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'throughInnerKey' => Relation::THROUGH_INNER_KEY, |
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'throughOuterKey' => Relation::THROUGH_OUTER_KEY, |
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'throughWhere' => Relation::THROUGH_WHERE, |
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'where' => Relation::WHERE, |
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'collection' => Relation::COLLECTION_TYPE, |
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'orderBy' => Relation::ORDER_BY, |
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'fkCreate' => RelationSchema::FK_CREATE, |
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'fkAction' => RelationSchema::FK_ACTION, |
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'fkOnDelete' => RelationSchema::FK_ON_DELETE, |
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'indexCreate' => RelationSchema::INDEX_CREATE, |
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'morphKeyLength' => RelationSchema::MORPH_KEY_LENGTH, |
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'embeddedPrefix' => RelationSchema::EMBEDDED_PREFIX, |
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// deprecated |
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'though' => Relation::THROUGH_ENTITY, |
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'thoughInnerKey' => Relation::THROUGH_INNER_KEY, |
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'thoughOuterKey' => Relation::THROUGH_OUTER_KEY, |
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'thoughWhere' => Relation::THROUGH_WHERE, |
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]; |
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/** @var OptionSchema */ |
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private $options; |
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/** @var RelationInterface[] */ |
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private $relations = []; |
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/** |
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* @param array|null $relations |
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* @param OptionSchema|null $optionSchema |
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*/ |
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1192 |
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public function __construct(array $relations = null, OptionSchema $optionSchema = null) |
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{ |
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1192 |
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$relations = $relations ?? self::getDefaultRelations(); |
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1192 |
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$this->options = $optionSchema ?? new OptionSchema(self::OPTION_MAP); |
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1192 |
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foreach ($relations as $id => $relation) { |
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1192 |
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if (!$relation instanceof RelationInterface) { |
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throw new \InvalidArgumentException( |
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sprintf( |
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'Invalid relation type, RelationInterface excepted, `%s` given', |
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is_object($relation) ? get_class($relation) : gettype($relation) |
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) |
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); |
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} |
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1192 |
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$this->relations[$id] = $relation; |
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} |
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} |
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/** |
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* @param Registry $registry |
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* |
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* @return Registry |
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*/ |
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public function run(Registry $registry): Registry |
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{ |
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1168 |
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foreach ($registry as $entity) { |
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1168 |
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$this->register($registry, $entity); |
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} |
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foreach ($registry as $entity) { |
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$this->inverse($registry, $entity); |
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} |
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return $registry; |
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} |
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/** |
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* @param Registry $registry |
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* @param Entity $entity |
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*/ |
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protected function register(Registry $registry, Entity $entity): void |
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{ |
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$role = $entity->getRole(); |
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\assert($role !== null); |
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foreach ($entity->getRelations() as $name => $r) { |
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$schema = $this->initRelation($r->getType())->withContext( |
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$name, |
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$role, |
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$r->getTarget(), |
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$this->options->withOptions($r->getOptions()) |
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); |
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1168 |
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// compute relation values (field names, related entities and etc) |
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try { |
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$schema->compute($registry); |
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} catch (RelationException $e) { |
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throw new SchemaException( |
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"Unable to compute relation `{$role}`.`{$name}`", |
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$e->getCode(), |
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$e |
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984 |
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); |
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} |
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1032 |
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$registry->registerRelation($entity, $name, $schema); |
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} |
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} |
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/** |
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984 |
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* @param Registry $registry |
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* @param Entity $entity |
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*/ |
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protected function inverse(Registry $registry, Entity $entity): void |
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{ |
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foreach ($entity->getRelations() as $name => $r) { |
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if (!$r->isInversed()) { |
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continue; |
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} |
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$inverseName = $r->getInverseName(); |
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$inverseType = $r->getInverseType(); |
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\assert(!empty($inverseName) && !empty($inverseType)); |
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$schema = $registry->getRelation($entity, $name); |
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if (!$schema instanceof InversableInterface) { |
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throw new SchemaException('Unable to inverse relation of type ' . get_class($schema)); |
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} |
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foreach ($schema->inverseTargets($registry) as $target) { |
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try { |
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$inversed = $schema->inverseRelation( |
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$this->initRelation($inverseType), |
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$inverseName, |
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$r->getInverseLoad() |
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); |
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$registry->registerRelation($target, $inverseName, $inversed); |
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} catch (RelationException $e) { |
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throw new SchemaException( |
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"Unable to inverse relation `{$entity->getRole()}`.`{$name}`", |
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$e->getCode(), |
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$e |
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); |
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} |
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} |
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} |
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} |
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/** |
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* @param string $type |
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* |
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* @return RelationInterface |
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*/ |
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protected function initRelation(string $type): RelationInterface |
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{ |
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if (!isset($this->relations[$type])) { |
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throw new RegistryException("Undefined relation type `{$type}`"); |
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} |
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return $this->relations[$type]; |
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} |
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120 |
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/** |
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* @return array |
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*/ |
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protected static function getDefaultRelations(): array |
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{ |
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return [ |
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'embedded' => new Definition\Embedded(), |
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'belongsTo' => new Definition\BelongsTo(), |
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'hasOne' => new Definition\HasOne(), |
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'hasMany' => new Definition\HasMany(), |
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'refersTo' => new Definition\RefersTo(), |
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'manyToMany' => new Definition\ManyToMany(), |
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'belongsToMorphed' => new Definition\Morphed\BelongsToMorphed(), |
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'morphedHasOne' => new Definition\Morphed\MorphedHasOne(), |
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'morphedHasMany' => new Definition\Morphed\MorphedHasMany(), |
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]; |
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} |
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} |
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cycle /
schema-builder
