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<?php |
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/** |
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* components |
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* |
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* @author Wolfy-J |
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*/ |
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namespace Spiral\ORM\Schemas\Relations\Traits; |
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use Spiral\Database\Schemas\Prototypes\AbstractColumn; |
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use Spiral\ORM\Exceptions\RelationSchemaException; |
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use Spiral\ORM\ORMInterface; |
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use Spiral\ORM\Record; |
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use Spiral\ORM\Schemas\Definitions\RelationDefinition; |
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use Spiral\ORM\Schemas\SchemaBuilder; |
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/** |
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* Helps to locate all outer records matching given interface. |
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*/ |
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trait MorphedTrait |
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{ |
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/** |
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* Resolving outer key. |
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* |
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* @param \Spiral\ORM\Schemas\SchemaBuilder $builder |
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* |
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* @return \Spiral\Database\Schemas\Prototypes\AbstractColumn|null When no outer records found |
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* NULL will be returned. |
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*/ |
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protected function findOuter(SchemaBuilder $builder) |
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{ |
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foreach ($this->findTargets($builder) as $schema) { |
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$outerTable = $builder->requestTable($schema->getTable(), $schema->getDatabase()); |
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$outerKey = $this->option(Record::OUTER_KEY); |
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if ($outerKey == ORMInterface::R_PRIMARY_KEY) { |
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$outerKey = current($outerTable->getPrimaryKeys()); |
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} |
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if (!$outerTable->hasColumn($outerKey)) { |
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throw new RelationSchemaException(sprintf("Outer key '%s'.'%s' (%s) does not exists", |
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$outerTable->getName(), |
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$outerKey, |
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$this->getDefinition()->getName() |
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)); |
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} |
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return $outerTable->column($outerKey); |
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} |
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return null; |
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} |
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/** |
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* Make sure all tables have same outer key. |
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* |
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* @param \Spiral\ORM\Schemas\SchemaBuilder $builder |
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* @param \Spiral\Database\Schemas\Prototypes\AbstractColumn $column |
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* |
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* @throws RelationSchemaException |
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*/ |
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protected function verifyOuter(SchemaBuilder $builder, AbstractColumn $column) |
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{ |
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foreach ($this->findTargets($builder) as $schema) { |
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$outerTable = $builder->requestTable($schema->getTable(), $schema->getDatabase()); |
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if (!$outerTable->hasColumn($column->getName())) { |
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//Column is missing |
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throw new RelationSchemaException( |
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"Unable to build morphed relation, outer key '{$column->getName()}' " |
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. "is missing in '{$outerTable->getName()}'" |
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); |
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} |
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if ($outerTable->column($column->getName())->phpType() != $column->phpType()) { |
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//Inconsistent type |
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throw new RelationSchemaException( |
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"Unable to build morphed relation, outer key '{$column->getName()}' " |
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. "has different type in '{$outerTable->getName()}'" |
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); |
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} |
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} |
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} |
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/** |
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* Find all matched schemas. |
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* |
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* @param \Spiral\ORM\Schemas\SchemaBuilder $builder |
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* |
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* @return \Generator|\Spiral\ORM\Schemas\SchemaInterface[] |
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*/ |
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protected function findTargets(SchemaBuilder $builder): \Generator |
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{ |
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foreach ($builder->getSchemas() as $schema) { |
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if (!is_a($schema->getClass(), $this->getDefinition()->getTarget(), true)) { |
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//Not our targets |
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continue; |
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} |
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yield $schema; |
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} |
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} |
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/** |
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* @return \Spiral\ORM\Schemas\Definitions\RelationDefinition |
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*/ |
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abstract public function getDefinition(): RelationDefinition; |
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/** |
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* @param string $key |
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* |
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* @return mixed |
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*/ |
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abstract protected function option(string $key); |
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} |
spiral /
components
