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<?php declare(strict_types=1); |
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namespace Suricate; |
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class PivotTable extends DBObject |
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{ |
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protected $references = []; |
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protected $collectionClass = DBCollection::class; |
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public function __construct() |
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{ |
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parent::__construct(); |
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foreach ($this->references as $referenceName => $referenceData) { |
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$this->relations[$referenceName] = [ |
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'type' => self::RELATION_ONE_ONE, |
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'source' => $referenceData['key'], |
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'target' => $referenceData['type'] |
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]; |
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} |
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} |
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public function getCollectionClass() |
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{ |
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return $this->collectionClass; |
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} |
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public static function loadFor( |
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$relation, |
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$parentId, |
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$target = null, |
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$validate = null |
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) { |
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$pivot = new static(); |
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$pivot->connectDB(); |
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$items = []; |
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if ($target !== null) { |
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$className = $pivot->getTargetForRelation($target); |
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$targetClass = $className; |
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$sourceField = $pivot->getSourceFieldForRelation($target); |
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$query = "SELECT t.* FROM " . $className::tableName() . " t"; |
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$query .= " LEFT JOIN " . $pivot->getTableName() . " p"; |
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$query .= |
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" ON p.`" . |
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$sourceField . |
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"`=t." . |
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$className::tableIndex(); |
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$query .= " WHERE"; |
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$query .= |
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" `" . |
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$pivot->getSourceFieldForRelation($relation) . |
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"` = :id"; |
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$query .= " GROUP BY t." . $targetClass::tableIndex(); |
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} else { |
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$query = "SELECT *"; |
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$query .= " FROM `" . $pivot->getTableName() . "`"; |
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$query .= " WHERE"; |
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$query .= |
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" `" . |
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$pivot->getSourceFieldForRelation($relation) . |
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"` = :id"; |
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$targetClass = $pivot; |
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} |
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$params = ['id' => $parentId]; |
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$results = $pivot->dbLink |
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->query($query, $params) |
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->fetchAll(\PDO::FETCH_ASSOC); |
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foreach ($results as $result) { |
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$add = true; |
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$itemToAdd = $targetClass::instanciate($result); |
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if ($validate !== null && is_callable($validate)) { |
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$add = $validate($itemToAdd); |
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} |
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if ($add) { |
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$items[] = $itemToAdd; |
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} |
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} |
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$collectionClass = $pivot->getCollectionClass(); |
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return new $collectionClass($items); |
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} |
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public function getSourceFieldForRelation($relationName) |
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{ |
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if (isset($this->relations[$relationName])) { |
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return $this->relations[$relationName]['source']; |
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} |
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throw new \InvalidArgumentException( |
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'Cannot get field for relation "' . |
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$relationName . |
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'" : Unknown relation' |
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); |
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} |
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public function getTargetForRelation($relationName) |
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{ |
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if (isset($this->relations[$relationName])) { |
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return $this->relations[$relationName]['target']; |
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} |
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throw new \InvalidArgumentException( |
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'Cannot get target for relation "' . |
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$relationName . |
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'" : Unknown relation' |
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); |
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} |
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} |
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suricate-php /
framework
