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<?php |
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/** |
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* Created by PhpStorm. |
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* User: alex |
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* Date: 13/02/20 |
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* Time: 1:08 PM. |
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*/ |
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namespace AlgoWeb\PODataLaravel\Models; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Database\Eloquent\Relations\BelongsTo; |
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use Illuminate\Database\Eloquent\Relations\HasManyThrough; |
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use Illuminate\Database\Eloquent\Relations\MorphMany; |
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use Illuminate\Database\Eloquent\Relations\MorphOne; |
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use Illuminate\Database\Eloquent\Relations\MorphToMany; |
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use Illuminate\Database\Eloquent\Relations\Relation; |
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use Mockery\Mock; |
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use POData\Common\InvalidOperationException; |
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trait MetadataRelationsTrait |
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{ |
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/** |
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* Get model's relationships. |
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* |
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* @throws InvalidOperationException |
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* @throws \ReflectionException |
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* @return array |
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*/ |
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public function getRelationships() |
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{ |
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return $this->getRelationshipsFromMethods(); |
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} |
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/** |
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* @param \ReflectionMethod $method |
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* @throws InvalidOperationException |
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* @return string |
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*/ |
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protected function getCodeForMethod(\ReflectionMethod $method) : string |
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{ |
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$fileName = $method->getFileName(); |
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$file = new \SplFileObject($fileName); |
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$file->seek($method->getStartLine() - 1); |
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$code = ''; |
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while ($file->key() < $method->getEndLine()) { |
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$code .= $file->current(); |
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$file->next(); |
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} |
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$code = trim(preg_replace('/\s\s+/', '', $code)); |
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$begin = strpos($code, 'function('); |
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$code = substr($code, $begin, strrpos($code, '}') - $begin + 1); |
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$lastCode = $code[strlen($code) - 1]; |
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return $code; |
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} |
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/** |
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* @param Model $model |
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* @return array |
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*/ |
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protected function getModelClassMethods(Model $model) |
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{ |
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// TODO: Handle case when Mock::class not present |
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return array_diff( |
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get_class_methods($model), |
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get_class_methods(\Illuminate\Database\Eloquent\Model::class), |
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get_class_methods(Mock::class), |
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get_class_methods(MetadataTrait::class) |
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); |
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} |
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/** |
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* @param bool $biDir |
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* |
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* @throws InvalidOperationException |
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* @throws \ReflectionException |
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* @return array |
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*/ |
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protected function getRelationshipsFromMethods() |
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{ |
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/*$biDirVal = true; |
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$isCached = isset(static::$relationCategories[$biDirVal]) && !empty(static::$relationCategories[$biDirVal]); |
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if ($isCached) { |
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return static::$relationCategories[$biDirVal]; |
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}*/ |
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$relationships = []; |
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/** @var Model $model */ |
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$model = $this; |
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$methods = $this->getModelClassMethods($model); |
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foreach ($methods as $method) { |
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//Use reflection to inspect the code, based on Illuminate/Support/SerializableClosure.php |
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$reflection = new \ReflectionMethod($model, $method); |
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$code = $this->getCodeForMethod($reflection); |
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foreach (static::$relTypes as $relation) { |
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//Resolve the relation's model to a Relation object. |
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if ( |
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!stripos($code, sprintf('$this->%s(', $relation)) || |
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!(($relationObj = $model->$method()) instanceof Relation) || |
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!in_array(MetadataTrait::class, class_uses($relationObj->getRelated())) |
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) { |
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continue; |
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} |
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$relationships[]= $method; |
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} |
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} |
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return $relationships; |
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} |
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} |
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Algo-Web /
POData-Laravel
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