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<?php |
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namespace AlgoWeb\PODataLaravel\Serialisers; |
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use AlgoWeb\PODataLaravel\Query\LaravelReadQuery; |
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use Illuminate\Database\Eloquent\Model; |
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class ModelSerialiser |
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{ |
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// take a supplied Eloquent model with metadata trait and serialise it in bulk. |
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// Upstream POData implementation has an N+1 lookup problem that interacts badly with how |
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// Eloquent handles property accesses |
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private static $mutatorCache = []; |
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private static $metadataCache = []; |
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public function __construct() |
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{ |
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} |
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/** |
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* Serialise needed bits of supplied model, taking fast path where possible. |
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* |
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* @param $model |
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* |
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* @return mixed |
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*/ |
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public function bulkSerialise($model) |
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{ |
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$class = get_class($model); |
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assert($model instanceof Model, $class); |
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// dig up metadata |
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if (!isset(self::$metadataCache[$class])) { |
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self::$metadataCache[$class] = $model->metadata(); |
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} |
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$model->synthLiteralPK(); |
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$meta = self::$metadataCache[$class]; |
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$keys = array_keys($meta); |
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// dig up getter list - we only care about the mutators that end up in metadata |
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if (!isset(self::$mutatorCache[$class])) { |
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$getterz = []; |
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$datez = $model->getDates(); |
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$castz = $model->retrieveCasts(); |
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foreach ($keys as $key) { |
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if ($model->hasGetMutator($key) || in_array($key, $datez) || array_key_exists($key, $castz)) { |
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$getterz[] = $key; |
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} |
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} |
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self::$mutatorCache[$class] = $getterz; |
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} |
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$getterz = self::$mutatorCache[$class]; |
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$modelAttrib = $model->getAttributes(); |
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$result = array_intersect_key($modelAttrib, $meta); |
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foreach ($keys as $key) { |
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if (!isset($result[$key])) { |
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$result[$key] = null; |
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} |
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} |
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foreach ($getterz as $getter) { |
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$result[$getter] = $model->$getter; |
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} |
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if (isset($modelAttrib[LaravelReadQuery::PK])) { |
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$result[LaravelReadQuery::PK] = $modelAttrib[LaravelReadQuery::PK]; |
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} |
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return $result; |
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} |
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public function reset() |
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{ |
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self::$mutatorCache = []; |
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self::$metadataCache = []; |
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} |
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} |
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Algo-Web /
POData-Laravel
