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<?php |
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namespace Koch\Casters; |
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use Closure; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Database\Eloquent\Collection; |
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use Koch\Casters\Behavior\BuildsCastQueries; |
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use Koch\Casters\Contracts\Caster as CasterContract; |
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abstract class Caster implements CasterContract |
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{ |
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use BuildsCastQueries; |
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/** |
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* Determines the function sign. |
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* |
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* @var string |
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*/ |
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private $functionSign = '@'; |
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/** |
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* Determines the query sign. |
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* |
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* @var string |
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*/ |
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private $querySign = '!'; |
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/** |
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* Casts collection fields. |
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* |
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* @param mixed $model |
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* @return array |
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*/ |
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public function cast($model) |
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{ |
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if ($model instanceof Collection) { |
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return $model->map([$this, 'cast'])->toArray(); |
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} |
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if (empty($model)) { |
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return; |
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} |
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$transformed = []; |
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foreach ($this->castRules() as $old => $desired) { |
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$this->resolveCast($old, $desired, $model, $transformed); |
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} |
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return $transformed; |
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} |
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/** |
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* Resolves casts based on supplied array of arguments. |
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* |
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* @param string $old |
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* @param string|Closure $desired |
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* @param \Illuminate\Database\Eloquent\Model $model |
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* @param array &$transformed |
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* @return array |
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*/ |
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private function resolveCast($old, $desired, Model $model, &$transformed) |
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{ |
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if ($desired instanceof Closure) { |
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return $transformed[$old] = call_user_func($desired, $model); |
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} |
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if (is_string($desired) && strpos($desired, $this->functionSign) !== false) { |
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return $transformed[$old] = call_user_func([$this, substr($desired, 1)], $model); |
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} |
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if (is_string($desired) && strpos($desired, $this->querySign) !== false) { |
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return $this->parse($old, substr($desired, 1), $model, $transformed); |
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} |
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if (is_string($old)) { |
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return $transformed[$desired] = $model->$old; |
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} |
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return $transformed[$desired] = $model->$desired; |
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} |
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/** |
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* Returns the cast rules. |
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* |
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* @return array |
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*/ |
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abstract protected function castRules(); |
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} |
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kouks /
laravel-casters
