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<?php |
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namespace StoutLogic\AcfBuilder; |
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/** |
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* Builds a configuration. |
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* Can have parent contexts to delegate missing methods to. |
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*/ |
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abstract class ParentDelegationBuilder implements Builder |
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{ |
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/** |
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* The parent Builder, if this is a child Builder |
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* @var Builder |
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*/ |
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private $parentContext; |
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/** |
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* Builds the configuration |
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* @return array configuration |
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*/ |
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abstract public function build(); |
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/** |
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* @param Builder $builder |
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*/ |
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public function setParentContext(Builder $builder) |
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{ |
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$this->parentContext = $builder; |
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} |
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/** |
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* @return Builder |
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*/ |
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public function getParentContext() |
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{ |
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return $this->parentContext; |
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} |
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/** |
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* Returns the root context |
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* @return Builder |
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*/ |
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public function getRootContext() |
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{ |
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if ($parentContext = $this->getParentContext()) { |
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if ($parentContext instanceof ParentDelegationBuilder) { |
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return $parentContext->getRootContext(); |
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} |
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return $parentContext; |
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} |
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return $this; |
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} |
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/** |
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* If a method is missing, check to see if it exist on the $parentContext |
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* and delegate the call to it. |
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* @param string $method |
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* @param array $args |
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* @throws \Exception when a method is not found on the $parentContext |
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* @return mixed |
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*/ |
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public function __call($method, $args) |
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{ |
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if ($this->parentContext) { |
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return call_user_func_array([$this->parentContext, $method], $args); |
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} |
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throw new \Exception('No such function: '.$method); |
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} |
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} |
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StoutLogic /
acf-builder
