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<?php |
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namespace SamIT\Yii2\Behaviors; |
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use SamIT\Yii2\Components\Map; |
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use yii\base\Behavior; |
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use yii\db\ActiveRecord; |
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/** |
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* JsonBehavior |
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* Automatically converts to / from json before saving / after reading. |
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* |
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*/ |
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class JsonBehavior extends Behavior |
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{ |
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public $jsonAttributes = []; |
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public $defaultAttribute; |
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public function events() |
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{ |
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return [ |
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ActiveRecord::EVENT_BEFORE_INSERT => 'beforeSave', |
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ActiveRecord::EVENT_BEFORE_UPDATE => 'beforeSave', |
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ActiveRecord::EVENT_AFTER_FIND => 'afterFind', |
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]; |
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} |
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/** |
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* |
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*/ |
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protected function createMaps() |
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{ |
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foreach($this->jsonAttributes as $attribute) { |
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if(!$this->owner->$attribute instanceof Map) { |
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$this->owner->$attribute = new Map($this->owner->$attribute); |
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} |
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} |
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} |
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public function attach($owner): void |
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{ |
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parent::attach($owner); |
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$this->createMaps(); |
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} |
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public function afterFind(): void |
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{ |
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$this->createMaps(); |
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} |
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public function beforeSave(): bool |
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{ |
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$this->createMaps(); |
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return true; |
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} |
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public function canGetProperty($name, $checkVars = true) |
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{ |
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// Only do this if we have exactly 1 json attribute. |
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return isset($this->defaultAttribute) |
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|| parent::canGetProperty($name, $checkVars); |
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} |
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public function canSetProperty($name, $checkVars = true) |
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{ |
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return isset($this->defaultAttribute) |
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|| parent::canSetProperty($name, $checkVars); |
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} |
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public function __set($name, $value) |
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{ |
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if (parent::canSetProperty($name, false)) { |
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parent::__set($name, $value); |
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} elseif (isset($this->defaultAttribute)) { |
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$this->owner->{$this->defaultAttribute}[$name] = $value; |
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} else { |
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// Throw standard error: |
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parent::__set($name, $value); |
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} |
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} |
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public function __get($name) |
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{ |
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if (isset($this->defaultAttribute)) { |
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if (isset($this->owner->{$this->defaultAttribute}[$name])) { |
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return $this->owner->{$this->defaultAttribute}[$name]; |
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} |
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return null; |
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} |
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return parent::__get($name); |
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} |
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/** |
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* Initializes the object. |
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* This method is invoked at the end of the constructor after the object is initialized with the |
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* given configuration. |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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if(!isset($this->defaultAttribute) && count($this->jsonAttributes) == 1) { |
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$this->defaultAttribute = $this->jsonAttributes[0]; |
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} |
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} |
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} |