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<?php |
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/** |
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* _ __ __ _____ _____ ___ ____ _____ |
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* | | / // // ___//_ _// || __||_ _| |
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* | |/ // /(__ ) / / / /| || | | | |
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* |___//_//____/ /_/ /_/ |_||_| |_| |
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* @link http://vistart.name/ |
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* @copyright Copyright (c) 2016 vistart |
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* @license http://vistart.name/license/ |
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*/ |
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namespace vistart\Models\traits; |
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use Yii; |
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use yii\base\ModelEvent; |
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/** |
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* This trait allow its owner to enable the entity to be blamed by user. |
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* @property-read boolean $isConfirmed |
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* @property integer $confirmation |
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* @property-read array $confirmationRules |
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* @property string $confirmCode the confirm code used for confirming the content. |
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* You can disable this attribute and create a new model for storing confirm code as |
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* its low-frequency usage. |
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* @version 2.0 |
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* @author vistart <[email protected]> |
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*/ |
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trait ConfirmationTrait |
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{ |
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/** |
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* @var int Unconfirmed. |
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*/ |
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public static $confirmFalse = 0; |
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/** |
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* @var int Confirmed. |
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*/ |
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public static $confirmTrue = 1; |
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/** |
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* @var string|false attribute name of confirmation, or false if disable confirmation features. |
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*/ |
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public $confirmationAttribute = false; |
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/** |
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* @var string This attribute specify the name of confirm_code attribute, if |
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* this attribute is assigned to false, this feature will be ignored. |
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* if $confirmationAttribute is empty or false, this attribute will be skipped. |
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*/ |
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public $confirmCodeAttribute = 'confirm_code'; |
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/** |
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* @var integer The expiration in seconds. If $confirmCodeAttribute is |
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* specified, this attribute must be specified. |
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*/ |
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public $confirmCodeExpiration = 3600; |
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/** |
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* @var string This attribute specify the name of confirm_time attribute. if |
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* this attribute is assigned to false, this feature will be ignored. |
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* if $confirmationAttribute is empty or false, this attribute will be skipped. |
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*/ |
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public $confirmTimeAttribute = 'confirm_time'; |
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/** |
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* @var string initialization confirm time. |
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*/ |
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public $initConfirmTime = '1970-01-01 00:00:00'; |
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public static $eventConfirmationChanged = "confirmationChanged"; |
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public static $eventConfirmationCanceled = "confirmationCanceled"; |
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public static $eventConfirmationSuceeded = "confirmationSucceeded"; |
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/** |
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* Apply confirmation. |
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* @return boolean |
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* @throws \yii\base\NotSupportedException |
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*/ |
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public function applyConfirmation() |
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{ |
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if (!$this->confirmCodeAttribute) { |
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throw new \yii\base\NotSupportedException('This method is not implemented.'); |
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} |
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$this->confirmCode = $this->generateConfirmationCode(); |
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if (!$this->save()) { |
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return false; |
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} |
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} |
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/** |
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* Set confirm code. |
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* @param string $code |
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*/ |
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public function setConfirmCode($code) |
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{ |
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if (!$this->confirmCodeAttribute) { |
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return; |
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} |
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$confirmCodeAttribute = $this->confirmCodeAttribute; |
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$this->$confirmCodeAttribute = $code; |
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if (!$this->confirmTimeAttribute) { |
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return; |
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} |
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$confirmTimeAttribute = $this->confirmTimeAttribute; |
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if (!empty($code)) { |
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$this->$confirmTimeAttribute = date('Y-m-d H:i:s'); |
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return; |
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} |
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$this->$confirmTimeAttribute = $this->initConfirmTime; |
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} |
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/** |
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* Get confirm code. |
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* @return string |
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*/ |
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public function getConfirmCode() |
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{ |
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$confirmCodeAttribute = $this->confirmCodeAttribute; |
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return is_string($confirmCodeAttribute) ? $this->$confirmCodeAttribute : null; |
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} |
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/** |
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* Confirm the current content. |
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* @param string $code |
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* @return boolean |
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*/ |
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public function confirm($code) |
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{ |
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if (!$this->confirmationAttribute || !$this->validateConfirmationCode($code)) { |
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return false; |
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} |
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$this->confirmation = self::$confirmTrue; |
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return $this->save(); |
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} |
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/** |
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* Generate confirmation code. |
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* @return string code |
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*/ |
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public function generateConfirmationCode() |
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{ |
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return substr(sha1(Yii::$app->security->generateRandomString()), 0, 8); |
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} |
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/** |
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* Validate the confirmation code. |
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* @param string $code |
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* @return boolean Whether the confirmation code is valid. |
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*/ |
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public function validateConfirmationCode($code) |
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{ |
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$ccAttribute = $this->confirmCodeAttribute; |
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if (!$ccAttribute) { |
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return true; |
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} |
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return $this->$ccAttribute === $code; |
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} |
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/** |
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* Get confirmation status of current model. |
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* @return boolean Whether current model has been confirmed. |
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*/ |
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public function getIsConfirmed() |
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{ |
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$cAttribute = $this->confirmationAttribute; |
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return is_string($cAttribute) ? $this->$cAttribute > static::$confirmFalse : true; |
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} |
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/** |
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* Initialize the confirmation status. |
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* This method is ONLY used for being triggered by event. DO NOT call, |
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* override or modify it directly, unless you know the consequences. |
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* @param ModelEvent $event |
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*/ |
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public function onInitConfirmation($event) |
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{ |
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$sender = $event->sender; |
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if (!$sender->confirmationAttribute) { |
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return; |
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} |
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$sender->confirmation = self::$confirmFalse; |
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$sender->confirmCode = ''; |
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} |
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/** |
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* Set confirmation. |
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* @param mixed $value |
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*/ |
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public function setConfirmation($value) |
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{ |
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$cAttribute = $this->confirmationAttribute; |
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if (!$cAttribute) { |
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return; |
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} |
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$this->$cAttribute = $value; |
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$this->trigger(self::$eventConfirmationChanged); |
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} |
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/** |
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* Get confirmation. |
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* @return mixed |
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*/ |
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public function getConfirmation() |
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{ |
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$cAttribute = $this->confirmationAttribute; |
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return is_string($cAttribute) ? $this->$cAttribute : null; |
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} |
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/** |
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* When confirmation status changed, this event will be triggered. If |
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* confirmation succeeded, the confirm_time will be assigned to current time, |
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* or the confirm_time will be assigned to initConfirmTime. |
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* This method is ONLY used for being triggered by event. DO NOT call, |
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* override or modify it directly, unless you know the consequences. |
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* @param ModelEvent $event |
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*/ |
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public function onConfirmationChanged($event) |
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{ |
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$sender = $event->sender; |
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$cAttribute = $sender->confirmationAttribute; |
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if (!$cAttribute) { |
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return; |
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} |
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if ($sender->isAttributeChanged($cAttribute)) { |
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$sender->confirmCode = ''; |
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if ($sender->$cAttribute == self::$confirmFalse) { |
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$sender->trigger(self::$eventConfirmationCanceled); |
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return; |
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} |
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$sender->trigger(self::$eventConfirmationSuceeded); |
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$sender->resetOthersConfirmation(); |
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} |
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} |
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/** |
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* Get rules associated with confirmation attributes. |
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* if not enable confirmation feature, it will return empty array. |
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* @return array |
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*/ |
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public function getConfirmationRules() |
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{ |
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if (!$this->confirmationAttribute) { |
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return []; |
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} |
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return [ |
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[[$this->confirmationAttribute], 'number', 'integerOnly' => true, 'min' => 0], |
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[[$this->confirmTimeAttribute], 'safe'], |
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]; |
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} |
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/** |
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* When the content changed, reset confirmation status. |
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*/ |
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protected function resetConfirmation() |
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{ |
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$contentAttribute = $this->contentAttribute; |
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if (!$contentAttribute) { |
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return; |
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} |
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if (is_array($contentAttribute)) { |
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foreach ($contentAttribute as $attribute) { |
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if ($this->isAttributeChanged($attribute)) { |
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$this->confirmation = self::$confirmFalse; |
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break; |
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} |
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} |
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} elseif ($this->isAttributeChanged($contentAttribute)) { |
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$this->confirmation = self::$confirmFalse; |
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} |
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} |
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/** |
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* Reset others' confirmation when the others own the same content. |
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*/ |
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protected function resetOthersConfirmation() |
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{ |
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if (!$this->confirmationAttribute || empty($this->userClass)) { |
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return; |
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} |
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$contents = self::find() |
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->where([$this->contentAttribute => $this->content]) |
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->andWhere(['not', $this->createdByAttribute, $this->creator]) |
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->all(); |
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foreach ($contents as $content) { |
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$content->confirmation = self::$confirmFalse; |
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$content->save(); |
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} |
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} |
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} |
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This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.