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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 https://vistart.me/ |
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* @copyright Copyright (c) 2016 - 2017 vistart |
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* @license https://vistart.me/license/ |
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*/ |
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namespace rhosocial\base\models\traits; |
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use Closure; |
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use yii\base\ModelEvent; |
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use yii\behaviors\TimestampBehavior; |
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/** |
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* Entity features concerning timestamp. |
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* @property-read array $timestampBehaviors |
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* @property-read string|int createdAt |
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* @property-read string|int updatedAt |
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* @property-read array $createdAtRules |
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* @property-read array $updatedAtRules |
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* @property-read boolean isExpired |
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* @property int|false expiredAfter the expiration duration in seconds, or false if not expired. |
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* @version 1.0 |
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* @author vistart <[email protected]> |
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*/ |
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trait TimestampTrait |
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{ |
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/** |
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* @var string|false the attribute that receive datetime value |
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* Set this property to false if you do not want to record the creation time. |
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*/ |
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public $createdAtAttribute = 'created_at'; |
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/** |
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* @var string|false the attribute that receive datetime value. |
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* Set this property to false if you do not want to record the update time. |
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*/ |
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public $updatedAtAttribute = 'updated_at'; |
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/** |
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* @var string|false the attribute that determine when this entity expire. |
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* If this entity does not expire, set to false. |
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*/ |
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public $expiredAfterAttribute = false; |
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/** |
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* @var integer Determine the format of timestamp. |
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*/ |
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public $timeFormat = 0; |
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public static $timeFormatDatetime = 0; |
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public static $timeFormatTimestamp = 1; |
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public static $initDatetime = '1970-01-01 00:00:00'; |
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public static $initTimestamp = 0; |
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public $timeType = 0; |
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public static $timeTypeUtc = 0; |
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public static $timeTypeLocal = 1; |
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public static $timeTypes = [ |
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0 => 'GMT', |
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1 => 'local', |
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]; |
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/** |
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* @var Closure |
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*/ |
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public $expiredRemovingCallback; |
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public static $eventExpiredRemoved = 'expiredRemoved'; |
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/** |
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* Check this entity whether expired. |
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* This feature require creation time. If creation time didn't record, false |
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* is returned. |
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* This feature also need expiration duration. If expiration duration didn't |
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* record, false is returned. |
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* @return boolean |
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*/ |
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public function getIsExpired() |
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{ |
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$createdAt = $this->getCreatedAt(); |
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if ($this->getExpiredAfter() === false || $createdAt === null) { |
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return false; |
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} |
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if ($this->timeType == static::$timeTypeLocal) { |
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return $this->getDatetimeOffset($this->offsetDatetime($this->currentDatetime(), -$this->getExpiredAfter()), $createdAt) > 0; |
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} elseif ($this->timeType == static::$timeTypeUtc) { |
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return $this->getDatetimeOffset($this->offsetDatetime($this->currentUtcDatetime(), -$this->getExpiredAfter()), $createdAt) > 0; |
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} |
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return false; |
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} |
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/** |
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* Remove myself if expired. |
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* The `expiredRemovingCallback` will be called before removing itself, |
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* then it would trigger `static::$eventExpiredRemoved` event, and attach |
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* the removing results. |
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* @return boolean |
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*/ |
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public function removeIfExpired() |
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{ |
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if ($this->getIsExpired() && !$this->getIsNewRecord()) { |
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if (($this->expiredRemovingCallback instanceof Closure || is_array($this->expiredRemovingCallback)) && is_callable($this->expiredRemovingCallback)) { |
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call_user_func($this->expiredRemovingCallback, $this); |
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} |
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$result = $this->removeSelf(); |
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$this->trigger(static::$eventExpiredRemoved, new ModelEvent(['data' => ['result' => $result]])); |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Remove self. |
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* You can override this method for implementing more complex features. |
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* @see delete() |
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* @return integer |
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*/ |
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public function removeSelf() |
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{ |
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return $this->delete(); |
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} |
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/** |
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* We recommened you attach this event when after finding this active record. |
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* @param ModelEvent $event |
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* @return boolean |
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*/ |
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public function onRemoveExpired($event) |
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{ |
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return $event->sender->removeIfExpired(); |
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} |
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/** |
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* Get the current date & time in format of "Y-m-d H:i:s" or timestamp. |
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* You can override this method to customize the return value. |
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* @param ModelEvent $event |
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* @return string Date & Time. |
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*/ |
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public static function getCurrentDatetime($event) |
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{ |
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$sender = $event->sender; |
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/* @var $sender static */ |
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if ($sender->timeType == static::$timeTypeUtc) { |
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return $sender->currentUtcDatetime(); |
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} elseif ($sender->timeType == static::$timeTypeLocal) { |
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return $sender->currentDatetime(); |
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} |
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return null; |
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} |
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/** |
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* Get current date & time, by current time format. |
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* @return string|int Date & time string if format is datetime, or timestamp. |
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*/ |
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public function currentDatetime() |
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{ |
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if ($this->timeFormat === static::$timeFormatDatetime) { |
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return date('Y-m-d H:i:s'); |
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} |
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if ($this->timeFormat === static::$timeFormatTimestamp) { |
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return time(); |
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} |
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return null; |
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} |
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/** |
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* Get current Greenwich date & time (UTC), by current time format. |
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* @return string|int Date & time string if format is datetime, or timestamp. |
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*/ |
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public function currentUtcDatetime() |
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{ |
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if ($this->timeFormat === static::$timeFormatDatetime) { |
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return gmdate('Y-m-d H:i:s'); |
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} |
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if ($this->timeFormat === static::$timeFormatTimestamp) { |
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return time(); |
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} |
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return null; |
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} |
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/** |
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* Get offset date & time, by current time format. |
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* @param string|int $time Date &time string or timestamp. |
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* @param int $offset Offset in seconds. |
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* @return string|int Date & time string if format is datetime, or timestamp. |
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*/ |
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public function offsetDatetime($time = null, $offset = 0) |
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{ |
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if ($this->timeFormat === static::$timeFormatDatetime) { |
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return date('Y-m-d H:i:s', strtotime(($offset >= 0 ? "+$offset" : $offset) . " seconds", is_string($time) ? strtotime($time) : (is_int($time) ? $time : time()))); |
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} |
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if ($this->timeFormat === static::$timeFormatTimestamp) { |
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return (is_int($time) ? $time : time()) + $offset; |
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} |
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return null; |
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} |
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/** |
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* Calculate the time difference(in seconds). |
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* @param string|integer $datetime1 |
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* @param string|integer $datetime2 |
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* @return integer Positive integer if $datetime1 is later than $datetime2, and vise versa. |
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*/ |
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public function getDatetimeOffset($datetime1, $datetime2 = null) |
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{ |
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if ($datetime2 === null) { |
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if ($this->timeType == static::$timeTypeLocal) { |
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$datetime2 = $this->currentDatetime(); |
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} elseif ($this->timeType == static::$timeTypeUtc) { |
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$datetime2 = $this->currentUtcDatetime(); |
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} |
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} |
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if ($this->timeFormat == static::$timeFormatDatetime) { |
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$datetime1 = strtotime($datetime1); |
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$datetime2 = strtotime($datetime2); |
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} |
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return $datetime1 - $datetime2; |
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} |
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/** |
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* Get init date & time in format of "Y-m-d H:i:s" or timestamp. |
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* @param ModelEvent $event |
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* @return string|int |
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*/ |
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public static function getInitDatetime($event) |
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{ |
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$sender = $event->sender; |
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return $sender->initDatetime(); |
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} |
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/** |
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* Get init date & time, by current time format. |
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* @return string|int Date & time string if format is datetime, or timestamp. |
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*/ |
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public function initDatetime() |
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{ |
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if ($this->timeFormat === static::$timeFormatDatetime) { |
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return static::$initDatetime; |
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} |
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if ($this->timeFormat === static::$timeFormatTimestamp) { |
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return static::$initTimestamp; |
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} |
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return null; |
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} |
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/** |
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* Check whether the attribute is init datetime. |
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* @param mixed $attribute |
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* @return boolean |
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*/ |
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protected function isInitDatetime($attribute) |
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{ |
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if ($this->timeFormat === static::$timeFormatDatetime) { |
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return $attribute == static::$initDatetime || $attribute == null; |
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} |
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if ($this->timeFormat === static::$timeFormatTimestamp) { |
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return $attribute == static::$initTimestamp || $attribute == null; |
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} |
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return false; |
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} |
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/** |
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* Get the current date & time in format of "Y-m-d H:i:s". |
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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 $event |
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* @return string Date & Time. |
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*/ |
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public function onUpdateCurrentDatetime($event) |
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{ |
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return static::getCurrentDatetime($event); |
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} |
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/** |
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* Behaviors associated with timestamp. |
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* @return array behaviors |
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*/ |
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392 |
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public function getTimestampBehaviors() |
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{ |
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return [ |
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[ |
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'class' => TimestampBehavior::class, |
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'createdAtAttribute' => $this->createdAtAttribute, |
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'updatedAtAttribute' => $this->updatedAtAttribute, |
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'value' => [$this, 'onUpdateCurrentDatetime'], |
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] |
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]; |
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} |
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293
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/** |
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* Get creation time. |
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* @return string timestamp |
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*/ |
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244 |
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public function getCreatedAt() |
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{ |
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244 |
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$createdAtAttribute = $this->createdAtAttribute; |
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244 |
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if (!is_string($createdAtAttribute) || empty($createdAtAttribute)) { |
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return null; |
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} |
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return $this->$createdAtAttribute; |
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} |
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/** |
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* Get rules associated with createdAtAttribute. |
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* The default rule is safe. Because the [[TimestampBehavior]] will attach |
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* the creation time automatically. |
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* Under normal circumstances is not recommended to amend. |
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* If `createdAtAttribute` is not specified, the empty array will be given. |
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* @return array rules |
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313
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*/ |
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314
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361 |
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public function getCreatedAtRules() |
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315
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{ |
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316
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361 |
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if (!is_string($this->createdAtAttribute) || empty($this->createdAtAttribute)) { |
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9 |
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return []; |
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} |
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319
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return [ |
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354 |
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[[$this->createdAtAttribute], 'safe'], |
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321
|
|
|
]; |
|
322
|
|
|
} |
|
323
|
|
|
|
|
324
|
|
|
/** |
|
325
|
|
|
* Get update time. |
|
326
|
|
|
* @return string timestamp |
|
327
|
|
|
*/ |
|
328
|
35 |
|
public function getUpdatedAt() |
|
329
|
|
|
{ |
|
330
|
35 |
|
$updatedAtAttribute = $this->updatedAtAttribute; |
|
331
|
35 |
|
if (!is_string($updatedAtAttribute) || empty($updatedAtAttribute)) { |
|
332
|
7 |
|
return null; |
|
333
|
|
|
} |
|
334
|
28 |
|
return $this->$updatedAtAttribute; |
|
335
|
|
|
} |
|
336
|
|
|
|
|
337
|
|
|
/** |
|
338
|
|
|
* Get rules associated with `updatedAtAttribute`. |
|
339
|
|
|
* The default rule is safe. Because the [[TimestampBehavior]] will attach |
|
340
|
|
|
* the last update time automatically. |
|
341
|
|
|
* Under normal circumstances is not recommended to amend. |
|
342
|
|
|
* If `updatedAtAttribute` is not specified, the empty array will be given. |
|
343
|
|
|
* @return array rules |
|
344
|
|
|
*/ |
|
345
|
361 |
|
public function getUpdatedAtRules() |
|
346
|
|
|
{ |
|
347
|
361 |
|
if (!is_string($this->updatedAtAttribute) || empty ($this->updatedAtAttribute)) { |
|
348
|
22 |
|
return []; |
|
349
|
|
|
} |
|
350
|
|
|
return [ |
|
351
|
354 |
|
[[$this->updatedAtAttribute], 'safe'], |
|
352
|
|
|
]; |
|
353
|
|
|
} |
|
354
|
|
|
|
|
355
|
|
|
/** |
|
356
|
|
|
* Get expiration duration. |
|
357
|
|
|
* If `expiredAfterAttribute` is not specified, false will be given. |
|
358
|
|
|
* @return boolean |
|
359
|
|
|
*/ |
|
360
|
221 |
|
public function getExpiredAfter() |
|
361
|
|
|
{ |
|
362
|
221 |
|
if (!is_string($this->expiredAfterAttribute) || empty($this->expiredAfterAttribute)) { |
|
363
|
210 |
|
return false; |
|
364
|
|
|
} |
|
365
|
11 |
|
return (int)($this->{$this->expiredAfterAttribute}); |
|
366
|
|
|
} |
|
367
|
|
|
|
|
368
|
|
|
/** |
|
369
|
|
|
* Set expiration duration (in seconds). |
|
370
|
|
|
* If `expiredAfterAttribute` is not specified, this feature will be skipped, |
|
371
|
|
|
* and return false. |
|
372
|
|
|
* @param integer $expiredAfter the duration after which is expired (in seconds). |
|
373
|
|
|
* @return boolean|integer |
|
374
|
|
|
*/ |
|
375
|
15 |
|
public function setExpiredAfter($expiredAfter) |
|
376
|
|
|
{ |
|
377
|
15 |
|
if (!is_string($this->expiredAfterAttribute) || empty($this->expiredAfterAttribute)) { |
|
378
|
4 |
|
return false; |
|
379
|
|
|
} |
|
380
|
11 |
|
return (int)($this->{$this->expiredAfterAttribute} = (int)$expiredAfter); |
|
381
|
|
|
} |
|
382
|
|
|
|
|
383
|
|
|
/** |
|
384
|
|
|
* Get rules associated with `expiredAfterAttribute`. |
|
385
|
|
|
* The default rule is unsigned integer. |
|
386
|
|
|
* Under normal circumstances is not recommended to amend. |
|
387
|
|
|
* If `expiredAfterAttribute` is not specified, the empty array will be given. |
|
388
|
|
|
* @return array The key of array is not specified. |
|
389
|
|
|
*/ |
|
390
|
361 |
|
public function getExpiredAfterRules() |
|
391
|
|
|
{ |
|
392
|
361 |
|
if (!is_string($this->expiredAfterAttribute) || empty($this->expiredAfterAttribute)) { |
|
393
|
338 |
|
return []; |
|
394
|
|
|
} |
|
395
|
|
|
return [ |
|
396
|
23 |
|
[[$this->expiredAfterAttribute], 'integer', 'min' => 0], |
|
397
|
|
|
]; |
|
398
|
|
|
} |
|
399
|
|
|
|
|
400
|
|
|
/** |
|
401
|
|
|
* Get enabled fields associated with timestamp, including `createdAtAttribute`, |
|
402
|
|
|
* `updatedAtAttribute` and `expiredAfterAttribute`. |
|
403
|
|
|
* @return array field list. The keys of array are not specified. |
|
404
|
|
|
*/ |
|
405
|
138 |
|
public function enabledTimestampFields() |
|
406
|
|
|
{ |
|
407
|
138 |
|
$fields = []; |
|
408
|
138 |
|
if (is_string($this->createdAtAttribute) && !empty($this->createdAtAttribute)) { |
|
409
|
138 |
|
$fields[] = $this->createdAtAttribute; |
|
410
|
|
|
} |
|
411
|
138 |
|
if (is_string($this->updatedAtAttribute) && !empty($this->updatedAtAttribute)) { |
|
412
|
125 |
|
$fields[] = $this->updatedAtAttribute; |
|
413
|
|
|
} |
|
414
|
138 |
|
if (is_string($this->expiredAfterAttribute) && !empty($this->expiredAfterAttribute)) { |
|
415
|
3 |
|
$fields[] = $this->expiredAfterAttribute; |
|
416
|
|
|
} |
|
417
|
138 |
|
return $fields; |
|
418
|
|
|
} |
|
419
|
|
|
|
|
420
|
|
|
/** |
|
421
|
|
|
* Check it has been ever edited. |
|
422
|
|
|
* The judgement principle is to compare the creation time and the last update time, |
|
423
|
|
|
* if one of the two does not exist, then that has not been modified, |
|
424
|
|
|
* if both exist but not consistent, that modified. |
|
425
|
|
|
* You can override this method to implement more complex function. |
|
426
|
|
|
* @return boolean Whether this entity has ever been edited. |
|
427
|
|
|
*/ |
|
428
|
11 |
|
public function hasEverEdited() |
|
429
|
|
|
{ |
|
430
|
11 |
|
if ($this->getCreatedAt() === null || $this->getUpdatedAt() === null) { |
|
431
|
|
|
return false; |
|
432
|
|
|
} |
|
433
|
11 |
|
return $this->getCreatedAt() !== $this->getUpdatedAt(); |
|
434
|
|
|
} |
|
435
|
|
|
} |
|
436
|
|
|
|
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.