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<?php
/**
* @link https://www.humhub.org/
* @copyright Copyright (c) 2018 HumHub GmbH & Co. KG
* @license https://www.humhub.com/licences
*/
namespace humhub\modules\like\models;
use Yii;
use humhub\modules\content\components\ContentAddonActiveRecord;
use humhub\modules\content\interfaces\ContentOwner;
use humhub\modules\like\notifications\NewLike;
/**
* This is the model class for table "like".
*
* The followings are the available columns in table 'like':
* @property integer $id
* @property integer $target_user_id
* @property string $object_model
* @property integer $object_id
* @property string $created_at
* @property integer $created_by
* @property string $updated_at
* @property integer $updated_by
*
* @since 0.5
*/
class Like extends ContentAddonActiveRecord
{
/**
* @inheritdoc
*/
protected $updateContentStreamSort = false;
/**
* @return string the associated database table name
*/
public static function tableName()
{
return 'like';
}
/**
* @inheritdoc
*/
public function behaviors()
{
return [
[
'class' => \humhub\components\behaviors\PolymorphicRelation::class,
'mustBeInstanceOf' => [
\yii\db\ActiveRecord::class,
]
]
];
}
/**
* @return array validation rules for model attributes.
*/
public function rules()
{
return [
[['object_model', 'object_id'], 'required'],
[['id', 'object_id', 'target_user_id'], 'integer'],
];
}
/**
* Like Count for specifc model
*/
public static function GetLikes($objectModel, $objectId)
{
$cacheId = "likes_" . $objectModel . "_" . $objectId;
$cacheValue = Yii::$app->cache->get($cacheId);
if ($cacheValue === false) {
$newCacheValue = Like::findAll(['object_model' => $objectModel, 'object_id' => $objectId]);
Yii::$app->cache->set($cacheId, $newCacheValue, Yii::$app->settings->get('cache.expireTime'));
return $newCacheValue;
} else {
return $cacheValue;
}
}
/**
* After Save, delete LikeCount (Cache) for target object
*/
public function afterSave($insert, $changedAttributes)
{
Yii::$app->cache->delete('likes_' . $this->object_model . "_" . $this->object_id);
if ($insert) {
\humhub\modules\like\activities\Liked::instance()->about($this)->save();
if ($this->getSource() instanceof ContentOwner && $this->getSource()->content->createdBy !== null) {
// This is required for comments where $this->getSoruce()->createdBy contains the comment author.
$target = isset($this->getSource()->createdBy) ? $this->getSource()->createdBy : $this->getSource()->content->createdBy;
NewLike::instance()->from(Yii::$app->user->getIdentity())->about($this)->send($target);
}
}
$this->automaticContentFollowing = Yii::$app->getModule('like')->autoFollowLikedContent;
return parent::afterSave($insert, $changedAttributes);
}
/**
* Before Delete, remove LikeCount (Cache) of target object.
* Remove activity
*/
public function beforeDelete()
{
Yii::$app->cache->delete('likes_' . $this->object_model . "_" . $this->object_id);
return parent::beforeDelete();
}
}
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