public function actionAnswer($id)
{
$answer = $this->findAnswer($id);
$user = Yii::$app->user->getIdentity();
list($result, $like) = Like::Answer($user, $answer);
if ($result) {
return $this->message('提交成功!', 'success');
} else {
return $this->message($like ? $like->getErrors() : '提交失败!');
}
}
/**
* 喜欢数据切换
* @param User $user
* @param ActiveRecord $model
* @return array
*/
protected static function toggleType(User $user, Post $model)
{
$data = ['target_id' => $model->id, 'target_type' => $model::TYPE, 'author_id' => $user->id, 'status' => static::STATUS_ACTIVE];
if (!static::deleteAll($data + ['type' => static::TYPE])) {
// 删除数据有行数则代表有数据,无行数则添加数据
$hate = new static();
$hate->setAttributes($data);
$result = $hate->save();
if ($result) {
// 如果是新增数据, 删除掉Like的同类型数据
$attributes = ['hate_count' => 1];
if (Like::deleteAll($data + ['type' => Like::TYPE])) {
// 如果又删除数据, like_count也要-1
$attributes['like_count'] = -1;
}
$model->updateCounters($attributes);
}
return [$result, $hate];
}
$model->updateCounters(['hate_count' => -1]);
return [true, null];
}
/**
* 获取赞记录
* @return mixed
*/
public function getLike()
{
return $this->hasOne(Like::className(), ['target_id' => 'id'])->andWhere(['uid' => Yii::$app->user->getId(), 'target_type' => static::TYPE, 'type' => 'like']);
}
/**
* 获取指定用户的赞记录
* @param null|int $authorId
* @return mixed
*/
public function getLike($authorId = null)
{
return $this->hasOne(Like::className(), ['target_id' => 'id'])->andWhere(['target_type' => self::TYPE, 'author_id' => $authorId ?: Yii::$app->getUser()->getId()]);
}
/**
* 获取用户喜欢列表
* @return static
*/
public function getLikes()
{
return $this->hasMany(Like::className(), ['author_id' => 'id'])->inverseOf('author');
}