CancelController.class.php
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<?php
/**
* 【手机端】06-照片、评价取消点赞接口
* Created by PhpStorm.
* @author：wanghuan
* @date：2017-08-30
*/
namespace Api\Controller\Like;
use Common\Service\LikeService;
use Common\Service\CommentService;
use Common\Service\PlanPicService;
class CancelController extends \Api\Controller\AbstractController
{
/** @var LikeService */
protected $like_s;
/** @var CommentService */
protected $comment_s;
/** @var PlanPicService */
protected $pic_s;
public function before_action($action = '')
{
if (!parent::before_action($action)) {
return false;
}
// 实例化点赞service
$this->like_s = new LikeService();
// 实例化评论service
$this->comment_s = new CommentService();
// 实例化照片service
$this->pic_s = new PlanPicService();
return true;
}
/**
* 取消点赞
*/
public function Index_post()
{
// 培训id
$ed_id = I('post.ed_id', 0, 'intval');
// 培训id为空
if (!$ed_id) {
E('_EMPTY_ED_ID');
}
// 培训详情
$this->get_education($ed_id);
// 点赞类型
$like_type = I('post.like_type', 0, 'intval');
// 点赞类型为空
if (!$like_type) {
E('_EMPTY_LIKE_TYPE');
}
// 点赞对象id
$like_obj_id = I('post.like_obj_id', 0, 'intval');
// 点赞对象id为空
if (!$like_obj_id) {
E('_EMPTY_LIKE_OBJ_ID');
}
// 评价点赞
if (LikeService::LIKE_TYPE_COMMENT == $like_type) {
$comment_info = $this->comment_s->get($like_obj_id);
if (empty($comment_info)) {
E('_EMPTY_COMMENT');
}
}
// 照片点赞
if (LikeService::LIKE_TYPE_PIC == $like_type) {
$pic_info = $this->pic_s->get($like_obj_id);
if (empty($pic_info)) {
E('_EMPTY_PIC');
}
}
// 待取消点赞数据
$data = [
'like_type' => $like_type,
'like_obj_id' => $like_obj_id,
'like_uid' => $this->uid,
'ed_id' => $ed_id
];
try {
// 开始事务
$this->like_s->start_trans();
// 取消点赞
$result = $this->like_s->delete_by_conds($data);
// 取消点赞成功，更新点赞量
if ($result) {
// 评价点赞
if (LikeService::LIKE_TYPE_COMMENT == $data['like_type']) {
// 评价的点赞量减1
$this->comment_s->update_likes($data['like_obj_id'], self::LIKES_DEC);
} elseif (LikeService::LIKE_TYPE_PIC == $data['like_type']) { // 照片点赞
// 照片的点赞量减1
$this->pic_s->update_likes($data['like_obj_id'], self::LIKES_DEC);
}
} else { // 取消点赞失败
$this->like_s->rollback();
}
$this->like_s->commit();
} catch (\Think\Exception $e) {
$this->like_s->rollback();
E('_ERR_CANCEL_LIKE_FAIL');
return false;
}
// 点赞失败
if (!$result) {
E('_ERR_CANCEL_LIKE_FAIL');
}
return true;
}
}