Laravel hasMany 关系统计帖子的点赞数和评论数
代码:
$posts = Jumpsite::find($jid)
->posts()
->with('comments')
->with('likes')
->with('number_of_comments')
->with('number_of_likes')
->where('reply_to', 0)
->orderBy('pid', 'DESC')
->paginate(10);
每个帖子都有评论和喜欢.我最初只显示一些评论以避免大量加载.但我想显示每个帖子的总评论数和点赞数.我该怎么做?
Each post has a comment and likes. I only display a few of the comments initially to avoid large loads. But I want to show how many the total comments and likes for each post. How do I do this?
型号代码:
public function likes()
{
return $this->hasMany('Like', 'pid', 'pid');
}
public function comments()
{
return $this->hasMany('Post', 'reply_to', 'pid')->with('likes')->take(4);
}
public function number_of_likes()
{
return $this->hasMany('Like', 'pid', 'pid')->count();
}
注意:
This is an API. All will be returned as JSON.
<小时>
更新
回归
Post
author_id
message
Comments(recent 4)
user_id
message
post_date
Number_of_likes
Likes
user_id
Number_of_total_comments
Number_of_total_likes
<小时>
更新
我如何返回数据
$posts = $posts->toArray();
$posts = $posts['data'];
return Response::json(array(
'data' => $posts
));
只要使用它,我就可以在 json 中获取我想要的所有数据.但我也想加上总数.
Just by using that I get all the data i want in the json. But I also want to add the total counts.
更新
protected $appends = array('total_likes');
public function getTotalLikesAttribute()
{
return $this->hasMany('Like')->whereUserId($this->uid)->wherePostId($this->pid)->count();
}
但得到错误:
Unknown column 'likes.post_id'
<小时>
错误
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'likes.post_id' in 'where clause' (SQL: select count(*) as aggregate from `likes` where `likes`.`deleted_at` is null and `likes`.`post_id` = 4 and `pid` = 4 and `uid` = 1)
推荐答案
在您的模型中放置以下访问器:
In your model place the following accessors:
点赞总数:
public function getTotalLikesAttribute()
{
return $this->hasMany('Like')->whereUserId($this->author_id)->count();
}
统计评论总数:
从你的描述中,我可以看到,你已经检索了作为评论的帖子数量
From your description, i can see, you have retrieving the number of posts as comments
public function getTotalCommentsAttribute()
{
return $this->hasMany('Post')->whereUserId($this->author_id)->count();
}
现在,从您的控制器:
$post = Jumpsite::find($jid);
// total comments
var_dump( $post->total_comments );
// total Likes
var_dump( $post->total_likes );
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