Question

我有一个user->hasMany-> posts->hasMany ->comments关系。

我想在昨天留下评论的不同帖子中获取所有用户评论并计算评论。

到目前为止我在做什么：

$user = User::where("id", $id)->with("comments")->where(["comments"=>function ($a){

   return $a->where("created_At", DB::Raw("YESTERDAY(created_at)"))
}])->get();

但它返回了我所有的评论。

Answer 1

如果您要加载所有帖子中包含计数评论的用户，请使用withCount()：

User::withCount(['postsComments' => function($q) {
    return $q->whereDate('created_at', Carbon::yesterday());
}])
->find($id);

要使其有效，请定义新的hasManyThrough关系：

public function postsComments()
{
    return $this->hasManyThrough(Comment::class, Post::class);
}

Answer 2

应该是：

$posts = Post::where("user_id", $id)->with(["comments"=> function ($query){
          $query->where("comments.created_at", Carbon::yesterday());
})->get();

$countComments = $posts->sum(function($query){
   return $query->comments->count();
});

$countComments现在应该提供昨天用户评论的数量。

Answer 3

<强>尝试：

$yesterday = date("Y-m-d", strtotime( '-1 days' ) );

$user = User::where("id", $id)->with("comments")->where(["comments"=>function ($a) use ($yesterday) {
   return $a->whereDate('created_at', $yesterday )
}])->get();

计算昨天的用户评论

3 个答案: