我想要用户之间的聊天数和按聊天ID分组.但查询没有给出聊天计数.它的空白.我已经在Stack Overflow(
Laravel Eloquent groupBy() AND count,Laravel get count of results based on groupBy)中看到了类似的问题,并使用那些标记为正确但仍未获得所需结果的查询.
我使用以下查询：
$user_info = DB::table('chat_messages')
->select(DB::raw('count(*) as total'))
->where('viewed','=','0')
->groupBy('chat_id','type')
->get();
我的表结构如下：
{
"_id": ObjectId("571f549b1c8cb6972c8b4567"),"message": "Testing Chat Functionality","type": "singlechat","date": "2016-04-26 11:44:27","from": "56b07a5a083f119a0b8b4569","to": "56b07a5a083f119a0b8b4569","chat_id": "56f65fc51c8cb6ca1a8b4567","status": "1","updated_at": ISODate("2016-04-26T11:44:27.624Z"),"created_at": ISODate("2016-04-26T11:44:27.624Z"),"viewed": "0"
}
结果是这样的：
Array
(
[0] => Array
(
[_id] => Array
(
[chat_id] => 56f65fc51c8cb6ca1a8b4567
[type] => singlechat
)
[chat_id] => 56f65fc51c8cb6ca1a8b4567
[type] => singlechat
[count(*) as total] =>
)
[1] => Array
(
[_id] => Array
(
[chat_id] => 56fa3f5f1c8cb667138b4567
[type] => groupchat
)
[chat_id] => 56fa3f5f1c8cb667138b4567
[type] => groupchat
[count(*) as total] =>
)
)
解决方法
$user_info = DB::table('chat_messages')
->where('viewed','0')
->select(DB::raw('count(chat_messages.*) as total'))
->groupBy('chat_id','type')
->get();
这应该工作,我现在无法测试
