Laravel中某个字段出现次数最多的查询

Question

I have the following query:

$top_cont = DB::table('quests') 
       ->whereBetween('created_at', [Carbon::now()->startOfDay(), Carbon::now()->endOfDay()])  
       ->take(5)
       ->get(); 

The quests table has a user_id column. I'm trying to get the top 5 user_id s who have the most contributions (ie has the most number of rows in the quests table for this day).

How can I adjust the query to bring the user_id s that have the most occurrences?

If someone can do it in raw sql, this will be helpful too.

Answer 1

You could do something like this:

$top_cont = DB::table('quests') 
    ->select('user_id', DB::raw('count(*) as contributions'))
    ->whereDate('created_at', '>=', now()->startOfDay()) 
    ->take(5)
    ->groupBy('user_id')
    ->orderBy('contributions', 'desc')
    ->get(); 

This should give you 5 records with this form:

dd($top_cont);

 => Illuminate\Support\Collection {#3403 all: [ {#256 user_id: 2, contributions: 51, }, {#3417 user_id: 975, contributions: 50, }, {#3418 user_id: 743, contributions: 46, }, {#3419 user_id: 538, contributions: 45, }, {#3420 user_id: 435, contributions: 18, }, ], }

Answer 2

You can use following query:

    DB::table('quests') 
       ->whereBetween('created_at', [ Carbon::now()->startOfDay(),Carbon::now()->endOfDay()])
        ->select('user_id', DB::raw('count(*) as count') )
        ->groupBy('user_id')
        ->limit(5)
        ->orderBy ( 'count  DESC')
        ->get();