Getting the current row's rank with Laravel

问题

In my Laravel 4 app, my users table has a votes column. I'd like to find the current user's rank. I can already get the top 10 users with User::orderBy('votes', 'desc')->take(10), but I'd like to display the current user's rank below that list. Ideally, this would go something like:

Auth::user()->rank('orderBy', 'votes', 'desc');

I get the logged in user, I ask for his rank assuming I order the users table by votes.

Does anybody know if there's some way I can do this with Eloquent?

回答1:

Although still somewhat hacky you can do it via a custom getter (mutator) in Eloquent.

public function getRankAttribute()
{
    return $this->newQuery()->where('votes', '>=', $this->votes)->count();
}

You can then get the users rank as an attribute.

$rank = Auth::user()->rank;

回答2:

Something like:

$currUser = DB::table('users')->where('votes','>=',Auth::user()->votes)->count();

And display $currUser by the user details below the top 10 list?

Hopefully this helps.

来源：https://stackoverflow.com/questions/16343482/getting-the-current-rows-rank-with-laravel