mysql - Laravel 3: Joining and getting sum of two tables, Is there a better way? -

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i'm trying columns of table while getting sum of related table (i'm using mysql database). tables advantages , conversions, advantages has conversionid column join. related via models. first tried achieve eloquent method, not succeed, came fluent method, working fine:

db::table('conversions')     ->join('advantages','advantages.conversionid','=','conversions.id')     ->where('conversions.used','=',0)     ->group_by('conversions.id')     ->get(array(         'conversions.*',         db::raw('sum(advantages.point) totaladvantage')       ))

i guess query describes how columns , want achieve.

so question is: there more efficient way achieve this? using db::raw seemed weird me, , sum() method returns sum of columns. place wrote both fluent , raw query in project, made me think if i'm missing something.

thanks in advance

you can call aggregate methods through fluent 

db::table('conversions')     ->join('advantages','advantages.conversionid','=','conversions.id')     ->where('conversions.used','=',0)     ->group_by('conversions.id')     ->select(array(         'conversions.*',         'advantages.point totaladvantage')       )     ->sum('advantages.point')

havent tested this, let me know how on


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