I would to make a SUM in query with Laravel 5 Query Builder.
return DB::table('table1')->join('table2','table1.id','=','table2.id')
->where('table1.user_id','=',$userId)
->whereMonth('table2.date', '=', $month )
->whereYear('table2.date', '=', $year )->select('table2.*', DB::raw('SUM(table1.count) AS count_single'))->groupby('table2.id')->get();
but my problem is that I have a prefix table (xc_), and DB::raw return error
"Column not found: 1054 Unknown column 'table1.count' "
It is a problem with prefix table, because if I put:
$table_prefix = env('DB_TABLE_PREFIX', 'xc_');
DB::raw('SUM('.$table_prefix.'table1.count) AS count_single')
It work, so the problem is prefix, but I don't like this method, and so: there is a method for use DB::Raw without specifying prefix table?
DB::raw()is use to create a raw expression, so you have to use full table name.
Laravel Query Builder has an inbuilt function for getting table prefix DB::getTablePrefix()
Replace the above code with this and it will work.
return DB::table('table1')
->join('table2', 'table1.id', '=', 'table2.id')
->where('table1.user_id', '=', $userId)
->whereMonth('table2.date', '=', $month)
->whereYear('table2.date', '=', $year)
->select('table2.*', DB::raw('SUM(' . DB::getTablePrefix() . 'table1.count) AS count_single'))
->groupby('table2.id')
->get();