field constant using laravel query builder
Using Laravel 4, and using GROUP BY, rather than ORDER BY I believe you can do something like:
$t1 = DB::table('table1') ->select('field1',DB::raw("'FOO' as field2")) ->groupBy('field2');$t2 = DB::table('table2') ->select('field1',DB::raw("'BAR' as field2")) ->groupBy('field2');$result = $t1->union($t2)->get();I found that $t1 in this case can be an instance of Illuminate\Database\Query\Builder or Illuminate\Database\Eloquent\Builder, but the union argument ($t2) must be of type Illuminate\Database\Query\Builder.
This means that you may use eager loading with something like:
$t1 = MyTableModel::with('table3')->select...