Laravel查询构建器不适用于子查询中的where子句

Question

I have a query like this:

$q = \DB::table(\DB::raw('('.
    \DB::table('table1')
         ->where('field1', 1)->toSQL()
.') AS rs'));

dd($q->get()); // return []

Despite why I have to use this approach, when I remove the where clause it returns all the records correctly, but nothing when using where() .

I'm sure that there is record when field1 = 1 . If I use $q->toSQL() the final SQL is:

select * from (select * from table1 where field1 = ?) AS rs

When I paste this sql to phpmyadmin it returns 1 record. So it seems that Query builder causes this problem.

Answer 1

Found it myself! I should use:

$q1 = Table1Model()::select()->where('field1', 1);

$q2 = \DB::table(\DB::raw('('.
    $q1->toSQL()
.') AS rs'))
->mergeBindings($q1->getQuery());