How to build a Laravel query with joins and sum? - php

Question

I am trying to configure a query within a Laravel app that is equivalent to this:
SELECT SUM(balance), name FROM db.statement_versions
INNER JOIN statements ON statement_versions.statement_id = statements.id
INNER JOIN accounts ON statements.account_id = accounts.id
GROUP BY name;
This query works when I run it in MySQL Workbench, but when I try to translate it into PHP with the Laravel query builder I am getting an error. What I ultimately want is to return all accounts with their summed balance of statement_versions.balance. Here is my code right now:
public static function query(LensRequest $request, $query)
{
return $request->withOrdering($request->withFilters(
$query->select('accounts.name')->sum('statement_versions.balance')
->join('statements', 'statement_versions.statement_id', '=', 'statements.id')
->join('accounts', 'statements.account_id', '=', 'accounts.id')
->orderBy('balance', 'desc')
->groupBy('statement_versions.balance', 'accounts.name')
));
}
I have tried a couple different variations of this, but I get the error SQLSTATE[42S22]: Column not found: 1054 Unknown column 'statement_versions.balance' in 'field list'. How can I solve this and get the query working correctly?

Answer 1

Not having your tables it will be a bit hard, but I hope that this will give you a path to what you want to achieve, it might be luck that it will work from the first shot :)
DB::table('statement_versions as sv')
->select([
'name',
DB::raw('sum(balance) as total')
])
->join('statements as s', 'sv.statement_id', '=', 's.id')
->join('accounts as a', 's.account_id', '=', 'a.id')
->groupBy('name');