php - Laravel 中的自定义查询

Question

如何为多个表编写查询，例如

"select  items.id, items.name, sum(qty) as qty  from dispatch_main 
    inner join dispatch_detail on dispatch_main.id = dispatch_detail.id
    inner join items on items.id = dispatch_detail.item_id
    left outer join customers on dispatch_detail.customer = customers.id
    where dispatch_main.entry_type in ('Purchase','Return','Confirmed') and 
    dispatch_main.to_=$location and items.for_customer in ($types)
    group by dispatch_detail.item_id
    order by  items.id
    ";

或者

"select items.id, items.name, sum(qty) as qty  from dispatch_main 
    inner join dispatch_detail on dispatch_main.id = dispatch_detail.id
    inner join items on items.id = dispatch_detail.item_id
    left outer join customers on dispatch_detail.customer = customers.id
    where dispatch_main.entry_type in ('Dispatch','Confirmed') and 
    dispatch_main.from_=$location and items.for_customer in ($types)
    group by dispatch_detail.item_id
    order by  items.id
    "

在 Laravel 5.4 中？ DB::statement 可以运行这种类型的查询吗？如果我在 DB::statement(''); 中编写相同类型的查询

Answer 1

  1 DB::table('dispatch_main')
  2   ->innerJoin('dispatch_detail', 'dispatch_main.id', '=', 'dispatch_detail.id')
  3   ->innerJoin('items', 'dispatch_detail.item_id', '=', 'items.id')
  4   ->leftJoin('customers', 'dispatch_detail.customer', '=', 'customers.id')
  5   ->whereIn('dispatch_main.entry_type', ['Purchase','Return','Confirmed'])
  6   ->where('dispatch_main.to_', $location)
  7   ->whereIn('items.for_customer', $types)
  8   ->groupBy('dispatch_detail.item_id')
  9   ->orderBy('items.id')
 10   ->get()->toArray();
 11
 12

尝试这个，并且永远、永远避免编写 RAW 查询，直到你绝对这样做。