我对 groupBy in propell 有问题:
问题属于两个表。一个称为显示,另一个称为客户显示类型。在 customerDisplayType-table 中,有两列"driver"和"driverOptions"。我想对这两列进行分组。因此,结果可能如下所示:
Display1 -> with customerDisplayType driver "1" and driverOptions "xyz"
Display2 -> with customerDisplayType driver "1" and driverOptions "abc"
Display3 -> with customerDisplayType driver "2" and driverOptions "xyz"
我希望你明白我的意思...
到目前为止,我尝试了这样的事情:
$displays = PiDisplayQuery::create()
->filterByStationId($_object->getId())
->usePiCustomerDisplayTypeQuery()
->groupBy("CONCAT ".PiCustomerDisplayTypePeer::DRIVER.",".PiCustomerDisplayTypePeer::DRIVER_OPTIONS) // I also tried UNION instead of CONCAT
->endUse()
->find();
我该如何解决?
关于代码,如果你想使用多个 groupBy,你只需要多次调用 groupBy 方法:
$displays = PiDisplayQuery::create()
->filterByStationId($_object->getId())
->usePiCustomerDisplayTypeQuery()
->groupBy('PiCustomerDisplayType.Driver')
->groupBy('PiCustomerDisplayType.DriverOptions')
->endUse()
->find();