Question

我在终端上做了rails console来检查模型是否有数据（user.name =＆＃34; Yuri＆＃34;＆amp; user.email =＆＃34; odyssey＆＃34;）。然而，终端说

   override func viewDidAppear(_ animated: Bool) {
    // DOES NOT WORK
    var i = 0
    for workorder in dm.workOrderNames {
        if (workOrderToBeDisplayed == workorder) {
            scrollTableTo(section: i, row: 0)
            print("workorder = \(workorder) i = \(i)")
            return
        }
        i = i + 1
    }

    workOrderView.scrollToItem(at:IndexPath(item: i, section: 0), at: .centeredHorizontally, animated: false)
}

func collectionView(_ collectionView: UICollectionView, shouldSelectItemAt indexPath: IndexPath) -> Bool {
 // WORKS 
 workOrderView.scrollToItem(at:IndexPath(item: indexPath.item, section: 0), at: .centeredHorizontally, animated: false)
    return true
}

这些平均模型是否没有任何数据？我是初学者，所以这是我使用终端的错误吗？（在这种情况下，我应该在终端做什么？）

在模特中，我写了

[3] pry(main)> user = User.new
NameError: uninitialized constant User
from (pry):3:in `__pry__'

我不能使用rails console

0 个答案: