swift - 使用未声明的类型 'BackendlessCollection'

Question

大家好，我是 Backendless 的新手。请帮忙。我在 ios 中使用 Use of undeclared type 'BackendlessCollection' 时遇到错误。 swift

我在主视图 Controller 中编写了函数 retrieveBlurbs()。我又创建了一个像这样的对象 medicineList 类

class medicineList : NSObject
{

    var objectId : String?
    var name : String?

    var desc : String?
    var created : NSDate?
    var updated : NSDate?

}


func retrieveBlurbs()
{
    var backendless = Backendless.sharedInstance()
    let query = BackendlessDataQuery()
    // Use backendless.persistenceService to obtain a ref to a data store for the class
    backendless.persistenceService.ofTable(medicineList.ofClass()).find(query, response: { ( medicineList : BackendlessCollection!) -> () in
        let currentPage = medicineList.getCurrentPage()
        print("Loaded \(currentPage.count) medicineList objects")
        print("Total restaurants in the Backendless starage - \(medicineList.totalObjects)")

        for medicineList in currentPage as! [medicineList]
        {
            print("Medicine name = \(medicineList.name)")
        }




    } , error: { ( fault : Fault!) -> () in
            print("Server reported an error: \(fault)")
        })
}

Answer 1

enter image description here我不确定，这会有所帮助

我看过 API，所以如果您使用异步方法签名，带有查询变量的方法“find”有两个非可选 block 用于响应和错误。

我会尝试像这样更改该方法:

func retrieveBlurbs()
{
    var backendless = Backendless.sharedInstance()
    let query = BackendlessDataQuery()
    // Use backendless.persistenceService to obtain a ref to a data store for the class
    backendless.persistenceService.ofTable(medicineList.ofClass()).find(query) { medicineList in
        let currentPage = medicineList.getCurrentPage()
        print("Loaded \(currentPage.count) medicineList objects")
        print("Total restaurants in the Backendless starage - \(medicineList.totalObjects)")

        for medicineList in currentPage as! [medicineList]
        {
            print("Medicine name = \(medicineList.name)")
        }

    } , { fault in
            print("Server reported an error: \(fault)")
        }
}

如果这没有帮助，那么也许您必须从​​一开始就进行 sdk 设置，在第一次设置期间可能会丢失某些模块或文件