Swift中的StrongLoop Loopback示例 [英] StrongLoop Loopback example in Swift

问题描述

我正在尝试在Swift中实现示例LoopBack iOS应用程序

I'm trying to implement the example LoopBack iOS app in Swift

创建一个LoopBack iOS应用程序：第一部分

我有一些从ObjectiveC转换的麻烦

and I'm having some trouble translating from the ObjectiveC

- (void) getBooks
{
    //Error Block
    void (^loadErrorBlock)(NSError *) = ^(NSError *error){
        NSLog(@"Error on load %@", error.description);
    };
    void (^loadSuccessBlock)(NSArray *) = ^(NSArray *models){
        NSLog(@"Success count %d", models.count);
        self.tableData = models;
        [self.myTable reloadData];
    };
    //This line gets the Loopback model "book" through the adapter defined in AppDelegate
    LBModelRepository *allbooks = [[booksAppDelegate adapter] repositoryWithModelName:prototypeName];
    //Logic - Get all books. If connection fails, load the error block, if it passes, call the success block and pass allbooks to it.
    [allbooks allWithSuccess:loadSuccessBlock  failure:loadErrorBlock];
};

这是我的版本

func getBooks() {
    var errorBlock = {
        (error: NSError!) -> Void in
        NSLog("Error on load %@", error.description)
    }

    var successBlock = {
        (models: NSArray!) -> Void in
        NSLog("Success count %d", models.count)
        self.tableData = models
        self.booksTable.reloadData()
    }

    // get the "book" model
    var allBooks: LBModelRepository = adapter.repositoryWithModelName(prototypeName)

    // get all books
    allBooks.allWithSuccess(successBlock, errorBlock)
}

但是在调用allWithSuccess时出现编译器错误：

but I get a compiler error on the call to allWithSuccess:

无法将表达式'Void'转换为'LBModelAllSuccessBlock'字样。

Cannot convert the expressions type 'Void' to type 'LBModelAllSuccessBlock!'

我缺少什么？

更新：

如果我按如下方式声明成功块，则可行：

If I declare the success block as follows, it works:

    var successBlock = {
        (models: AnyObject[]!) -> () in
        self.tableData = models
        self.booksTable.reloadData()
    } 

推荐答案

感谢您的回答!!!!

Thanks for the answer!!!!

如果有人在寻找Swift的最新版本和LoopBack iOS SDK，它对我有用：

If anyone is looking for the last version of Swift and LoopBack iOS SDK, it worked for me like this:

func getBooks() {
    // Error Block
    let errorBlock = {
        (error: NSError!) -> Void in
        NSLog("Error on load %@", error.description)
    }

    // Success Block
    let successBlock = {
        (models: [AnyObject]!) -> () in
        self.tableData = models
        self.myTable.reloadData()
    }

    // This line gets the Loopback model "book" through the adapter defined in AppDelegate
    let allBooks:LBPersistedModelRepository = AppDelegate.adapter.repositoryWithModelName(prototypeName, persisted: true) as! LBPersistedModelRepository

    // Logic - Get all books. If connection fails, load the error block, if it passes, call the success block and pass allbooks to it.
    allBooks.allWithSuccess(successBlock, failure: errorBlock)
}

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