我正在尝试在Swift中实现示例LoopBack iOS应用
Create a LoopBack iOS app: part one
我在从ObjectiveC转换时遇到了一些麻烦
- (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)
}
但在调用allWithSuccess时出现编译器错误:
无法将表达式类型“无效”转换为类型“LBModelAllSuccessBlock!”。
我想念什么?
更新:
如果我按以下方式声明成功块,则它起作用:
var successBlock = {
(models: AnyObject[]!) -> () in
self.tableData = models
self.booksTable.reloadData()
}
最佳答案
感谢您的回答!!!!
如果有人在寻找Swift和LoopBack iOS SDK的最新版本,它对我来说是这样的:
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)
}