Github link

今天要處理刪除

其實超簡單的

只是想偷懶一下 XD

一樣將下列程式碼新增到 RestApi class:

func deleteTodoList(completionHandler: ((NSDictionary!, NSError!) -> Void)!, todoId: String) {
        var session = NSURLSession.sharedSession()
        
        var request = NSMutableURLRequest(URL: NSURL(string: "http://192.168.1.158:3000/user/kerkerj/todos/\(todoId)")!)
        request.HTTPMethod = "DELETE"
        
        var err: NSError?
        request.addValue("application/json", forHTTPHeaderField: "Content-Type")
        request.addValue(self.API_key, forHTTPHeaderField: "API-Key")
        
        
        let task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
            if (error != nil) {
                return completionHandler(nil, error)
            }
            
            var error: NSError?
            let json = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &error) as NSDictionary
            
            println(json)
            
            if (error != nil) {
                return completionHandler(nil, error)
            } else {
                return completionHandler(json, nil)
            }
        })
        
        task.resume()
    }

回到 ViewController 中的 tableView commitEditingStyle 的方法中

將其更新為:

func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
        
        api.deleteTodoList({data, err -> Void in
            let alert = UIAlertView()
            alert.title = "Alert"
            alert.addButtonWithTitle("Ok")
            
            if (err != nil) {
                alert.message = "Failed to delete: \(err)"
                alert.show()
            } else {
                alert.message = "ok!"
                
                self.fakeData.removeAtIndex(indexPath.row)
                
                dispatch_async(dispatch_get_main_queue(), {
                    // must be "tableView!" not "tableView?"
                    alert.show()
                    self.tableView!.reloadData()
                })
            }
            }, todoId: fakeData[indexPath.row]["_id"]!)
    }

改好程式碼後，執行該程式

在清單中將 item 往左滑，就可以看到刪除的按鈕了!

超簡單的啦!

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