更改密码PFuser

Question

你如何让用户改变密码，邮件，用户名等。有什么想法吗？到目前为止，我有下面的代码。我的问题是，旧数据没有出现，我不能更新它。我希望得到一些帮助！))非常感谢

#import <UIKit/UIKit.h>
#import <Parse/Parse.h>
#import <MobileCoreServices/UTCoreTypes.h>
#import <QuartzCore/QuartzCore.h>

@interface SettingsUPEViewController : UIViewController <UITextFieldDelegate>




@property (strong, nonatomic) IBOutlet UITextField *usernameField;

@property (strong, nonatomic) IBOutlet UITextField *passwordField;
//@property (strong, nonatomic) IBOutlet UITextField *password2Field;
@property (strong, nonatomic) IBOutlet UITextField *mailField;
- (IBAction)updateSave:(id)sender;

@end





#import "SettingsUPEViewController.h"

@interface SettingsUPEViewController ()


@end

@implementation SettingsUPEViewController


NSArray *retriveFormParse;
NSArray *profileArray;


- (id)initWithCoder:(NSCoder *)aCoder
{
    self = [super initWithCoder:aCoder];
    if (self) {

        PFQuery *query= [PFUser query];

        [query whereKey:@"username" equalTo:[[PFUser currentUser]username]];



        [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
            if (!error) {

                profileArray = [[NSArray alloc] initWithArray:objects];






                // The find succeeded.
                NSLog(@"@%", objects.count);
                // Do something with the found objects
                for (PFObject *object in objects) {
                    NSLog(@"%@", objects);
                }
            } else {
                // Log details of the failure
                NSLog(@"Error: %@ %@", error, [error userInfo]);
            }
        }];



    }
    return self;
}


- (void)viewDidLoad
{
    [super viewDidLoad];



    PFQuery *query= [PFUser query];

    [query whereKey:@"username" equalTo:[[PFUser currentUser]username]];

    PFObject *object = [query getFirstObject]; // synchronous request, not ideal, look at getFirstObjectInBackgroundWithBlock

    _usernameField.text = [object valueForKey:@"newname"];
    _passwordField.text = [object valueForKey:@"newpassword"];
    _mailField.text = [object valueForKey:@"newmail"];

    _usernameField.delegate = self;
   _passwordField.delegate = self;
     _mailField.delegate = self;



    _usernameField.delegate = self;
    _passwordField.delegate = self;
    _mailField.delegate = self;



    _usernameField.layer.masksToBounds=YES;
    _usernameField.layer.borderColor=[[UIColor whiteColor]CGColor];
    _usernameField.layer.borderWidth= 1.0f;

    _passwordField.layer.masksToBounds=YES;
    _passwordField.layer.borderColor=[[UIColor whiteColor]CGColor];
    _passwordField.layer.borderWidth= 1.0f;


    //_password2Field.layer.masksToBounds=YES;
    //_password2Field.layer.borderColor=[[UIColor whiteColor]CGColor];
    //_password2Field.layer.borderWidth= 1.0f;


    _mailField.layer.masksToBounds=YES;
    _mailField.layer.borderColor=[[UIColor whiteColor]CGColor];
    _mailField.layer.borderWidth= 1.0f;




    _usernameField.delegate = self;
    _passwordField.delegate = self;
    _mailField.delegate = self;

}


- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
    NSUInteger newLength = [textField.text length] + [string length] - range.length;
    return (newLength > 18) ? NO : YES;
}

- (void) retriveFromParse {

    PFQuery *query= [PFUser query];

    [query whereKey:@"username" equalTo:[[PFUser currentUser]username]];
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
        if (!error) {
            // The find succeeded.
            NSLog(@"@%", objects.count);
            // Do something with the found objects
            for (PFObject *object in objects) {
                NSLog(@"%@", objects);
            }
        } else {
            // Log details of the failure
            NSLog(@"Error: %@ %@", error, [error userInfo]);
        }
    }];

}

- (IBAction)updateSave:(id)sender {
    // Create PFObject with recipe information
    PFUser *profile = [PFUser currentUser];
    [profile setObject:_usernameField.text forKey:@"newname"];
    [profile setObject:_passwordField.text forKey:@"newpassword"];
    [profile setObject:_mailField.text forKey:@"newmail"];




    // Upload recipe to Parse
    [profile saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {


        if (!error) {
            // Show success message
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Upload Complete" message:@"Successfully saved profile" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
            [alert show];

            // Notify table view to reload the profile from Parse cloud

            // Dismiss the controller
            // [self dismissViewControllerAnimated:YES completion:nil];
            [self performSegueWithIdentifier:@"nameSet" sender:self];

        } else {
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Upload Failure" message:[error localizedDescription] delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
            [alert show];

        }

    }];

}


///    if(![oldPassword.text isEqualToString:[user password]]){
///        [alertMessagePassword setMessage:@"The old password is incorrect!"];
///        [alertMessagePassword show];





#pragma mark - Textfield delegate

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [textField resignFirstResponder];
    return YES;
}




@end

Answer 1

不要查询用户对象。在[PFUser currentUser];中已经有了，您可以直接从这个对象获取字段：

PFUser curUser = [PFUser currentUser];
_usernameField.text = [curUser valueForKey:@"username"];

或者简单的

_usernameField.text = curUser[@"username"];

您的updateSave方法是正确的，但是我不知道为什么要使用"newmail“、"newpassword”等等。我猜您想在这里使用“密码”、“用户名”等等，除非您想在用户配置文件上设置一个名为"newname“的字段.