我有一个应用程序，我有两个解析表 - “用户”和“主题”。现在我想要的是，如果任何用户注册，那么我想创建另一个解析表，它将存储与该用户相关的一些信息，主题说主题进度。这是我的代码 -
- (IBAction)signUpFunction {
[self.view endEditing:YES];
NSString *fullName = self.nameTextField.text;
NSString *username = self.usernameTextField.text;
NSString *password = self.passwordTextField.text;
NSString *email = self.emailTextField.text;
if ([username length] == 0 || [password length] == 0 || [email length] == 0 || [fullName length] == 0)
{
[[[UIAlertView alloc] initWithTitle:@"Missing Information"
message:@"Make sure you fill out all of the information!"
delegate:nil
cancelButtonTitle:@"ok"
otherButtonTitles:nil] show];
}
else {
PFUser *newUser = [PFUser user];
newUser.username = username;
newUser.password = password;
newUser.email = email;
newUser[@"fullName"] = fullName;
[newUser signUpInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if (error) {
[[[UIAlertView alloc] initWithTitle:@"Error!"message:[error.userInfo objectForKey:@"error"] delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] show ];
}
else
{
PFQuery *topicsQuery = [PFQuery queryWithClassName:@"Topic"];
[topicsQuery findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (error) {
NSLog(@"Error: %@ %@", error, [error userInfo]);
}
else {
for (unsigned int i = 0; i < objects.count; i++) {
PFObject *object = objects[i];
PFObject *topicProgressForUser = [PFObject objectWithClassName:@"QuizProgress"];
[topicProgressForUser setObject:[PFUser currentUser] forKey:@"user"];
[topicProgressForUser setObject:object forKey:@"topic"];
if ([object[@"fullAccess"] isEqualToString:@"Yes"]) {
[topicProgressForUser setObject:@"Free" forKey:@"purchased"];
} else {
[topicProgressForUser setObject:@"No" forKey:@"purchased"];
}
[topicProgressForUser setObject:0 forKey:@"questionsSolved"];
[topicProgressForUser setObject:0 forKey:@"attempts"];
[topicProgressForUser setObject:0 forKey:@"resultInPercentage"];
[topicProgressForUser setObject:@"Basic" forKey:@"achievement"];
[topicProgressForUser setObject:NO forKey:@"generateCertificate"];
[topicProgressForUser saveEventually];
}
}
}]; // topic block
}
}]; // signup block
}
}
我不认为我通过单独保存每个pfobject来使用正确的保存数据标准来解析云。如果在保存对象的过程中丢失了互联网连接怎么办？任何人都可以帮我使用正确快速的方法将多个pfobject数据保存到解析云中的新表中。
答案 0 :(得分：1)
在你的情况下，我会看一下班级方法saveAll，saveAllInBackground等。
我接受了你的代码并修改了我认为在这种情况下最有意义的方法。让我知道它是否有效：
- (IBAction)signUpFunction {
[self.view endEditing:YES];
NSString *fullName = self.nameTextField.text;
NSString *username = self.usernameTextField.text;
NSString *password = self.passwordTextField.text;
NSString *email = self.emailTextField.text;
if ([username length] == 0 || [password length] == 0 || [email length] == 0 || [fullName length] == 0) {
[[[UIAlertView alloc] initWithTitle:@"Missing Information"
message:@"Make sure you fill out all of the information!"
delegate:nil
cancelButtonTitle:@"ok"
otherButtonTitles:nil] show];
} else {
PFUser *newUser = [PFUser user];
newUser.username = username;
newUser.password = password;
newUser.email = email;
newUser[@"fullName"] = fullName;
[newUser signUpInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if (error) {
[[[UIAlertView alloc] initWithTitle:@"Error!"message:[error.userInfo objectForKey:@"error"] delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] show ];
} else {
PFQuery *topicsQuery = [PFQuery queryWithClassName:@"Topic"];
[topicsQuery findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (error != nil) {
NSLog(@"Error: %@ %@", error, [error userInfo]);
} else {
NSMutableArray *topics = [NSMutableArray array];
for (unsigned int i = 0; i < objects.count; i++) {
PFObject *object = objects[i];
PFObject *topicProgressForUser = [PFObject objectWithClassName:@"QuizProgress"];
[topics addObject:topicProgressForUser];
topicProgressForUser[@"user"] = [PFUser currentUser];
topicProgressForUser[@"topic"] = object;
topicProgressForUser[@"questionSolved"] = @(NO);
topicProgressForUser[@"attempts"] = @(0);
topicProgressForUser[@"resultInPercentage"] = @(0);
topicProgressForUser[@"achievement"] = @"Basic";
topicProgressForUser[@"generateCertificate"] = @(NO);
if ([object[@"fullAccess"] isEqualToString:@"Yes"]) {
topicProgressForUser[@"purchased"] = @"Free";
} else {
topicProgressForUser[@"purchased"] = @"No";
}
}
[PFObject saveAllInBackground:objects block:^(BOOL succeeded, NSError *error) {
if (error != nil) {
// Do something here to handle the error
} else {
//
}
}
]; // saveAllInBackground
}
}]; // topic block
}
}]; // signup block
}
}
答案 1 :(得分：0)
更改以下代码行：
[topicProgressForUser saveEventually];
到
[topicProgressForUser saveInBackground];
希望这会有所帮助..