Question

我创建了一个名为＆＃34; Person＆＃34;的实体。以下是实体的属性。

@property (nonatomic, retain) NSString * address;
@property (nonatomic, retain) NSString * confirmPassword;
@property (nonatomic, retain) NSString * createdOn;
@property (nonatomic, retain) NSString * email;
@property (nonatomic, retain) NSString * fbId;
@property (nonatomic, retain) NSString * name;
@property (nonatomic, retain) NSString * password;
@property (nonatomic, retain) NSString * phNumber;
@property (nonatomic, retain) NSString * sessionToken;

自定义验证添加了两个属性＆＃34; confirmPassword＆＃34;和＃34;密码＆＃34;像：

- (BOOL)validatePassword:(id *)ioValue error:(NSError **)outError {

    // Password's validation is not specified in the model editor, it's specified here.
    // field width: min 4, max 32

    BOOL isValid = YES;
    NSString *password = *ioValue;
    NSString *errorMessage;
    NSInteger code = 0;

    if (password.length == 0) {

        errorMessage = @"Please enter password.";
        code = NSValidationMissingMandatoryPropertyError;
        isValid = NO;

    } else if (password.length < 4) {

        errorMessage = @"Password can't be less than 4 characters.";
        code = NSValidationStringTooLongError;
        isValid = NO;

    } else if (password.length > 32) {

        errorMessage = @"Password can't be more than 32 characters.";
        code = NSValidationStringTooLongError;
        isValid = NO;

    }

    if (outError && errorMessage) {
        NSDictionary *userInfo = @{ NSLocalizedDescriptionKey : errorMessage };
        NSError *error = [[NSError alloc] initWithDomain:kHAB
                                                    code:code
                                                userInfo:userInfo];
        *outError = error;
    }

    return isValid;

}

- (BOOL)validateConfirmPassword:(id *)ioValue error:(NSError **)outError {

    // Confirm Password's validation is not specified in the model editor, it's specified here.
    // field validation
    BOOL isValid = YES;
    NSString *confirmPassword = *ioValue;
    NSString *errorMessage;
    NSInteger code = 0;
    if (![confirmPassword isEqualToString:self.password]) {
        errorMessage = @"The passwords must match";
        code = NSValidationStringPatternMatchingError;
        isValid = NO;
    }
    if (outError && errorMessage) {
        NSDictionary *userInfo = @{ NSLocalizedDescriptionKey : errorMessage };
        NSError *error = [[NSError alloc] initWithDomain:kHAB
                                                    code:code
                                                userInfo:userInfo];
        *outError = error;
    }
    return isValid;
}

值将保存在Person实体中，如：

Person  *userProfile = [Person MR_createEntity];
NSString *facebookId = @"some id";
[userProfile setFbId:facebookId];
[userProfile setEmail:@"umairsuraj.engineer@gmail.com"];
[[NSManagedObjectContext MR_defaultContext] MR_saveToPersistentStoreAndWait];

无法保存上下文，说人员实体未通过有效的密码验证并确认密码字段。从Facebook注册时我无需输入密码和确认密码字段。我该怎么做才能保存上下文而不保存＆＃34;密码＆＃34;和＆＃34; confirmPassword＆＃34;。？

Answer 1

看起来非常简单：

您的课程Person包含password和confirmPassword字段的验证方法。这些方法不接受nil值。
您创建了Person的实例，但没有为password设置值。因此，新实例的字段值为零。
您尝试保存更改。

简而言之，验证失败，因为您自己的验证码要求失败。要验证通过，您必须为password分配有效值（其中“有效”表示您的代码将接受的内容）或更改验证代码，以便nil值通过验证。

目前还不清楚Facebook与这个问题有什么关系。您的代码中的任何内容都不会以任何方式与Facebook相关。

在自定义验证期间，神奇记录Core数据中的上下文保存问题

1 个答案: