Question

I am trying to store a REST connection model in a single object so that I don’t keep having to use it over and over again. Here is the model I created:

//RestModel.h
#import "ASIHTTPRequest.h"

@interface RestModel : NSObject{
    NSString* _baseUrl;
    NSString* _modelUrl;
}

@property (nonatomic, retain) NSString* modelUrl;

- (id)initWithModel:(NSString*)model;
- (NSDictionary*)getById:(NSInteger*)ident;
- (NSDictionary*)getAll;

@end

//RestModel.m
#import "RestModel.h"

@implementation RestModel

@synthesize modelUrl = _modelUrl;

- (id)init
{
    self = [super init];
    if (self) {
        _baseUrl = @"http://myRESTurl.com";
    }

    return self;
}

- (id)initWithModel:(NSString*)model
{
    self = [super init];
    if (self) {
        _baseUrl = @"http://myRESTurl.com";
        self.modelUrl = [NSString stringWithFormat:@"%@/%@/", _baseUrl, model];
    }

    return self;
}

- (NSDictionary*)HTTPRequest:(NSURL*)url
{
    ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
    [request startSynchronous];
    NSError *error = [request error];
    if(!error){
        NSData *responseData = [request responseData];
        NSString *errorDesc = nil;
        NSPropertyListFormat format;

        [error release]; 
        [request release];

        return (NSDictionary*)[NSPropertyListSerialization propertyListFromData:responseData mutabilityOption:NSPropertyListMutableContainersAndLeaves format:&format errorDescription:&errorDesc];
    }else{
        NSLog(@"%@", error);
        return nil;
    }
}

- (NSDictionary*)getById:(NSInteger*)ident
{
    NSURL* url = [NSURL URLWithString:[NSString stringWithFormat:@"%@/%@", self.modelUrl, ident]];
    return [self HTTPRequest:url];
}

- (NSDictionary*)getAll
{
    NSURL* url = [NSURL URLWithString:[NSString stringWithFormat:@"%@", self.modelUrl]];
    return [self HTTPRequest:url];
}

- (void)dealloc
{
    [_modelUrl release];
//    [_responseData release];
//    [_responseDict release];
    [super dealloc];
}

@end

Edit: Now it isn’t crashing, but my local NSDictionary has a count of 0. I’m calling the following in -viewDidLoad in my controller:

RestModel* rm = [[RestModel alloc] initWithModel:@"user"];
self.dict = [rm getAll];
[rm release];

I planted NSLog of [self.dict count] throughout the controller. It is always 0. The RestModel rm is called, the functions are called (again more NSLogs), but no data. Any ideas?

Answer 1

    [error release]; 
    [request release];

Those should be auto-released objects, as you got them by convenience methods, so releasing them explicitly will make your application crash.