1対5の関係を持つコアデータオブジェクトがあります。だから例えば
person.mothername person.fathername person.childrennames <- this is a NSSet
これをiPhoneからサーバーに1つのHTTPリクエストで一度に投稿したいと思います。これはできますか？
NSSetを使用しない単純な例として現在使用しているコード：パラメーターの設定：
params = [NSDictionary dictionaryWithObjectsAndKeys:
self.person.mothername, @"mothername",
self.person.fathername, @"fathername",
nil];
self.httpRequest = [[HTTPRequest alloc] init];
self.httpRequest.delegate = self;
[self.httpRequest httpPOST:SERVER_POST_PERSON withParams:params];
次に、次のステップ（=簡単）：
- (BOOL)httpPOST:(NSString *)url withParams:(NSDictionary *)params {
const char *strUrlConst = (const char*)[[self buildParams:params] UTF8String];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10.0];
[request setHTTPMethod:@"POST"];
[request setHTTPBody:[NSData dataWithBytes:strUrlConst length:strlen(strUrlConst)]];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (connection) {
self.responseData = [[NSMutableData data] retain];
return YES;
}
return NO;
}
次に、最後の方法（簡単ですか？）：
- (NSString *)buildParams:(NSDictionary *)params {
NSString *builtParams = [[[NSString alloc] init] autorelease];
int i = 0;
for (NSString *key in [params allKeys]) {
NSString *value = [self escapeString:[params objectForKey:key]];
if (!value) {
continue;
}
if (!i++) {
builtParams = [builtParams stringByAppendingString:[NSString stringWithFormat:@"%@=%@", key, value]];
} else {
builtParams = [builtParams stringByAppendingString:[NSString stringWithFormat:@"&%@=%@", key, value]];
}
}
NSLog(@"PARAMS: %@", builtParams);
return builtParams;
}