我有一个生成位置的 rails api，以及这些位置的菜单。在我的 iOS 应用程序中，我使用 AFNetworking 在表格视图中检索这些位置的 json 列表。
这是我用来获取位置数据的 AFNetworking 请求
位置表视图控制器.m
[[LocationApiClient sharedInstance] getPath:@"locations.json" parameters:nil
success:^(AFHTTPRequestOperation *operation, id response) {
NSLog(@"Response: %@", response);
NSMutableArray *results = [NSMutableArray array];
for (id locationDictionary in response) {
Location *location = [[Location alloc] initWithDictionary:locationDictionary];
[results addObject:location];
}
self.results = results;
[self.tableView reloadData];
}
failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error fetching locations!");
NSLog(@"%@", error);
}];
为位置请求返回的 json 示例
{
"created_at" = "2013-02-23T19:25:26Z";
id = 2;
lat = "48.870175";
long = "2.779899999999998";
name = "Disneyland Hotel";
"places_id" = fd90769e2cf40d6cb6cb1a3d0bfd0ce5d37ed331;
"street_address" = "Rue de la Marni\U00e8re, Chessy, France";
"updated_at" = "2013-02-23T19:25:26Z";
},
显示姓名和地址
当用户点击位置单元格时，我想显示该位置啤酒列表的表格视图。rails api 路由（对于 location_id => 1）是http://localhost:3000/locations/1/beers.json并为属于 location_id:1 的啤酒输出以下 json
{
"created_at":"2013-02-23T19:25:53Z",
"description":"fkjgvjkg",
"id":1,"location_id":1,
"name":"nhoihioh",
"price":"2.5","style":"ipa",
"updated_at":"2013-02-23T19:25:53Z"
}
当用户点击位置单元格时，我想显示该位置的啤酒列表，通过http://localhost:3000/locations/(whatever location_id is associated with the table cell that was tapped)/beers.json
当用户点击位置单元格时，如何将 location_id 插入到下一个表视图中发生的以下 AFNetworking 请求中？
BeerTableViewController.m
[[LocationApiClient sharedInstance] getPath:@"locations/**(location_id from location table cell inserted here)**/beers.json" parameters:nil
success:^(AFHTTPRequestOperation *operation, id response) {
NSLog(@"Response: %@", response);
NSMutableArray *results = [NSMutableArray array];
for (id beerDictionary in response) {
Beer *beer = [[Beer alloc] initWithDictionary:beerDictionary];
[results addObject:beer];
}
self.results = results;
[self.tableView reloadData];
}
failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error fetching beers!");
NSLog(@"%@", error);
}];
我假设我必须记录 location_id 并在点击表格单元格时将该值作为 url 的参数传递，但我不知道该怎么做。