ios - 休息套件 : getting mappingResult with "<null>" in all requests

Question

在使用“nil”keyPath 执行 Restkit 请求后，它工作正常，我得到它的响应:

"<null>" = "<EstablishmentReservationsMapping: 0x7fc42d1140f0>"

但我仍然在下一个请求的所有映射结果中得到它，就像这样:

"<null>" = "<EstablishmentReservationsMapping: 0x7fc42d1140f0>";
"my_establishments" =     (
        "<Establishment: 0x7fc42f89ae10>",
        "<Establishment: 0x7fc42f89b220>",
        "<Establishment: 0x7fc42f89b8f0>",
        "<Establishment: 0x7fc42f90bd10>",
        "<Establishment: 0x7fc42f990d60>",
        "<Establishment: 0x7fc42f93a650>",
        "<Establishment: 0x7fc42f9e6bb0>",
        "<Establishment: 0x7fc42fe9a0a0>",
        "<Establishment: 0x7fc42f9dcbc0>"
    );

我只想得到:

"my_establishments" =     (
    "<Establishment: 0x7fc42f89ae10>",
    "<Establishment: 0x7fc42f89b220>",
    "<Establishment: 0x7fc42f89b8f0>",
    "<Establishment: 0x7fc42f90bd10>",
    "<Establishment: 0x7fc42f990d60>",
    "<Establishment: 0x7fc42f93a650>",
    "<Establishment: 0x7fc42f9e6bb0>",
    "<Establishment: 0x7fc42fe9a0a0>",
    "<Establishment: 0x7fc42f9dcbc0>"
);

这是第二个请求的响应responseDescriptor:

RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:establishmentMapping method:RKRequestMethodGET pathPattern:nil keyPath:@"my_establishments" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

[_objectManager addResponseDescriptor:responseDescriptor];

Answer 1

问题是 pathPattern:nil 因为这意味着所有响应描述符将始终被考虑用于每个响应。在许多情况下，这会导致创建空对象。

要修复，请将路径模式添加到每个响应描述符，以便 RestKit 可以告诉它应该使用哪个。