Core data Restkit、Swift、核心数据一对多
我就是想不出这个错误: 由于未捕获的异常“NSInvalidArgumentException”而终止应用程序,原因:“***setObjectForKey:密钥不能为零 下面是一些JSON示例Core data Restkit、Swift、核心数据一对多,core-data,swift2,restkit-0.24.x,Core Data,Swift2,Restkit 0.24.x,我就是想不出这个错误: 由于未捕获的异常“NSInvalidArgumentException”而终止应用程序,原因:“***setObjectForKey:密钥不能为零 下面是一些JSON示例 [{"storeId":"22","storeName":"Jewel Osco","storeAddress1":"890 N Western Ave","storeAddress2":"","storeCity":"Lake Forest","storeState":"IL","storeZipCo
[{"storeId":"22","storeName":"Jewel Osco","storeAddress1":"890 N Western Ave","storeAddress2":"","storeCity":"Lake Forest","storeState":"IL","storeZipCode":"","storeGfCount":"71","storeListCount":"2","storeDistance":"1.13","products":[{"storeId":"22","productId":"61","upcCode":"00090800000751","brandDesc":"Herb Pharm","productName":"Herb Pharm Black Elderberry Herbal Glycerite Extract"},{"storeId":"22","productId":"64","upcCode":"00698997807308","brandDesc":"Udi's","productName":"Udi's Soft N' Chewy Granola Bars Chocolate Chip - 5 CT"}]}]
它是一个具有一对多产品阵列的商店阵列
如果我在没有关系的情况下运行查询,它会运行得很好。但是,当我添加关系时,它失败了
以下是相关映射:
class func defaultMapping(objectManager:RKObjectManager!) -> RKEntityMapping{
let managedObjectStore:RKManagedObjectStore = objectManager.managedObjectStore!
let defaultMapping = RKEntityMapping(forEntityForName: "LocatorStoreProduct", inManagedObjectStore: managedObjectStore)
defaultMapping.identificationAttributes = ["productId","storeId"]
let mappingDictionary:[String:String] = [
"productId":"productId" ,
"storeId":"storeId" ,
"upcCode":"upcCode" ,
"brandDesc":"brand" ,
"productName":"productName"
]
defaultMapping.addAttributeMappingsFromDictionary(mappingDictionary)
return defaultMapping
}
以下是映射的分配:
class func defaultMapping(objectManager:RKObjectManager!) -> RKEntityMapping{
let managedObjectStore:RKManagedObjectStore = objectManager.managedObjectStore!
let defaultMapping = RKEntityMapping(forEntityForName: "LocatorStore", inManagedObjectStore: managedObjectStore)
defaultMapping.identificationAttributes = ["extId"]
let mappingDictionary:[String:String] = [
"storeId":"extId" ,
"storeName":"storeName" ,
"storeAddress1":"address1" ,
"storeAddress2":"address2" ,
"storeCity":"city" ,
"storeState":"state" ,
"storeZipCode":"zipCode" ,
"stoerGfCount":"totalCount",
"storeListCount":"inListCount",
"storeDistance":"distance"
]
defaultMapping.addAttributeMappingsFromDictionary(mappingDictionary)
//HERE IS MY RELATIONSHIP MAPPING:
let lspMapping = LocatorStoreProduct.defaultMapping(objectManager)
let relationshipMapping = RKRelationshipMapping(fromKeyPath: "products", toKeyPath: "locatorStoreProducts", withMapping: lspMapping)
defaultMapping.addPropertyMapping(relationshipMapping)
return defaultMapping
}
几个小时来一直盯着这个,看不出我丢失了什么钥匙。代码是正确的。我已将我的obj从LocatorStoreProducts重命名为LocatorStoreProduct。在重构中错过了一个明显的位置