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当我尝试执行NSBatchUpdateRequest时,我总是收到以下错误。NSBatchUpdateRequest抛出NSInternalInconsistencyException
*** Terminating app due to uncaught exception
'NSInternalInconsistencyException', reason: 'Unknown command type
<NSBatchUpdateRequest : entity = Person, properties = {
"(<NSAttributeDescription: 0x6000000ff980>), name title, isOptional 1, isTransient 0, entity (null), renamingIdentifier title, validation predicates (\n), warnings (\n), versionHashModifier (null)\n userInfo {\n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null)" = "\"sometitle\"";
}, subentities = 1'
当错误日志在构造函数中正确指定时,错误日志显示“entity(null)”。
我正在运行这是一个测试环境,并想知道NSBatchUpdateRequest是否支持NSInMemoryStoreType的NSPersistentStoreCoordinator。我无法找到文档中的任何内容说它不支持。
以下是我正在使用的代码。实体和属性参数是正确的,不应该导致问题。
-(BOOL) updatePersonNamesFrom:(NSString*)oldName newName:(NSString*)newName {
NSBatchUpdateRequest* updateRequest = [[NSBatchUpdateRequest alloc] initWithEntityName:@"Person"]; // The person model definitely exists
NSLog(@"entity name: %@", updateRequest.entityName); // This logs the correct entity name
// Adding or removing a predicate has no effect
// [updateRequest setPredicate:[NSPredicate predicateWithFormat:@"name = %@", oldName];
updateRequest.propertiesToUpdate = @{@"name" : newName}; // Name field definitely exists on Person
NSError* error = nil;
[m_context executeRequest:updateRequest error:&error];
// Also tried this
// [m_context.persistentStoreCoordinator executeRequest:updateRequest withContext:self error:&error];
return error != nil;
}
如果有人有任何想法,我很乐意听到它。