Question

我尝试创建CBLModel对象并将其保存在couchbase lite中。保存文档时没有错误，但是从数据库中检索文档时，文档的属性始终为零。

// model

class TestModelUser: CBLModel {
    var userName:NSString?
}

//创建并保存

let userModel:TestModelUser = TestModelUser(newDocumentInDatabase: db)
userModel.userName = "test user name 10"
userModel.setValue(NSStringFromClass(TestModelUser), ofProperty: "type")
let saved = userModel.save(&error)
if saved {
    println("saved")
}else{
    if let err:NSError = error {
        println(err.localizedDescription)
    }
}

// retrive

let dbView:CBLView = db.viewNamed("userView")
dbView.setMapBlock({ (document, emit) -> Void in
    emit(document["_id"], document)
    if let docType = document["type"] as? String {
        if docType == NSStringFromClass(TestModelUser) {
            emit(document["_id"], document)
        }
    }
    }, version: "5")

let queryResult1:CBLQueryEnumerator = db.viewNamed("userView").createQuery().run(&error)
for row:CBLQueryRow in queryResult1.allObjects as [CBLQueryRow] {
    let user:TestModelUser = TestModelUser(forDocument: row.document)
    if let uName = user.userName {
        println(uName)
    }
}

并且user.userName总是为nil，也许还有另一种保存文档的方法？

Answer 1

解决。

Document属性应该有@NSManaged修饰符：

class UserModel: CBLModel {
    @NSManaged var userName:NSString?
}

感谢jens（https://forums.couchbase.com/t/swift-couchebase-lite-save-cblmodel-document-problem/2054）。

swift couchebase lite CBLModel文档属性未保存

1 个答案: