Question

我有一个待办事项应用程序，正在使用领域来存储数据。我已经编写了用于写入数据库和检索的数据库代码。

当我第一次输入数据库时，一切正常，这就是将数据输入数据库，但是当我尝试将另一个对象输入数据库时，

由于未捕获的异常“ RLMException”而终止应用程序，原因：“尝试在写事务之外修改对象-首先在RLMRealm实例上调用beginWriteTransaction。”

func createCategory(name: String, color: String, isCompleted: Bool) -> Void {
    category.name = name
    category.color = color
    category.isCompleted = false
    DBManager.instance.addData(object: category)
}

DBManager

func addData(object: CategoryModel)   {
    try! database.write {
        database.add(object, update: true)
        print("Added new object")
    }
}

添加类别IBaction

CategoryFunctions.instance.createCategory(name: name, color: color, isCompleted: false)

Answer 1

此

.createCategory(name: name, color: color, isCompleted: false)

更改已添加对象的属性，然后尝试再次写入它，您需要创建一个新对象，也许您需要类似

func createCategory(name: String, color: String, isCompleted: Bool) -> Void {
        let category = Category()
        category.name = name
        category.color = color
        category.isCompleted = isCompleted
        DBManager.instance.addData(object: category)

        // or
        let category = Category(name:name,color:color,isCompleted:isCompleted)
        DBManager.instance.addData(object: category)

    }

Answer 2

创建一个新类别：

func createCategory(name: String, color: String, isCompleted: Bool) {
    let newCategory = Category(name: name, color: color, isCompleted: isCompleted)
    DBManager.instance.addData(object: newCategory)
}

写入领域数据库时崩溃

2 个答案: