使用Swift删除Realm模型 [英] Delete a Realm model with Swift
问题描述
我需要从Realm Cocoa数据库中删除旧的空模型.
I need to remove old, empty models from a Realm Cocoa database.
似乎有在Java中实现此目标的方法,但不在Swift中.正确吗?
There seems to be a way to do it in Java, but not in Swift. Is that correct?
如果您删除属性并启动迁移,Realm将删除表中的相应列:
If you remove a property and initiate a migration Realm will remove the corresponding column in the table:
class Dog: Object {
dynamic var name = ""
// dynamic var age = 0
}
但是,如果您完全删除模型定义,则迁移不会不删除表:
But, if you remove the model definition entirely, the migration does not remove the table:
// class Dog: Object {
// dynamic var name = ""
// dynamic var age = 0
// }
这是Realm Browser的屏幕截图,显示了我要删除的空表:
Here's a screenshot from Realm Browser showing the empty tables I want to delete:
推荐答案
You can call Migration.deleteData(_:)
within your migration block to specify that the named class should be completely removed from your Realm file.
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