Backup and Restore realm.io database

Question

I need to backup my default realm.io database and restore it from Dropbox. I'm using the Dropbox-iOS-SDK to upload and download it. When I tried to replace the current database file (Ex. default.realm) with the backup, the RLMRealm object was on the cache and I'm not able to clear that cache so I can't create a new instance of the Database.

Can I reload the RLMRealm object?

Here is the code:

    func reloadDB(fromPath: String) {
        let defaultParentPath = RLMRealm.defaultRealmPath().stringByDeletingLastPathComponent
        let dbPath = defaultParentPath.stringByAppendingPathComponent("db.realm")
        let dbLockPath = defaultParentPath.stringByAppendingPathComponent("db.realm.lock")

        NSFileManager.defaultManager().removeItemAtPath(dbPath, error: nil)
        NSFileManager.defaultManager().removeItemAtPath(dbLockPath, error: nil)

        NSFileManager.defaultManager().copyItemAtPath(fromPath, toPath: dbPath, error: nil)

        self.db = RLMRealm(path: dbPath, readOnly: false, error: nil)

        NSFileManager.defaultManager().removeItemAtPath(fromPath, error: nil)
    }

What is the best way to backup a Realm.io database?

score 1 · Accepted Answer · answered Mar 31 '15 at 20:10

1

Backing up and restoring a Realm file from dropbox should work just fine, since the database is just a file. However, you must make sure you don't have any references to the existing realm before deleting it.

answered Mar 31 '15 at 20:10

segiddins

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should I delete the previous reference and then replace the file and create a new instance? How should I delete the reference? just set to nil? – Nicopuri Mar 31 '15 at 20:15
It doesn't working. I set `self.db = nil` before replace **db.realm** and it doesn't work – Nicopuri Mar 31 '15 at 20:27
be aware that any RLMObjects, RLMResults, or RLMArrays you have will also hold a strong reference to the realm – segiddins Mar 31 '15 at 20:37
Great!! I was forgetting one reference – Nicopuri Mar 31 '15 at 20:55

Backup and Restore realm.io database

1 Answers1