Cache with RealmSwift

[arden]

when i'm use cache and RealmSwift，for example:

import Foundation
import RealmSwift
import ObjectMapper
import Cache

class Session: Object, Mappable {
dynamic var token = ""
dynamic var ttl: Double = 0

required convenience init?(_ map: Map) {
    self.init()
}

override static func primaryKey() -> String? {
    return "token"
}

func mapping(map: Map) {
    token               <- map["token"]
    ttl                 <- map["ttl"]
}

}

extension Session: Cachable {

typealias CacheType = Session

static func decode(data: NSData) -> CacheType? {
    Log.debug("decode")
    var object: CacheType?

    do {
        object = try DefaultCacheConverter<CacheType>().decode(data)
        Log.debug("object: \(object)")
    } catch {}

    return object
}

func encode() -> NSData? {
    var data: NSData?
    Log.debug("encode")
    do {
        data = try DefaultCacheConverter<CacheType>().encode(self)
    } catch {}

    return data
}

}

    let session = Session()
    session.token = "aaa"
    session.ttl = 20
    syncCache.add("tujiaoSession", object: session, expiry: .Date(NSDate().dateByAddingTimeInterval(100000)))

    let s:Session? = syncCache.object("tujiaoSession")
    Log.debug("ssssss: \(s)")

there have some errors for decode method.

[vadymmarkov]

@arden Could you please specify what kind of errors do you get?

[arden]

this error is because get cache data from Cache while have no data with given cache name.

[zenangst]

@arden When I started reading this issue, it was interesting but seeing as you are trying to cache an actual Realm object, you now have my full attention. Mind sharing some more information about what you are doing here, just to ease my curiosity. Think about the cats...

Also, to help with debugging, it would help a lot if you pasted some of the error logs that you get.

[arden]

OK，i'm use the Cache in my project, but found some errors, so i have removed the Cache from my project.
Later，i'm will to test again, and paste the errors to this topic.

[RamonGilabert]

Why would you want to cache a Realm object, @arden? That would be like using Core Data to save Realm objects in a sense, does it make any sense?

[arden]

@RamonGilabert Because i'm hope use only one Model class instead of serveral Model classes, that they are look the same.

[vadymmarkov]

@arden DefaultCacheConverter is experimental helper, it's better to implement Cachable protocol in some other way, for example you could create a dictionary and cache it, then instantiate your object from this dictionary since you have Mappable.

[arden]

@vadymmarkov thanks, i will try again use your proposal。

[zenangst]

I'll close this issue for lack of activity, feel free to reopen if you have further issues.