ios - Return unique/distinct values with Realm query -


i have message/rlmobject model has nsstring *jabberid property/row , want retrieve every unique value inside row.

in other word, want retrieve non-repeated jabberid values message model. can out figuring this?

the way use coredata using returnsdistinctresults setting on nsfetchrequest.

functional programming approach since swift has it, , realm lazy loads; not easy/available solution in objective-c swift @ least: swift

let distincttypes = reduce(realm().objects(user), []) { $0 + (!contains($0, $1.type) ? [$1.type] : [] ) }

updated:

swift reduce kind of performance intensive, allocating bunch of intermediate array's, instead following should better performance wise, must explicitly cast

let distincttypes = array(set(realm().objects(user).valueforkey("type") as! [string]))

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