AppleScript list of records to Swift Array (or better)

Question

I test a little OSX app based on this example which use a bridge to AppleScript to get simple infos from iTunes.

Like I said in the ComboDrums's comment (it's me), I have a script to get all my iTunes playlists in a tree but as soon as the return is more complex than a simple string, it fails.

So I'm looking for the way to convert the AppleScript's list returned to a Swift friendly object.

Any idea ?

Thx.

Script:

to getStaticPlaylistsTree()
    tell application "iTunes"
        set theList to {{theName:"Bibliothèque", theID:"66270731FDBE2C50", isFolder:false, theClass:library playlist, isSmart:false, theCount:37581}, {theName:"Clips vidéo", theID:"07D5032B96891D67", isFolder:false, theClass:user playlist, isSmart:true, theCount:283}}
    end tell
    return theList
end getStaticPlaylistsTree

The code is in the project example (github.com/hhas/Swift-AppleScriptObjC). I just added a method to get a static tree of some playlists like : to getStaticPlaylistsTree() tell application "iTunes" set theList to {{theName:"Bibliothèque", theID:"66270731FDBE2C50", isFolder:false, theClass:library playlist, isSmart:false, theCount:37581}, {theName:"Clips vidéo", theID:"07D5032B96891D67", isFolder:false, theClass:user playlist, isSmart:true, theCount:283}} end tell return theList. Thx. — user10177193
– user10177193, Commented Jan 20, 2019 at 15:16
I can't format the code because I can't post answer with my account... 😂 So sorry but I can't. Can you copy/paste the code in a simple AppleScript script? It is the same... to getStaticPlaylistsTree() tell application "iTunes" set theList to {{theName:"Bibliothèque", theID:"66270731FDBE2C50", isFolder:false, theClass:library playlist, isSmart:false, theCount:37581}, {theName:"Clips vidéo", theID:"07D5032B96891D67", isFolder:false, theClass:user playlist, isSmart:true, theCount:283}} end tell return theList end getStaticPlaylistsTree — user10177193
– user10177193, Commented Jan 21, 2019 at 14:14

Bharat Gadde · Accepted Answer · 2019-01-22 15:26:50Z

1

Firstly, Create the swift class or struct with a constructor having NSDictionary as parameter

struct SwiftModel {

    // Declare attributes

    init(dictionary: NSDictionary) {
        self.isFolder = dictionary.value(forKey: "isFolder") as! Bool
        self.isSmart = dictionary.value(forKey: "isSmart") as! Bool
        self.theCount = dictionary.value(forKey: "theCount") as? Int
        self.theID = dictionary.value(forKey: "theID") as? String
        self.theName = dictionary.value(forKey: "theName") as? String
        self.theClass = (dictionary.value(forKey: "theClass") as? NSAppleEventDescriptor)
    }
}

Then, Using flatMap or compactMap convert apple script list to Swift Array.

let listFromAppleScript = // List returned from apple script i.e self.iTunesBridge.getStaticPlaylistsTree
let staticPlayListTree = listFromAppleScript?.compactMap({SwiftModel(dictionary: $0 as! NSDictionary)})
print(staticPlayListTree![0].theName)

Output: Optional("Bibliothèque")

edited Jan 22, 2019 at 15:26

answered Jan 22, 2019 at 15:20

Bharat Gadde

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8 Comments

user10177193 Over a year ago

Ok thank you. CompactMap return a tree of the AppleScript list and flatMap an flat array of the list, right ?

user10177193 Over a year ago

And also, the getStaticPlaylistsTree to declare in the iTunesBridge.swift protocol needs to return a [NSString:AnyObject]? like in the trackInfo ? Thx.

Bharat Gadde Over a year ago

getStaticPlaylists can be of type [NSDictionary] or [[String:Any]]

Bharat Gadde Over a year ago

in this scenario you can use either compactMap or flatMap but for more clarification you can refer stackoverflow.com/questions/49291057/…

user10177193 Over a year ago

Ok thank you. But how the map do to get the children’s tree ? In my example there is no children but in the final tree there are a lot in the theChildren property.

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