I'm using this extension of Array to groupBy:
func groupBy <U> (groupingFunction group: (Element) -> U) -> [U: Array] {
var result = [U: Array]()
for item in self {
let groupKey = group(item)
// If element has already been added to dictionary, append to it. If not, create one.
if result.has(groupKey) {
result[groupKey]! += [item]
} else {
result[groupKey] = [item]
}
}
return result
}
And trying to make a dictionary from teamId and rank (custom properties of my object from array).
self.items = myArray.groupBy {
team in
if team.rank == nil {
return team.teamId!
} else {
return team.rank!
}
}
My case looks something like this:
[{
"team_id": "4",
"team_name": "T16",
"rank": "3"
},
,{
"team_id": "4",
"team_name": "T16",
"rank": "2"
},
{
"team_id": "4",
"team_name": "T16",
"rank": "1"
}
,{
"team_id": "5",
"team_name": "T16",
"rank": null
}]
desired output:
let teams : [String: TeamItem] = [ "4" : TeamItem.rank3, "4-2" : TeamItem.rank2, "4-1" : TeamItem.rank1, "5" : TeamItem]
EDIT 2
func requestTeamData(listener:([TeamItem]) -> ()) {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) {
let baseURL: String = self._appSettings.getPathByName(EndPoint.BASE_URL.rawValue) as! String
let paths: NSDictionary = self._appSettings.getPathByName(EndPoint.PATH.NAME.rawValue) as! NSDictionary
let teamPaths: NSDictionary = paths.objectForKey(EndPoint.PATH.TEAM.KEY.rawValue) as! NSDictionary
let path = teamPaths.valueForKey(EndPoint.PATH.TEAM.PATH.rawValue) as! String
request(.GET, baseURL + path, parameters:[:])
.responseCollection { (_, _, team: [TeamItem]?, error) in
if let team = team {
dispatch_async(dispatch_get_main_queue()) {
listener(team)
}
}
}
}
}
Calling the API, straightforward
DataProvider.getInstance().requestTeamData({(items:[TeamItem]) -> () in
//Getting the items from the API
})
EDIT 1
@objc final class TeamItem: Equatable, ResponseObjectSerializable, ResponseDictionarySerializable {
let firstName: String?
let lastName: String?
let seasonId: String?
let seasonName: String?
let teamId: String?
let teamName: String?
let rank: String?
let positionId: String?
let positionName: String?
let number: String?
let birthDate: String?
let birthPlace: String?
let citizenship: String?
let height: String?
let weight: String?
let maritalStatus: String?
let model: String?
let hobby: String?
let food: String?
let book: String?
let movie: String?
let wish: String?
let message: String?
let biography: String?
let imageURL: String?
let teamImageURL: String?
required init?(response: NSHTTPURLResponse, representation: AnyObject) {
self.firstName = representation.valueForKeyPath(EndPoint.Keys.Team.FirstName.rawValue) as? String
self.lastName = representation.valueForKeyPath(EndPoint.Keys.Team.LastName.rawValue) as? String
self.seasonId = representation.valueForKeyPath(EndPoint.Keys.Team.SeasonId.rawValue) as? String
self.seasonName = representation.valueForKeyPath(EndPoint.Keys.Team.SeasonName.rawValue) as? String
self.teamId = representation.valueForKeyPath(EndPoint.Keys.Team.TeamId.rawValue) as? String
self.teamName = (representation.valueForKeyPath(EndPoint.Keys.Team.TeamName.rawValue) as? String)!
self.rank = representation.valueForKeyPath(EndPoint.Keys.Team.Rank.rawValue) as? String
self.positionId = representation.valueForKeyPath(EndPoint.Keys.Team.PositionId.rawValue) as? String
self.positionName = representation.valueForKeyPath(EndPoint.Keys.Team.PositionName.rawValue) as? String
self.number = representation.valueForKeyPath(EndPoint.Keys.Team.Number.rawValue) as? String
self.birthDate = representation.valueForKeyPath(EndPoint.Keys.Team.BirthDate.rawValue) as? String
self.birthPlace = (representation.valueForKeyPath(EndPoint.Keys.Team.BirthPlace.rawValue) as? String)!
self.citizenship = representation.valueForKeyPath(EndPoint.Keys.Team.Citizenship.rawValue) as? String
self.height = representation.valueForKeyPath(EndPoint.Keys.Team.Height.rawValue) as? String
self.weight = representation.valueForKeyPath(EndPoint.Keys.Team.Weight.rawValue) as? String
self.maritalStatus = representation.valueForKeyPath(EndPoint.Keys.Team.MaritalStatus.rawValue) as? String
self.model = representation.valueForKeyPath(EndPoint.Keys.Team.Model.rawValue) as? String
self.hobby = representation.valueForKeyPath(EndPoint.Keys.Team.Hobby.rawValue) as? String
self.food = representation.valueForKeyPath(EndPoint.Keys.Team.Food.rawValue) as? String
self.book = representation.valueForKeyPath(EndPoint.Keys.Team.Book.rawValue) as? String
self.movie = representation.valueForKeyPath(EndPoint.Keys.Team.Movie.rawValue) as? String
self.wish = representation.valueForKeyPath(EndPoint.Keys.Team.Wish.rawValue) as? String
self.message = representation.valueForKeyPath(EndPoint.Keys.Team.Message.rawValue) as? String
self.biography = representation.valueForKeyPath(EndPoint.Keys.Team.Biography.rawValue) as? String
self.imageURL = representation.valueForKeyPath(EndPoint.Keys.Team.ImageURL.rawValue) as? String
self.teamImageURL = representation.valueForKeyPath(EndPoint.Keys.Team.TeamImageURL.rawValue) as? String
}
@objc static func collection(#response: NSHTTPURLResponse, representation: AnyObject) -> [TeamItem] {
var teamItemArray: [TeamItem] = []
if let representation = representation as? [[String: AnyObject]] {
for teamItemRepresentation in representation {
if let teamItem = TeamItem(response: response, representation: teamItemRepresentation) {
teamItemArray.append(teamItem)
}
}
}
return teamItemArray
}
}
func ==(lhs: TeamItem, rhs: TeamItem) -> Bool {
return lhs.lastName == rhs.lastName
}
}
EDIT
TeamItem.rank1 means actually that the value of the rank is 1 (the same for others)
This is what've need, hope will help someone:
@objc static func dictionary(#response: NSHTTPURLResponse, representation: AnyObject) -> [String: Array<TeamItem>] {
var teamItemDictionary: [String: Array<TeamItem>] = [:]
if let representation = representation as? [[String: AnyObject]] {
for teamItemRepresentation in representation {
if let teamItem = TeamItem(response: response, representation: teamItemRepresentation) {
if teamItem.rank != nil {
let teamKey = teamItem.teamId! + "-" + teamItem.rank!
if teamItem.teamId != EndPoint.Keys.Team.Type.rawValue {
if let team = teamItemDictionary[teamKey] as [TeamItem]? {
teamItemDictionary[teamKey]?.push(teamItem)
} else {
teamItemDictionary[teamKey] = []
teamItemDictionary[teamKey]?.push(teamItem)
}
}
} else {
if teamItem.teamId != EndPoint.Keys.Team.Type.rawValue {
if let team = teamItemDictionary[teamItem.teamId!] as [TeamItem]? {
teamItemDictionary[teamItem.teamId!]?.push(TeamItem)
} else {
teamItemDictionary[teamItem.teamId!] = []
teamItemDictionary[teamItem.teamId!]?.push(TeamItem)
}
}
}
}
}
}
return teamItemDictionary
}