Swift Array of objects filtering - ios

Question

I've the following array of objects which I'm trying to filter and return for a searchDosplayController.
var family = [Family]()// fetchedFamily
var filteredFamily: [Family]! // filter fetched events
And that is how, I'm filtering it:
func updateSearchResultsForSearchController(searchController: UISearchController) {
let searchText = searchController.searchBar.text
self.filteredProvince = provinces
if !searchText.isEmpty {
let searchPredicate = NSPredicate(format: "name CONTAINS[c] %#", searchText)
let array = (filteredProvince as NSArray).filteredArrayUsingPredicate(searchPredicate)
filteredProvince = array as! [Province]
}
However nothing is getting returned when I'm searching. And I tried to do it in this way:
filteredFamily = searchText.isEmpty ? family : family.filter({(dataString: String) -> Bool in
return dataString.rangeOfString(searchText, options: .CaseInsensitiveSearch) != nil
})
But, I'm receiving the following error: 'Family is not a subtype of String'. Is there any better way to filter the Family? Because, the filtered result has to be sent back to searchDisplayController.
Thanks in advance.

Answer 1

So we have a Family class that does look like this right?
class Family {
let name : String
init(name:String) {
self.name = name
}
}
Then we have a list of families:
var families = [Family]()
And we want to extract all the families where the name property contains a given text.
let searchText = "something here"
Good, first of all we add this extension to the String struct.
extension String {
func contains(find: String) -> Bool {
return self.rangeOfString(find) != nil
}
}
And finally we can filter the families writing:
let filtered = families.filter { $0.name.contains(searchText) }
Hope this helps.