Use a predicate to search a NSMutableArray of Objects

Question

I have a collection of contacts I would like to filter: var arraycontacts: NSMutableArray = []

arraycontacts contains a large list of FriendModel Objects:

    var friend = FriendModel(
        name: self.contactName(contact),
        phone: self.contactPhones(contact),
        email: self.contactEmails(contact),
        phoneString: self.contactPhonesString(contact)
    )
    self.arraycontacts.addObject(friend)

I'd like to be able to use filterContentSearchText, to limit this array to users that match or are LIKE a name string. Basically, I'd like to search by name.

This is my attempt:

func filterContentForSearchText(searchText: String, scope: String = "All") {
    let namePredicate = NSPredicate(format: "name like %@", searchText)
    let term = self.arraycontacts.filteredArrayUsingPredicate(namePredicate!)
    println(term)
}

My above code produces the following error: this class is not key value coding-compliant for the key name.

Obviously, the predicate can't see the name property on my FriendModel object. How can I fix my query?

Thanks!

Fogmeister · Accepted Answer · 2015-02-26 17:34:42Z

4

First, drop the NSMutableArray and just use var arrayContacts: [FriendModel] = [].

Then use the filter method on the array.

var friend = FriendModel(
        name: self.contactName(contact),
        phone: self.contactPhones(contact),
        email: self.contactEmails(contact),
        phoneString: self.contactPhonesString(contact)
    )
self.arraycontacts.append(friend)

let filteredArray = self.arrayContacts.filter() {
   $0.name.hasPrefix(searchString)
}

Or something like that anyway.

Here you go...

enter image description here

edited Feb 26, 2015 at 17:34

answered Feb 26, 2015 at 17:23

Fogmeister

77.8k45 gold badges217 silver badges322 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

JZ. Over a year ago

Thank you! Perfect idea. The key to my problem was setting the array var array: [AnyObject] = self. arraycontacts in order to use the swift Array filter()

Collectives™ on Stack Overflow

Use a predicate to search a NSMutableArray of Objects

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related