Object-Oriented Programming: Beyond the Basics
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In this demo, your going to write some logic to determine whether a contact is a person or a company. The first thing to do is introduce the ability to mark a contact as a company. Open the starter Playground. It’s been refactored into separate files. Expand the navigator by clicking the Hide/Show navigator button. Expand the Sources folder, then open the ContactCard.swift file. Add this new field to the ContactCard definition:
public class ContactCard {
let contactID: UUID
var firstName: String
var lastName: String
var phoneNumber: String
var relatedContacts: [UUID]
public var isCompany: Bool // new code
...
public init(firstName: String, lastName: String, phoneNumber: String) {
self.firstName = firstName
self.lastName = lastName
self.phoneNumber = phoneNumber
contactID = UUID()
relatedContacts = []
isCompany = false // new code
}
let kodeco = ContactCard(firstName: "Kodeco", lastName: "", phoneNumber: "1111111111")
kodeco.isCompany = true
let razeware = ContactCard(firstName: "Razeware", lastName: "", phoneNumber: "1111111111")
razeware.isCompany = true
print(kodeco.contactInformation())
print(razeware.contactInformation())
//print("Ehab contact contains Tim contact: \(containsTim)")
//print("Tim contact contains Ehab contact: \(containsEhab)")
kodeco.addRelatedContact(razeware)
kodeco.addRelatedContact(ehabContact)
print(ehabContact.contactInformation())
public func addRelatedContact(_ contact: ContactCard) {
relatedContacts.append(contact.contactID)
if isCompany == true && contact.isCompany == true {
print("Both this contact and the new contact are companies. Adding 2-way relationship")
contact.relatedContacts.append(contactID)
} else if isCompany == false && contact.isCompany == false {
print("Both this contact and the new contact are people. Adding 2-way relationship")
contact.relatedContacts.append(contactID)
}
}
public func addRelatedContact(_ contact: ContactCard) {
relatedContacts.append(contact.contactID)
if isCompany == contact.isCompany {
print("Both this contact and the new contact are the same type. Adding 2-way relationship")
contact.relatedContacts.append(contactID)
}
}