假设我有这门课程:
class Person {
var firstName: String!
var lastName: String!
var phoneNumber: String?
var email: String?
var address: String?
}
现在我实例化了这个:
let person1 = Person()
person1.firstName = "Nicolas"
person1.lastName = "Cage"
person1.phoneNumber = "999-999-999"
person1.address = "No 123, NYC"
let person2 = Person()
person2.firstName = "Nicolas"
person2.lastName = "Cage"
person2.phoneNumber = "123-1234-1234"
person2.address = "No 123, NYC"
person2.email = "nicolas@nicolas.com"
let person3 = Person()
person3.firstName = "John"
person3.lastName = "Travolta"
我有这个阵列:
let actors: [Person] = [person1, person2, person3]
如何在没有冲突的情况下组合/合并重复人员,并且还有冲突属性列表?
合并后Nicoals Cage
的预期属性值:
Nicolas
Cage
phoneNumber -> Conflict
No 123, NYC
nicolas@nicolas.com
答案 0 :(得分:0)
private func merge(actors:[Person]) -> [Person] {
var uniqueActors = [Person]()
var duplicatedActors = [Person]()
//split actors into arrays
for actor in actors {
if uniqueActors.contains(where: { $0.firstName == actor.firstName &&
$0.lastName == actor.lastName}) {
duplicatedActors.append(actor)
} else {
uniqueActors.append(actor)
}
}
//merge duplicated into unique
for duplicatedActor in duplicatedActors {
let uniqueActor = uniqueActors.filter({ $0.firstName == duplicatedActor.firstName &&
$0.lastName == duplicatedActor.lastName }).first
if let uniqueActor = uniqueActor {
uniqueActor.phoneNumber = self.mergeProperty(valueOne: uniqueActor.phoneNumber, valueTwo: duplicatedActor.phoneNumber)
uniqueActor.address = self.mergeProperty(valueOne: uniqueActor.address, valueTwo: duplicatedActor.address)
uniqueActor.email = self.mergeProperty(valueOne: uniqueActor.email, valueTwo: duplicatedActor.email)
}
}
return uniqueActors
}
//merge properties of 2 objects
private func mergeProperty(valueOne: String?, valueTwo: String?) -> String? {
var isFirstPropertyExist = false
var isSecondPropertyExist = false
if let valueOne = valueOne, valueOne != "" {
isFirstPropertyExist = true
}
if let valueTwo = valueTwo, valueTwo != "" {
isSecondPropertyExist = true
}
var mergedValue : String?
switch (isFirstPropertyExist, isSecondPropertyExist) {
case (true, true):
if valueOne != valueTwo {
mergedValue = "Conflict"
//here you can print or throw an Error
} else {
mergedValue = valueOne
//random (equal values)
}
case (true, false):
mergedValue = valueOne
case (false, true):
mergedValue = valueTwo
case (false, false):
mergedValue = ""
//or you can return nil
}
return mergedValue
}
我认为它可以帮到你。
您可以将func mergeProperty
传递给Person类的扩展,将func merge
传递给Array类的扩展,其中object是Person