swift -Realm 예제 1
✅ UserInfo 테이블을 생성한다.
import Foundation
import RealmSwift
class UserInfo: Object {
@objc dynamic var name = ""
@objc dynamic var age = 0
@objc dynamic var gender = ""
}
✅ 객체 저장
func makeUserInfo(_ name:String, _ age:Int, _ gender:String) -> UserInfo {
//Data 객체
let userinfo = UserInfo()
userinfo.name = name
userinfo.age = age
userinfo.gender = gender
return userinfo
}
//저장
@IBAction func save(_ sender: Any) {
let kang = self.makeUserInfo("kang", 12, "남")
let kim = self.makeUserInfo("kim", 22, "남")
let park = self.makeUserInfo("park", 32, "남")
try! realmInstance.write{
realmInstance.add(kang)
realmInstance.add(kim)
realmInstance.add(park)
}
self.label.text = "저장완료"
}
✅ 수정 - 업데이트
@IBAction func update(_ sender: Any) {
//수정할 객체
if let userinfo = realmInstance.objects(UserInfo.self).filter(NSPredicate(format: "name=%@", textField.text ?? "NO Rapper")).first{
//수정할 내용
try! realmInstance.write{
userinfo.name = "tiger"
userinfo.age = 56
userinfo.gender = "여"
}
self.label.text = "\(textField.text!)가 tiger 로 변경되었습니다."
}else{
self.label.text = "없어요.."
}
}
✅ 삭제
@IBAction func del2(_ sender: Any) {
if let userinfo = realmInstance.objects(UserInfo.self).filter(NSPredicate(format: "name=%@", textField.text ?? "NO Rapper")).first{
try! realmInstance.write{
realmInstance.delete(userinfo)
}
self.label.text = "삭제되었씁니다."
}else{
print("없어요..")
}
}
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