check unique phone

src/main/java/ru/soune/nocopy/dto/MessageCode.java

@@ -3,6 +3,7 @@ package ru.soune.nocopy.dto;
 public enum MessageCode {
     SUCCESS(0, "Operation successful"),
     REG_EMAIL_EXISTS(1, "Email already registered"),
+    REG_EMAIL_OR_PHONE_EXISTS(1, "Email or phone already registered"),
     INVALID_FIELD(2, "Invalid field"),
     INVALID_JSON_BODY(2, "Invalid fields in JSON object"),
     MSG_ID_NOT_FOUND(4, "Message id not found"),

src/main/java/ru/soune/nocopy/entity/User.java

@@ -42,6 +42,7 @@ public class User {
     private String password;
 
     @Size(min = 11, max = 14)
+    @Column(unique = true)
     private String phone;
 
     @Enumerated(EnumType.STRING)

src/main/java/ru/soune/nocopy/handler/RegRequestHandler.java

@@ -33,13 +33,15 @@ public class RegRequestHandler implements RequestHandler {
     public BaseResponse handle(BaseRequest request) throws ValidationException {
         RegRequest regRequest = objectMapper.convertValue(request.getMessageBody(), RegRequest.class);
 
-        if (userRepository.existsByEmail(regRequest.getEmail())) {
+        if (userRepository.existsByEmail(regRequest.getEmail()) || userRepository.existsByPhone(regRequest.getPhone())) {
             RegAnswer regAnswer = new RegAnswer();
             regAnswer.setFieldErrors(Arrays.asList(Map.of("email", regRequest.getEmail())));
+            regAnswer.setFieldErrors(Arrays.asList(Map.of("phone", regRequest.getPhone())));
 
-            throw new NotValidFieldException("User already exists with email: " + regRequest.getEmail(),
-                    new BaseResponse(request.getMsgId(), MessageCode.REG_EMAIL_EXISTS.getCode(),
-                    MessageCode.REG_EMAIL_EXISTS.getDescription(), regAnswer));
+            throw new NotValidFieldException("User already exists with email:" + regRequest.getEmail() + " or phone: " +
+                    regRequest.getPhone(), new BaseResponse(request.getMsgId(),
+                    MessageCode.REG_EMAIL_OR_PHONE_EXISTS.getCode(),
+                    MessageCode.REG_EMAIL_OR_PHONE_EXISTS.getDescription(), regAnswer));
         }
 
         BindingResult bindingResult = new BeanPropertyBindingResult(regRequest, "regRequest");

src/main/java/ru/soune/nocopy/repository/UserRepository.java

@@ -1,5 +1,6 @@
 package ru.soune.nocopy.repository;
 
+import jakarta.validation.constraints.Size;
 import org.springframework.data.jpa.repository.JpaRepository;
 import ru.soune.nocopy.entity.User;
 
@@ -8,4 +9,5 @@ import java.util.Optional;
 public interface UserRepository extends JpaRepository<User, Long> {
     Optional<User> findByEmail(String email);
     boolean existsByEmail(String email);
+    boolean existsByPhone(@Size(min = 11, max = 14) String phone);
 }