[HOTFIX] Swagger CORS 관련 오류 조치 (#91)

* 🐛fix: Swagger cors 오류 조치

* 🐛fix: User Entity cnt필드 관련 null 오류 조치

* 🐛fix: 회원가입 시 닉네임 중복검사 로직 추가

Author: Be-HinD

src/main/java/team/wego/wegobackend/auth/application/AuthService.java

@@ -13,6 +13,7 @@
 import team.wego.wegobackend.auth.application.dto.response.SignupResponse;
 import team.wego.wegobackend.auth.exception.DeletedUserException;
 import team.wego.wegobackend.auth.exception.InvalidPasswordException;
+import team.wego.wegobackend.auth.exception.NicknameAlreadyExistsException;
 import team.wego.wegobackend.auth.exception.UserAlreadyExistsException;
 import team.wego.wegobackend.auth.exception.UserNotFoundException;
 import team.wego.wegobackend.common.exception.AppErrorCode;
@@ -37,16 +38,18 @@ public class AuthService {
 
     /**
      * 회원가입
-     *
-     * @return
      */
     @Transactional
     public SignupResponse signup(SignupRequest request) {
-        // 이메일 중복 체크
+
         if (userRepository.existsByEmail(request.getEmail())) {
             throw new UserAlreadyExistsException();
         }
 
+        if (userRepository.existsByNickName(request.getNickName())) {
+            throw new NicknameAlreadyExistsException();
+        }
+
         User user = User.builder().email(request.getEmail())
             .password(passwordEncoder.encode(request.getPassword())).nickName(request.getNickName())
             .role(Role.ROLE_USER)   //default

src/main/java/team/wego/wegobackend/auth/exception/NicknameAlreadyExistsException.java

@@ -0,0 +1,11 @@
+package team.wego.wegobackend.auth.exception;
+
+import team.wego.wegobackend.common.exception.AppErrorCode;
+import team.wego.wegobackend.common.exception.AppException;
+
+public class NicknameAlreadyExistsException extends AppException {
+
+    public NicknameAlreadyExistsException() {
+        super(AppErrorCode.ALREADY_EXIST_NICKNAME);
+    }
+}

src/main/java/team/wego/wegobackend/user/domain/User.java

@@ -51,17 +51,17 @@ public class User extends BaseTimeEntity {
     @Column(name = "profile_message", length = 500)
     private String profileMessage;
 
-    @Column(name = "followee_count")
-    private int followeesCnt;
+    @Column(name = "followee_count", columnDefinition = "int default 0")
+    private Integer followeesCnt;
 
-    @Column(name = "follower_count")
-    private int followersCnt;
+    @Column(name = "follower_count", columnDefinition = "int default 0")
+    private Integer followersCnt;
 
-    @Column(name = "group_joined_count")
-    private int groupJoinedCnt;
+    @Column(name = "group_joined_count", columnDefinition = "int default 0")
+    private Integer groupJoinedCnt;
 
-    @Column(name = "group_created_count")
-    private int groupCreatedCnt;
+    @Column(name = "group_created_count", columnDefinition = "int default 0")
+    private Integer groupCreatedCnt;
 
     @Column(name = "notification_enabled", nullable = false)
     private Boolean notificationEnabled = false;