CLAP-60 Feat: 닉네임으로 유저 찾는 메서드 구현

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- 관련: #19

Author: joowojr

src/main/java/clap/server/adapter/outbound/persistense/MemberPersistenceAdapter.java

@@ -4,8 +4,8 @@
 import clap.server.adapter.outbound.persistense.entity.member.constant.MemberStatus;
 import clap.server.adapter.outbound.persistense.mapper.MemberPersistenceMapper;
 import clap.server.adapter.outbound.persistense.repository.member.MemberRepository;
-import clap.server.application.port.outbound.member.LoadMemberPort;
 import clap.server.application.port.outbound.member.CommandMemberPort;
+import clap.server.application.port.outbound.member.LoadMemberPort;
 import clap.server.common.annotation.architecture.PersistenceAdapter;
 import clap.server.domain.model.member.Member;
 import lombok.RequiredArgsConstructor;
@@ -30,6 +30,12 @@ public Optional<Member> findActiveMemberById(final Long id) {
         return memberEntity.map(memberPersistenceMapper::toDomain);
     }
 
+    @Override
+    public Optional<Member> findByNickname(String nickname) {
+        Optional<MemberEntity> memberEntity = memberRepository.findByNickname(nickname);
+        return memberEntity.map(memberPersistenceMapper::toDomain);
+    }
+
     @Override
     public void save(final Member member) {
         MemberEntity memberEntity = memberPersistenceMapper.toEntity(member);

src/main/java/clap/server/adapter/outbound/persistense/repository/member/MemberRepository.java

@@ -10,4 +10,6 @@
 @Repository
 public interface MemberRepository extends JpaRepository<MemberEntity, Long> {
     Optional<MemberEntity> findByStatusAndMemberId(MemberStatus memberStatus, Long memberId);
+
+    Optional<MemberEntity> findByNickname(String nickname);
 }