[PR] 팔로우 기능 개발

OnionHotSayYo/src/main/java/org/omoknoone/onionhotsayyo/follow/command/aggregate/Follow.java

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+package org.omoknoone.onionhotsayyo.follow.command.aggregate;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+@Entity
+@Table(name = "follow")
+public class Follow {
+
+	@Id
+	@Column(name = "follow_id")
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	private int followId;
+
+	@Column(name = "from_member_id")
+	private String fromMemberId;
+
+	@Column(name = "to_member_id")
+	private String toMemberId;
+
+	public Follow() {
+	}
+
+	public Follow(int followId, String fromMemberId, String toMemberId) {
+		this.followId = followId;
+		this.fromMemberId = fromMemberId;
+		this.toMemberId = toMemberId;
+	}
+
+	public int getFollowId() {
+		return followId;
+	}
+
+	public void setFollowId(int followId) {
+		this.followId = followId;
+	}
+
+	public String getFromMemberId() {
+		return fromMemberId;
+	}
+
+	public void setFromMemberId(String fromMemberId) {
+		this.fromMemberId = fromMemberId;
+	}
+
+	public String getToMemberId() {
+		return toMemberId;
+	}
+
+	public void setToMemberId(String toMemberId) {
+		this.toMemberId = toMemberId;
+	}
+
+	@Override
+	public String toString() {
+		return "Follow{" +
+			"followId=" + followId +
+			", fromMemberId='" + fromMemberId + '\'' +
+			", toMemberId='" + toMemberId + '\'' +
+			'}';
+	}
+}

OnionHotSayYo/src/main/java/org/omoknoone/onionhotsayyo/follow/command/controller/FollowController.java

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+package org.omoknoone.onionhotsayyo.follow.command.controller;
+
+import java.util.List;
+
+import org.modelmapper.ModelMapper;
+import org.omoknoone.onionhotsayyo.follow.command.aggregate.Follow;
+import org.omoknoone.onionhotsayyo.follow.command.dto.FollowDTO;
+import org.omoknoone.onionhotsayyo.follow.command.service.FollowService;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/follows")
+public class FollowController {
+
+	private FollowService followService;
+	private ModelMapper modelMapper;
+
+	public FollowController(FollowService followService, ModelMapper modelMapper) {
+		this.followService = followService;
+		this.modelMapper = modelMapper;
+	}
+
+	// 팔로우
+	@PostMapping("/follow")
+	public ResponseEntity<Follow> followMember (@RequestBody FollowDTO newFollow) {
+
+		followService.followMember(newFollow);
+
+		Follow responseFollow = modelMapper.map(newFollow, Follow.class);
+
+		return ResponseEntity.status(HttpStatus.CREATED).body(responseFollow);
+	}
+
+	// 언팔로우
+	@DeleteMapping("/unfollow/{fromMemberId}/{toMemberId}")
+	public void unfollowMember(@PathVariable(name = "fromMemberId") String fromMemberId,
+								@PathVariable(name = "toMemberId") String toMemberId) {
+		followService.unfollowMember(fromMemberId, toMemberId);
+	}
+
+	// 내가 팔로우 한 목록 조회
+	@GetMapping("list/myfollow/{memberId}")
+	public ResponseEntity<List<MemberDTO>> viewFollowListByMe (@PathVariable(name = "memberId") String memberId) {
+		List<FollowDTO> followingDTOList = followService.selectAllFollowing(memberId);
+
+		/* memberId로 user 정보 모두 조회 하는 메소드 생성 요망 */
+		List<MemberDTO> memberDTOList = memberService.selectAllByMemberId(followingDTOList);
+
+		return ResponseEntity.status(HttpStatus.OK).body(memberDTOList);
+	}
+
+	// 나를 팔로우 한 목록 조회
+	@GetMapping("/list/myfollowers/{memberId}")
+	public ResponseEntity<List<MemberDTO>> viewMyFollowerList (@PathVariable(name = "memberId") String memberId) {
+		List<FollowDTO> followerDTOList = followService.selectAllFollower(memberId);
+		List<MemberDTO> memberDTOList = memberService.selectAllByMemberId(followerDTOList);
+
+		return ResponseEntity.status(HttpStatus.OK).body(memberDTOList);
+	}
+
+
+
+}
+

OnionHotSayYo/src/main/java/org/omoknoone/onionhotsayyo/follow/command/dto/FollowDTO.java

@@ -0,0 +1,49 @@
+package org.omoknoone.onionhotsayyo.follow.command.dto;
+
+public class FollowDTO {
+	private int followId;
+	private String fromMemberId;
+	private String toMemberId;
+
+	public FollowDTO() {
+	}
+
+	public FollowDTO(int followId, String fromMemberId, String toMemberId) {
+		this.followId = followId;
+		this.fromMemberId = fromMemberId;
+		this.toMemberId = toMemberId;
+	}
+
+	public int getFollowId() {
+		return followId;
+	}
+
+	public void setFollowId(int followId) {
+		this.followId = followId;
+	}
+
+	public String getFromMemberId() {
+		return fromMemberId;
+	}
+
+	public void setFromMemberId(String fromMemberId) {
+		this.fromMemberId = fromMemberId;
+	}
+
+	public String getToMemberId() {
+		return toMemberId;
+	}
+
+	public void setToMemberId(String toMemberId) {
+		this.toMemberId = toMemberId;
+	}
+
+	@Override
+	public String toString() {
+		return "FollowDTO{" +
+			"followId=" + followId +
+			", fromMemberId='" + fromMemberId + '\'' +
+			", toMemberId='" + toMemberId + '\'' +
+			'}';
+	}
+}

OnionHotSayYo/src/main/java/org/omoknoone/onionhotsayyo/follow/command/repository/FollowRepository.java

@@ -0,0 +1,12 @@
+package org.omoknoone.onionhotsayyo.follow.command.repository;
+
+import java.util.List;
+
+import org.omoknoone.onionhotsayyo.follow.command.aggregate.Follow;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface FollowRepository extends JpaRepository<Follow, Integer> {
+	List<Follow> findAllByFromMemberId(String memberId);
+
+	List<Follow> findAllByToMemberId(String memberId);
+}

OnionHotSayYo/src/main/java/org/omoknoone/onionhotsayyo/follow/command/service/FollowService.java

@@ -0,0 +1,17 @@
+package org.omoknoone.onionhotsayyo.follow.command.service;
+
+import java.util.List;
+
+import org.omoknoone.onionhotsayyo.follow.command.dto.FollowDTO;
+
+public interface FollowService {
+
+	// public boolean existsByFromMemberIdAndToMemberId(FollowDTO followDTO);
+	public void followMember(FollowDTO followDTO);
+
+	public void unfollowMember(String fromMemberId, String toMemberId);
+
+	List<FollowDTO> selectAllFollowing(String memberId);
+
+	List<FollowDTO> selectAllFollower(String memberId);
+}

OnionHotSayYo/src/main/java/org/omoknoone/onionhotsayyo/follow/command/service/FollowServiceImpl.java

@@ -0,0 +1,65 @@
+package org.omoknoone.onionhotsayyo.follow.command.service;
+
+import java.util.List;
+
+import org.modelmapper.ModelMapper;
+import org.omoknoone.onionhotsayyo.follow.command.aggregate.Follow;
+import org.omoknoone.onionhotsayyo.follow.command.dto.FollowDTO;
+import org.omoknoone.onionhotsayyo.follow.command.repository.FollowRepository;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+public class FollowServiceImpl implements FollowService {
+
+	private final FollowRepository followRepository;
+	private final ModelMapper modelMapper;
+
+	public FollowServiceImpl(FollowRepository followRepository, ModelMapper modelMapper) {
+		this.followRepository = followRepository;
+		this.modelMapper = modelMapper;
+	}
+
+	@Transactional
+	@Override
+	// 사용자가 다른 사용자를 팔로우하는 메소드 followMember
+	public void followMember(FollowDTO followDTO) {
+		// if(!existsByFromMemberIdAndToMemberId(followDTO)) {
+		Follow follow = modelMapper.map(followDTO, Follow.class);
+		followRepository.save(follow);
+		// }
+	}
+
+	@Transactional
+	@Override
+	// 언팔로우
+	public void unfollowMember(String fromMemberId, String toMemberId) {
+		List<Follow> followList = followRepository.findAll();
+
+		for (Follow follow : followList) {
+			if (follow.getFromMemberId().equals(fromMemberId) &&
+				follow.getToMemberId().equals(toMemberId)) {
+				followRepository.deleteById(follow.getFollowId());
+			}
+		}
+	}
+
+	@Override
+	public List<FollowDTO> selectAllFollowing(String memberId) {
+		List<Follow> followList = followRepository.findAllByFromMemberId(memberId);
+		return followList.stream().map(follow -> modelMapper.map(followList, FollowDTO.class)).toList();
+	}
+
+	@Override
+	public List<FollowDTO> selectAllFollower(String memberId) {
+		List<Follow> followList = followRepository.findAllByToMemberId(memberId);
+		return followList.stream().map(follow -> modelMapper.map(followList, FollowDTO.class)).toList();
+	}
+
+	// @Override
+	// public boolean existsByFromMemberIdAndToMemberId(FollowDTO followDTO) {
+	//
+	// 	return false;
+	// }
+
+}