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feat: forum
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‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/controller/ForumController.java‎

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package org.bounswe.jobboardbackend.forum.controller;
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import lombok.RequiredArgsConstructor;
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import org.bounswe.jobboardbackend.auth.model.User;
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import org.bounswe.jobboardbackend.auth.repository.UserRepository;
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import org.bounswe.jobboardbackend.forum.dto.*;
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import org.bounswe.jobboardbackend.forum.service.ForumService;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.security.core.annotation.AuthenticationPrincipal;
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import org.springframework.security.core.userdetails.UserDetails;
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import org.springframework.web.bind.annotation.*;
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import java.util.List;
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@RestController
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@RequestMapping("/api/forum")
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@RequiredArgsConstructor
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public class ForumController {
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private final ForumService forumService;
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private final UserRepository userRepository;
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private User getUser(UserDetails userDetails) {
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String username = userDetails.getUsername();
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return userRepository.findByUsername(username)
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.orElseThrow(() -> new RuntimeException("User not found: " + username));
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}
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@PostMapping("/posts")
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public ResponseEntity<PostResponse> createPost(@AuthenticationPrincipal UserDetails userDetails,
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@RequestBody CreatePostRequest request) {
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User user = getUser(userDetails);
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return ResponseEntity.status(HttpStatus.CREATED).body(forumService.createPost(user, request));
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}
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@GetMapping("/posts")
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public ResponseEntity<List<PostResponse>> findAllPosts() {
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return ResponseEntity.ok(forumService.findAllPosts());
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}
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@GetMapping("/posts/{id}")
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public ResponseEntity<PostResponse> findPostById(@PathVariable Long id) {
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return ResponseEntity.ok(forumService.findPostById(id));
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}
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@PutMapping("/posts/{id}")
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public ResponseEntity<PostResponse> updatePost(@PathVariable Long id,
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@AuthenticationPrincipal UserDetails userDetails,
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@RequestBody UpdatePostRequest request) {
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User user = getUser(userDetails);
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return ResponseEntity.ok(forumService.updatePost(id, user, request));
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}
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@DeleteMapping("/posts/{id}")
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public ResponseEntity<Void> deletePost(@PathVariable Long id, @AuthenticationPrincipal UserDetails userDetails) {
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User user = getUser(userDetails);
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forumService.deletePost(id, user);
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return ResponseEntity.noContent().build();
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}
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@PostMapping("/posts/{id}/comments")
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public ResponseEntity<CommentResponse> createComment(@PathVariable Long id,
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@AuthenticationPrincipal UserDetails userDetails,
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@RequestBody CreateCommentRequest request) {
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User user = getUser(userDetails);
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return ResponseEntity.status(HttpStatus.CREATED).body(forumService.createComment(id, user, request));
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}
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@PutMapping("/comments/{commentId}")
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public ResponseEntity<CommentResponse> updateComment(@PathVariable Long commentId,
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@AuthenticationPrincipal UserDetails userDetails, @RequestBody UpdateCommentRequest request) {
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User user = getUser(userDetails);
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return ResponseEntity.ok(forumService.updateComment(commentId, user, request));
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}
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@DeleteMapping("/comments/{commentId}")
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public ResponseEntity<Void> deleteComment(@PathVariable Long commentId,
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@AuthenticationPrincipal UserDetails userDetails) {
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User user = getUser(userDetails);
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forumService.deleteComment(commentId, user);
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return ResponseEntity.noContent().build();
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}
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@PostMapping("/comments/{commentId}/upvote")
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public ResponseEntity<Void> upvoteComment(@PathVariable Long commentId,
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@AuthenticationPrincipal UserDetails userDetails) {
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User user = getUser(userDetails);
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forumService.upvoteComment(commentId, user);
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return ResponseEntity.ok().build();
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}
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@DeleteMapping("/comments/{commentId}/upvote")
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public ResponseEntity<Void> removeUpvote(@PathVariable Long commentId,
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@AuthenticationPrincipal UserDetails userDetails) {
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User user = getUser(userDetails);
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forumService.removeUpvote(commentId, user);
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return ResponseEntity.ok().build();
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}
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@PostMapping("/comments/{commentId}/downvote")
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public ResponseEntity<Void> downvoteComment(@PathVariable Long commentId,
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@AuthenticationPrincipal UserDetails userDetails) {
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User user = getUser(userDetails);
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forumService.downvoteComment(commentId, user);
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return ResponseEntity.ok().build();
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}
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@DeleteMapping("/comments/{commentId}/downvote")
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public ResponseEntity<Void> removeDownvote(@PathVariable Long commentId,
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@AuthenticationPrincipal UserDetails userDetails) {
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User user = getUser(userDetails);
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forumService.removeDownvote(commentId, user);
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return ResponseEntity.ok().build();
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}
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}

‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/dto/CommentResponse.java‎

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package org.bounswe.jobboardbackend.forum.dto;
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import lombok.Builder;
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import lombok.Data;
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import org.bounswe.jobboardbackend.forum.model.ForumComment;
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import java.time.Instant;
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@Data
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@Builder
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public class CommentResponse {
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private Long id;
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private String content;
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private Long authorId;
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private String authorUsername;
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private Long postId;
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private Long parentCommentId;
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private Instant createdAt;
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private Instant updatedAt;
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private long upvoteCount;
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private long downvoteCount;
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public static CommentResponse from(ForumComment comment, long upvoteCount, long downvoteCount) {
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return CommentResponse.builder()
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.id(comment.getId())
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.content(comment.getContent())
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.authorId(comment.getAuthor().getId())
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.authorUsername(comment.getAuthor().getUsername())
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.postId(comment.getPost().getId())
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.parentCommentId(comment.getParentComment() != null ? comment.getParentComment().getId() : null)
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.createdAt(comment.getCreatedAt())
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.updatedAt(comment.getUpdatedAt())
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.upvoteCount(upvoteCount)
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.downvoteCount(downvoteCount)
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.build();
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}
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}

‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/dto/CreateCommentRequest.java‎

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package org.bounswe.jobboardbackend.forum.dto;
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import jakarta.validation.constraints.NotBlank;
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import lombok.Data;
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@Data
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public class CreateCommentRequest {
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@NotBlank(message = "Content is required")
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private String content;
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private Long parentCommentId;
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}

‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/dto/CreatePostRequest.java‎

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package org.bounswe.jobboardbackend.forum.dto;
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import jakarta.validation.constraints.NotBlank;
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import lombok.Data;
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import java.util.List;
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@Data
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public class CreatePostRequest {
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@NotBlank(message = "Title is required")
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private String title;
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@NotBlank(message = "Content is required")
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private String content;
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private List<String> tags;
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}

‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/dto/PostResponse.java‎

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package org.bounswe.jobboardbackend.forum.dto;
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import lombok.Builder;
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import lombok.Data;
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import org.bounswe.jobboardbackend.forum.model.ForumPost;
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import java.time.Instant;
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import java.util.List;
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@Data
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@Builder
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public class PostResponse {
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private Long id;
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private String title;
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private String content;
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private Long authorId;
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private String authorUsername;
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private List<String> tags;
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private Instant createdAt;
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private Instant updatedAt;
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private int commentCount;
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public static PostResponse from(ForumPost post) {
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return PostResponse.builder()
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.id(post.getId())
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.title(post.getTitle())
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.content(post.getContent())
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.authorId(post.getAuthor().getId())
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.authorUsername(post.getAuthor().getUsername())
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.tags(post.getTags())
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.createdAt(post.getCreatedAt())
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.updatedAt(post.getUpdatedAt())
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.commentCount(post.getComments() != null ? post.getComments().size() : 0)
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.build();
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}
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}

‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/dto/UpdateCommentRequest.java‎

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package org.bounswe.jobboardbackend.forum.dto;
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import jakarta.validation.constraints.NotBlank;
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import lombok.Data;
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@Data
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public class UpdateCommentRequest {
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@NotBlank(message = "Content is required")
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private String content;
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}

‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/dto/UpdatePostRequest.java‎

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package org.bounswe.jobboardbackend.forum.dto;
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import lombok.Data;
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import java.util.List;
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@Data
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public class UpdatePostRequest {
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private String title;
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private String content;
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private List<String> tags;
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}

‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/model/ForumComment.java‎

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package org.bounswe.jobboardbackend.forum.model;
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import jakarta.persistence.*;
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import lombok.*;
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import org.bounswe.jobboardbackend.auth.model.User;
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import org.hibernate.annotations.CreationTimestamp;
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import org.hibernate.annotations.UpdateTimestamp;
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import java.time.Instant;
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import java.util.ArrayList;
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import java.util.List;
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@Entity
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@Table(name = "forum_comments")
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@Getter
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@Setter
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@NoArgsConstructor
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@AllArgsConstructor
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@Builder
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public class ForumComment {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Long id;
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@Column(nullable = false, columnDefinition = "TEXT")
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private String content;
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@ManyToOne(fetch = FetchType.LAZY, optional = false)
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@JoinColumn(name = "author_id", nullable = false)
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private User author;
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@ManyToOne(fetch = FetchType.LAZY, optional = false)
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@JoinColumn(name = "post_id", nullable = false)
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private ForumPost post;
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@ManyToOne(fetch = FetchType.LAZY)
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@JoinColumn(name = "parent_comment_id")
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private ForumComment parentComment;
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@OneToMany(mappedBy = "comment", cascade = CascadeType.ALL, orphanRemoval = true)
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@Builder.Default
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private List<ForumCommentUpvote> upvotes = new ArrayList<>();
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@OneToMany(mappedBy = "comment", cascade = CascadeType.ALL, orphanRemoval = true)
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@Builder.Default
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private List<ForumCommentDownvote> downvotes = new ArrayList<>();
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@CreationTimestamp
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@Column(nullable = false, updatable = false)
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private Instant createdAt;
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@UpdateTimestamp
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@Column(nullable = false)
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private Instant updatedAt;
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}

‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/model/ForumCommentDownvote.java‎

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package org.bounswe.jobboardbackend.forum.model;
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import jakarta.persistence.*;
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import lombok.*;
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import org.bounswe.jobboardbackend.auth.model.User;
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import org.hibernate.annotations.CreationTimestamp;
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import java.time.Instant;
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@Entity
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@Table(name = "forum_comment_downvotes", uniqueConstraints = {
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@UniqueConstraint(columnNames = { "user_id", "comment_id" })
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})
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@Getter
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@Setter
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@NoArgsConstructor
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@AllArgsConstructor
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@Builder
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public class ForumCommentDownvote {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Long id;
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@ManyToOne(fetch = FetchType.LAZY, optional = false)
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@JoinColumn(name = "user_id", nullable = false)
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private User user;
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@ManyToOne(fetch = FetchType.LAZY, optional = false)
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@JoinColumn(name = "comment_id", nullable = false)
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private ForumComment comment;
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@CreationTimestamp
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@Column(nullable = false, updatable = false)
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private Instant createdAt;
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}

‎apps/jobboard-backend/src/main/java/org/bounswe/jobboardbackend/forum/model/ForumCommentUpvote.java‎

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package org.bounswe.jobboardbackend.forum.model;
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import jakarta.persistence.*;
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import lombok.*;
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import org.bounswe.jobboardbackend.auth.model.User;
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import org.hibernate.annotations.CreationTimestamp;
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import java.time.Instant;
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@Entity
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@Table(name = "forum_comment_upvotes", uniqueConstraints = {
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@UniqueConstraint(columnNames = { "user_id", "comment_id" })
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})
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@Getter
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@Setter
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@NoArgsConstructor
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@AllArgsConstructor
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@Builder
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public class ForumCommentUpvote {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Long id;
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@ManyToOne(fetch = FetchType.LAZY, optional = false)
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@JoinColumn(name = "user_id", nullable = false)
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private User user;
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@ManyToOne(fetch = FetchType.LAZY, optional = false)
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@JoinColumn(name = "comment_id", nullable = false)
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private ForumComment comment;
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@CreationTimestamp
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@Column(nullable = false, updatable = false)
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private Instant createdAt;
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}

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