🐛 Fix Article.kt and ArticleEntity.kt

.env

@@ -0,0 +1 @@
+JWT_SECRET_KEY=3/p/xxA8WqVucMcHq1vbUFwnZLcFdh84VVdK0tGFtxM=

.gitignore

@@ -5,6 +5,9 @@ build/
 !**/src/main/**/build/
 !**/src/test/**/build/
 
+### ./env ###
+JWT_SECRET_KEY=your_secret_key
+
 ### STS ###
 .apt_generated
 .classpath

src/main/kotlin/com/toyProject7/karrot/article/controller/Article.kt

@@ -7,7 +7,7 @@ import java.time.Instant
 data class Article(
     val id: String,
     val seller: User,
-    val buyer: User,
+    val buyer: User?,
     val title: String,
     val content: String,
     val price: Int,
@@ -20,7 +20,7 @@ data class Article(
             return Article(
                 id = entity.id!!,
                 seller = User.fromEntity(entity.seller),
-                buyer = User.fromEntity(entity.buyer),
+                buyer = entity.buyer?.let { User.fromEntity(it) },
                 title = entity.title,
                 content = entity.content,
                 price = entity.price,

src/main/kotlin/com/toyProject7/karrot/article/controller/ArticleController.kt

@@ -13,23 +13,23 @@ class ArticleController(
 ) {
     @GetMapping("/api/mypage/likes")
     fun getLikedArticles(
-        @AuthUser user: User
+        @AuthUser user: User,
     ): ResponseEntity<LikedArticlesResponse> {
         val articles = articleService.listLikedArticles(user.userId)
         return ResponseEntity.ok(articles)
     }
 
     @GetMapping("/api/mypage/sells")
     fun getSellingAndSoldArticles(
-        @AuthUser user: User
+        @AuthUser user: User,
     ): ResponseEntity<SellingAndSoldArticlesResponse> {
         val articles = articleService.listSellingAndSoldArticles(user.userId)
         return ResponseEntity.ok(articles)
     }
 
     @GetMapping("/api/mypage/buys")
     fun getBoughtArticles(
-        @AuthUser user: User
+        @AuthUser user: User,
     ): ResponseEntity<BoughtArticlesResponse> {
         val articles = articleService.listBoughtArticles(user.userId)
         return ResponseEntity.ok(articles)

src/main/kotlin/com/toyProject7/karrot/article/persistence/ArticleEntity.kt

@@ -13,7 +13,7 @@ import jakarta.persistence.OneToOne
 import java.time.Instant
 
 @Entity(name = "articles")
-class ArticleEntity (
+class ArticleEntity(
     @Id
     @GeneratedValue(strategy = GenerationType.UUID)
     val id: String? = null,
@@ -22,7 +22,7 @@ class ArticleEntity (
     var seller: UserEntity,
     @OneToOne
     @JoinColumn(name = "buyer_id")
-    var buyer: UserEntity,
+    var buyer: UserEntity? = null,
     @Column(columnDefinition = "TEXT")
     var title: String,
     @Column(columnDefinition = "TEXT")
@@ -32,7 +32,7 @@ class ArticleEntity (
     @Column(name = "is_selled")
     var isSelled: Boolean,
     @OneToMany(mappedBy = "article")
-    var articleLikes: List<ArticleLikeEntity> = emptyList(),
+    var articleLikes: MutableList<ArticleLikeEntity> = mutableListOf(),
     @Column(name = "created_at", nullable = false)
     var createdAt: Instant,
 )

src/main/kotlin/com/toyProject7/karrot/article/persistence/ArticleLikeEntity.kt

@@ -11,7 +11,7 @@ import jakarta.persistence.ManyToOne
 import java.time.Instant
 
 @Entity(name = "article_likes")
-class ArticleLikeEntity (
+class ArticleLikeEntity(
     @Id
     @GeneratedValue(strategy = GenerationType.UUID)
     val id: String? = null,

src/main/kotlin/com/toyProject7/karrot/article/persistence/ArticleLikeRepository.kt

@@ -2,7 +2,6 @@ package com.toyProject7.karrot.article.persistence
 
 import org.springframework.data.jpa.repository.JpaRepository
 
-interface ArticleLikeRepository: JpaRepository<ArticleLikeEntity, String> {
+interface ArticleLikeRepository : JpaRepository<ArticleLikeEntity, String> {
     fun findAllByUserId(userId: String): List<ArticleLikeEntity>
 }
-

src/main/kotlin/com/toyProject7/karrot/article/persistence/ArticleRepository.kt

@@ -2,7 +2,7 @@ package com.toyProject7.karrot.article.persistence
 
 import org.springframework.data.jpa.repository.JpaRepository
 
-interface ArticleRepository: JpaRepository<ArticleEntity, String> {
+interface ArticleRepository : JpaRepository<ArticleEntity, String> {
     fun findAllByBuyerId(userId: String): List<ArticleEntity>
 
     fun findAllBySellerId(userId: String): List<ArticleEntity>

src/main/kotlin/com/toyProject7/karrot/article/service/ArticleService.kt

@@ -22,15 +22,17 @@ class ArticleService(
 
     fun listSellingAndSoldArticles(userId: String): SellingAndSoldArticlesResponse {
         val articles = articleRepository.findAllBySellerId(userId)
-        val sellingArticles = articles.filter { !it.isSelled }
-            .map { Article.fromEntity(it) }
+        val sellingArticles =
+            articles.filter { !it.isSelled }
+                .map { Article.fromEntity(it) }
 
-        val soldArticles = articles.filter { it.isSelled }
-            .map { Article.fromEntity(it) }
+        val soldArticles =
+            articles.filter { it.isSelled }
+                .map { Article.fromEntity(it) }
 
         return SellingAndSoldArticlesResponse(
             sellingArticles,
-            soldArticles
+            soldArticles,
         )
     }