Exclude gradle dir from git track & Add ResourceGroupImage table

.gitignore

@@ -34,3 +34,4 @@ out/
 /.nb-gradle/
 
 application.yml
+/.gradle

src/main/java/DGU_AI_LAB/admin_be/domain/resourceGroupImages/entity/ResourceGroupImage.java

@@ -0,0 +1,38 @@
+package DGU_AI_LAB.admin_be.domain.resourceGroupImages.entity;
+
+import DGU_AI_LAB.admin_be.domain.containerImage.entity.ContainerImage;
+import DGU_AI_LAB.admin_be.domain.resourceGroups.entity.ResourceGroup;
+import DGU_AI_LAB.admin_be.global.common.BaseTimeEntity;
+import jakarta.persistence.*;
+import lombok.*;
+
+@Entity
+@Table(name = "resource_group_images")
+@Access(AccessType.FIELD)
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+@Builder
+@EqualsAndHashCode(of = "id")
+public class ResourceGroupImage extends BaseTimeEntity {
+
+    @EmbeddedId
+    private ResourceGroupImageId id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @MapsId("rsgroupId")
+    @JoinColumn(name = "rsgroup_id", nullable = false)
+    private ResourceGroup resourceGroup;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @MapsId("imageId")
+    @JoinColumn(name = "image_id", nullable = false)
+    private ContainerImage containerImage;
+
+    @PrePersist
+    void onCreate() {
+        if (id == null && resourceGroup != null && containerImage != null) {
+            id = new ResourceGroupImageId(resourceGroup.getRsgroupId(), containerImage.getImageId());
+        }
+    }
+}

src/main/java/DGU_AI_LAB/admin_be/domain/resourceGroupImages/entity/ResourceGroupImageId.java

@@ -0,0 +1,24 @@
+package DGU_AI_LAB.admin_be.domain.resourceGroupImages.entity;
+
+import jakarta.persistence.Access;
+import jakarta.persistence.AccessType;
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import lombok.*;
+
+import java.io.Serializable;
+
+@Embeddable
+@Access(AccessType.FIELD)
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+@EqualsAndHashCode
+public class ResourceGroupImageId implements Serializable {
+
+    @Column(name = "rsgroup_id")
+    private Integer rsgroupId;
+
+    @Column(name = "image_id")
+    private Long imageId;
+}

src/main/java/DGU_AI_LAB/admin_be/domain/resourceGroupImages/repository/ResourceGroupImageRepository.java

@@ -0,0 +1,20 @@
+package DGU_AI_LAB.admin_be.domain.resourceGroupImages.repository;
+
+import DGU_AI_LAB.admin_be.domain.resourceGroupImages.entity.ResourceGroupImage;
+import DGU_AI_LAB.admin_be.domain.resourceGroupImages.entity.ResourceGroupImageId;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface ResourceGroupImageRepository extends JpaRepository<ResourceGroupImage, ResourceGroupImageId> {
+
+    @Query("SELECT rgi FROM ResourceGroupImage rgi WHERE rgi.resourceGroup.rsgroupId = :rsgroupId")
+    List<ResourceGroupImage> findByResourceGroupId(@Param("rsgroupId") Integer rsgroupId);
+
+    @Query("SELECT rgi FROM ResourceGroupImage rgi WHERE rgi.containerImage.imageId = :imageId")
+    List<ResourceGroupImage> findByContainerImageId(@Param("imageId") Long imageId);
+}