Started working on group service

src/main/java/ntnu/idatt2016/v233/SmartMat/entity/Groups.java → src/main/java/ntnu/idatt2016/v233/SmartMat/entity/Group.java

@@ -12,9 +12,9 @@ import lombok.NoArgsConstructor;
 @NoArgsConstructor
 @AllArgsConstructor
 @Builder
-@Entity(name = "groups")
+@Entity(name = "group")
 @Data
-public class Groups {
+public class Group {
 
     @Id
     @Column(name = "group_id")

src/main/java/ntnu/idatt2016/v233/SmartMat/repository/GroupRepository.java

-package ntnu.idatt2016.v233.SmartMat.repository;
-
-import org.springframework.data.jpa.repository.JpaRepository;
-
-import ntnu.idatt2016.v233.SmartMat.entity.Groups;
-
-/**
- * Repository for groups
- * 
- * @author Stian Lyng
- * @version 1.0
- * @since 19.04.2023
- */
-public interface GroupRepository extends JpaRepository<Groups, Long> {
-
-}

src/main/java/ntnu/idatt2016/v233/SmartMat/repository/group/GroupRepository.java

+package ntnu.idatt2016.v233.SmartMat.repository.group;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import ntnu.idatt2016.v233.SmartMat.entity.Group;
+
+import java.util.Optional;
+
+/**
+ * Repository for groups
+ * 
+ * @author Stian Lyng, Anders Austlid
+ * @version 1.1
+ * @since 20.04.2023
+ */
+public interface GroupRepository extends JpaRepository<Group, Long> {
+    /**
+     * Finds a group by its name
+     * @param groupName the name of the group to look up
+     * @return an optional containing the group if it exists
+     */
+    Optional<Group> findByGroupName(String groupName);
+
+    /**
+     * Finds a group by its id
+     * @param groupId the id of the group to look up
+     * @return an optional containing the group if it exists
+     */
+    Optional<Group> findByGroupId(long groupId);
+}

src/main/java/ntnu/idatt2016/v233/SmartMat/service/GroupService.java

+package ntnu.idatt2016.v233.SmartMat.service;
+
+import lombok.AllArgsConstructor;
+import ntnu.idatt2016.v233.SmartMat.entity.Group;
+import ntnu.idatt2016.v233.SmartMat.repository.group.GroupRepository;
+import org.springframework.stereotype.Service;
+
+import java.util.Optional;
+
+/**
+ * Service for groups
+ *
+ * @author Anders Austlid
+ * @version 1.0
+ * @since 20.04.2023
+ */
+@AllArgsConstructor
+@Service
+public class GroupService {
+
+    private final GroupRepository groupRepository;
+
+    Optional<Group> 
+}