[#17] refactor: Renaming Dish to Item

- Mockup API의 네이밍에 맞게 Dish라는 명칭을 Item으로 수정

backend/src/main/java/com/team15/sidedish/controller/DishController.java → backend/src/main/java/com/team15/sidedish/controller/ItemController.java

@@ -1,7 +1,7 @@
 package com.team15.sidedish.controller;
 
 import com.team15.sidedish.dto.ItemDTO;
-import com.team15.sidedish.service.DishService;
+import com.team15.sidedish.service.ItemService;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -11,12 +11,12 @@
 import java.util.List;
 
 @RestController
-public class DishController {
-    private final Logger logger = LoggerFactory.getLogger(DishController.class);
-    private final DishService dishService;
+public class ItemController {
+    private final Logger logger = LoggerFactory.getLogger(ItemController.class);
+    private final ItemService itemService;
 
-    public DishController(DishService dishService) {
-        this.dishService = dishService;
+    public ItemController(ItemService itemService) {
+        this.itemService = itemService;
     }
 
     @GetMapping("/dishes")
@@ -28,13 +28,13 @@ public List<ItemDTO> showDishByHash() {
     @GetMapping("/dish/{hash}")
     public ItemDTO showSingleDish(@PathVariable String hash) {
         logger.info("Show single dish by hash");
-        return dishService.showSingleDish(hash);
+        return itemService.showSingleDish(hash);
 
     }
 
     @GetMapping("/{section}")
     public List<ItemDTO> showDishsBySection(@PathVariable String section){
-        return dishService.showDishsBySection(section);
+        return itemService.showDishsBySection(section);
     }
 
 }

backend/src/main/java/com/team15/sidedish/domain/DishRepository.java → backend/src/main/java/com/team15/sidedish/domain/ItemRepository.java

@@ -7,7 +7,7 @@
 import java.util.List;
 import java.util.Optional;
 
-public interface DishRepository extends CrudRepository<ItemDTO, String> {
+public interface ItemRepository extends CrudRepository<ItemDTO, String> {
 
     @Query("SELECT di.`hash` AS `detail_hash`, di.`top_image` AS `image`, di.`title` AS `alt`, de.`delivery_type`, di.`title`, di.`description`, di.`n_price`, di.`s_price`, e.`badge` from dish di JOIN delivery de on di.`hash` = de.`dish_hash` LEFT OUTER JOIN `event` e on e.`dish_hash` = di.`hash` where e.`dish_hash`=:hash")
     @Override

backend/src/main/java/com/team15/sidedish/service/ItemService.java

@@ -0,0 +1,28 @@
+package com.team15.sidedish.service;
+
+import com.team15.sidedish.domain.ItemRepository;
+import com.team15.sidedish.dto.ItemDTO;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class ItemService {
+    private final ItemRepository itemRepository;
+
+    public ItemService(ItemRepository itemRepository) {
+        this.itemRepository = itemRepository;
+    }
+
+    public List<ItemDTO> showDishes() {
+        return itemRepository.findAll();
+    }
+
+    public ItemDTO showSingleDish(String hash) {
+        return itemRepository.findById(hash).orElseThrow(IllegalArgumentException::new);
+    }
+
+    public List<ItemDTO> showDishsBySection(String section) {
+        return itemRepository.findAllBySection(section);
+    }
+}