购物车的删除单个，清空购物车

liuxiaobu666 · Jul 24, 2022 · f6c6593 · f6c6593
1 parent 5360e35
commit f6c6593
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Showing 3 changed files with 68 additions and 1 deletion.
diff --git a/reggie_server/src/main/java/com/reggie/controller/user/ShoppingCartController.java b/reggie_server/src/main/java/com/reggie/controller/user/ShoppingCartController.java
@@ -50,4 +50,32 @@ public R<List<ShoppingCart>> list() {
         List<ShoppingCart> shoppingCarts = shoppingCartService.list();
         return R.success(shoppingCarts);
     }
+
+    /**
+     * 清空购物车
+     *
+     * @return success
+     */
+    @DeleteMapping("/clean")
+    @ApiOperation("清空购物车")
+    public R<String> clean() {
+        log.info("清空购物车");
+        shoppingCartService.clean();
+        return R.success("清空完成");
+    }
+
+
+    /**
+     * 删除购物车某个商品
+     *
+     * @param shoppingCartDTO 菜名id,套餐id，口味
+     * @return success
+     */
+    @PostMapping("/sub")
+    @ApiOperation("删除购物车某个商品")
+    public R<String> sub(@RequestBody ShoppingCartDTO shoppingCartDTO) {
+        log.info("删除购物车某个商品:{}", shoppingCartDTO);
+        shoppingCartService.sub(shoppingCartDTO);
+        return R.success("删除成功");
+    }
 }
diff --git a/reggie_server/src/main/java/com/reggie/service/ShoppingCartService.java b/reggie_server/src/main/java/com/reggie/service/ShoppingCartService.java
@@ -15,4 +15,10 @@ public interface ShoppingCartService {
 
     //查询购物车
     List<ShoppingCart> list();
+
+    //清空购物车
+    void clean();
+
+    //删除购物车某个商品
+    void sub(ShoppingCartDTO shoppingCartDTO);
 }
diff --git a/reggie_server/src/main/java/com/reggie/service/impl/ShoppingCartServiceImpl.java b/reggie_server/src/main/java/com/reggie/service/impl/ShoppingCartServiceImpl.java
@@ -34,7 +34,7 @@ public class ShoppingCartServiceImpl implements ShoppingCartService {
     public void add(ShoppingCartDTO shoppingCartDTO) {
         //拷贝属性值
         ShoppingCart shoppingCart = new ShoppingCart();
-        BeanUtils.copyProperties(shoppingCartDTO,shoppingCart);
+        BeanUtils.copyProperties(shoppingCartDTO, shoppingCart);
 
         //设置当前用户的id
         shoppingCart.setUserId(BaseContext.getCurrentId());
@@ -86,4 +86,37 @@ public List<ShoppingCart> list() {
                 .build();
         return shoppingCartMapper.list(shoppingCart);
     }
+
+    /**
+     * 清空购物车
+     */
+    public void clean() {
+        //根据用户id删除购物车
+        shoppingCartMapper.deleteByUserId(BaseContext.getCurrentId());
+    }
+
+    /**
+     * @param shoppingCartDTO 菜名id,套餐id，口味
+     */
+    public void sub(ShoppingCartDTO shoppingCartDTO) {
+        //拷贝购物车数据
+        ShoppingCart shoppingCart = new ShoppingCart();
+        BeanUtils.copyProperties(shoppingCartDTO, shoppingCart);
+        shoppingCart.setUserId(BaseContext.getCurrentId());
+
+        //查询需要删除的数据
+        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
+        if (list != null && list.size() > 0) {
+            //获取当前套餐/菜品的数据
+            shoppingCart = list.get(0);
+            //如果是最后一份就删除整个
+            if (shoppingCart.getNumber() == 1) {
+                shoppingCartMapper.deleteById(shoppingCart.getId());
+            } else {
+                //当前商品在购物车中的份数不为1，修改份数即可
+                shoppingCart.setNumber(shoppingCart.getNumber() - 1);
+                shoppingCartMapper.updateNumberById(shoppingCart);
+            }
+        }
+    }
 }