删除分类

ch-admin-api/src/main/java/com/wwdz/ch/admin/controller/CategoryController.java

@@ -21,6 +21,7 @@ import org.apache.shiro.authz.annotation.RequiresPermissions;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.util.CollectionUtils;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -150,20 +151,9 @@ public class CategoryController {
 	@PostMapping("/delete")
 	public Object delete(@RequestBody GoodsCategoryObsolete category) {
 		logger.info("【请求开始】操作人:[" + AuthSupport.userName()+ "] 商场管理->类目管理->删除,请求参数:{}", JSONObject.toJSONString(category));
-
-		Integer id = category.getId();
-		if (id == null) {
-			return ResponseUtil.badArgument();
-		}
-		categoryManager.deleteById(id);
-
-		Category pCat = new Category();
-		pCat.setId(category.getPid());
-		pCat.setIsLeaf(true);
-		categoryManager.updateById(pCat);
-
+		Object result = categoryService.delete(category);
 		logger.info("【请求结束】商场管理->类目管理->删除:响应结果:{}", "成功!");
-		return ResponseUtil.ok();
+		return result;
 	}
 
 	@RequiresPermissions("admin:category:list")

ch-admin-api/src/main/java/com/wwdz/ch/admin/impl/CategoryServiceImpl.java

@@ -3,8 +3,10 @@ package com.wwdz.ch.admin.impl;
 import com.wwdz.ch.admin.controller.CategoryController;
 import com.wwdz.ch.admin.entity.vo.CategoryVo;
 import com.wwdz.ch.admin.service.CategoryService;
+import com.wwdz.ch.core.type.Result;
 import com.wwdz.ch.core.util.ResponseUtil;
 import com.wwdz.ch.db.domain.Category;
+import com.wwdz.ch.db.domain.GoodsCategoryObsolete;
 import com.wwdz.ch.db.domain.Item;
 import com.wwdz.ch.db.manager.CategoryManager;
 import com.wwdz.ch.db.manager.ItemManager;
@@ -14,6 +16,8 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.springframework.util.CollectionUtils;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -101,6 +105,30 @@ public class CategoryServiceImpl implements CategoryService {
         categoryManager.add(category);
     }
 
+    @Override
+    public Object delete(GoodsCategoryObsolete category) {
+        Integer id = category.getId();
+        if (id == null) {
+            return ResponseUtil.badArgument();
+        }
+        //检验该分类下有没有商品，有商品的话不能删除
+        long count = itemManager.countByCid(id);
+        if (count > 0) {
+            return Result.failed("该分类下有归属商品，不能删除");
+        }
+        categoryManager.deleteById(id);
+
+        //查询该父节点下还有没有其它的节点，没有的话该父节点就是叶子节点
+        List<Category> categoryList = categoryManager.queryByPid(category.getPid());
+        if (CollectionUtils.isEmpty(categoryList)) {
+            Category pCat = new Category();
+            pCat.setId(category.getPid());
+            pCat.setIsLeaf(true);
+            categoryManager.updateById(pCat);
+        }
+        return Result.success();
+    }
+
     @Override
     public int updateById(Category category) {
         return 0;

ch-admin-api/src/main/java/com/wwdz/ch/admin/service/CategoryService.java

@@ -2,6 +2,7 @@ package com.wwdz.ch.admin.service;
 
 import com.wwdz.ch.admin.entity.vo.CategoryVo;
 import com.wwdz.ch.db.domain.Category;
+import com.wwdz.ch.db.domain.GoodsCategoryObsolete;
 import org.springframework.web.bind.annotation.RequestBody;
 
 import java.util.List;
@@ -14,6 +15,8 @@ public interface CategoryService {
 
     void create(CategoryVo categoryVo);
 
+    Object delete(GoodsCategoryObsolete category);
+
     List<Category> queryByLevel(Integer level, Integer offset, Integer limit);
 
     List<Category> queryByPid(Integer pid);

ch-dao/src/main/java/com/wwdz/ch/db/manager/ItemManager.java

@@ -23,4 +23,6 @@ public interface ItemManager {
     void cancelStandardItem(Long id);
 
     Item findStandard(Integer cid);
+
+    long countByCid(Integer cid);
 }

ch-dao/src/main/java/com/wwdz/ch/db/manager/impl/ItemManagerImpl.java

@@ -106,4 +106,13 @@ public class ItemManagerImpl implements ItemManager {
         criteria.andIsStdEqualTo(true);
         return itemMapper.selectOneByExampleWithBLOBs(example);
     }
+
+    @Override
+    public long countByCid(Integer cid) {
+        ItemExample example = new ItemExample();
+        ItemExample.Criteria criteria = example.createCriteria();
+        criteria.andCidEqualTo(cid);
+        criteria.andIsDeletedEqualTo(false);
+        return itemMapper.countByExample(example);
+    }
 }