后台系统关联属性获取可关联属性

book-product/src/main/java/com/bookstore/bookmall/product/controller/AttrGroupController.java

@@ -36,6 +36,7 @@ public class AttrGroupController {
     @Autowired
     private AttrService attrService;
 
+    //删除关联属性
     ///product/attrgroup/attr/relation/delete
     @PostMapping("/attr/relation/delete")
     //自定义数据必须加@RequestBody
@@ -44,7 +45,7 @@ public class AttrGroupController {
         return R.ok();
     }
 
-
+    //查找有关联的属性
     ///product/attrgroup/{attrgroupId}/attr/relation
     @GetMapping("/{attrgroupId}/attr/relation")
     private R attrRelation(@PathVariable("attrgroupId") Long attrgroupId) {
@@ -52,6 +53,14 @@ public class AttrGroupController {
         return R.ok().put("data",entities);
     }
 
+    //查找无关联属性
+    //product/attrgroup/{attrgroupId}/noattr/
+    @GetMapping("/{attrgroupId}/noattr/relation")
+    private R attrNoRelation(@PathVariable("attrgroupId") Long attrgroupId,
+                             @RequestParam Map<String, Object> params /*这个是分页参数*/) {
+        PageUtils page =  attrService.getNoRelationAttr(params, attrgroupId);
+        return R.ok().put("page",page);
+    }
 
     /**
      * 列表

book-product/src/main/java/com/bookstore/bookmall/product/service/AttrService.java

@@ -29,6 +29,9 @@ public interface AttrService extends IService<AttrEntity> {
     void updateAttr(AttrVo attrVo);
 
     List<AttrEntity> getRelationAttr(Long attrgroupId);
+
+
+    PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId);
 }
 
 

book-product/src/main/java/com/bookstore/bookmall/product/service/impl/AttrServiceImpl.java

@@ -201,6 +201,10 @@ public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements
             return attr.getAttrId();
         }).collect(Collectors.toList());
 
+        if (attrIds==null || attrIds.size()==0) {
+            return null;
+        }
+
         //查找返回同一组属性
         Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
 
@@ -208,4 +212,52 @@ public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements
     }
 
 
+    /*
+     * @Description: 获取当前分组没有关联的所有属性
+     * @param:
+     * @return:
+     * @Author:
+     * @date:
+     */
+    @Override
+    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
+        //当前分组只能获取自己所属的分类里面所有属性
+        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
+        //获取分类id
+        Long catelogId = attrGroupEntity.getCatelogId();
+        //筛选出其他分组
+        List<AttrGroupEntity> groupEntities = attrGroupDao.selectList(
+                new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId).ne("attr_group_id", attrgroupId));
+        List<Long> collect = groupEntities.stream().map((entity) -> {
+            return entity.getAttrGroupId();
+        }).collect(Collectors.toList());
+        //这些分组的属性
+        List<AttrAttrgroupRelationEntity> relationEntities = RelationDao.selectList(
+                new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
+        List<Long> attrIds = relationEntities.stream().map((entity) -> {
+            return entity.getAttrId();
+        }).collect(Collectors.toList());
+
+        //从当前分类的所有属性中移除这些属性
+        //条件
+        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq(
+                "attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() );
+        //关键字查找
+        String key = (String) params.get("key");
+        if (!StringUtils.isNullOrEmpty(key)) {
+            queryWrapper.and((wrapper)->{
+                wrapper.eq("attr_id", key).or().like("attr_name", key);
+            });
+        }
+        if (attrIds !=null && attrIds.size() > 0) {
+            queryWrapper.notIn("attr_id", attrIds);
+        }
+
+        //分页查询
+        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), queryWrapper);
+        PageUtils pageUtils = new PageUtils(page);
+        return pageUtils;
+    }
+
+
 }