谷粒商城day58-商品服务-API-新增商品-获取分类关联的品牌+获取分类下所有分组以及属性

1.获取分类关联的品牌界面效果

选择分类带出分类相关品牌

2.获取分类关联的品牌相关代码

controller层代码

    @GetMapping("/brands/list")
    public R relationBrandsList(@RequestParam(value = "catId",required = true)Long catId){
        List<BrandEntity> vos = categoryBrandRelationService.getBrandsByCatId(catId);

        List<BrandVo> collect = vos.stream().map(item -> {
            BrandVo brandVo = new BrandVo();
            brandVo.setBrandId(item.getBrandId());
            brandVo.setBrandName(item.getName());

            return brandVo;
        }).collect(Collectors.toList());

        return R.ok().put("data",collect);
    }

service层代码

    @Override
    public List<BrandEntity> getBrandsByCatId(Long catId) {

        List<CategoryBrandRelationEntity> catelogId = relationDao.selectList(new QueryWrapper<CategoryBrandRelationEntity>().eq("catelog_id", catId));
        List<BrandEntity> collect = catelogId.stream().map(item -> {
            Long brandId = item.getBrandId();
            BrandEntity byId = brandService.getById(brandId);
            return byId;
        }).collect(Collectors.toList());
        return collect;
    }

3.获取分类下所有分组以及属性界面效果

点击下一步时，显示出相关分类相关的属性分组及其下属性

4.获取分类下所有分组以及属性相关代码

controller层代码

    ///product/attrgroup/{catelogId}/withattr
    @GetMapping("/{catelogId}/withattr")
    public R getAttrGroupWithAttrs(@PathVariable("catelogId")Long catelogId){

        //1、查出当前分类下的所有属性分组，
        //2、查出每个属性分组的所有属性
       List<AttrGroupWithAttrsVo> vos =  attrGroupService.getAttrGroupWithAttrsByCatelogId(catelogId);
       return R.ok().put("data",vos);
    }

service层代码

    /**
     * 根据分类id查出所有的分组以及这些组里面的属性
     * @param catelogId
     * @return
     */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
            //com.atguigu.gulimall.product.vo
        //1、查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));

        //2、查询所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
            AttrGroupWithAttrsVo attrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group,attrsVo);
            List<AttrEntity> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId());
            attrsVo.setAttrs(attrs);
            return attrsVo;
        }).collect(Collectors.toList());

        return collect;
    }