Django 前后端分离实战项目 生鲜超市（六）之商品类别数据

商品类别数据

前言

代码已上传至github：https://github.com/kalipoison/fresh-market

此项目仅学习用途

要求

Package Version

---

certifi 2020.4.5.1
chardet 3.0.4
coreapi 2.3.1
coreschema 0.0.4
Django 1.11.3
django-crispy-forms 1.6.1
django-filter 1.0.4
django-formtools 2.0
django-guardian 1.4.9
django-reversion 2.0.9
djangorestframework 3.6.3
future 0.16.0
httplib2 0.9.2
idna 2.9
itypes 1.2.0
Jinja2 2.11.2
Markdown 2.6.8
MarkupSafe 1.1.1
mysqlclient 1.3.10
olefile 0.46
Pillow 4.2.1
pip 20.0.2
pytz 2019.3
requests 2.23.0
setuptools 46.1.3
six 1.10.0
uritemplate 3.0.1
urllib3 1.25.9
wheel 0.34.2
XlsxWriter 0.9.8
xlwt 1.2.0

流程

更改goods下serializers.py

serializers.py

from rest_framework import serializers
from django.db.models import Q

from goods.models import Goods, GoodsCategory

class CategorySerializer3(serializers.ModelSerializer):
    class Meta:
        model = GoodsCategory
        fields = "__all__"


class CategorySerializer2(serializers.ModelSerializer):
    sub_cat = CategorySerializer3(many=True)
    class Meta:
        model = GoodsCategory
        fields = "__all__"


class CategorySerializer(serializers.ModelSerializer):
    sub_cat = CategorySerializer2(many=True)
    class Meta:
        model = GoodsCategory
        fields = "__all__"

class GoodsSerializer(serializers.ModelSerializer):
    category = CategorySerializer()
    class Meta:
        model = Goods
        fields = "__all__"

class GoodCategorySerializer(serializers.ModelSerializer):
    '''
    商品类别序列化
    '''
    class Meta:
        model = Goods
        fields = "__all__"

在Mxshop下url.py修改如下

url.py

from django.conf.urls import url,include
# from django.contrib import admin
import xadmin
from Mxshop.settings import MEDIA_ROOT
from django.views.static import serve
from rest_framework.documentation import include_docs_urls
from rest_framework.routers import DefaultRouter

from goods.views import GoodsListViewSet,CategoryViewset

router = DefaultRouter()

#配置goods的url
router.register(r'goods', GoodsListViewSet, base_name="goods")

#配置category的url
router.register(r'categorys', CategoryViewset, base_name="categorys")

goods_list = GoodsListViewSet.as_view({
    'get': 'list',
})

urlpatterns = [
    url(r'^xadmin/', xadmin.site.urls),
    url(r'^media/(?P.*)$', serve, {"document_root": MEDIA_ROOT}),

    url(r'^', include(router.urls)),

    url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')),

    url(r'docs/',include_docs_urls(title='GOHB生鲜'))
]

修改goods文件夹下views.py

views.py

from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework import mixins
from rest_framework import generics
from rest_framework import filters
from rest_framework.pagination import PageNumberPagination
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework import viewsets

from .models import Goods,GoodsCategory
from .serializers import GoodsSerializer,CategorySerializer
from .filters import GoodsFilter
# Create your views here.

class GoodsPagination(PageNumberPagination):
    page_size = 12
    page_size_query_param = 'page_size'
    page_query_param = "page"
    max_page_size = 100

class GoodsListViewSet(mixins.ListModelMixin, viewsets.GenericViewSet):
    """
    商品列表页, 分页， 搜索， 过滤， 排序
    """
    queryset = Goods.objects.all()
    serializer_class = GoodsSerializer
    pagination_class = GoodsPagination
    filter_backends = (DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter)
    filter_class = GoodsFilter
    search_fields = ('name', 'goods_brief', 'goods_desc')
    ordering_fields = ('sold_num', 'shop_price')


class CategoryViewset(mixins.ListModelMixin, mixins.RetrieveModelMixin, viewsets.GenericViewSet):
    """
    list:
        商品分类列表数据
    """
    queryset = GoodsCategory.objects.filter(category_type=1)
    serializer_class = CategorySerializer

这样后台的商品类别数据就成功显示了。