【Django REST framework电商项目笔记】第03章 数据库model设计（下）

migrations原理及表生成

前提: 将我们的 app 都放入了 settings 列表中
此时运行 migrations ，我们会报错。future 模块找不到之类。
因为我们拷贝的源码中没有安装依赖包

pip install git+git://github.com/sshwsfc/xadmin.git@django2
因为使用的django2.0.1版本

所以需要对所有的外键关系加上删除时的操作，这里为了方便统一
将删除时操作，设置为级联删除。

在setting中 goods 与 goods.apps.GoodsConfig是一样的。

python manage.py makemigrations    #生成每次数据库变动的脚本
python manage.py migrate	  #生成数据表

注意：不再生成auth user表，而是生成userProfile表。
而admin只会去找auth user就会报错，此时可以先注释掉 admin 这个app和相应 url

xadmin后台管理配置

xadmin 文件配置显示字段
每个 app 配置一个 adminx.py 文件

goods adminx 文件

# encoding: utf-8
__author__ = 'Evan'

import xadmin
from .models import Goods, GoodsCategory, GoodsImage, GoodsCategoryBrand, Banner, HotSearchWords
from .models import IndexAd


class GoodsAdmin(object):
    list_display = ["name", "click_num", "sold_num", "fav_num", "goods_num", "market_price",
                    "shop_price", "goods_brief", "goods_desc", "is_new", "is_hot", "add_time"]
    search_fields = ['name', ]
    list_editable = ["is_hot", ]
    list_filter = ["name", "click_num", "sold_num", "fav_num", "goods_num", "market_price",
                   "shop_price", "is_new", "is_hot", "add_time", "category__name"]
    style_fields = {"goods_desc": "ueditor"}

    class GoodsImagesInline(object):
        model = GoodsImage
        exclude = ["add_time"]
        extra = 1
        style = 'tab'

    inlines = [GoodsImagesInline]


class GoodsCategoryAdmin(object):
    list_display = ["name", "category_type", "parent_category", "add_time"]
    list_filter = ["category_type", "parent_category", "name"]
    search_fields = ['name', ]


class GoodsBrandAdmin(object):
    list_display = ["category", "image", "name", "desc"]

    def get_context(self):
        context = super(GoodsBrandAdmin, self).get_context()
        if 'form' in context:
            context['form'].fields['category'].queryset = GoodsCategory.objects.filter(category_type=1)
        return context


class BannerGoodsAdmin(object):
    list_display = ["goods", "image", "index"]


class HotSearchAdmin(object):
    list_display = ["keywords", "index", "add_time"]


class IndexAdAdmin(object):
    list_display = ["category", "goods"]


xadmin.site.register(Goods, GoodsAdmin)
xadmin.site.register(GoodsCategory, GoodsCategoryAdmin)
xadmin.site.register(Banner, BannerGoodsAdmin)
xadmin.site.register(GoodsCategoryBrand, GoodsBrandAdmin)

xadmin.site.register(HotSearchWords, HotSearchAdmin)
xadmin.site.register(IndexAd, IndexAdAdmin)

trade adminx 文件

# -*- coding: utf-8 -*-
__author__ = 'Evan'

import xadmin
from .models import ShoppingCart, OrderInfo, OrderGoods

class ShoppingCartAdmin(object):
    list_display = ["user", "goods", "nums", ]


class OrderInfoAdmin(object):
    list_display = ["user", "order_sn",  "trade_no", "pay_status", "post_script", 
                    "order_mount", "pay_time", "add_time"]

    class OrderGoodsInline(object):
        model = OrderGoods
        exclude = ['add_time', ]
        extra = 1
        style = 'tab'

    inlines = [OrderGoodsInline, ]


xadmin.site.register(ShoppingCart, ShoppingCartAdmin)
xadmin.site.register(OrderInfo, OrderInfoAdmin)

user_operation adminx 文件

# coding: utf-8
__author__ = 'Evan'

import xadmin
from .models import UserAddress, UserFav, UserLeavingMessage


class UserFavAdmin(object):
    list_display = ['user', 'goods', 'add_time']


class UserLeavingMessageAdmin(object):
    list_display = ['user', 'message_type', 'message', 'add_time']


class UserAddressAdmin(object):
    list_display = ['signer_name', 'signer_mobile', 'district', 'address']


xadmin.site.register(UserFav, UserFavAdmin)
xadmin.site.register(UserAddress, UserAddressAdmin)
xadmin.site.register(UserLeavingMessage, UserLeavingMessageAdmin)

user adminx 文件

# coding: utf-8
__author__ = 'Evan'

import xadmin
from xadmin import views
from .models import VerifyCode


class BaseSetting(object):
    enable_themes = True
    use_bootswatch = True


class GlobalSettings(object):
    list_title = "vue_shop"
    site_footer = "[email protected]"
    # menu_style = "accordion"


class VerifyCodeAdmin(object):
    list_display = ['code', 'mobile', 'add_time']


xadmin.site.register(VerifyCode, VerifyCodeAdmin)
xadmin.site.register(views.BaseAdminView, BaseSetting)
xadmin.site.register(views.CommAdminView, GlobalSettings)

xadmin配置url

path('xadmin/', xadmin.site.urls),
createsuperuser

pip install xlwt

修改setting中app名称为补全名称

    'users.apps.UsersConfig',
    'goods.apps.GoodsConfig',
    'trade.apps.TradeConfig',
    'user_operation.apps.UserOperationConfig',

然后在apps中添加

from django.apps import AppConfig

class UsersConfig(AppConfig):
    name = 'users'
    verbose_name = "用户管理"

配置富文本:

    # 富文本相关url
    path('ueditor/', include('DjangoUeditor.urls')),

导入商品类别数据

db_tools目录中存放有data和导入的脚本,
图片复制进media
运行两个脚本
为了让大家进行更方便的修改保持字段一致

知识点:单独使用django的model

访问图片settings设置

#设置js/css/image等静态文件目录
STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'static')
]
#设置上传文件，图片访问路径
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')

处理图片显示的url

    # 处理图片显示的url,使用Django自带serve,
    # 传入参数告诉它去哪个路径找，我们有配置好的路径MEDIAROOT
    url(r'media/(?P<path>.*)$', serve, {"document_root": MEDIA_ROOT}),