（生鲜项目）04. 导入数据

# 独立使用django的model模块
import sys,os

# from users.models import UserProfile
# 如果在配置DJANGO_SETTINGS_MODULE之前导入了与django有关的模块,会报错,见下面的截图:
# "You must either define the environment variable DJANGO_SETTINGS_MODULE"

# 把项目根路径加到系统环境变量中去
pwd=os.path.dirname(os.path.abspath(__file__))
sys.path.append(pwd+"../")

# 导入settings文件
os.environ.setdefault("DJANGO_SETTINGS_MODULE","MxShop.settings")

# django初始化
import django
django.setup()

from goods.models import GoodsCategory

from db_tools.data.category_data import row_data

for lev1_cat in row_data:
    lev1_instance = GoodsCategory()
    lev1_instance.name = lev1_cat["name"]
    lev1_instance.code = lev1_cat["code"]
    lev1_instance.category_type = 1
    lev1_instance.save()
    for lev2_cat in lev1_cat["sub_categorys"]:
        lev2_instance = GoodsCategory()
        lev2_instance.name = lev2_cat["name"]
        lev2_instance.code = lev2_cat["code"]
        lev2_instance.category_type = 2
        lev2_instance.parent_category = lev1_instance
        lev2_instance.save()
        for lev3_cat in lev2_cat["sub_categorys"]:
            lev3_instance = GoodsCategory()
            lev3_instance.name = lev3_cat["name"]
            lev3_instance.code = lev3_cat["code"]
            lev3_instance.category_type = 3
            lev3_instance.parent_category = lev2_instance
            lev3_instance.save()