django 模块创建 同步数据表 使用方法

1 配置数据库   100行左右

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        # 'NAME': 'students',
        'NAME': 'django_mall',
        'USER':'root',
        'PASSWORD':'',
        'HOST':'127.0.0.1',
        'PORT':'3306'
    }
}

2 加载模块

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'debug_toolbar',
    'mall.apps.MallConfig',            #商品模块
    'accounts.apps.AccountsConfig',    #用户账户模块
    'system.apps.SystemConfig',        #系统模块
    'mine.apps.MineConfig',             #个人模块
    'weibo.apps.WeiboConfig',
    'grade.apps.GradeConfig'

]

3 创建模型数据库

constants.py

# 系统模块-轮播图配置
SLIDER_TYPE_INDEX = 11
SLIDER_TYPES_CHOICES = (
    (SLIDER_TYPE_INDEX,'首页')
)

#系统模块 - 新闻通知
NEWS_TYPE_NEW = 11
NEWS_TYPE_NOTICE = 12
NEWS_TYPES_CHOICES = (
    (NEWS_TYPE_NEW,'新闻'),
    (NEWS_TYPE_NOTICE,'通知')
)

from django.db import models

from utils import constants
# Create your models here.

class Slider(models.Model):
    """  系统轮播图 """
    name = models.CharField('名称',max_length=32)
    desc = models.CharField('描述',max_length=100,null=True,blank=True)
    type = models.SmallIntegerField('展现位置',
                                    choices=constants.SLIDER_TYPES_CHOICES,
                                    default=constants.SLIDER_TYPE_INDEX)
    img = models.ImageField('图片', upload_to='slider')
    reorder = models.SmallIntegerField('排序',default=0,help_text='数字越大,越靠前')
    start_time = models.DateTimeField('生效开始时间',null=True,blank=True)
    end_time = models.DateTimeField('生效结束时间',null=True,blank=True)

    target_url = models.CharField('跳转地址',max_length=255,null=True,blank=True)
    is_valid = models.BooleanField('是否删除',default=True)

    created_at = models.DateTimeField('创建时间',auto_now_add=True)
    updated_at = models.DateTimeField('最后修改时间',auto_now=True)

    class Meta:
        db_table = 'system_slider'
        ordering = ['-reorder']

class News(models.Model):
    """ 新闻及通知 """
    types = models.SmallIntegerField('类型',choices=constants.NEWS_TYPES_CHOICES,
                                     default=constants.NEWS_TYPE_NEW)
    title = models.CharField('标题',max_length=255)
    content = models.TextField('内容')
    reorder = models.SmallIntegerField('排序', default=0, help_text='数字越大,越靠前')
    start_time = models.DateTimeField('生效开始时间', null=True, blank=True)
    end_time = models.DateTimeField('生效结束时间', null=True, blank=True)
    view_count = models.IntegerField('浏览次数',default=0)

    is_top = models.BooleanField('是否置顶',default=False)

    is_valid = models.BooleanField('是否删除', default=True)

    created_at = models.DateTimeField('创建时间', auto_now_add=True)
    updated_at = models.DateTimeField('最后修改时间', auto_now=True)

    class Meta:
        db_table = 'system_news'
        ordering = ['-reorder']

4 命令同步数据表

python manage.py check

python manage.py makemigrations

python manage.py migrate

同步成功