django从零开始-模型

1.设置统计表

配置models.py

from django.db import models


# Create your models here.
# 发布会
class Event(models.Model):
    name = models.CharField(max_length=100)            # 发布会标题
    limit = models.IntegerField()                      # 限制人数
    status = models.BooleanField()                     # 状态
    address = models.CharField(max_length=200)         # 地址
    start_time = models.DateTimeField('events time')   # 发布会时间
    create_time = models.DateTimeField(auto_now=True)  # 创建时间（自动获取当前时间）

    def __str__(self):
        return self.name


# 嘉宾
class Guest(models.Model):
    event = models.ForeignKey(Event)            # 关联发布会id
    realname = models.CharField(max_length=64)  # 姓名
    phone = models.CharField(max_length=16)     # 手机号
    email = models.EmailField()                 # 邮箱
    sign = models.BooleanField()                # 签到状态
    create_time = models.DateTimeField(auto_now=True)  # 创建时间（自动获取当前时间）

    class Meta:
        unique_together = ('phone', 'event')

    def __str__(self):
        return self.realname


# 修改创建时间类型
# ALTER TABLE  `sign_event` CHANGE  `create_time`  `create_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
# ALTER TABLE  `sign_guest` CHANGE  `create_time`  `create_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP

2.后台管理-编辑admin.py

from django.contrib import admin
from sign.models import *


# Register your models here.
class EventAdmin(admin.ModelAdmin):
    list_display = ['name', 'status', 'start_time','id']
    search_fields = ['name']    # 搜索功能
    list_filter = ['status']    # 过滤器


class GuestAdmin(admin.ModelAdmin):
    list_display = ['realname', 'phone','email','sign','create_time','event_id']
    list_display_links = ('realname', 'phone') # 显示链接
    search_fields = ['realname','phone']       # 搜索功能
    list_filter = ['event_id']                 # 过滤器


admin.site.register(Event, EventAdmin)
admin.site.register(Guest, GuestAdmin)

3.数据访问

• python manage.py shell 进入shell命令行进行数据操作
• 插入数据 data= Event（）   data.save()
• 查询数据 
• 删除数据
• 更新数据

4.配置mysql数据库

编辑setting.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'HOST':'127.0.0.1',
        'PORT':'3306',
        'NAME':'guest',
        'USER':'root',
        'PASSWORD':'123456',
        'OPTIONS': {
            'init_command':"SET sql_mode = 'STRICT_TRANS_TABLES'",
        }
    }
}