第四节，Django+Xadmin打造上线标准的在线教育平台—创建用户操作app，在models.py文件生成5张表，用户咨询表、课程评论表、用户收藏表、用户消息表、用户学习表

第四节，Django+Xadmin打造上线标准的在线教育平台—创建用户操作app，在models.py文件生成5张表，用户咨询表、课程评论表、用户收藏表、用户消息表、用户学习表

创建名称为app_mxonling_operation的用户操作APP，写数据库操作文件models.py

models.py文件

#!/usr/bin/env python
# -*- coding:utf-8 -*-
from __future__ import unicode_literals
from datetime import datetime

from django.db import models            # 导入models对象

from app_users.models import Users      # 导入用户信息表
from app_courses.models import Course   # 导入课程表


class UserAsk(models.Model):
    name = models.CharField(max_length=20, verbose_name='姓名')
    mobile = models.CharField(max_length=10, verbose_name='手机')
    course_name = models.CharField(max_length=50, verbose_name='课程名')
    add_time = models.DateTimeField(default=datetime.now)

    class Meta:
        verbose_name = '用户咨询表'
        verbose_name_plural = verbose_name


class CourseComments(models.Model):
    user = models.ForeignKey(Users, verbose_name='评论用户')
    course = models.ForeignKey(Course, verbose_name='评论课程')
    comments = models.CharField(max_length=200, verbose_name='评论内容')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='评论时间')

    class Meta:
        verbose_name = '课程评论表'
        verbose_name_plural = verbose_name


class UserFavorite(models.Model):
    user = models.ForeignKey(Users, verbose_name='用户收藏')
    fav_id = models.IntegerField(default=0, verbose_name='收藏数据ID')
    fav_type = models.IntegerField(choices=((1, '课程'), (2, '课程机构'), (3, '讲师')), default=1, verbose_name='用户收藏类型')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='收藏时间')

    class Meta:
        verbose_name = '用户收藏表'
        verbose_name_plural = verbose_name


class UserMessage(models.Model):
    user = models.IntegerField(default=0, verbose_name='接收用户id')    # 0表示所有用户
    message = models.CharField(max_length=500, verbose_name='消息内容')
    has_read = models.BooleanField(default=False, verbose_name='是否已读')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='消息时间')

    class Meta:
        verbose_name = '用户消息表'
        verbose_name_plural = verbose_name


class UserCourse(models.Model):
    user = models.ForeignKey(Users, verbose_name='学习用户')
    course = models.ForeignKey(Course, verbose_name='学习课程')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='学习时间')

    class Meta:
        verbose_name = '用户学习表'
        verbose_name_plural = verbose_name