第三百七十六节，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

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#!/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