基于IMOOC强力django+杀手级xadmin 打造上线标准的在线教育平台课程的学习（10）——Operation models.py的设计

from datetime import datetime

from django.db import models

# Create your models here.

from users.models import UserProfile
from courses.models import Course

class UserAsk(models.Model):
name = models.CharField(max_length=20, verbose_name='姓名')
mobile = models.CharField(max_length=11, verbose_name='手机')
course_name = models.CharField(max_length=50, verbose_name='课程名')
add_time = models.DateTimeField(default=datetime.now, verbose_name='添加时间')

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

class CourseComments(models.Model):
user = models.ForeignKey(UserProfile, verbose_name='用户')
course = models.ForeignKey(Course, verbose_name='课程')
comments = models.CharField(max_length=200, verbose_name='评论')
add_time = models.DateTimeField(default=datetime.now, verbose_name='添加时间')

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

class UserFavorite(models.Model):
user = models.ForeignKey(UserProfile, verbose_name='用户')
# ID 是课程的 ID 或者是 讲师、课程机构的 ID
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='收藏类型')
add_time = models.DateTimeField(default=datetime.now, verbose_name='添加时间')

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

# 初始化判断是否收藏
# has_fav = False
# if request.user.is_authenticated():
#     if UserProfile.objects.filter(user=request.user, fav_id=course_org.id, fav_type=2):
#         has_fav = True

class UserMessage(models.Model):
# 如果 为 0 代表全局消息，否则就是用户的 ID
user = models.IntegerField(default=0, verbose_name='接受用户')
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='添加时间')

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

# CourseComments 和 UserCourse 字段差不多，可以使用 UserCourse 继承 CourseComments
class UserCourse(models.Model):
user = models.ForeignKey(UserProfile, verbose_name='用户')
course = models.ForeignKey(Course, verbose_name='课程')
add_time = models.DateTimeField(default=datetime.now, verbose_name='添加时间')

class Meta:
verbose_name = '用户学习过的课程'
verbose_name_plural = verbose_name