添加operations模块

添加operations模块，models内容为：

from django.db import models
from datetime import datetime
from users.models import UserProfile
from courses.models import Course

# Create your models here.

class UserAsk(models.Model):
    name = models.CharField(max_length=100, verbose_name='咨询者姓名')
    mobile = models.CharField(max_length=11, verbose_name='手机')
    course_name = models.CharField(max_length=50, verbose_name='课程名次')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='创建时间')

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

    def __str__(self):
        return self.name

class CourseComment(models.Model):
    user = models.ForeignKey(UserProfile, on_delete=models.CASCADE, verbose_name='用户')
    name = models.CharField(max_length=100, verbose_name='评论名')
    course = models.ForeignKey(Course, on_delete=models.CASCADE, verbose_name='课程')
    comments = models.CharField(max_length=200, verbose_name='评论')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='创建时间')

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

    def __str__(self):
        return self.name

class UserFavorite(models.Model):
    user = models.ForeignKey(UserProfile, on_delete=models.CASCADE, verbose_name='收藏用户')
    name = models.CharField(max_length=100, verbose_name='收藏名')
    fav_id = models.IntegerField(default=0, verbose_name='数据ID')
    fav_type = models.IntegerField(default=1, choices=((1, '课程'), (2, '机构'), (3, '教师')), verbose_name='收藏类型')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='创建时间')

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

    def __str__(self):
        return self.name

class UserMessage(models.Model):
    # user发送的消息，有发送给单个用户，也有发给全体或多个用户
    # 本例中 0 是全体接收消息用户，非0则是指定的消息接收用户id
    user = models.IntegerField(default=0, verbose_name='接受消息用户id')
    name = models.CharField(max_length=100, verbose_name='消息名')
    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='创建时间')

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

    def __str__(self):
        return self.name

class UserCourse(models.Model):
    user = models.ForeignKey(UserProfile, on_delete=models.CASCADE, verbose_name='用户')
    name = models.CharField(max_length=100, verbose_name='用户课程名')
    course = models.ForeignKey(Course, on_delete=models.CASCADE, verbose_name='课程')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='创建时间')

    class Meta:
        verbose_name = '用户课程'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name

创建好各个模块后，需要在settings中添加注册相应的模块，这样才可以进行数据的迁移。比laravel等的数据迁移代码量少很多啊。