慕学在线网0.3_四个model

1、四个model完整代码：

# users/models.py

from datetime import datetime

from django.db import models
from django.contrib.auth.models import AbstractUser


class UserProfile(AbstractUser):

    gender_choices = (
        ('male', '男'),
        ('female', '女')
    )

    nick_name = models.CharField('昵称', max_length=50, default='')
    birthday = models.DateField('生日', null=True, blank=True)
    gender = models.CharField('性别', max_length=10, choices=gender_choices, default='female')
    adress = models.CharField('地址', max_length=100, default='')
    mobile = models.CharField('手机号', max_length=11, null=True, blank=True)
    image = models.ImageField(upload_to='image/%Y%m', default='image/default.png', max_length=100)

    class Meta:
        verbose_name = '用户信息'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.username


class EmailVerifyRecord(models.Model):
    send_choices = (
        ('register', '注册'),
        ('forget', '找回密码')
    )

    code = models.CharField('验证码', max_length=20)
    email = models.EmailField('邮箱', max_length=50)
    send_type = models.CharField(choices=send_choices, max_length=10)
    send_time = models.DateTimeField(default=datetime.now)

    class Meta:
        verbose_name = '邮箱验证码'
        verbose_name_plural = verbose_name


class Banner(models.Model):
    title = models.CharField('标题', max_length=100)
    image = models.ImageField('轮播图', upload_to='banner/%Y%m', max_length=100)
    url = models.URLField('访问地址', max_length=200)
    index = models.IntegerField('顺序', default=100)
    add_time = models.DateTimeField('添加时间', default=datetime.now)

    class Meta:
        verbose_name = '轮播图'
        verbose_name_plural = verbose_name

　　

# coursemodels.py

from django.db import models
from datetime import datetime
# Create your models here.


class Course(models.Model):
    name = models.CharField(max_length=50, verbose_name="课程名")
    desc = models.CharField(max_length=300, verbose_name="课程描述")
    detail = models.TextField(verbose_name="课程详情")  # 暂时为TextField
    degree = models.CharField(choices=(("cj", "初级"), ("zj", "中级"), ("gj", "高级")), max_length=2)
    learn_times = models.IntegerField(default=0, verbose_name="学习时长（分钟数）")
    students = models.IntegerField(default=0, verbose_name="学习人数")
    fav_nums = models.IntegerField(default=0, verbose_name="收藏人数")
    image = models.ImageField(upload_to="course/%Y/%m", verbose_name="封面图", max_length=100)
    click_num = models.IntegerField(default=0, verbose_name="点击数")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "课程"
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name


class Lesson(models.Model):
    course = models.ForeignKey(Course, verbose_name="课程", on_delete=models.CASCADE)  # 删除关联数据,与之关联也删除
    name = models.CharField(max_length=100, verbose_name="章节名")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "章节"
        verbose_name_plural = verbose_name

    def __str__(self):
        return '《{0}》课程的章节 >> {1}'.format(self.course, self.name)


class Video(models.Model):
    lesson = models.ForeignKey(Lesson, verbose_name="章节", on_delete=models.CASCADE)
    name = models.CharField(max_length=100, verbose_name="视频名称")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "视频"
        verbose_name_plural = verbose_name


class CourseResource(models.Model):
    course = models.ForeignKey(Course, verbose_name="课程", on_delete=models.CASCADE)
    name = models.CharField(max_length=100, verbose_name="视频名称")
    download = models.FileField(upload_to="course/resource/%Y/%m", verbose_name="资源文件", max_length=100)
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "课程信息"
        verbose_name_plural = verbose_name

　　

# organizationmodels.py
from datetime import datetime

from django.db import models


class CityDict(models.Model):
    name = models.CharField('城市', max_length=20)
    desc = models.CharField('描述', max_length=200)
    add_time = models.DateTimeField(default=datetime.now)

    class Meta:
        verbose_name = '城市'
        verbose_name_plural = verbose_name


class CourseOrg(models.Model):
    name = models.CharField('机构名称', max_length=50)
    desc = models.TextField('机构描述')
    click_nums = models.IntegerField('点击数', default=0)
    fav_nums = models.IntegerField('收藏数', default=0)
    image = models.ImageField('封面图', upload_to='org/%Y%m', max_length=100)
    address = models.CharField('机构地址', max_length=150)
    city = models.ForeignKey(CityDict, verbose_name='所在城市', on_delete=models.CASCADE)
    add_time = models.DateTimeField(default=datetime.now)

    class Meta:
        verbose_name = '课程机构'
        verbose_name_plural = verbose_name


class Teacher(models.Model):
    org = models.ForeignKey(CourseOrg, verbose_name='所属机构', on_delete=models.CASCADE)
    name = models.CharField('教师名', max_length=50)
    work_years = models.IntegerField('工作年限', default=0)
    work_company = models.CharField('就职公司', max_length=50)
    work_position = models.CharField('公司职位', max_length=50)
    points = models.CharField('教学特点', max_length=50)
    click_nums = models.IntegerField('点击数', default=0)
    fav_nums = models.IntegerField('收藏数', default=0)
    add_time = models.DateTimeField(default=datetime.now)

    class Meta:
        verbose_name = '教师'
        verbose_name_plural = verbose_name

    def __str__(self):
        return "[{0}]的教师: {1}".format(self.org, self.name)

　　

# operationmodels.py

from datetime import datetime

from django.db import models

from course.models import Course
from users.models import UserProfile


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

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

    def __str__(self):
        return self.name


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

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


class UserFavorite(models.Model):
    FAV_TYPE = (
        (1, '课程'),
        (2, '课程机构'),
        (3, '讲师')
    )

    user = models.ForeignKey(UserProfile, verbose_name='用户', on_delete=models.CASCADE)
    fav_id = models.IntegerField('数据id', default=0)
    fav_type = models.IntegerField(verbose_name='收藏类型', choices=FAV_TYPE, default=1)
    add_time = models.DateTimeField('添加时间', default=datetime.now)

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


class UserMessage(models.Model):
    user = models.IntegerField('接受用户', default=0)
    message = models.CharField('消息内容', max_length=500)
    has_read = models.BooleanField('是否已读', default=False)
    add_time = models.DateTimeField('添加时间', default=datetime.now)

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


class UserCourse(models.Model):
    user = models.ForeignKey(UserProfile, verbose_name='用户', on_delete=models.CASCADE)
    course = models.ForeignKey(Course, verbose_name='课程', on_delete=models.CASCADE)
    add_time = models.DateTimeField('添加时间', default=datetime.now)

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

　
2、创建完后记得把App添加到settings的“INSTALLED_APPS”里面

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'users',
    'course',
    'organization',
    'operation',
]

　　
3、迁移到数据库

makemigrations
migrate

　　
4、将四个App放到一起

• 新建package：apps
• 把四个App都拖进去
  
  红框内的 √ 记得去掉
• 然后Mark为sourceRoot

　
5、然而我们发现，在cmd下运行的话还是会报错

　　
需要在settings设置：

import os
import sys

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, os.path.join(BASE_DIR, 'apps'))

再运行就可以了

　　
未完待续~~~