添加机构organizations模块

startapp organizations

models内容：

from django.db import models
from datetime import datetime

# Create your models here.

class CityDict(models.Model):
    name = models.CharField(max_length=100, verbose_name='城市名')
    desc = models.CharField(max_length=200, verbose_name='城市描述')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='创建时间')

    class Meta:
        verbose_name = '城市'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name

class CourseOrg(models.Model):
    name = models.CharField(max_length=100, verbose_name='机构名')
    desc = models.CharField(max_length=300, verbose_name='机构描述')
    click_nums = models.IntegerField(default=0, verbose_name='点击数')
    fav_nums = models.IntegerField(default=0, verbose_name='收藏数')
    image = models.ImageField(max_length=100, verbose_name='封面图', upload_to='static/uploads/orgs/%Y/%m')
    address = models.CharField(max_length=150, verbose_name='机构地址')
    city = models.ForeignKey(CityDict, on_delete=models.CASCADE, verbose_name='所在城市')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='创建时间')

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

    def __str__(self):
        return self.name

class Teacher(models.Model):
    org = models.ForeignKey(CourseOrg, on_delete=models.CASCADE, verbose_name='所属机构')
    name = models.CharField(max_length=100, verbose_name='教师名')
    desc = models.CharField(max_length=300, verbose_name='教师描述')
    work_years = models.IntegerField(default=0, verbose_name='工作年限')
    work_company = models.CharField(max_length=100, verbose_name='就职公司')
    work_position = models.CharField(max_length=100, verbose_name='公司职位')
    points = models.CharField(max_length=100, verbose_name='教训特点')
    click_nums = models.IntegerField(default=0, verbose_name='点击数')
    image = models.ImageField(max_length=100, verbose_name='教师图', upload_to='static/uploads/teachers/%Y/%m')
    fav_nums = models.IntegerField(default=0, verbose_name='收藏数')
    add_time = models.DateTimeField(default=datetime.now, verbose_name='创建时间')

    class Meta:
        verbose_name = '教师'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name

每个表都有几个常用的字段，比如name，description，add_time以及meta信息和 __str__ 重载等