1.課程主頁面3張表

from django.db import models
from utils.MyBaseModel import Base


class CourseType(Base):
    title = models.CharField('課程類別', max_length=16)
    sequence = models.IntegerField('展示順序', default=10)
    class Meta:
        db_table = 'tb_coursetype'
    def __str__(self):
        return
 
 self.title


class CourseTag(Base):
    title = models.CharField('課程標籤', max_length=16)
    sequence = models.IntegerField('展示順序', default=10)
    class Meta:
        db_table = 'tb_coursetag'
    def __str__(self):
        return self.title


class Course(Base):
    STATUS = (
        ('0', '即將上線'),
        (
 
'1', '已上線'),
        ('2', '已下線'),
    )


    title = models.CharField('課程名', max_length=24)
    desc = models.CharField('課程描述', max_length=256)
    img = models.ImageField('課程logo', upload_to='course', null=True)
    course_type = models.ForeignKey(CourseType, verbose_name='課程型別', on_delete=models.SET_NULL, default=None, null=True)
    course_tag 
 
= models.ManyToManyField(CourseTag, verbose_name='課程標籤')
    status = models.CharField('課程狀態', choices=STATUS, max_length=8, default='1')
    attention = models.IntegerField('關注人數', default=0)
    learner = models.IntegerField('學習人數', default=0)
    class Meta:
        db_table = 'tb_course'
    def __str__(self):
        return self.title

2.課程章節表2張表

class Chapters(Base):
    title = models.CharField('章標題', max_length=24)
    serial_num = models.IntegerField('章序號')
    course = models.ForeignKey(Course, related_name='chapters', on_delete=models.SET_NULL, null=True)
    class Meta:
        db_table = 'tb_chapters'
    def __str__(self):
        return self.title


class Sections(Base):
    title = models.CharField('節標題', max_length=24)
    serial_num = models.IntegerField('節序號')
    chapters = models.ForeignKey(Chapters, related_name='sections', on_delete=models.SET_NULL, null=True)
    learn_time = models.IntegerField('學習小時', default=1)
    video = models.FileField("上傳視訊", upload_to="videos/%Y%m%d/", blank=True, max_length=1024)
    seq_num = models.IntegerField("序號", default=1)

    class Meta:
        db_table = 'tb_sections'
    def __str__(self):
        return self.title

3.course/admin.py註冊後臺管理

from django.contrib import admin
from .models import Sections,Chapters,CourseTag,CourseType,Course

modellist=[Sections,Chapters,CourseTag,CourseType,Course]
for model in modellist:
    admin.site.register(model)

4.遷移表

python manage.py makemigrations 
python manage.py migrate