Django Rest Framework(一)

•基于Django

先创建一个django项目，在项目中创建一些表，用来测试rest framework的各种组件

class UserInfo(models.Model):
    """用户信息表"""
    user = models.CharField(max_length=32)
    pwd = models.CharField(max_length=32)


class UserToken(models.Model):
    """用户token表"""
    user = models.OneToOneField(to="UserInfo", on_delete=models.CASCADE)
    token = models.CharField(max_length=64)


class Courses(models.Model):
    """
    课程表
    """
    name = models.CharField(verbose_name="课程名称", max_length=32)
    course_img = models.CharField(verbose_name="课程图片", max_length=64)
    level_choices = (
        (1, "初级"),
        (2, "中级"),
        (3, "高级"),
    )
    level = models.IntegerField(verbose_name="难度", choices=level_choices, default=1)

    def __str__(self):
        return self.name


class CourseDetail(models.Model):
     """课程详细表"""
     course = models.OneToOneField(to="Courses", on_delete=models.CASCADE)
     slogan = models.CharField(verbose_name="口号", max_length=255)
     why = models.CharField(verbose_name="为什么要学", max_length=255)
     recommend_courses = models.ManyToManyField(verbose_name="推荐课程", to="Courses",
                                                related_name="rc")  # related_name设置反向查询的字段，有多个关联时指定某个字段进行反向查询

    def __str__(self):
         return "课程详细：" + self.course.title



class Chapter(models.Model):
    """
    课程章节表
    """
    num = models.IntegerField(verbose_name="章节")
    name = models.CharField(verbose_name="章节名称", max_length=32)
    course = models.ForeignKey(verbose_name="所属课程", to="Courses", related_name='coursechapters', on_delete=models.CASCADE)

    def __str__(self):
        return self.name

models.py