源码见:"fastapi_study_road-learning_system_online_courses: fastapi框架实战之--在线课程学习系统"
课程编辑
先来看下课程编辑
1.判断是否登录
2.判断课程是否存在
3.是否有权限(只有自己可以修改自己的课程)
4.名称是否重复
首先,新增一个参数pydantic
class CourseEdit(Courses):id: int
其次,增加主要逻辑
def edit_course(course: CourseEdit, db: Session, user: UsernameRole):"""编辑课程"""db_course = get_course_by_id(db, course.id)if not db_course:return response(code=101201, message="课程不存在")db_user = get_by_username(db, user.username)if db_user.id != course.owner:return response(code=101202, message="权限不足")exists = get_course_by_name(db, course.name)if exists:return response(code=101203, message="该课程名称已存在")try:# 这里只是修改课程的属性,上架下架不能在这改db_course.catalog = course.catalogdb_course.desc = course.descdb_course.icon = course.icondb_course.name = course.namedb.commit()db.refresh(db_course)except:logger.warning(f"method edit_course error:{traceback.format_exc()}")return response(code=101204, message="修改失败")return response()
最后,实现接口api
@course_router.put("/", summary="编辑课程")
def edit(course: CourseEdit,db: Session = Depends(create_db),user: UsernameRole = Depends(get_current_user)):return edit_course(course, db, user)
测试:
查看评论
接下来看下查看评论
1.判断课程是否存在
2.存在返回所有评论
主要逻辑
def get_course_comment(course_id: int, db: Session):"""获取课程评论"""db_course = get_course_by_id(db, course_id)if not db_course:return response(code=101301, message="课程不存在")comments = get_comment_by_course_id(db, course_id)to_client = []if comments:for _ in comments:detail_comment = CourseCommentOut(id=_.id,top=_.top,user=get_by_uid(db, _.user).username,pid=_.pid,add_time=str(_.add_time),context=_.context)to_client.append(detail_comment.dict())return response(data=to_client)
因为course_schema.py中的CourseComment和models中的重名了,所以做了修改
class CourseCommentOut(CourseCommentBase):id: inttop: intclass CourseDetail(Courses):id: intowner: str # 此处重写该字段,返回给客户端时展示用户名而非idcomment: List[CourseCommentOut] = []
实现api
@course_router.get("/course_comment", summary="查看课程评论")
def course_comment(course_id: int,db: Session = Depends(create_db)):return get_course_comment(course_id, db)
测试
这样我们的课程编辑和查看评论接口就完成了