views.py 文件源码

def course():
    username = loggedIn(session, LoggedIn)
    if username == False:
        form = LoginForm()
        return render_template('login.html', form=form)

    form = CourseForm()
    if form.validate_on_submit():
        user = User.query.filter_by(username=username).first()

        # save thumbnail
        thumbnail = form.thumbnail.data
        filename = secure_filename(thumbnail.filename)

        rand_ID = str(randId())
        while True:
            result = Course.query.filter_by(thumbnail=rand_ID).first()
            if result:
                rand_ID = str(randId())
            else:
                break

        filename = ''+rand_ID+'.jpg'
        target = path.join(APP_ROOT, 'static/courses/')
        if not path.isdir(target):
            mkdir(target)

        thumbnail.save(path.join(target, filename))

        # save course
        title = request.form['title']
        description = request.form['description']
        required_skills = request.form['required_skills']
        course = Course(user_id=user.id, title=title, description=description, thumbnail=filename, required_skills=required_skills)
        db.session.add(course)
        db.session.commit()

        return render_template('index.html', username=username)

    return render_template('new_course.html', form=form)