烧瓶图片未上传

Question

我正在构建Flask应用程序，我希望能够发布图像/视频。当我运行以下代码时，它似乎已加载，但是刷新页面时，我看不到我上传的图像文件。任何帮助将不胜感激。这是相关的代码。我假设我可能必须在models.py中的Post类中添加一列？

这是Forms.py

class PostForm(Form):
    body = PageDownField("What's on your mind DS?", 
    validators = [Required()])   
    post_type = HiddenField("post_type")
    image_file = FileField('Image file')
    submit = SubmitField('Submit')

这是我的观点。py

@server.route('/post_video/<int:id>', methods=['GET', 'POST'])
def upload_file():
    image = None
    form = PostForm()
    if form.validate_on_submit():
        image = 'uploads/' + form.image_file.data.filename
        form.image_file.data.save(os.path.join(ds.static, image))
    return render_template('post.html', form=form, image=image)

这是Models.py

class Post(db.Model):
    __tablename__ = 'posts'
    __table_args__ = {'extend_existing': True} 
    id=db.Column(db.Integer, primary_key = True) 
    body = db.Column(db.Text)
    body_html = db.Column(db.Text)
    timestamp = db.Column(db.DateTime, index=True, 
    default=datetime.utcnow)
    author_id = db.Column(db.Integer, db.ForeignKey('users.id'))
    post_type = db.Column(db.String(10))
    comments = db.relationship('Comment', backref='post', cascade='all, 
    delete-orphan', lazy='dynamic') 

这是post.html

{% extends "base.html" %}

{% import "bootstrap/wtf.html" as wtf %} 


{% block title %}DS - Post{% endblock %}

{% block content %}

{% include '_posts.html' %}

<h4 id="comments">Leave A Comment</h4>

<div class="comment-form">

{{ wtf.quick_form(form) }} 

</div>

{% include '_comments.html' %}

{% endblock %}