app\main\views(15).py

#...
@main.route('/new-content/', methods=['GET', 'POST'])
@login_required
def new_content():
    form = ContentForm()
    # Generate Stream token for use in template
    token = current_user.stream_user_token()
    form.collection.choices = [(c.id, c.name) for c in current_user.collections]
    if current_user.can(Permission.WRITE) and form.validate_on_submit():
        collection = Collection.query.get_or_404(form.collection.data)
        if collection.has_content(form.url.data):
            flash('That link is already in this Collection!')
            return redirect(url_for('.new_content'))
        content = Content(title=form.title.data,
                      image=form.image.data,
                      url=form.url.data,
                      description=form.description.data,
                      collection=collection)
        db.session.add(content)
        db.session.commit()
        if content.add_to_stream():
            flash("Your Content has been added!")
            return redirect(url_for('.get_content', id=content.id))
        else:
            db.session.delete(content)
            db.session.commit()
            flash("An error occurred, please try again")
            return redirect(url_for('.new_content'))
    # Pass through token in return statement      
    return render_template('new_content.html', form=form, token=token)