微电影之登陆装饰器、页面的编辑

一、登陆装饰器

from functools import wraps
# 登陆
def admin_login_req(f):
    @wraps(f)
    def decorated_function(*args, **kwargs):
        if "user" not in session:
            return redirect(url_for("admin.login", next=request.url))  # 获取到要跳转到的地址
        return f(*args, **kwargs)
    return decorated_function

二、编辑页面

# 编辑电影
@admin.route("/movie/edit/<int:id>/", methods=["GET", "POST"])
#装饰器认证
@admin_login_req
@admin_auth
def movie_edit(id=None):
    form = MovieForm()
    form.url.validators = []
    form.logo.validators = []
    movie = Movie.query.get_or_404(id)
    # 表单设置初始值
    if request.method == "GET":
        form.info.data = movie.info
        form.tag_id.data = movie.tag_id
        form.star.data = movie.star
    if form.validate_on_submit():
        if not os.path.exists(app.config["UP_DIR"]):
            os.makedirs(app.config["UP_DIR"])
            os.chmod(app.config["UP_DIR"], "rw")  # 目录权限
        if form.url.data:
            file_url = secure_filename(form.url.data.filename)  # 安全性
            movie.url = change_filename(file_url)
            form.url.data.save(app.config["UP_DIR"] + movie.url)
        if form.logo.data:
            file_logo = secure_filename(form.logo.data.filename)
            movie.logo = change_filename(file_logo)
            # 文件保存
            form.logo.data.save(app.config["UP_DIR"] + movie.logo)
        data = form.data
        movie.star = data["star"]
        db.session.add(movie)
        db.session.commit()
        flash("修改电影成功", "ok")
        return redirect(url_for('admin.movie_edit', id=id))
    return render_template("admin/movie_edit.html", form=form, movie=movie)

三、html模板

 <label for="input_title">{{ form.title.label }}</label>
{{ form.title(value=movie.title) }}
{% for err in form.title.errors %}
<div class="col-md-12">
<span style="color: red">{{ err }}</span>
</div>
{% endfor %}