Question

我的烧瓶应用程序中有几个视图。并且每个视图都有自己的子视图，每个子视图都有不断的小模板。视觉演示和网址结构如下：

|-settings ___________ [@app.route(/manage)]
|--menu_settings _____ [@app.route(/manage?current=menu_settings)]
|--main_settings _____ [@app.route(/manage?current=main_settings)]
|--additional_settings [@app.route(/manage?current=additional_settings)]

|-online_store [@app.route(/online_store)]
|--delivery __ [@app.route(/online_store?current=delivery)]
|--payment ___ [@app.route(/online_store?current=payment)]
|--store _____ [@app.route(/online_store?current=store)]

我想要做的是使用if或switch条件。例如：

@admin.route('/manage', methods = ['GET', 'POST'])  
@login_required
def manage(current = ''):

    current = request.args.get('current') 

    if current == 'menu_settings':
        return render_template('admin/manage/site_figuration.html',
            title = 'Site figuration',
            current = current)
    elif current == 'internet_market':
        return render_template('admin/manage/internet_market.html',
        title = 'Internet market',
        current = current)
    else:
        return '404 - Template not found'

我的问题是我做得对吗？或者还有其他更简单的方法可以解决这个问题吗？使用此方法是否合理，或者我必须使用JQuery load（）方法？

Answer 1

看起来你的事情太复杂了。怎么样：

@admin.route('/manage')
@admin.route('/manage/<current>')
@login_required
def manage(current = None):
    if current == 'menu_settings':
        template = 'admin/manage/site_configuration.html'
        title = 'Site configuration'
    elif current == 'internet_market':
        template = 'admin/manage/internet_market.html'
        title = 'Internet market'
    elif current is None:
        template = 'admin/manage/default.html'
        title = 'Default page for manage'
    else:
        flask.abort(404)

    return render_template(template, title=title, current=current)

但我也发现有多条路线作为更正确的方法。为什么重新发明轮子？

@admin.route('/manage')
@login_required
def manage():
    return render_template('admin/manage/default.html',
                           title='Default page for manage',
                           current=None)

@admin.route('/manage/menu_settings')
@login_required
def manage_menu_settings():
    return render_template('admin/manage/site_configuration.html',
                           title='Site configuration',
                           current='menu_settings')

@admin.route('/manage/internet_market')
@login_required
def manage_internet_market():
    return render_template('admin/manage/internet_market.html',
                           title='Internet market',
                           current='internet_market')

注意：请注意，此代码未经测试，请注意错误和/或错别字。

Answer 2

不，我不认为你正确地把它弄好了。

为什么不创建多个视图？

@admin.route('/manage/menu', methods = ['GET', 'POST'])  
@login_required
def manage_menu():
  return render_template('admin/manage/site_figuration.html',
            title = 'Site figuration',
            current = request.args.get('current') )

@admin.route('/manage/internet_market', methods = ['GET', 'POST'])  
@login_required
def manage_market():
  return render_template('admin/manage/internet_market.html',
        title = 'Internet market',
        current = request.args.get('current') )

这种方法更具可扩展性/可维护性。

如果你真的想要你可以将所有这些包装成装饰器或基于类的视图（如果flask支持那些）。

修改

我主要在金字塔而不是Flask工作（老实说，你可能会考虑切换，因为它类似但整体更强大。）

在金字塔中，我会使用基于类的视图，看起来像这样。

@view_defaults(permission='admin') class admin_views: def __init__(self, request): self.request = request # Assign anything else you want to precalculate # for all views to a self variable @view("manage_menu", renderer='manage_menu.jinja2') def menu(self): return {'title':'Manage Menu'} #These are your template variables @view("internet_market", renderer='internet_market.jinja2') def market(self): return {'title': 'Internet Market"}

然后您的路线设置将是：

config.add_route('manage_menu', '/manage/menu') config.add_route('internet_market', '/manage/market')

当你开始使用参数
时，真正强大的地方
# Now the request.params dict will have a key of 'product' # with whatever that path segment is. config.add_route('product_view','/products/{product}')

您还可以轻松地使用
生成链接
route_path('view_name', request_obj, #any variables here)

e.g。

# That'll generate a proper link. # If the client is using SSL it'll be an https link, etc. route_path('product_view', self.request, product=5).

烧瓶中的动态render_template（）

2 个答案: