Hi, I'd like to do the simplest possible thing in Pyramid / URL Dispatch,
yet it seems almost impossibly hard to do it.
So it's the super common case of having a menu, and I'd only like to insert
menu items which are available for the current user.
I'm looking for a function to fit in this usage:
{% macro nav_item(request, route_name, text) -%}
{% if request.view_execution_permitted(route_name) %}
<li>
<a href="{{ request.route_url(route_name) }}">{{ text }}</a>
</li>
{% endif %}
{%- endmacro %}
My problems are the following:
1. view_execution_permitted doesn't work like this, unlike other security
functions, for example request.has_permission(). Why?
2. Going the hard way and making a custom wrapper around
view_execution_permitted,
and adding it to request via add_request_method, I'm still stuck in how to
use view_execution_permitted, for the following reason:
2.1. It needs a context. What is a context? I never had to use any context
in URL Dispatch with SessionAuthenticationPolicy, and it really isn't
explained on the website. I tried Googling view_execution_permitted and
grepping for code in Github, but I couldn't find anything, except a Github
issue ticket saying: "view_execution_permitted does not work with URL
dispatch", which didn't help me.
https://github.com/Pylons/pyramid/issues/673
2.2. It needs a name. Is this route_name? I hope so?
Maybe I don't even need view_execution_permitted. I just want a simple
request.is_allowed_route(route_name). How can I do it?
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