I'm trying to understand the Version One - Use Namespace.attr example for accessing descendant attributes in Mako. I have the base page template in page.html, and the index page in index.html which inherits page.html. I want to allow page.html (and page that inherits it) to specify their own Javascript and CSS files to include and allow page.html to handle rendering them.
page.html:
<!DOCTYPE html>
<%namespace name="common" file="common.html"/>
<%
# Scan for scripts and styles to include.
include_scripts = []
include_styles = []
for ns in context.namespaces.values():
if hasattr(ns.attr, 'include_scripts'):
include_scripts.extend(ns.attr.include_scripts)
if hasattr(ns.attr, 'include_styles'):
include_styles.extend(ns.attr.include_styles)
%>
<html>
<head>
<title>${self.attr.title}</title>
% for style in include_styles:
${common.style(style)}
% endfor
% for script in include_scripts:
${common.script(script)}
% endfor
</head>
<body>
${next.main()}
</body>
</html>
common.html:
<%def name="script(src)">
<script type="application/javascript" src="%{src | h}"></script>
</%def>
<%def name="style(href)">
<link rel="stylesheet" type="text/css" href="${href | h}"/>
</%def>
index.html:
<%inherit file="page.html"/>
<%!
# Set document title.
title = "My Index"
# Set document scripts to include.
include_scripts = ['index.js']
# Set document styles to include.
include_styles = ['index.css']
%>
<%def name="main()">
<h1>${title | h}</h1>
</%def>
This all renders the following page:
<!DOCTYPE html>
<html>
<head>
<title>My Index</title>
</head>
<body>
<h1>My Index</h1>
</body>
</html>
The rendered page is missing the styles and javascript includes that I'm expecting which should be:
<!DOCTYPE html>
<html>
<head>
<title>My Index</title>
<script type="application/javascript" src="index.js"></script>
<link rel="stylesheet" type="text/css" href="index.css"/>
</head>
<body>
<h1>My Index</h1>
</body>
</html>
In page.html, if I print context.namespaces I get:
{('page_html', u'common'): <mako.runtime.TemplateNamespace object at 0x1e7d110>}
Which indicates that only the imported common.html template is available and but no descendant template namespaces which inherit from page.html. How do I iterate through the inheriting template namespaces and check their attributes? I know I can use next to get the next template namespace, but how do I get the next template namespace after that if it exists?
The code snippet in page.html to check descendent templates for the
include_scriptsandinclude_stylesattributes has to traversenextof each descendant template namespace to get to the next. Usingcontext.namespacesonly appears to list the local namespaces.