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web2pycanonical-link

web2py insert <link rel=canonical> into header

In web2py, from within a view, how do I insert a <link rel="canonical" href="..."> link into the header of the page. I know I can add a link tag with rel="stylesheet" using e.g. {{response.files.append(URL('static','css/base.css'))}}. Is there an equivalent for rel="canonical"?

Solution

  • One option is to create a block in the head section of the layout.html view:

    {{block canonical}}{{end}}

    Then in any view where you want to set the canonical link:

    {{block canonical}}
<link rel="canonical" href="...">
{{end}}

    A simpler option would be to include the following in the head of layout.html:

    {{if response.canonical:}}
<link rel="canonical" href="{{=response.canonical}}">
{{pass}}

    Then anywhere in a model or controller file you can do:

    response.canonical = '...'