问题
I'm looking to create a dynamic rel="canonical" tag in my application which pulls in the current URL but want to ensure any query parameters are removed. E.g http://www.example.com/test/?page=2 should have the canonical as http://www.example.com/test/, therefore {{ app.request.uri }} doesn't work as this pulls in ?page=2 as well.
Does anyone know how to pull in the absolute path of a page without the query parameters?
回答1:
This will work,
{{ url(app.request.attributes.get('_route'), app.request.attributes.get('_route_params')) }}
回答2:
I just tried to dump baseUrl and can confirm that it does not work.
However, this works:
{{ app.request.getSchemeAndHttpHost ~ app.request.baseUrl ~ app.request.pathInfo }}
I know, it's not pretty but it does the job :)
来源：https://stackoverflow.com/questions/19758747/twig-get-url-for-canonical-tag