php - How to embed stylesheets with Assetic based on a value in the session -

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i want embed different stylesheet files assetic in twig template of symfony2 project. used stylesheet depends on theme setting of user.

i used

{% stylesheets          '@cuteflowcorebundle/resources/public/css/application.css'         '@cuteflowcorebundle/resources/public/css/theme/'~app.session.get('cuteflow_theme')~'/application.css' %}     <link rel="stylesheet" href="{{ asset_url }}" type="text/css" media="all" /> {% endstylesheets %}

but throws error:

unexpected token "operator" of value "~" in "corebundle::layout.html.twig"

i tried following too. didn't either.

{% set theme = '@cuteflowcorebundle/resources/public/css/theme/'~app.session.get('cuteflow_theme')~'/application.css' %} {% stylesheets          '@cuteflowcorebundle/resources/public/css/application.css'         theme %}     <link rel="stylesheet" href="{{ asset_url }}" type="text/css" media="all" /> {% endstylesheets %}

any ideas how can done?

the answer simple : cannot it.

assetic iterate templates , generate every files {% stylesheets %} blocks.

if use variable (session example), assetic cannot "guess" possible values.

you have 2 possibilities :

  • separate 2 css calls (1 common call, 1 dedicated theme css) - makes more sense me
  • create 1 css per theme

separate 2 css calls

{% stylesheets "a.css" "b.css" %} ... {% endstylesheets %} <link rel="stylesheet" href="{{ asset("css/" ~ theme ~ ".css") }}" />

create 1 css per theme

if want create 1 theme each available theme, keeping simple, have manually :

{% if theme == "xxx" %}   {%stylesheets "a.css" "xxx.css" %} ... {% endstylesheets %} {% elseif theme == "yyy" %}   {%stylesheets "a.css" "yyy.css" %} ... {% endstylesheets %} {% endif %}

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