Passing variables to css file in django

Robin Lery

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Aug 25, 2013, 1:55:37 PM8/25/13

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Is it possible to pass variables in css files, like in html file. Example:

In views.py:

def home(request):

bgcolor = "#999"

...

In the css file:

body {

background-color : {{bgcolor}};

}

If yes, can you please guide me how to achieve this? I would really appreciate. Thank you!

Andy McKay

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Aug 25, 2013, 8:09:48 PM8/25/13

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Any string can be rendered as a template. This is covered pretty well in the docs:

https://docs.djangoproject.com/en/dev/ref/templates/api/

For example:

>>> from django.template import Context, Template
>>> t = Template("body { background-color: {{ bgcolor }} }")

>>> c = Context({'bgcolor': '#999'})
>>> t.render(context=c)
u'body { background-color: #999 }'

However, CSS is served fastest if it's static and on a CDN and not using a template and CPU resources to render.

Robin Lery

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Aug 25, 2013, 10:08:11 PM8/25/13

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Oh! I am sorry. What I meant was, how do I let users customize their page if they wanted to? I suppose I could have done this without using external stylesheet, but yes, CSS is served fastest if it's static. I hope, I made myself clear. Please guide me if there's a way to achive this

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Chris Lawlor

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Aug 26, 2013, 12:42:19 PM8/26/13

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The simplest solution is probably to keep all of the CSS that users can't customize in an external file (to be served as a static asset), but move anything that's user customizable to the <head> of your base template, in a <style> tag. You'd probably want to implement some sort of caching for user style preferences, assuming these won't be changing often.

Giulio Calacoci

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Aug 27, 2013, 9:10:52 AM8/27/13

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May I suggest to save user defined css to a file saved in a specific path?

for example if user John_Doe submits a customized css, save it in /<server_path_to_static_files>/css/users/john_doe/override.css

then in the head of the html file load the user defined css always after the default one.

this way is always static, and the result is cleaner than any <style> tag...

my two cents.

regards

Giulio.

-- 
 Giulio Calacoci - 2ndQuadrant Italia
 PostgreSQL Training, Services and Support
 giulio....@2ndQuadrant.it | www.2ndQuadrant.it

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