Category: HTML/CSS

Static Files Versioning in Django

djangokatya1 Comment

Installation

It is pretty easy in 2.2+, just add to your settings:

STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.ManifestStaticFilesStorage'

Don’t forget to set:

DEBUG = False

And do collectstatic. This way Django will run over all of your files and search for them in your statics directory.

ValueError: the file <file_path> could not be found

Be careful with urls – they might work on the website, but it the storage module may not identify the paths correctly. This error occurs:

ValueError: The file 'css/plugins/fonts/fontawesome-webfont.eot' could not be found with <django.contrib.staticfiles.storage.ManifestStaticFilesStorage object at 0x12ae4e220>.

Because it has a path like this

fonts/fontawesome-webfont.eot

You need to make it relative:

../../fonts/fontawesome-webfont.eot

RuntimeError: Max post-process passes exceeded.

If you see an error like this:

Post-processing 'All' failed!
RuntimeError: Max post-process passes exceeded.

Then check your @import statements – remove the commented once and try to find where the import is circular.

Conclusion

Versioning does not tolerate uncarefully made static files. You may spend a few hours removing rudimental imports, files, altering paths, removing urls to non-existent files. That’s totally normal.

Django + Esputnik (part 2) – Error: Cannot transform message content

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Long story short, something is wrong with your dynamic tags. Two rules need to be applied:

1. Use ‘ but not “

Right version:

$!data.get(‘your_variable’)

Wrong version:

$!data.get("your_variable")

2. The tag was broken by another tag

Open the HTML editor of the entire message and Ctrl+F $!data.get(‘.

All the tags need to look like this $!data.get(‘something’). BUT! You may see something like this:

$!data.get(‘something' <span><strong>)

And these <span><strong> are what causing the error.

[Note] ‘ChatConsumer’ has no attribute ‘as_asgi’ – Sloppy development

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Following Channels’ docs I encountered yet another error the solution to what was not obvious right off the bat.

Ditch Channels.

The End.

This was my original post in October 2020 and I stand by it.

You can make your project work with Google Firebase - it handles signals well enough. Yes it is primarily used by mobile developers, but overall it is fine for web too.

I spent trying to install Django Channels on my local Linux 18.04, and I kind of made it work, but then I had to deploy it... And as a professional backender you don't want to let people down.

I decided to try Channels because my Python-related friends talked about it. But days into the trouble I asked my friend about a certain step and he asked me in return "oh so [you use it because] they fixed Channels since two years ago?". I as like ??????????????????. So that moment I ditched it. Too much time wasted, but I like the result I achieved with Firebase.

What I am saying - Firebase is fast and universal. In a matter of days I managed to make and deploy an internal Customer Support chat service that connected mobile app users and a support from the web.</p>

I will be writing a new series on Django + Firebase, and this post is pretty much a short introduction.

Django + Froala: style fix

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Froala provides a great WYSIWYG editor for Django admin, but on page the styles for django-froala-editor didn’t work no matter what I tried. It didn’t look like what I get at all.

At some point, it was clear that providing a quick fix would suffice. I made a short style sheet to make these styles work on Django templates. It is my example that fits my needs. I don’t eliminate the fact that I failed to find an organic solution to this via package files.

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