在Django中选择性加载JavaScript文件

Question

I have Post model for a blog app in Django. It has a field named body . In posts, I may use Latex so I need to use MathJax.js . In some posts, I add code snippet, so I use highlight.js . In some I use both, in some I use none of them.

I want to load the relevant javascript depending on the body field of the Post model (similar to THIS ). How can I make the relevant .js file(s) to load automatically?

I know that I can add an indicator field like hasLatex ( True , False ) or hasCode ( True , False ). But I'm lazy, I want Post.body to be automatically scanned and only relevant js files loaded.

Answer 1

Set something in your context or use a template context processor. For example I load code that handles forms if there is a form key is my context. For something I want on almost every page I put a no_something in my context to disable it. This is done by putting a conditional around the tag in your base template. If the variable is not there or is false it won't show.

What I also do is put my static files in lists inside of my context. JavaScript is in context['js'] and css in context['css'] . Those are looped through in my header. I can implement get_context_data in a base class, and all the views that extend from that will have the javascript and css files.