django add variable to string inside a html tag

Question

I was trying to add a variable to a string inside a html tag, but it didn't work. Here is the case, I got a variable {{comment.id}}, which is a number, 41. How could I combine {{comment.id}} with "#multiCollapseExample" in the href="..." part so it becomes href="#multiCollapseExample41"?

post_detail.html

<a class="btn btn-primary" data-toggle="collapse" href="#multiCollapseExample41" role="button" aria-expanded="false" aria-controls="multiCollapseExample41">reply</a>

Any way out? Thanks!

what if "#multiCollapseExample{{comment.id}}" ?

user8060120
– user8060120

2018-08-28 17:08:45 +00:00
Commented Aug 28, 2018 at 17:08 — user8060120
– user8060120, Commented Aug 28, 2018 at 17:08
@BearBrown, yeah, it works, thanks!

Anote
– Anote

2018-08-29 03:21:46 +00:00
Commented Aug 29, 2018 at 3:21 — Anote
– Anote, Commented Aug 29, 2018 at 3:21

Ian Kirkpatrick · Accepted Answer · 2018-08-28 17:09:52Z

2

Make it:

<a class="btn btn-primary" data-toggle="collapse" href="#multiCollapseExample{{ comment.id }}" role="button" aria-expanded="false" aria-controls="multiCollapseExample{{ comment.id }}">reply</a>

The key here is how template tags work. They literally act as placeholders that will get replaced by a stringified version of the variable in it.

As a side note This replacement happens before the response is returned to the browser.

answered Aug 28, 2018 at 17:09

Ian Kirkpatrick

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Comments

Athena · Accepted Answer · 2018-08-28 17:09:26Z

1

You can just include it directly; Django will fill in the template tags wherever they are, even if they're inside a HTML tag.

So in this case, all you really need to do is this:

<a class="btn btn-primary" data-toggle="collapse" href="#multiCollapseExample{{comment.id}}" role="button" aria-expanded="false" aria-controls="multiCollapseExample41">reply</a>

answered Aug 28, 2018 at 17:09

Athena

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