#17348: Implement {% elif %} in the template language
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Reporter: aaugustin | Owner: nobody
Type: New feature | Status: new
Component: Template system | Version: SVN
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by aaugustin):
* needs_better_patch: => 0
* version: => SVN
* stage: Unreviewed => Accepted
* needs_tests: => 0
* needs_docs: => 0
Comment:
#3100 is about supporting arguments on intermediate tag tokens, and it's a
pre-requisite for this ticket.
Here are the arguments I saw on IRC.
Pros:
- templates should be able to express presentational logic: for instance,
depending of an object's state, I want to show different properties
- the most straightforward workaround is messy: `{% if a %} ... {% else
%}{% if b %} ... {% else %}{% if c %} ... {% endif %}{% endif %}{% endif
%}`
- a more elaborate workaround involves partial templates, e.g. `{% include
myobj.state_template %}` where state_template returns
`"partials/state_<STATE>.html"`, but that's overkill for simple cases
Cons:
- templates shouldn't contain too much logic — that's a well understood
design choice
- increasing the amount of logic in the templates doesn't help us fight
performance issues
Tentatively marking as accepted, please bump back to DDN if you disagree.
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Ticket URL: <https://code.djangoproject.com/ticket/17348#comment:1>
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