time_tag helper doesn't use Y-m-d format for date

[NARKOZ]

helper.time_tag Item.first.created_at.to_date
# => "<time datetime=\"2013-02-14T00:00:00+00:00\">February 14, 2013</time>"

I expected:

<time datetime="2013-02-14">February 14, 2013</time>

as in docs.

[senny]

I'll take a look at it and report back.

[senny]

I can reproduce the described report. The question now is, is the code wrong or the documentation. After a little investigation I found:

• There was a bug report on ruby core because Date#rfc339 did not include the time.
• the HTML standard allows both, times and dates

The bug reports could mean that the documentation once reflected the actual behavior (Date#rfc339 is used in the assert). We still have two possibilities to fix the problem:

1. Patch the code (change to date format for dates)
2. Patch the docs (keep datetime format for dates)

I'm in favor of 1.) because I don't see why we should include the needless "00:00:00+00:00".

@carlosantoniodasilva @pixeltrix let me know which route to take and I'll submit a patch.

[pixeltrix]

I'd patch it to use to_s(:db) instead of rfc3339. I'd also add a documentation example on how to do a custom datetime attribute as well since it's not readily apparent how you'd do some of the other formats allowed like , e.g:

<%= time_tag "Week #{date.cweek}", :datetime => date.strftime('%G-W%V') %>

<time datetime="2013-W08">Week 8</time>

[senny]

@NARKOZ I see you created a PR, do you want to update it to what @pixeltrix said?

[pixeltrix]

@senny @NARKOZ iso8601 is fine as well - just add the doc change also

[NARKOZ]

I've updated docs

[senny]

I'm closing this since #9334 was merged.