[FORMS] DatetimeField not supported in Firefox or IE

[JorisDebonnet]

Affected Version

4.1.0

Description

I am using silverstripe/blog, and notice that I do not get a dialog to fill in the PublishDate. The input uses type datetime-local, but this is not supported in Firefox (it's only supported in Chrome and Edge). The input says "03/26/2018 3:01 AM", and I can in fact update it if I use the same format, but that's not a native format to me, so I'm not sure where it's coming from. Perhaps it is a fallback mechanism using php interpretation?

I do notice that it has a hidden field which stores the actual PublishDate, and another field that is visible, so I guess there's javascript going on as well. So my suggestion is to check for browser support for datetime(-local), and if it's not there, separate the date and time into two inputs, and merge them together into the hidden input.

Any case, right now, it is a confusing experience.

[dhensby]

I'm sure this had been raised and/or considered by @chillu and @tractorcow - I can't find the issue now, though

[chillu]

There's a lot of background discussion on #6626

Firefox has implement HTML5 date and HTML5 time fields, but not datetime (Chrome and Edge have datetime support). I agree that it's an issue, although I was hoping that Firefox simply took some time to catch up with other browsers, but there's been no movement on the bug report in five months...

I think for now, set your i18n.date_format and i18n.time_format to values that your authors can type out (e.g. not am/pm). We've invested weeks of dev time into i18n in SilverStripe 4 already, I don't think this will come up on our backlog soon.

[chillu]

@bergice Could you check if that's been fixed by your recent work on date fields?

[bergice]

@chillu yes, except it has not been merged yet.

I'm closing this as it duplicates silverstripe/silverstripe-admin#723