Control Panel not showing dates or date/time pickers in user's locale

[juresrpcic]

Description

I have a few date fields in the CP (date pickers only, no time). Despite having a default locale set in config\general.php:

'defaultCpLanguage' => 'en_gb',

and also all users having selected their locale to "English (United Kingdom)", all date fields still show US formatting (month/date/year). The same formatting is shown when viewing date field as a custom column in CP lists.

Is there another place where I could set date fields to follow a selected locale? Ideally, they'd follow what the user has set.

I also tried changing my user's locale to German - everything changed in the CP except for dates which are still en_us formatted.

Steps to reproduce

1. Create a date field
2. Set user's locale to non-US
3. See that dates and date pickers in CP still formated to US date
4. Despair at US date formatting

Additional info

• Craft version: 3.0.0-RC10.1
• PHP version: PHP 7.1.10 (cli) (built: Oct 4 2017 08:54:01)
• Database driver & version: MySQL 5.7.19
• Plugins & versions: A fair few

[brandonkelly]

I wasn’t able to reproduce this so I can’t say for sure, but noticed some issues with that defaultCpLanguage config setting implementation that could have been the culprit. Just fixed them in b17c61b.

Can you try changing your craftcms/cms version requirement in composer.json to "dev-develop as 3.0.0-RC99", and then run composer update and let me know if it works for you now?

[juresrpcic]

I updated to latest dev-develop version but still have the same issue. Should I submit an issue and include logs/db?

Thanks.

[juresrpcic]

Update - tried uninstalling plugins one-by-one and discovered that Matrix Colors are causing this. If I disable that plugin, everything behaves again (can also change to German time properly). Still works if I rollback to 3.0.0-RC10.1.

I'll report this as an issue on https://github.com/doublesecretagency/craft-matrixcolors . @lindseydiloreto

[brandonkelly]

Ah very strange. @lindseydiloreto let me know if you need help debugging.

[lindseydiloreto]

Strange indeed. Thanks guys, I'll follow up with this on the Matrix Colors repo. 👍

doublesecretagency/craft-matrixcolors#11

[lindseydiloreto]

So it turns out this might be a Craft bug after all, @brandonkelly.

Steps to reproduce:

1. Create a plugin which uses an Asset Bundle.
2. Add the following to the Asset Bundle...

use craft\web\assets\cp\CpAsset;

And within the init method...

$this->depends = [CpAsset::class];

3. Notice that all dates in the CP are being forced to US format.

[brandonkelly]

Thanks @lindseydiloreto! All fixed now for the next release.

[lindseydiloreto]

Awesome, thanks @brandonkelly!