Problem/Motivation
If a datetime field is invalid, the error message is too generic. It is unclear what field is incorrect, especially if there are multiple datetime fields on the entity (color alone is not sufficient).
This is a bug because
- Incorrect or misleading user interface text
and would qualify for an 8.1.x minor release.
Proposed resolution
Update error message for invalid datetime fields to include the field label.
Remaining tasks
Add test coverage for date-only fields.
User interface changes
Better error messages for invalid datetime fields.
API changes
None.
Data model changes
None.
Original Report
The validation handler for datelist \Drupal\Core\Datetime\Element\Datelist::validateDatelist form element has wrong error messages.
$form_state->setError($element, t('The %field date is required.'));
and
$form_state->setError($element, t('The %field date is invalid.'));