Display warning massage on saving continuous job

Assigning to me.

Created patch.

I'm wondering if we're not somehow over-engineering this.

See #2679455: Add help text for overview (job, continuous job, job items, sources). As a first step, I would just add a help text for this URL, explain shortly what continuous jobs are and how they work.

Something like:

Continuous jobs allow to automatically and continuously submit all new and updated content to the configured translator. Each job has a specific language pair, multiple jobs can be created to translate into and from different languages. Only sources that match the configuration are considered, not selecting anything means that nothing will be translated with this job.

Then lets evaluate if we still need warning messages.

Added help text for continuous jobs overview.

The help text is for the overview now. I meant to add that to the add form.

Help text moved to the add form.

Updating summary.
IMHO not saving is no healthy option.

And yeah, it was about usability and simplicity.
The idea was not to add complex logic to build this..

> IMHO not saving is no healthy option.

Not sure what you are saying.

IMHO, just the help text is enough, we don't need anything else.

+++ b/tmgmt.module
@@ -1225,3 +1226,15 @@ function tmgmt_page_attachments(array &$attachments) {
+    case 'entity.tmgmt_job.continuous_add_form':
+      $output = '<h3>' . t('About continuous jobs') . '</h3>';
+      $output .= '<p>' . t('Continuous jobs allow to automatically and continuously submit all new and updated content to the configured translator. Each job has a specific language pair, multiple jobs can be created to translate into and from different languages. Only sources that match the configuration are considered, not selecting anything means that nothing will be translated with that job.') . '</p>';

not sure if we need a header, takes away a lot of space and it should be pretty clear what this is about I think.

Removed header and warning message.

Re-rolled patch from #11.

Still applies. Looks good!

Thanks, committed.