Bugfix/11405 temp uploads location restriction

[i-just]

Description

If your tempUploadsLocation is set to a volume, don’t allow that volume to be selected in any Assets field.

• adds validation rule to the Assets field that’ll check and prevent the field from being saved if the volume that’s selected as tempUploadsLocation is used as a source/sources, including selecting the “All” option, the default upload location source and restricted location source;
• adds a warning to the Control Panel > Settings > Assets > Settings, under Temp Uploads Location

Please note that the volume set as tempUploadsLocation will still show on the list of available volumes when defining an Assets field. That’s because of the “All” option that’s stored in the settings of the field as *.

This should help with the issues described in #11405 until a full solution is introduced in Craft 5.

Related issues

#11405