D.C Style - Unique Field v1.0.0

Compatible XF Versions: 2.0 , 2.1 , 2.2
Visible Branding: No

Introduce​

Add the possibility to set a custom field to be "unique", where any new content with this field value will have to be unique.
Currently supported custom field types:

• Thread Custom Fields
• User Custom Fields

Installation​

• Install the add-on.
• Go to AdminCP -> Choose your desired custom field -> Select option "Field is unique".