Skip to main content

Ensuring a CCK field has unique values

An article from ComputerMinds - Building with Drupal in the UK since 2005.
27th Jan 2009

Steven Jones

Senior Developer

Super quick one this: say you have a CCK field on a particular node whose values you want to ensure are unique across all nodes on your site, you could write yourself a nice little helper module, or some PHP directly into the CCK field validation section of the admin form, but, a helper module already exists! Unique field is a lovely little module that allows you to say that a particular text, number or date field should have unique values across the site, or indeed in that node.

I used this on a user's profile node for a 'alias' field, thus ensuring that everyone chose unique aliases!

Hi, thanks for reading

ComputerMinds are the UK’s Drupal specialists with offices in Bristol and Coventry. We offer a range of Drupal services including Consultancy, Development, Training and Support. Whatever your Drupal problem, we can help.