Validator. Detect repeated values

danielrm79

Hello, i'm using datatables to show a list of ítems. Only one record of the whole list can have the value "yes" for a specific field. The rest of records must have the "no" value for that field. So, if one record have the value "yes" for the field, and i try to set that field to the "yes" value for another one record, the validator must say "Incorrect. Only one record allowed to be "yes". How can i do it with the validator? Thanks.

allan

Assuming you are using the PHP libraries for Editor, the unique() validator is the way to do this. The .NET libraries also have a similar method if you are using them.

Regards,
Allan