CiviCRM Community Forums (archive)

My question is related to the Swedish personnummer (Personal identity number), that is a important number in sweden. But the question could be more general in the way that I want to create my own data field but it need to have a validation, that validate in my case that the Personnummer is correct.

Yes that is possible(it is unique), I also could define a custom number field or date. the Personnummer is on the form YYYYMMDD-XXXX. The problem is that I havent figured out how to create a module/plugin? or something like that not  sure what it is called in civiCRM, that validate the number. I want user to write their Personal identity number when appling for membership and registering on a drupal site.

The algorithm for the validation is easy implemented in PHP but I havent figured out where to put it. aka custom Validation of custom fields. or validation of external identifier.

I am a bit stuck, Dont really know where to start. I have read all the development blogs. Is there a some sort of guide like drupal module guide for CiviCRM?

I got another Ideéa Personnr is just an extended date of birth so perhaps thats a better ideéa to extend date of birth with the trailing uniqe numbers. I have been looking in the sql and there is a validation table and a validation_id in the civicrm_custom_field. Is this for use in the future?

I also have notice a strange thing that I think is related to date print out. I have created custom field for a test in my drupal both of Number and Alphanumeric data type and field typ is text.
Then i input a dummy number 190712032456  the numbers is showing up and looking nice every where in civicrm. But I have added them to a profile that shows up in the User account page. But on that page the number is totaly different 2147483647.

I have tested some more and I see a connection with the number lenght.  1907120324 seemse to show up correct but if I ad one digit (19071203241) it shows up as 2147483647.

I have Drupal 5.2 and CiviCRM 1.8.beta.10790

I will try contact you later on IRC

Has it already found its way on 2.0 ?

Otherwise, still sound like a nice idea indeed (suggestion: putting a place where we can share custom datatype, eg an IBAN validator)