DataMapper ORM v1.8.0

[eluser]WanWizard[/eluser]
[quote author="Hakkai" date="1337757968"]is there any solution for me to repopulate the form after validation has failed?

set_value is not functioning.[/quote]
You're not validating form values, you're validating a Datamapper object.

Which doesn't have any relation to a form, unlike CI's Form validation, which as the name implies validates form data (and knows what came from the form, so it can re-populate).

I you want to work with DM validation as primary means of validation, you'll have to setup your controller logic differently, and use a DM object as the basis.

So in a create method
- create a new object
- populate it with default values if needed
- assign it to the view
- in the view use $object->fieldname to add the field value to the HTML (or form methods used)

If the form was submitted the flow is
- create a new object
- populate it with the values from the form
- run the validation
- if validated, save and redirect away from the create method
- if not, assign the object to the view

For edit you don't start with an empty object, but you'll get the one to edit. Otherwise the procedure is the same.