Ruby on Rails Monday, February 28, 2011

Form level validation involving enforcing a relation between two or
more form inputs that may not even be in the model:

I am building a form that will query a range of records between two
dates.

The form ask for a starting data and a ending date.

I want to validate that the user selected a starting data before or
equal to the ending date.

It seems that this validation should happen in the controller, rather
than in the model.

If it should happen in the model, what would be an example?

( a more complex, but maybe idea way would be to do the validation for
this in javascript in the client browser?)

Or if it makes since in the controller, how do I do validation in the
controller?

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