I want to be able to validate the fields on a form using the same rules
that are used to validate the domain object that represents those
Rules ..without having to check each single field that is input with
the idea to be able to validate a single field without having to create
the whole domain
Object.
Example:
If we have a domain object say
Patron
String Name
String phoneNumber
And you have a form with the fields represented as Strings in a request.
Name
PhoneNumber
And if the user enters his phone number I just want to run the rule
about phonenumber without firing the rule for name.
The first idea was to create a class for each form field which would
leverage the power of the rule engine for example:
When
Patron(phoneNumber not matches " \(?\d{3}\)?
?\d{3}[-.]\d{4}")
||
PhoneNumber(value not matches " \(?\d{3}\)? ?\d{3}[-.]\d{4}"
Then
InsertLogical(Message("Bad Phone")
But that would mean creating a class for each field, which just seems
wrong.
Is there a better design?
Blair Christie
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