Should my validator have access to my entire model?
- by wb
As the title states I'm wondering if it's a good idea for my validation class to have access to all properties from my model. Ideally, I would like to do that because some fields require 10+ other fields to verify whether it is valid or not. I could but would rather not have functions with 10+ parameters. Or would that make the model and validator too coupled with one another? Here is a little example of what I mean. This code however does not work because it give an infinite loop!
Class User
Private m_UserID
Private m_Validator
Public Sub Class_Initialize()
End Sub
Public Property Let Validator(value)
Set m_Validator = value
m_Validator.Initialize(Me)
End Property
Public Property Get Validator()
Validator = m_Validator
End Property
Public Property Let UserID(value)
m_UserID = value
End property
Public Property Get UserID()
UserID = m_Validator.IsUserIDValid()
End property End Class
Class Validator
Private m_User
Public Sub Class_Initialize()
End Sub
Public Sub Initialize(value)
Set m_User = value
End Sub
Public Function IsUserIDValid()
IsUserIDValid = m_User.UserID > 13
End Function End Class
Dim mike : Set mike = New User
mike.UserID = 123456 mike.Validator = New Validator
Response.Write mike.UserID
If I'm right and it is a good idea, how can I go a head and fix the infinite loop with the get property UserID?
Thank you.
