Rails - Mar 2007 - validates_presence_of?

I have a situation in which I would like it to be possible to create a
user. But also allow an administrator to modify certain values
associated with that user (username, email, privileges).  I have
created my own authentication system based on an example I found.

My problem is that currently I am validating the presence of all the
fields in the table (for new user creation).  What would be the best
way to have it not worry about some fields (password and confirm for
example) when modifying?  I don''t want the admin to have access to
user passwords.

Thanks,
Glen


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Thanks,  actually I saw that in the api but it didn''t click with me.

On Mar 14, 2:42 pm, Philip Hallstrom
<r...-SUcgGwS4C16SUMMaM/qcSw@public.gmane.org>
wrote:
> > I have a situation in which I would like it to be possible to create a
> > user. But also allow an administrator to modify certain values
> > associated with that user (username, email, privileges).  I have
> > created my own authentication system based on an example I found.
>
> > My problem is that currently I am validating the presence of all the
> > fields in the table (for new user creation).  What would be the best
> > way to have it not worry about some fields (password and confirm for
> > example) when modifying?  I don''t want the admin to have
access to
> > user passwords.
>
> You can add ":on => :create" where :create can be :update as
well.. that
> lets you "split" up your validations...

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> I have a situation in which I would like it to be possible to create a
> user. But also allow an administrator to modify certain values
> associated with that user (username, email, privileges).  I have
> created my own authentication system based on an example I found.
>
> My problem is that currently I am validating the presence of all the
> fields in the table (for new user creation).  What would be the best
> way to have it not worry about some fields (password and confirm for
> example) when modifying?  I don''t want the admin to have access to
> user passwords.
You can add ":on => :create" where :create can be :update as well..
that
lets you "split" up your validations...

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