Difference between save() and valid() in terms of validation

[Mohamad El-Husseini]

What's the difference between using valid() and save()?

If I read correctly, it's not possible to validate data unless you are
using the save() function, correct? So what's the use of the valid()?

This also means it's not possible to validate information before
committing it into the session scope correct?

[raulriera]

valid() will inspect the data to see if its valid and that's it,
save() will do it and save it to the database afterwards

[Chris Peters]

Raul's description below is correct. One thing worth noting is that to even have a model to run validations on, there must be an underlying database table for Wheels to introspect.

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[Mohamad El-Husseini]

Thanks for the explanation. Is it possible then to use the same
validation functions (validatesPresenceOf().... etc...) when using
valid(), or are those only available when saving to the model?

On Sep 1, 3:06 pm, Chris Peters <ch...@clearcrystalmedia.com> wrote:
> Raul's description below is correct. One thing worth noting is that to even
> have a model to run validations on, there must be an underlying database
> table for Wheels to introspect.
>

> On Wed, Sep 1, 2010 at 1:26 PM, raulriera <rierar...@gmail.com> wrote:
> > valid() will inspect the data to see if its valid and that's it,
> > save() will do it and save it to the database afterwards
>
> > On Sep 1, 7:24 pm, Mohamad El-Husseini <abitdo...@hotmail.com> wrote:
> > > What's the difference between using valid() and save()?
>
> > > If I read correctly, it's not possible to validate data unless you are
> > > using the save() function, correct? So what's the use of the valid()?
>
> > > This also means it's not possible to validate information before
> > > committing it into the session scope correct?
>
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> > .

[raulriera]

Those are exactly what valid() validates (sorry about that) against

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[Mohamad El-Husseini]

Why sorry? That's awesome. That means I can use valid() to validate
data and store it in the session, then copy it to the tables when I'm
ready, no? That's awesome!

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