Augmenting to_s for ActiveRecord

[John Hinnegan]

So, I have a model, and I've defined some non-persisted attributes. I'd like to augment the to_s to include these in to_s and other output statements (like whatever awesome print is calling).

If possible, I'd like to augment the existing functionality (vs replacing it)?  Is there a standard way to do this?  I can probably figure out how to do this if someone could point me to where to_s is being defined in ActiveRecord.

Thanks,

[Colin Law]

On 3 September 2012 17:27, John Hinnegan <john.h...@gmail.com> wrote:
> So, I have a model, and I've defined some non-persisted attributes. I'd like
> to augment the to_s to include these in to_s and other output statements
> (like whatever awesome print is calling).

What is it that you want to call to_s on? An instance of the model or
the attribute itself? If the attribute then what class it is? If the
model instance then just define to_s in your model class to do
whatever you want.

Colin

>
> If possible, I'd like to augment the existing functionality (vs replacing
> it)? Is there a standard way to do this? I can probably figure out how to
> do this if someone could point me to where to_s is being defined in
> ActiveRecord.
>
> Thanks,
>

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[John Hinnegan]

The model itself.

So right now when you inspect, puts, etc on the model, it shows only the attributes which are persistent. I would like to augment it to also show my non-persisted attributes. This is for debugging purposes only.

I'm guessing somewhere in ActiveModel or ActiveRecord, the to_s is being overridden. Is there a general way I can override so that to_s, inspect, and awesome_print will all show the non-persisted attributes?