Rails - Mar 2009 - Get model.create(params) to silently skip unknown attributes

Hi,

I have a remote website that will be sending me some data which I want
to save in one of my models. The problem is that it will also send some
attributes such as attribute_1, attribute_2, etc which I don''t want to
save.

Currently if I do:

my_model.create(params), it will not pass as it has hash keys that
don''t
map to any attribute in the model, how to make my model skip these
unknown attributes in a clean manner?
-- 
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On Mar 6, 4:17 pm, Fernando Perez
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> Hi,
>
> I have a remote website that will be sending me some data which I want
> to save in one of my models. The problem is that it will also send some
> attributes such as attribute_1, attribute_2, etc which I don''t
want to
> save.
>
> Currently if I do:
>
> my_model.create(params), it will not pass as it has hash keys that
don''t
> map to any attribute in the model, how to make my model skip these
> unknown attributes in a clean manner?
You''d be better off cleaning up the params hash, eg with something
like

cleaned_params = params.slice(*Model.column_names)

Fred
> --
> Posted viahttp://www.ruby-forum.com/.
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> cleaned_params = params.slice(*Model.column_names)
> 
> Fred
Damn! I was looking for a way to do that, and by default Ruby doesn''t 
offer the slice method for hashes, thanks to you I discovered that it is 
bundled in ActiveSupport!

Thank you very much for your tip.

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