How to use OR operator in find method?

how could I use something like this:

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@comments = @company.comments.where(:approved => true).or(:ip => request.remote_ip).all

Should I have to install any specific gem for doing this?

I using rails 3.0.4 and mysql2.

Thanks.

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See the "Conditions" section in the documentation, where it explains using multiple parameters in the conditions. Your query would be written:

@comments = @company.comments.where('approved = ? OR ip = ?', true, request.remote_ip).all