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Asked: 2026-06-06T10:55:40+00:00

I require different behavior from ActiveRecord::AttributeAssignment.assign_attributes(new_attributes, options). For my entire web application, I want

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I require different behavior from ActiveRecord::AttributeAssignment.assign_attributes(new_attributes, options).

For my entire web application, I want to evaluate [and frequently overwrite] new_attributes. (I want to do this to support third party UI widgets which do not follow rails form naming conventions). Although this might be a bit stinky, I can write the patch to only activate if the call did come from the third party form.

I have written a patch and can override the normal behavior; however, I’m wondering if it is possible to call the original method from within my patch?

Of course I can just cut and paste the original assign_attributes into my patch. Is there a better way?

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1 Answer

  1. Editorial Team

    alias_method_chain exists for this exact situation.

    It’s not always the right choice, but works well when you have a fitting use case, which this one looks to be.

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