Why getting error: Object#id will be deprecated; use Object#object_id

Question

On my local development rails environment, I am able to check the output from a SOAP call just fine.

I can use response.id to get the value from this packet displayed using the .inspect method:

#<SOAP::Mapping::Object:0x15702d0c0604 {}id="dd26ce5f-0cfd-9bbb-3485-4c64c9d6378
4" {}error=#<SOAP::Mapping::Object:0x15702d0bf6f0 {}number="0" {}name="No Error"
 {}description="No Error">>

HOWEVER, when I push it up to heroku, I get this error:

/disk1/home/slugs/212074_6b040a6_5c2e/mnt/app/controllers/sugarcrm_controller.rb
:77: warning: Object#id will be deprecated; use Object#object_id

Driving me crazy to understand the discrepancy.

Suggestions?

Answer 1

You're probably used to ActiveRecord based objects and this object doesn't look like it's based off of ActiveRecord. id is soon to be deprecated, and object_id is a method on a Ruby object.

This doesn't mean that id on ActiveRecord is going to be deprecated, just on "plain old Ruby objects".

Answer 2

I believe you may have a bug in your code, which is why that warning is thrown. Object#id is most often invoked when you are inadvertently calling id on an object you weren't expecting, like nil:

>> nil.id
(irb):1: warning: Object#id will be deprecated; use Object#object_id
 => 4 

If the object has an id method, a warning is not thrown. So, assuming it works locally (and this SOAP object does have an id method), the only way you should be getting this warning is if it is a different kind of object.

Thus, are you absolutely sure the object you expected is being returned? Try adding:

logger.info ">>> SOAP OBJECT: " + object.inspect

Or add some explicit error handling / object checking:

unless object.is_a?(SOAP::Mapping::Object)
  raise ArgumentError, "did not get SOAP object"
end

At least then you will know something has gone wrong.