# DAH, using the 'id' property on an object. Get around ruby **URL:** \ **Category:** Ruby\ **Created:** [September 10, 2007, 1:27am UTC](https://www.ruby-forum.com/t/dah-using-the-id-property-on-an-object-get-around-ruby/114212 "2007-09-10T01:27:08Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![ktheory](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/e480ec/32.png) [@ktheory](https://www.ruby-forum.com/u/ktheory)\ **Post date:** [September 10, 2007, 1:27am UTC](https://www.ruby-forum.com/t/dah-using-the-id-property-on-an-object-get-around-ruby/114212/1 "2007-09-10T01:27:08Z")
DAH, I keep running into issues with using the ID property on an object. What is the correct way to use the ID property on an object, without pissing Ruby off? In my app I need to be able to use the id property on any object. Mostly Object/OpenStruct’s. I’ve had a couple things working but then I run into a situation where it doesn’t work correctly. Any ideas? ---
**Author:** ![ktheory](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/e480ec/32.png) [@ktheory](https://www.ruby-forum.com/u/ktheory)\ **Post date:** [September 10, 2007, 1:40am UTC](https://www.ruby-forum.com/t/dah-using-the-id-property-on-an-object-get-around-ruby/114212/2 "2007-09-10T01:40:29Z")
On Sep 9, 4:27 pm, Aaron S. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > DAH, I keep running into issues with using the ID property on an object. > What is the correct way to use the ID property on an object, without > pissing Ruby off? In my app I need to be able to use the id property on > any object. Mostly Object/OpenStruct’s. I’ve had a couple things working > but then I run into a situation where it doesn’t work correctly. Any > ideas? Level 1: obj.object\_id Level 2: obj.send(:object\_id) Level 3: Object.instance\_method(:object\_id).bind(obj).call Voyage to the depth you require. T. ---
**Author:** ![ktheory](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/e480ec/32.png) [@ktheory](https://www.ruby-forum.com/u/ktheory)\ **Post date:** [September 11, 2007, 5:37am UTC](https://www.ruby-forum.com/t/dah-using-the-id-property-on-an-object-get-around-ruby/114212/3 "2007-09-11T05:37:24Z")
Trans wrote: > Level 1: > > obj.object\_id Level 1.5: obj. **id** Unlike object\_id, redefining **id** causes a warning. I’ve run into a case (with rails) where proxy objects forward the object\_id method but not the **id** method. Daniel ---
**Author:** ![ktheory](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/e480ec/32.png) [@ktheory](https://www.ruby-forum.com/u/ktheory)\ **Post date:** [September 11, 2007, 7:58am UTC](https://www.ruby-forum.com/t/dah-using-the-id-property-on-an-object-get-around-ruby/114212/4 "2007-09-11T07:58:33Z")
On 9/10/07, Aaron S. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > DAH, I keep running into issues with using the ID property on an object. > What is the correct way to use the ID property on an object, without > pissing Ruby off? In my app I need to be able to use the id property on > any object. Mostly Object/OpenStruct’s. I’ve had a couple things working > but then I run into a situation where it doesn’t work correctly. Any > ideas? class Object undef\_method(:id) end Haven’t had any issues with this so far, and it’s deprecated anyway. ^ manveru ---
**Author:** ![ktheory](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/e480ec/32.png) [@ktheory](https://www.ruby-forum.com/u/ktheory)\ **Post date:** [September 11, 2007, 9:17am UTC](https://www.ruby-forum.com/t/dah-using-the-id-property-on-an-object-get-around-ruby/114212/5 "2007-09-11T09:17:57Z")
Michael F. wrote: > On 9/10/07, Aaron S. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > DAH, I keep running into issues with using the ID property on an object. > > What is the correct way to use the ID property on an object, without > > pissing Ruby off? In my app I need to be able to use the id property on > > any object. Mostly Object/OpenStruct’s. I’ve had a couple things working > > but then I run into a situation where it doesn’t work correctly. Any > > ideas? > > class Object > undef\_method(:id) > end > > Haven’t had any issues with this so far, and it’s deprecated anyway. > > ^ manveru That should work perfectly. Thanks.