Rails - Jul 2012 - ActiveRecord::Reflection active_record read-only method

I was horsing around with the reflect_on_assocation class method of
ActiveRecord Reflection, which returns an instance of
AssociationReflection. One of its methods is called active_record. I
run it in console:

Account.reflect_on_association(:users).active_record
 => Account(id: integer, name: string, created_at: datetime,
updated_at: datetime, ancestry: string, street_address: string, city:
string, postal_code: string, state: string, country: string,
street_address2: string, account_type_id: integer, client_logo:
string, subdomain: string, email: string, phone: string)

What it returns is not the Account object.

According to documentation, it "Returns the value of attribute
active_record".


http://rubydoc.info/docs/rails/3.0.0/ActiveRecord/Reflection/MacroReflection#active_record-instance_method


Well, that''s not too informative...

thanks for response

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On Tuesday, July 31, 2012 2:09:41 AM UTC+1, John Merlino
wrote:
>
>
> Account.reflect_on_association(:users).active_record 
>  => Account(id: integer, name: string, created_at: datetime, 
> updated_at: datetime, ancestry: string, street_address: string, city: 
> string, postal_code: string, state: string, country: string, 
> street_address2: string, account_type_id: integer, client_logo: 
> string, subdomain: string, email: string, phone: string) 
>
> What it returns is not the Account object. 
>
> According to documentation, it "Returns the value of attribute 
> active_record". 
>
>
>
>
http://rubydoc.info/docs/rails/3.0.0/ActiveRecord/Reflection/MacroReflection#active_record-instance_method
>
>
> Well, that''s not too informative... 
>
>
> What''s your question (and what the relationship with  your subject
line?) ?
Fred

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I''m saying that active_record called on AssociationReflection seems to
just return the class object itself. For example:

Account.reflect_on_association(:users).active_record # => Account

What''s the point of that? Can''t you just do Account.class?

On Jul 31, 5:42 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On Tuesday, July 31, 2012 2:09:41 AM UTC+1, John Merlino wrote:
>
> > Account.reflect_on_association(:users).active_record
> >  => Account(id: integer, name: string, created_at: datetime,
> > updated_at: datetime, ancestry: string, street_address: string, city:
> > string, postal_code: string, state: string, country: string,
> > street_address2: string, account_type_id: integer, client_logo:
> > string, subdomain: string, email: string, phone: string)
>
> > What it returns is not the Account object.
>
> > According to documentation, it "Returns the value of attribute
> > active_record".
>
>
>http://rubydoc.info/docs/rails/3.0.0/ActiveRecord/Reflection/MacroRef...
>
> > Well, that''s not too informative...
>
> > What''s your question (and what the relationship with  your
subject line?) ?
>
> Fred
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I think, #reflect_on_association is a class method. So it tells you if the 
class has some association and the stuff related to that.

Account.reflect_on_association(:users) will give you some information about 
how the attribute :users is associated with the model Account. Probably, a 
has_many association, I guess.

Now, in most cases, it goes like this:

Account.reflect_on_association(:users).active_record => User

But in your case, the model Account seems to be associated with itself 
through :users. It would be really helpful if you post your models here.

So, to answer your question: Can''t you just do Account.class?
Well, in this special case you could, but in most other cases, not.

Hope this helps.

Ace


On Monday, July 30, 2012 9:09:41 PM UTC-4, John Merlino
wrote:
>
> I was horsing around with the reflect_on_assocation class method of 
> ActiveRecord Reflection, which returns an instance of 
> AssociationReflection. One of its methods is called active_record. I 
> run it in console: 
>
> Account.reflect_on_association(:users).active_record 
>  => Account(id: integer, name: string, created_at: datetime, 
> updated_at: datetime, ancestry: string, street_address: string, city: 
> string, postal_code: string, state: string, country: string, 
> street_address2: string, account_type_id: integer, client_logo: 
> string, subdomain: string, email: string, phone: string) 
>
> What it returns is not the Account object. 
>
> According to documentation, it "Returns the value of attribute 
> active_record". 
>
>
>
>
http://rubydoc.info/docs/rails/3.0.0/ActiveRecord/Reflection/MacroReflection#active_record-instance_method
>
>
> Well, that''s not too informative... 
>
> thanks for response 
>
>
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