Rails - Jan 2012 - Find all association methods

Hi all,


I want to get all association methods in one single model....

Any default method is provided by Active Record ???

i am using ruby 1.9.3 and rails 3.1.3

Please reply me ....


Thanks,

kingston.s

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On 17 January 2012 06:41, Kingston.s
<jenorish-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi all,
>
>
> I want to get all association methods in one single model....
What do you mean "get" the methods?

Colin
>
> Any default method is provided by Active Record ???
>
> i am using ruby 1.9.3 and rails 3.1.3
>
> Please reply me ....
>
>
> Thanks,
>
> kingston.s
>
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On Tue, Jan 17, 2012 at 7:41 AM, Kingston.s
<jenorish-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Hi all,
>
>
> I want to get all association methods in one single model....
>
> Any default method is provided by Active Record ???
>
> i am using ruby 1.9.3 and rails 3.1.3
>

User.reflect_on_all_associations.map{|a| [a.macro,a.name]}

etc.

Peter

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On Jan 17, 7:08 pm, Peter Vandenabeele
<pe...-jNuWw7i2w7syMbTcgqFhxg@public.gmane.org>
wrote:
> On Tue, Jan 17, 2012 at 7:41 AM, Kingston.s
<jenor...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > Hi all,
>
> > I want to get all association methods in one single model....
>
> > Any default method is provided by Active Record ???
>
> > i am using ruby 1.9.3 and rails 3.1.3
>
> User.reflect_on_all_associations.map{|a| [a.macro,a.name]}
>
> etc.
>
> Peter
>
> --
> Peter Vandenabeelehttp://twitter.com/peter_vhttp://rails.vandenabeele.com
Hi Peter,

Thanks for quick reply..

This is working fine.but it is return all the association and the
corresponding model name....

like  [:has_many, :site_users]

but i want  association methods like  site_user_ids and site_user_ids

kingston.s

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On Wed, Jan 18, 2012 at 5:49 AM, Kingston.s
<jenorish-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Jan 17, 7:08 pm, Peter Vandenabeele
<pe...-jNuWw7i2w7syMbTcgqFhxg@public.gmane.org> wrote:
> > On Tue, Jan 17, 2012 at 7:41 AM, Kingston.s
<jenor...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > Hi all,
> >
> > > I want to get all association methods in one single model....
> >
> > > Any default method is provided by Active Record ???
> >
> > > i am using ruby 1.9.3 and rails 3.1.3
> >
> > User.reflect_on_all_associations.map{|a| [a.macro,a.name]}
> >
> > etc.
> >
> > Peter
> >
> > --
> > Peter Vandenabeelehttp://
> twitter.com/peter_vhttp://rails.vandenabeele.com
>
> Hi Peter,
>
> Thanks for quick reply..
>
> This is working fine.but it is return all the association and the
> corresponding model name....
>
> like  [:has_many, :site_users]
>
> but i want  association methods like  site_user_ids and site_user_ids>
Hmmm, I don''t see them in that datastructure. I presume they are
defined
automatically, based on the name of the association, in this code starting
at:

https://github.com/rails/rails/blob/master/activerecord/lib/active_record/associations/builder/collection_association.rb#L57

In general ... I think it is better not to touch the _id fields manually
and
use other association methods (without _id) if possible. E.g. the
''build'' or ''delete'' functions on the
has_many association.

HTH,

Peter

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