Hi,
I''m new to rails and so far think it''s great, but I''m
having some
major issues with a many-through relationship.
There are three tables:
reporttemplates
articlestemplates_reporttemplates (additional attribute "optional")
articletemplates
They are connected to each other via has_many and through + belongs_to
in articlestemplates_reporttemplates.
Now, I need to display all articletemplates and show, if there is a
connection (entry in articlestemplates_reporttemplates) to the current
reporttemplate. So in the controller I call
@articletemplates = Articletemplate.find(:all, :joins=>"LEFT JOIN
articletemplates_reporttemplates ON
`articletemplates_reporttemplates`.articletemplate_id `articletemplates`.id
WHERE
`articletemplates_reporttemplates`.reporttemplate_id = "+params[:id])
So far, everything is working. When I call
<% puts YAML::dump(articletemplate.articletemplates_reporttemplates)
%>
in the view, it gives me:
- !ruby/object:ArticletemplatesReporttemplate
attributes:
created_at: 2008-12-16 17:24:19
optional: "0"
updated_at: 2008-12-16 17:24:19
id: "1"
reporttemplate_id: "1"
articletemplate_id: "1"
attributes_cache: {}
But when I try to access the attribute "optional", I always get an
error message!
<% if articletemplate.articletemplates_reporttemplates.optional == 0
%>
leads to
"undefined method `optional'' for
#<Class:0x7f83e7451880>"
Why does it tell me "undefined", when one line above it tells me there
is an attribute "optional"?
Any help is appreciated!
Best Regards,
Daniel Süpke
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c''mon guys, don''t leave me hanging on my very first rails question here ;). It''s basically just: How can the debug output give tell me something is an object with attributes and then it doesn''t let me access this attributes? Maybe it''s a bug. Well, if no one has a clue I will try to find a bug tracker and post it there, but it''s probably just my lack of knowledge in ruby/rails. Regards, Daniel Süpke --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
On 18 Dec 2008, at 16:22, Daniel Süpke wrote:> But when I try to access the attribute "optional", I always get an > error message! > <% if articletemplate.articletemplates_reporttemplates.optional == 0 > %> > leads to > "undefined method `optional'' for #<Class:0x7f83e7451880>" > > Why does it tell me "undefined", when one line above it tells me there > is an attribute "optional"? >Assuming you''re using the normal conventions, articletemplates_reporttemplates is an array. it doesn''t have an optional attribute (but the elements inside it do) Fred> Any help is appreciated! > > Best Regards, > Daniel Süpke > > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Thanks a bunch, that helped. Didn''t know that "---" is meant to represent an array, YAML::dump could be more intuitive there. It only told me "object", so I never even thought of an array. Well, now it works, so thanks again! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---