I love the Rails framework, but the error messages
just don''t seem to offer the same level of simplicity
and eloquence as the rest of the package.
New to the language, and Rails, I''m just trying to get
a model with a belongs_to another object to
validate_associated -- I''ve written collectively maybe
10 lines of code so far and *this* is the error
message I get... it doesn''t tell me at all where my
problem is w/ respect to the code I''ve just written.
How do I decipher messages like these? Debug my Rails
code and fix my problem?
NoMethodError in Editions#create
undefined method `valid?'' for 1:Fixnum
app/controllers/editions_controller.rb:23:in `create''
Show framework trace
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in
`validates_associated''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in
`all?''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in
`each''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in
`all?''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in
`validates_associated''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:499:in
`validates_each''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:246:in
`each''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:246:in
`validates_each''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:245:in
`call''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:620:in
`run_validations''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:614:in
`each''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:614:in
`run_validations''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:577:in
`valid_without_callbacks''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/callbacks.rb:309:in
`valid?''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:556:in
`save_without_transactions''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:128:in
`save''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:128:in
`transaction''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:93:in
`transaction''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:120:in
`transaction''
/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:128:in
`save''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:708:in
`send''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:708:in
`perform_action_without_filters''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/filters.rb:294:in
`perform_action_without_benchmark''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/benchmarking.rb:37:in
`perform_action_without_rescue''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/benchmarking.rb:37:in
`measure''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/benchmarking.rb:37:in
`perform_action_without_rescue''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/rescue.rb:79:in
`perform_action''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:330:in
`send''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:330:in
`process''
/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:273:in
`process''
/home/web/ruby/lib/ruby/gems/1.8/gems/rails-0.12.1/lib/dispatcher.rb:32:in
`dispatch''
dispatch.cgi:10
Request
Parameters: {"submit"=>"Create",
"edition"=>{"name"=>"asdf",
"number"=>"1",
"newsletter_id"=>"1",
"published_at(1i)"=>"2005",
"published_at(2i)"=>"6",
"published_at(3i)"=>"9",
"published_at(4i)"=>"12",
"published_at(5i)"=>"10"}}
Show session dump
---
flash: !ruby/hash:ActionController::Flash::FlashHash
{}
Response
Headers: {"cookie"=>[],
"Cache-Control"=>"no-cache"}
Show template parameters
__________________________________
Discover Yahoo!
Stay in touch with email, IM, photo sharing and more. Check it out!
http://discover.yahoo.com/stayintouch.html
> app/controllers/editions_controller.rb:23:in `create''That''s the best it can do to tell you where the error is. The "metaprogramming" macros provide by rails (associations, validations, acts_as, and so on) don''t have validation code to ensure that you''re using them correctly, so if you screw up in one of those, your actual error message will quite often show up somewhere else. However, you can get a good idea of what''s going on from the error message:> undefined method `valid?'' for 1:FixnumApparently, the method "valid?" is getting called on an object that is a Fixnum, and fixnum doesn''t have a valid? method. Why would that be? I''m just guessing, but I''d suspect that you''re doing something like validates_associated :person_id instead of validates_associated :person Tyler
Adrian Madrid
2005-Jun-09 19:28 UTC
Re: why are rails error messages so hard to understand?
I believe you have an error with a method "valid?" in line 23 of app/controllers/editions_controller.rb That sounds to me like a controller you created/modified. Hope that helps, Adrian Madrid Hal Robertson wrote:>I love the Rails framework, but the error messages >just don''t seem to offer the same level of simplicity >and eloquence as the rest of the package. > >New to the language, and Rails, I''m just trying to get >a model with a belongs_to another object to >validate_associated -- I''ve written collectively maybe >10 lines of code so far and *this* is the error >message I get... it doesn''t tell me at all where my >problem is w/ respect to the code I''ve just written. >How do I decipher messages like these? Debug my Rails >code and fix my problem? > > > > NoMethodError in Editions#create > >undefined method `valid?'' for 1:Fixnum > >app/controllers/editions_controller.rb:23:in `create'' > >Show framework trace > >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in >`validates_associated'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in >`all?'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in >`each'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in >`all?'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:500:in >`validates_associated'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:499:in >`validates_each'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:246:in >`each'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:246:in >`validates_each'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:245:in >`call'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:620:in >`run_validations'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:614:in >`each'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:614:in >`run_validations'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:577:in >`valid_without_callbacks'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/callbacks.rb:309:in >`valid?'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/validations.rb:556:in >`save_without_transactions'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:128:in >`save'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:128:in >`transaction'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:93:in >`transaction'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:120:in >`transaction'' >/home/web/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/transactions.rb:128:in >`save'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:708:in >`send'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:708:in >`perform_action_without_filters'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/filters.rb:294:in >`perform_action_without_benchmark'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/benchmarking.rb:37:in >`perform_action_without_rescue'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/benchmarking.rb:37:in >`measure'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/benchmarking.rb:37:in >`perform_action_without_rescue'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/rescue.rb:79:in >`perform_action'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:330:in >`send'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:330:in >`process'' >/home/web/ruby/lib/ruby/gems/1.8/gems/actionpack-1.8.1/lib/action_controller/base.rb:273:in >`process'' >/home/web/ruby/lib/ruby/gems/1.8/gems/rails-0.12.1/lib/dispatcher.rb:32:in >`dispatch'' >dispatch.cgi:10 > > > >Request > >Parameters: {"submit"=>"Create", >"edition"=>{"name"=>"asdf", "number"=>"1", >"newsletter_id"=>"1", "published_at(1i)"=>"2005", >"published_at(2i)"=>"6", "published_at(3i)"=>"9", >"published_at(4i)"=>"12", "published_at(5i)"=>"10"}} > >Show session dump > >--- >flash: !ruby/hash:ActionController::Flash::FlashHash >{} > >Response >Headers: {"cookie"=>[], "Cache-Control"=>"no-cache"} > >Show template parameters > > > >__________________________________ >Discover Yahoo! >Stay in touch with email, IM, photo sharing and more. Check it out! >http://discover.yahoo.com/stayintouch.html >_______________________________________________ >Rails mailing list >Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org >http://lists.rubyonrails.org/mailman/listinfo/rails > > >-- Adrian Madrid HyperX Inc. Mobile: 801.815.1870 Office: 801.566.0670 aemadrid-kSB444ljgzMmlAP/+Wk3EA@public.gmane.org www.hyperxmedia.com 9000 S. 45 W. Sandy, UT 84070 _______________________________________________ Rails mailing list Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org http://lists.rubyonrails.org/mailman/listinfo/rails
On 6/9/05, Tyler Kiley <tyler.kiley-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > undefined method `valid?'' for 1:Fixnum > > Apparently, the method "valid?" is getting called on an object that is > a Fixnum, and fixnum doesn''t have a valid? method. Why would that be? > I''m just guessing, but I''d suspect that you''re doing something like > > validates_associated :person_id > > instead of > > validates_associated :personIf I had to guess I''d say he''s calling the "save" method (which calls valid? as part of the saving process), but accidentally calling it on a fixnum than on the actual activerecord object that he wants to save. Not necessarily that he has code that looks like "1.save" or anything, more likely he''s just got a variable like "foobar.save", and somewhere foobar is accidentally being set to a fixnum instead of the intended AR object. Like if he''s calling a method before that and it''s not returning the value that he expects it to return. I''d like to see the code of the "create" method in this controller in order to further troubleshoot this problem. -- Urban Artography http://artography.ath.cx
If that''s the case, Fixnum would have to respond_to #save, which I believe is not defined in Fixnum by default unless Rails extended it. Chris On Jun 11, 2005, at 2:22 PM, Rob Park wrote:> On 6/9/05, Tyler Kiley <tyler.kiley-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > >>> undefined method `valid?'' for 1:Fixnum >>> >> >> Apparently, the method "valid?" is getting called on an object >> that is >> a Fixnum, and fixnum doesn''t have a valid? method. Why would that >> be? >> I''m just guessing, but I''d suspect that you''re doing something like >> >> validates_associated :person_id >> >> instead of >> >> validates_associated :person >> > > If I had to guess I''d say he''s calling the "save" method (which calls > valid? as part of the saving process), but accidentally calling it on > a fixnum than on the actual activerecord object that he wants to save. > Not necessarily that he has code that looks like "1.save" or anything, > more likely he''s just got a variable like "foobar.save", and somewhere > foobar is accidentally being set to a fixnum instead of the intended > AR object. Like if he''s calling a method before that and it''s not > returning the value that he expects it to return. > > I''d like to see the code of the "create" method in this controller in > order to further troubleshoot this problem. > > -- > Urban Artography > http://artography.ath.cx > _______________________________________________ > Rails mailing list > Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org > http://lists.rubyonrails.org/mailman/listinfo/rails >