Hi,
I have a rails (2.3.5) project that has two models that are not
ActiveRecord based - one is called Wiki and another is called WebApi.
I have been using this in the past, and it was working. However,
something I did is now causing ArgumentError to be raised when I call
a class method on WebApi from a Wiki class method. Here is the
relevant code:
wiki.rb
class Wiki
def self.get_url phrase=''''
response = WebApi.format_and_call(WIKIPEDIA_URL, phrase) #error
occurs here
...
end
...
end
web_api.rb
class WebApi
def self.format_and_call url_format_string, phrase)
...
end
end
Here is the error I get:
ArgumentError (wrong number of arguments (0 for 1)):
app/models/wiki.rb:7:in `get_url''
On debugging, i notice that the error is coming from a const_missing
triggered by the attempt to access the WebApi object (it has nothing
to do with the Wikipedia Url constant, which is fine). Here is the
debug session:
/(rdb:18) step
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:
91
if [Object, Kernel].include?(self) || parent == self
(rdb:18) step
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/
introspection.rb:31
parent_name ? parent_name.constantize : Object
(rdb:18) step
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/
introspection.rb:8
unless defined? @parent_name
(rdb:18) next
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/
introspection.rb:9
@parent_name = name =~ /::[^:]+\Z/ ? $`.freeze : nil
(rdb:18) next
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
gems/1.8/gems/actionpack-2.3.5/lib/action_controller/rescue.rb:162
rescue_action(exception)
(rdb:18) exception
#<ArgumentError: wrong number of arguments (0 for 1)>
I had initially named the WebApi class as Web, and thought the problem
may be due to a name collision, but I tried different names, and get
the same problem.
I am quite confused, since this seems fairly simple code, and I don''t
know where to look.
I am using devise, and have delayed_job as well in the project, but
not really using it in this case.
Thanks
Anand
--
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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en.
I have tried several things in the last few hours - including branching, ripping out all the files, and adding the code back one bit at a time. I am really out of choices now - one interesting thing - this error seems to occur only on the rails app codepath. When I call the same function from a unit test, it works fine. I did suspect that this was due to some gem being out of sync, as several articles suggested, so I have removed everything except uri, open-uri and nokogiri. It still does repro. Can someone please advise- at this point, any suggestion is useful. Thanks Anand On Jun 23, 9:20 pm, candor <rcan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> Hi, > > I have a rails (2.3.5) project that has two models that are not > ActiveRecord based - one is called Wiki and another is called WebApi. > > I have been using this in the past, and it was working. However, > something I did is now causing ArgumentError to be raised when I call > a class method on WebApi from a Wiki class method. Here is the > relevant code: > > wiki.rb > > class Wiki > def self.get_url phrase='''' > response = WebApi.format_and_call(WIKIPEDIA_URL, phrase) #error > occurs here > ... > end > ... > end > > web_api.rb > > class WebApi > def self.format_and_call url_format_string, phrase) > ... > end > end > > Here is the error I get: > > ArgumentError (wrong number of arguments (0 for 1)): > app/models/wiki.rb:7:in `get_url'' > > On debugging, i notice that the error is coming from a const_missing > triggered by the attempt to access the WebApi object (it has nothing > to do with the Wikipedia Url constant, which is fine). Here is the > debug session: > > /(rdb:18) step > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb: > 91 > if [Object, Kernel].include?(self) || parent == self > (rdb:18) step > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/ > introspection.rb:31 > parent_name ? parent_name.constantize : Object > (rdb:18) step > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/ > introspection.rb:8 > unless defined? @parent_name > (rdb:18) next > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/ > introspection.rb:9 > @parent_name = name =~ /::[^:]+\Z/ ? $`.freeze : nil > (rdb:18) next > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > gems/1.8/gems/actionpack-2.3.5/lib/action_controller/rescue.rb:162 > rescue_action(exception) > (rdb:18) exception > #<ArgumentError: wrong number of arguments (0 for 1)> > > I had initially named the WebApi class as Web, and thought the problem > may be due to a name collision, but I tried different names, and get > the same problem. > > I am quite confused, since this seems fairly simple code, and I don''t > know where to look. > > I am using devise, and have delayed_job as well in the project, but > not really using it in this case. > > Thanks > Anand-- 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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@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.
I got a very ugly workaround to work - I created a fresh project from scratch (no git, no delayed job, no devise, nothing:-)) and added the files in. Then I merged the non-active record models into one (non AR) model. So, all calls are within the same class, and this works. The interesting thing is that the error occurs only where I have calls from one non-AR model to another. When i call a non-AR model from an AR model it works. I dont like this at all, since each of the non-AR models is a separate model for a reason (at the least to share common code). Also, i checked out an old branch that had the same scenario, but somewhat different code - i.e, it had non-AR models talking to each other, but it had no ajax whatsoever (the problems I mentioned occured in a project that has ajax views, rjs, etc.). That branch works fine on the local machine, so this doesnt seem like an environment problem on the machine... Any pointers would be very helpful, as I dont want to hang on to this workaround for too long. Thanks Anand On Jun 24, 12:15 pm, candor <rcan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> I have tried several things in the last few hours - including > branching, ripping out all the files, and adding the code back one bit > at a time. I am really out of choices now - one interesting thing - > this error seems to occur only on the rails app codepath. When I call > the same function from a unit test, it works fine. > > I did suspect that this was due to some gem being out of sync, as > several articles suggested, so I have removed everything except uri, > open-uri and nokogiri. It still does repro. > > Can someone please advise- at this point, any suggestion is useful. > > Thanks > Anand > > On Jun 23, 9:20 pm, candor <rcan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > Hi, > > > I have a rails (2.3.5) project that has two models that are not > > ActiveRecord based - one is called Wiki and another is called WebApi. > > > I have been using this in the past, and it was working. However, > > something I did is now causing ArgumentError to be raised when I call > > a class method on WebApi from a Wiki class method. Here is the > > relevant code: > > > wiki.rb > > > class Wiki > > def self.get_url phrase='''' > > response = WebApi.format_and_call(WIKIPEDIA_URL, phrase) #error > > occurs here > > ... > > end > > ... > > end > > > web_api.rb > > > class WebApi > > def self.format_and_call url_format_string, phrase) > > ... > > end > > end > > > Here is the error I get: > > > ArgumentError (wrong number of arguments (0 for 1)): > > app/models/wiki.rb:7:in `get_url'' > > > On debugging, i notice that the error is coming from a const_missing > > triggered by the attempt to access the WebApi object (it has nothing > > to do with the Wikipedia Url constant, which is fine). Here is the > > debug session: > > > /(rdb:18) step > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb: > > 91 > > if [Object, Kernel].include?(self) || parent == self > > (rdb:18) step > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/ > > introspection.rb:31 > > parent_name ? parent_name.constantize : Object > > (rdb:18) step > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/ > > introspection.rb:8 > > unless defined? @parent_name > > (rdb:18) next > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/ > > introspection.rb:9 > > @parent_name = name =~ /::[^:]+\Z/ ? $`.freeze : nil > > (rdb:18) next > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > gems/1.8/gems/actionpack-2.3.5/lib/action_controller/rescue.rb:162 > > rescue_action(exception) > > (rdb:18) exception > > #<ArgumentError: wrong number of arguments (0 for 1)> > > > I had initially named the WebApi class as Web, and thought the problem > > may be due to a name collision, but I tried different names, and get > > the same problem. > > > I am quite confused, since this seems fairly simple code, and I don''t > > know where to look. > > > I am using devise, and have delayed_job as well in the project, but > > not really using it in this case. > > > Thanks > > Anand-- 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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@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.
BTW, there is a typo in the code snippet where I am missing an open parenthesis. Adding it also causes the problem. Can anybody help, please? Thanks On Jun 24, 4:16 pm, candor <rcan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> I got a very ugly workaround to work - I created a fresh project from > scratch (no git, no delayed job, no devise, nothing:-)) and added the > files in. Then I merged the non-active record models into one (non AR) > model. So, all calls are within the same class, and this works. > > The interesting thing is that the error occurs only where I have calls > from one non-AR model to another. When i call a non-AR model from an > AR model it works. > > I dont like this at all, since each of the non-AR models is a separate > model for a reason (at the least to share common code). > > Also, i checked out an old branch that had the same scenario, but > somewhat different code - i.e, it had non-AR models talking to each > other, but it had no ajax whatsoever (the problems I mentioned occured > in a project that has ajax views, rjs, etc.). That branch works fine > on the local machine, so this doesnt seem like an environment problem > on the machine... > > Any pointers would be very helpful, as I dont want to hang on to this > workaround for too long. > > Thanks > Anand > > On Jun 24, 12:15 pm, candor <rcan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > I have tried several things in the last few hours - including > > branching, ripping out all the files, and adding the code back one bit > > at a time. I am really out of choices now - one interesting thing - > > this error seems to occur only on the rails app codepath. When I call > > the same function from a unit test, it works fine. > > > I did suspect that this was due to some gem being out of sync, as > > several articles suggested, so I have removed everything except uri, > > open-uri and nokogiri. It still does repro. > > > Can someone please advise- at this point, any suggestion is useful. > > > Thanks > > Anand > > > On Jun 23, 9:20 pm, candor <rcan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > Hi, > > > > I have a rails (2.3.5) project that has two models that are not > > > ActiveRecord based - one is called Wiki and another is called WebApi. > > > > I have been using this in the past, and it was working. However, > > > something I did is now causing ArgumentError to be raised when I call > > > a class method on WebApi from a Wiki class method. Here is the > > > relevant code: > > > > wiki.rb > > > > class Wiki > > > def self.get_url phrase='''' > > > response = WebApi.format_and_call(WIKIPEDIA_URL, phrase) #error > > > occurs here > > > ... > > > end > > > ... > > > end > > > > web_api.rb > > > > class WebApi > > > def self.format_and_call url_format_string, phrase) > > > ... > > > end > > > end > > > > Here is the error I get: > > > > ArgumentError (wrong number of arguments (0 for 1)): > > > app/models/wiki.rb:7:in `get_url'' > > > > On debugging, i notice that the error is coming from a const_missing > > > triggered by the attempt to access the WebApi object (it has nothing > > > to do with the Wikipedia Url constant, which is fine). Here is the > > > debug session: > > > > /(rdb:18) step > > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > > gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb: > > > 91 > > > if [Object, Kernel].include?(self) || parent == self > > > (rdb:18) step > > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > > gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/ > > > introspection.rb:31 > > > parent_name ? parent_name.constantize : Object > > > (rdb:18) step > > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > > gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/ > > > introspection.rb:8 > > > unless defined? @parent_name > > > (rdb:18) next > > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > > gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/module/ > > > introspection.rb:9 > > > @parent_name = name =~ /::[^:]+\Z/ ? $`.freeze : nil > > > (rdb:18) next > > > /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ > > > gems/1.8/gems/actionpack-2.3.5/lib/action_controller/rescue.rb:162 > > > rescue_action(exception) > > > (rdb:18) exception > > > #<ArgumentError: wrong number of arguments (0 for 1)> > > > > I had initially named the WebApi class as Web, and thought the problem > > > may be due to a name collision, but I tried different names, and get > > > the same problem. > > > > I am quite confused, since this seems fairly simple code, and I don''t > > > know where to look. > > > > I am using devise, and have delayed_job as well in the project, but > > > not really using it in this case. > > > > Thanks > > > Anand-- 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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@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.