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hei

2008-Dec-02 04:04 UTC

Problem with extend rails(add new function in lib)

I do things below:

In lib/translater.rb
class Translater
 require "rubygems"
 require "rmmseg"
 include "RMMSeg"
 ...
 def segment(text)
   RMMSeg::segment(text)
 end
end

in helper/xx/xxx.rb
module xx
  require "translater.rb"
  def translate(text)
    Translater.run(text)
  end
end

when i use helper method tranlate,  erros:
undefined method `segment'' for RMMSeg:Module
But when I test these in a simple ruby program it works well
Can anyone help me ?
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hei

2008-Dec-02 05:59 UTC

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Re: Problem with extend rails(add new function in lib)

Can anyone help me ~~


On 12月2日, 下午12时04分, hei <cy...-KN7UnAbNpbg@public.gmane.org>
wrote:> I do things below:
>
> In lib/translater.rb
> class Translater
>  require "rubygems"
>  require "rmmseg"
>  include "RMMSeg"
>  ...
>  def segment(text)
>    RMMSeg::segment(text)
>  end
> end
>
> in helper/xx/xxx.rb
> module xx
>   require "translater.rb"
>   def translate(text)
>     Translater.run(text)
>   end
> end
>
> when i use helper method tranlate,  erros:
> undefined method `segment'' for RMMSeg:Module
> But when I test these in a simple ruby program it works well
> Can anyone help me ?--~--~---------~--~----~------------~-------~--~----~
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Frederick Cheung

2008-Dec-02 09:51 UTC

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Re: Problem with extend rails(add new function in lib)

On Dec 2, 5:59 am, hei <cy...-KN7UnAbNpbg@public.gmane.org>
wrote:> Can anyone help me ~~
>
What''s the run method in translater? ALso it looks like this
isn''t the
exact code that is running - for example include "RMMSeg" is almost
certainly include RMMSeg; it''s very hard to say anything about code
when it has been changed in small ways in between what you''re running
and this mailing list - those changes could be key or could be hiding
the real problem.

Fred

> On 12月2日, 下午12时04分, hei <cy...-KN7UnAbNpbg@public.gmane.org> wrote:
>
> > I do things below:
>
> > In lib/translater.rb
> > class Translater
> >  require "rubygems"
> >  require "rmmseg"
> >  include "RMMSeg"
> >  ...
> >  def segment(text)
> >    RMMSeg::segment(text)
> >  end
> > end
>
> > in helper/xx/xxx.rb
> > module xx
> >   require "translater.rb"
> >   def translate(text)
> >     Translater.run(text)
> >   end
> > end
>
> > when i use helper method tranlate,  erros:
> > undefined method `segment'' for RMMSeg:Module
> > But when I test these in a simple ruby program it works well
> > Can anyone help me ?--~--~---------~--~----~------------~-------~--~----~
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hei

2008-Dec-02 10:13 UTC

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Re: Problem with extend rails(add new function in lib)

Thanks!
class Translater
  require "rubygems"
  require "rmmseg"
  include RMMSeg

  RMMSeg::Config.max_word_length = 7
  RMMSeg::Config.algorithm = :complex
  RMMSeg::Config.dictionaries = [["dict/chars.dic", true],
                                 ["dict/words.dic", false],
                                 ["dict/desc.dic", false],
                                 ["dict/identity.dic", false],
                                 ["dict/name.dic", false],
                                 ]

  Word = {}
  File.open(File.join(File.dirname(__FILE__), "dict",
"word_china_english.trans")).each do |line|
    arr = line.split(" ")
    arr[1] = arr[0] unless arr[1]
    Word[arr[0]] = Word[arr[1]]
  end
  def self.segment(phrase)
    p RMMSeg::Config.max_word_length
    RMMSeg::segment(phrase)
  end

  def self.run(phrase)
    words = segment(phrase)
    translation = ""
    words.each do |word|
       translation += Word[word].to_s + " "
    end
    translation
  end

end

The actual problem is : why can not i use methods of some libray
(rmmseg in this exam) in rails.
I can use it in simple ruby program.
In rails, I encapsulate that method(segment) by a ruby class
(Translater), and put the source in folder lib/
when using it in helper functions, problem occurs like this:
undefined method `segment'' for RMMSeg:Module

Thanks for your help again!



On 12月2日, 下午5时51分, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On Dec 2, 5:59 am, hei <cy...-KN7UnAbNpbg@public.gmane.org> wrote:
>
> > Can anyone help me ~~
>
> What''s the run method in translater? ALso it looks like this
isn''t the
> exact code that is running - for example include "RMMSeg" is
almost
> certainly include RMMSeg; it''s very hard to say anything about
code
> when it has been changed in small ways in between what you''re
running
> and this mailing list - those changes could be key or could be hiding
> the real problem.
>
> Fred
>
> > On 12月2日, 下午12时04分, hei <cy...-KN7UnAbNpbg@public.gmane.org>
wrote:
>
> > > I do things below:
>
> > > In lib/translater.rb
> > > class Translater
> > >  require "rubygems"
> > >  require "rmmseg"
> > >  include "RMMSeg"
> > >  ...
> > >  def segment(text)
> > >    RMMSeg::segment(text)
> > >  end
> > > end
>
> > > in helper/xx/xxx.rb
> > > module xx
> > >   require "translater.rb"
> > >   def translate(text)
> > >     Translater.run(text)
> > >   end
> > > end
>
> > > when i use helper method tranlate,  erros:
> > > undefined method `segment'' for RMMSeg:Module
> > > But when I test these in a simple ruby program it works well
> > > Can anyone help me ?--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
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Frederick Cheung

2008-Dec-02 10:37 UTC

head link

Re: Problem with extend rails(add new function in lib)

On 2 Dec 2008, at 10:13, hei wrote:
>
> Thanks!
> class Translater
>  require "rubygems"
>  require "rmmseg"
>  include RMMSeg
>
>  RMMSeg::Config.max_word_length = 7
>  RMMSeg::Config.algorithm = :complex
>  RMMSeg::Config.dictionaries = [["dict/chars.dic", true],
>                                 ["dict/words.dic", false],
>                                 ["dict/desc.dic", false],
>                                 ["dict/identity.dic", false],
>                                 ["dict/name.dic", false],
>                                 ]
>
>  Word = {}
>  File.open(File.join(File.dirname(__FILE__), "dict",
> "word_china_english.trans")).each do |line|
>    arr = line.split(" ")
>    arr[1] = arr[0] unless arr[1]
>    Word[arr[0]] = Word[arr[1]]
>  end
>  def self.segment(phrase)
>    p RMMSeg::Config.max_word_length
>    RMMSeg::segment(phrase)
>  end
>
>  def self.run(phrase)
>    words = segment(phrase)
>    translation = ""
>    words.each do |word|
>       translation += Word[word].to_s + " "
>    end
>    translation
>  end
>
> end
>
> The actual problem is : why can not i use methods of some libray
> (rmmseg in this exam) in rails.
> I can use it in simple ruby program.
You must be doing something slightly different in your standalone ruby  
script. The segment method from the RMMSeg module can''t be called on  
RMMSeg itself. You need to include the module in something

if you were to remove the segment method you''ve defined and replace it
with
extend RMMSeg
then it would probably work.
or equivalently

class Translater
   ...
   class << self
     include RMSSeg
     def run(phrase)
       ....
     end
   end
end

Fred
>
> In rails, I encapsulate that method(segment) by a ruby class
> (Translater), and put the source in folder lib/
> when using it in helper functions, problem occurs like this:
> undefined method `segment'' for RMMSeg:Module
>
> Thanks for your help again!
>
>
>
> On 12月2日, 下午5时51分, Frederick Cheung  
> <frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>> On Dec 2, 5:59 am, hei <cy...-KN7UnAbNpbg@public.gmane.org>
wrote:
>>
>>> Can anyone help me ~~
>>
>> What''s the run method in translater? ALso it looks like this
isn''t
>> the
>> exact code that is running - for example include "RMMSeg" is
almost
>> certainly include RMMSeg; it''s very hard to say anything about
code
>> when it has been changed in small ways in between what you''re
running
>> and this mailing list - those changes could be key or could be hiding
>> the real problem.
>>
>> Fred
>>
>>> On 12月2日, 下午12时04分, hei <cy...-KN7UnAbNpbg@public.gmane.org>
wrote:
>>
>>>> I do things below:
>>
>>>> In lib/translater.rb
>>>> class Translater
>>>> require "rubygems"
>>>> require "rmmseg"
>>>> include "RMMSeg"
>>>> ...
>>>> def segment(text)
>>>>   RMMSeg::segment(text)
>>>> end
>>>> end
>>
>>>> in helper/xx/xxx.rb
>>>> module xx
>>>>  require "translater.rb"
>>>>  def translate(text)
>>>>    Translater.run(text)
>>>>  end
>>>> end
>>
>>>> when i use helper method tranlate,  erros:
>>>> undefined method `segment'' for RMMSeg:Module
>>>> But when I test these in a simple ruby program it works well
>>>> Can anyone help me ?
> >

--~--~---------~--~----~------------~-------~--~----~
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hei

2008-Dec-03 02:34 UTC

head link

Re: Problem with extend rails(add new function in lib)

It works, using extend RMMSeg
thank you ~~



On 12月2日, 下午6时37分, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On 2 Dec 2008, at 10:13, hei wrote:
>
>
>
>
>
> > Thanks!
> > class Translater
> >  require "rubygems"
> >  require "rmmseg"
> >  include RMMSeg
>
> >  RMMSeg::Config.max_word_length = 7
> >  RMMSeg::Config.algorithm = :complex
> >  RMMSeg::Config.dictionaries = [["dict/chars.dic", true],
> >                                 ["dict/words.dic", false],
> >                                 ["dict/desc.dic", false],
> >                                 ["dict/identity.dic",
false],
> >                                 ["dict/name.dic", false],
> >                                 ]
>
> >  Word = {}
> >  File.open(File.join(File.dirname(__FILE__), "dict",
> > "word_china_english.trans")).each do |line|
> >    arr = line.split(" ")
> >    arr[1] = arr[0] unless arr[1]
> >    Word[arr[0]] = Word[arr[1]]
> >  end
> >  def self.segment(phrase)
> >    p RMMSeg::Config.max_word_length
> >    RMMSeg::segment(phrase)
> >  end
>
> >  def self.run(phrase)
> >    words = segment(phrase)
> >    translation = ""
> >    words.each do |word|
> >       translation += Word[word].to_s + " "
> >    end
> >    translation
> >  end
>
> > end
>
> > The actual problem is : why can not i use methods of some libray
> > (rmmseg in this exam) in rails.
> > I can use it in simple ruby program.
>
> You must be doing something slightly different in your standalone ruby
> script. The segment method from the RMMSeg module can''t be called
on
> RMMSeg itself. You need to include the module in something
>
> if you were to remove the segment method you''ve defined and
replace it
> with
> extend RMMSeg
> then it would probably work.
> or equivalently
>
> class Translater
>    ...
>    class << self
>      include RMSSeg
>      def run(phrase)
>        ....
>      end
>    end
> end
>
> Fred
>
>
>
> > In rails, I encapsulate that method(segment) by a ruby class
> > (Translater), and put the source in folder lib/
> > when using it in helper functions, problem occurs like this:
> > undefined method `segment'' for RMMSeg:Module
>
> > Thanks for your help again!
>
> > On 12月2日, 下午5时51分, Frederick Cheung
> > <frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > wrote:
> >> On Dec 2, 5:59 am, hei <cy...-KN7UnAbNpbg@public.gmane.org>
wrote:
>
> >>> Can anyone help me ~~
>
> >> What''s the run method in translater? ALso it looks like
this isn''t
> >> the
> >> exact code that is running - for example include
"RMMSeg" is almost
> >> certainly include RMMSeg; it''s very hard to say anything
about code
> >> when it has been changed in small ways in between what
you''re running
> >> and this mailing list - those changes could be key or could be
hiding
> >> the real problem.
>
> >> Fred
>
> >>> On 12月2日, 下午12时04分, hei
<cy...-KN7UnAbNpbg@public.gmane.org> wrote:
>
> >>>> I do things below:
>
> >>>> In lib/translater.rb
> >>>> class Translater
> >>>> require "rubygems"
> >>>> require "rmmseg"
> >>>> include "RMMSeg"
> >>>> ...
> >>>> def segment(text)
> >>>>   RMMSeg::segment(text)
> >>>> end
> >>>> end
>
> >>>> in helper/xx/xxx.rb
> >>>> module xx
> >>>>  require "translater.rb"
> >>>>  def translate(text)
> >>>>    Translater.run(text)
> >>>>  end
> >>>> end
>
> >>>> when i use helper method tranlate,  erros:
> >>>> undefined method `segment'' for RMMSeg:Module
> >>>> But when I test these in a simple ruby program it works
well
> >>>> Can anyone help me ?--~--~---------~--~----~------------~-------~--~----~
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