How to call method of one class in another class

ruby-talk
1

Hi all,

Any help is appreciated.

I have a class namely,

class Web
   include HTTParty

   headers 'Accept' => 'application/xml'
   format :xml

end

And I have another class,

class AtomFormats < HTTParty::Parser
  include HTTParty
  SupportedFormats.merge!(
      { "application/atom+xml" => :atom}
      )
  def atom
            headers 'Accept' => 'application/atom+xml'
      format :atom
  end
end

I need to change the headers and format present in Class web to those
parameters present in Class Atomformats.

How can I make a call from Class web to Class Atomformats to make the
change happen

Thanks

···

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2

Since classes are objects themselves, they also have methods. To define class methods,

class MyClass
  def self.my_method
    p self
  end
end

MyClass.my_method

Hope this helped.

···

On Dec 12, 2011, at 2:53 PM, rubythemystery ruby <rubythemystery@gmail.com> wrote:

Hi all,

Any help is appreciated.

I have a class namely,

class Web
  include HTTParty

  headers 'Accept' => 'application/xml'
  format :xml

end

And I have another class,

class AtomFormats < HTTParty::Parser
include HTTParty
SupportedFormats.merge!(
     { "application/atom+xml" => :atom}
     )
def atom
           headers 'Accept' => 'application/atom+xml'
     format :atom
end
end

I need to change the headers and format present in Class web to those
parameters present in Class Atomformats.

How can I make a call from Class web to Class Atomformats to make the
change happen

Thanks

--
Posted via http://www.ruby-forum.com/\.

3

Not sure why exactly, but nokogiri installed fine on my desktop, but I've been
fighting with the installation for hours on my MacBook Pro. When I did a search,
it seems that this isn't limited to nokogiri, and can't seem to come up with a
definitive fix. Here is what was logged in the gem_make.out file:

/Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/bin/ruby extconf.rb
--with-xslt-dir=/usr/local/Cellar/libxslt/1.1.26
checking for libxml/parser.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

<cut>

/Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:368:in
`try_do': The complier failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:452:in
`try_cpp'
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:853:in
`block in find_header'
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:693:in
`block in checking_for'
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:280:in
`block (2 levels) in postpone'
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:254:in
`open'
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:280:in
`block in postpone'
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:254:in
`open'
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:276:in
`postpone'
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:692:in
`checking_for'
from /Users/wayneb/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:852:in
`find_header'
from extconf.rb:96:in `<main>'

I reinstalled the lasted Xcode "just in case"... that didn't fix anything.

Anybody have a fix for this? It seems several gems have seen this issue, so I'm
hoping by posting on the larger ruby list somebody else might have seen this and
have a solution for it.

Wayne

4

Michael Sokol wrote in post #1036318:

Since classes are objects themselves, they also have methods. To define
class methods,

class MyClass
  def self.my_method
    p self
  end
end

MyClass.my_method

Hope this helped.

Hi Michael,

I am confused.

Can you please say the example by editing my code itself.

Thanks in Advance

···

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