How to Call a static method?

ruby-talk
1

Hi there, after I searched the ruby-doc.org site I couldn't find a hint
how to call a class method on different classes.

I've a helper class which parses a text input and which should either call

Role.something or

Organisation.anotherthing

depening which parameter was passed.

Please give a little hint to proceed. Thanks a lot...

···

--
Daniel Völkerts
Protected by Anti Pesto. -- Wallace & Gromit

2

Just do it
if condition
  Role.something
else
  Organisation.anotherthing
end

Nothing special.

···

On Tue, Oct 03, 2006 at 11:05:43PM +0900, Daniel V?lkerts wrote:

Hi there, after I searched the ruby-doc.org site I couldn't find a hint
how to call a class method on different classes.

I've a helper class which parses a text input and which should either call

Role.something or

Organisation.anotherthing

depening which parameter was passed.

Please give a little hint to proceed. Thanks a lot...

3

class Test
  def self.test
    puts "The huge test...OF DOOM!"
  end
end
Test.test # => The huge test...OF DOOM!

Test.test isn't really a static method, but a singleton method on
Test. Then just do a test in your method:

  def call_one_or_the_other(x)
    case x
      when SomeClass
        Role.something
      when OtherClass
        Organisation.anotherthing
    end
  end

···

On 10/3/06, Daniel Völkerts <daniel@voelkerts.de> wrote:

Hi there, after I searched the ruby-doc.org site I couldn't find a hint
how to call a class method on different classes.

I've a helper class which parses a text input and which should either call

Role.something or

Organisation.anotherthing

depening which parameter was passed.

Please give a little hint to proceed. Thanks a lot...
--
Daniel Völkerts
Protected by Anti Pesto. -- Wallace & Gromit

--
- Simen

4

Okay, misleading question.

What if I like to call the classes dynamically e.g.

def mymethod(class,method)
call(class,method,options)
end

?

Where call is the Ruby function I'm looking for.

greetings,

···

--
Daniel Völkerts
Protected by Anti Pesto. -- Wallace & Gromit

5

Okay, misleading question.

What if I like to call the classes dynamically e.g.

def mymethod(class,method)
call(class,method,options)
end

?

Where call is the Ruby function I'm looking for.

send

···

On Tue, Oct 03, 2006 at 11:19:55PM +0900, Daniel V?lkerts wrote:

greetings,
--
Daniel V?lkerts
Protected by Anti Pesto. -- Wallace & Gromit

6

Class.send(:method, *options) or

const_get('Class').send(:method, *options)

possibly

const_get('Class').send(:method, *options, &block) but i'm not sure
with this one.

···

On 10/3/06, Daniel Völkerts <daniel@voelkerts.de> wrote:

Okay, misleading question.

What if I like to call the classes dynamically e.g.

def mymethod(class,method)
call(class,method,options)
end

?

Where call is the Ruby function I'm looking for.

7

Okay, misleading question.

What if I like to call the classes dynamically e.g.

def mymethod(class,method)
call(class,method,options)
end

# Both as strings or symbols?
def mymethod(class,method)
   const_get(class).send(method)
end

···

On 10/3/06, Daniel Völkerts <daniel@voelkerts.de> wrote:

?

Where call is the Ruby function I'm looking for.

greetings,
--
Daniel Völkerts
Protected by Anti Pesto. -- Wallace & Gromit

--
===Tanner Burson===
tanner.burson@gmail.com
http://tannerburson.com <---Might even work one day...

8

Jan Svitok schrieb:

Where call is the Ruby function I'm looking for.

Class.send(:method, *options) or

const_get('Class').send(:method, *options)

possibly

const_get('Class').send(:method, *options, &block) but i'm not sure
with this one.

Great const_get('Classname').send is what I'm looking for. TIA!

···

--
Daniel Völkerts
Protected by Anti Pesto. -- Wallace & Gromit