i''m using method_missing to implement a simple metaprogramming that
checks for account rights.
in Account << ActiveRecord::Base i defined:
def method_missing(m, a = {})
if m.to_s =~ /^has_right_(.*)$/
... calls another method passing $1 parameter
end
end
it seems to override some of the active record methods based on method
missing. in the console it seems to work ok so i got some problem in
debugging.
how can i call from Account#method_missing the
activeRecord::Base#method_missing ?
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On 18 March 2010 10:23, eugenio <eugenio.modesti-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> i''m using method_missing to implement a simple metaprogramming that > checks for account rights. > > it seems to override some of the active record methods based on method > missing. in the console it seems to work ok so i got some problem in > debugging.This explains part of the problem: http://ruby.tie-rack.org/6/safely-overriding-method_missing-in-a-class-that-already-has-it/ Calling to "super" should be part of your solution... def method_missing(m, *args, &block) if m.to_s =~ /^has_right_(.*)$/ ... calls another method passing $1 parameter else super(m, *args, &block) end end -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
#i added this line:
alias_method :ar_method_missing, :method_missing
#and an else condition in my method_missing
def method_missing(m,*a,&block)
if m.to_s =~ /^has_right_(.*)$/
... calls another method passing $1 parameter
else
ar_method_missing(m,*a, &block)
end
end
it seems to work now.
On 18 Mar, 11:23, eugenio
<eugenio.mode...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> i''m using method_missing to implement a simple metaprogramming
that
> checks for account rights.
>
> in Account << ActiveRecord::Base i defined:
>
> def method_missing(m, a = {})
> if m.to_s =~ /^has_right_(.*)$/
> ... calls another method passing $1 parameter
> end
> end
>
> it seems to override some of the active record methods based on method
> missing. in the console it seems to work ok so i got some problem in
> debugging.
>
> how can i call from Account#method_missing the
> activeRecord::Base#method_missing ?
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On Thu, Mar 18, 2010 at 12:12 PM, eugenio <eugenio.modesti-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> #i added this line: > alias_method :ar_method_missing, :method_missing > > #and an else condition in my method_missing > > def method_missing(m,*a,&block) > if m.to_s =~ /^has_right_(.*)$/ > ... calls another method passing $1 parameter > else > ar_method_missing(m,*a, &block) > end > end > > it seems to work now.Please don''t do that. This is ordinary object-oriented programming. If you override a method and want to delegate to the parent just call super. That''s what super is for. Aliasing is an inappropriate solution to this. -- 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.