On Fri, Apr 9, 2010 at 10:10 AM, Anuj Dutta <[email protected]> wrote: > > > On 9 April 2010 16:56, Joao Carlos <[email protected]> wrote: >> >> I just came across a situation where it would be extremely handy to >> have a method that returns the receiver. >> >> Imagine the following example: >> >> filter = %w(with_votes without_votes).include?(params[:filter]) ? >> params[:filter].to_sym : :self >> Idea.published.send(filter).all >> >> The implementation would be pretty simple: >> >> class Object >> def self >> self >> end >> end >> >> Should this be a part of Rails? >> > > Doesn't tap method in 1.9 do that already?
Object#tap requires a block. Rails has Object#presence, which is def presence self if present? end So for *most objects* it does what you want (except for empty arrays, strings, etc) > Anuj > > >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Ruby on Rails: Core" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/rubyonrails-core?hl=en. >> > > > > -- > Anuj DUTTA > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Core" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/rubyonrails-core?hl=en. > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-core?hl=en.
