i think use named_scope is not elegant way. use class method? no idea.you can give me your sample proj.i can test this way.
2009/12/2 Jeff Blasius <[email protected]> > How would I write a named_scope that checks if the parent has at least > one associated child? > > For example, > class Post < ActiveRecord::Base > has many :comments > > named_scope :commented_on, :conditions => "comments.count > 0" > > > class Comment < ActiveRecord::Base > belongs_to :post > > > > Thanks, > jeff > > -- > > 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 [email protected]. > To unsubscribe from this group, send email to > [email protected]<rubyonrails-talk%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > > > -- tommy xiao E-mail: xiaods(AT)gmail.com -- 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 [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-talk?hl=en.
