Erol, Thank you for the reply.
This will work, but is there a way to do this search without adding another association? I am just trying to learn the capabilities of ActiveRecord. Let me re-state the problem: I either already have the parent object, or know enough of it's attributes to find the parent. But the goal is to find the child, using only its 'parent' association. Child.find (:name=>"Timmy", parent => knownParent ) - or - Child.find (:name=>"Timmy", parent.name => "Michael") On Sat, Oct 16, 2010 at 5:50 AM, Erol Fornoles <[email protected]> wrote: > class Parent < Entity > has_many :children > end > p = Parent.find_by_name("Michael") > p.children # Returns all children of the parent > HTH > > On Sat, Oct 16, 2010 at 4:01 AM, Nikolai Teleguine <[email protected]> > wrote: >> >> --- >> class Child < Entity >> belongs_to :parent, :foreign_key => 'parent_id' >> end >> >> class Parent < Entity >> end >> >> class Entity < ActiveRecord::Base >> end >> --- >> >> p = Parent.find_by_name( "Michael" ) >> >> How do I find children of this parent, given that I have the identity >> of the parent? >> Can I do it without referring to parent entity attributes/values >> directly ? Something like >> >> Child.find :parent => p >> >> Rails version is 2.1.0, if that matters. >> >> -- >> 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. >> > > > > -- > Erol M. Fornoles > http://erolfornoles.posterous.com > http://github.com/Erol > http://twitter.com/erolfornoles > http://ph.linkedin.com/in/erolfornoles > > -- > 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. > -- 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.
