Question

What I’m trying to do is write a method that will return all of this model’s outing_locations, to which it has a has_many relationship.

class Outing < ActiveRecord::Base
  attr_accessible :description, :end_time, :start_time, :title, :user_id

  belongs_to :user
  has_many :outing_locations
  has_many :outing_guests
  has_one :time_range, :foreign_key => "element_id", :conditions => { :element_type => "outing" }

  validates :title, :presence => true
  validates :start_time, :presence => true # regex
  validates :end_time, :presence => true # regex

  def host_name
    return User.find(self.user_id).full_name
  end


end

I’m trying to get this block in particular to work.

There’s another model called OutingInvite, which contains the id of a particular Outing. I need to use that to grab the proper Outing and then pull said Outing’s associated outing locations.

Here’s a rough sample:

<%@outing_invites.each do |invite|%>
 ...
    <% @party = Outing.where(:id => invite.outing_id) %>
    <% @party.outing_locations.each do |location| %>

And then have it output each location.

However, it’s saying the method ‘outing_locations’ does not exist…

Answer 1

You can see a model’s associated models by typing model_instance.associated_model_name. So in your example, an outing has_many outing_locations. After you have an instance of an outing, say by using @o = Outing.find(1), you can then use o.outing_locations to see the outing_locations associated with that specific outing.

See this example from the Ruby on Rails Guide.

EDIT

The reasons you’re getting the method 'outing_locations' does not exist error is because Outing.where(:id => invite.outing_id) returns an array, and there is no outing_locations method for arrays. You’ll need to either get the specific instance (like with Outing.find(invite.outing_id) or use a specific index in that array. I recommend using Outing.find(invite.outing_id) since (I’m assuming) each of your Outing’s has a unique id.