Rails Association issue with NoMethodError in event_controller
- by pmanning
Kinda a noob trying to understand I think I need to define rsvps but not sure what to put...
I'm trying to add a Join/Unjoin button to user created Events, similar to a Follow/Unfollow button for Users.
NoMethodError in Events#show
undefined method `model_name' for NilClass:Class
in line #1 _unjoin.html.erb
1: <%= form_for(current_user.rsvps.find_by_joined_id(@event),
2: html: { method: :delete }) do |f| %>
3: <%= f.submit "Leave", class: "btn btn-large" %>
4: <% end %>
events_controller.rb
def show
@event = Event.find(params[:id])
@user = current_user
end
Here's the models
rsvp.rb
class Rsvp < ActiveRecord::Base
attr_accessible :joined_id
belongs_to :joiner, class_name: "User"
belongs_to :joined, class_name: "User"
validates :joiner_id, presence: true
validates :joined_id, presence: true
end
user.rb
has_many :rsvps, foreign_key: "joiner_id", dependent: :destroy
has_many :joined_events, through: :rsvps, source: :joined
has_many :reverse_rsvps, foreign_key: "joined_id",
class_name: "Rsvp",
dependent: :destroy
has_many :joiners, through: :reverse_rsvps, source: :joiner
event.rb
belongs_to :user
has_many :rsvps, foreign_key: "joiner_id", dependent: :destroy
has_many :joined_events, through: :rsvps, source: :joined
has_many :reverse_rsvps, foreign_key: "joined_id",
class_name: "Rsvp",
dependent: :destroy
has_many :joiners, through: :reverse_rsvps, source: :joiner
