Nested Attributes Not Working in Rails Form
I have a form that uses two models - winners and badges. The user_id and community_id fields are required for badge_winners, which is nested in badges. I tried to learn from Rails Bates Railscast ( http://railscasts.com/episodes/196-nested-model-form-part-1 )
The error I am getting:
ActiveRecord::UnknownAttributeError in BadgesController#create
unknown attribute: user_id
app/controllers/badges_controller.rb:42:in `new'
Line 42 matches this line in: create
@badge = Badge.new(params[:badge])
here's the controller:
def new
@badge = Badge.new
badge_winner = @badge.badge_winners.build
respond_with(@badge)
end
def create
@badge = Badge.new(params[:badge])
if @badge.save
flash[:notice] = "Badge was successfully created."
redirect_to home_path
else
flash[:notice] = "There was a problem creating your badge."
redirect_to home_path
end
end
Here's the form (both community_id and user_id fill out fine):
<%= form_for(@badge) do |f| %>
<%= f.label :Description %>
<%= f.text_area :description %>
<%= f.fields_for :badge_winners do |builder| %>
<%= builder.hidden_field :user_id ,:value => user_id %>
<%= builder.hidden_field :community_id ,:value => community_id %>
<% end %>
<%= f.submit "Give Badge" %>
<% end %>
Models (user_id and community_id are fields in the BadgeWinner table):
class Badge < ActiveRecord::Base
belongs_to :community
has_many :badge_winners, :dependent=>:destroy
accepts_nested_attributes_for :badge_winners
end
class BadgeWinner < ActiveRecord::Base
belongs_to :user
belongs_to :badge
end
This is a similar problem, but I have no syntax reason: Form with nested attributes with has_one association not working in Rails 3
I hope someone can help. I just know this is a beginner's mistake. Thanks in advance for your help!
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