i have recipient , category model. it's simple association of 1 category has many recipients. when try update recipient form , assign category, won't save record. if use console , update record manually, e.g. recipient.update(9, category_id: 13), see correct category assigned recipient when try edit/update record, won't save new chosen category.
here recipient model
class recipient < activerecord::base belongs_to :category accepts_nested_attributes_for :category end here category model
class category < activerecord::base has_many :recipients validates :category, presence: true default_scope { order('category')} end here recipient controller
class recipientscontroller < applicationcontroller def index @recipients = recipient.order(:recipient_name).page(params[:page]) end def new @recipient = recipient.new end def show @recipient = recipient.find(params[:id]) end def create @recipient = recipient.new(recipient_params) if @recipient.save redirect_to recipients_path else render :new end end def edit @recipient = recipient.find(params[:id]) end def update @recipient = recipient.find(params[:id]) recipient_params = params.require(:recipient).permit(:recipient_name, :alternate_name, :description, :city, :state, :country, category_attributes: [:category, :id]) @recipient.update_attributes(recipient_params) redirect_to recipient_path(id: @recipient.id) end def destroy @recipient = recipient.find(params[:id]) @recipient.destroy redirect_to recipients_path end private def recipient_params params.require(:recipient).permit(:recipient_name, :alternate_name, :description, :city, :state, :country, product_attributes: [:product_name, recipient_products: [:recipient_id, :product_id]], channel_attributes: [:channel_name, recipient_channels: [:recipient_id, :channel_id]], category_attributes: [:id, :category]) end end here edit view
<div class="row"> <div class="col-sm-6"> <h2>edit <%= @recipient.recipient_name %></h2> <%= simple_form_for @recipient |form| %> <%= form.error_notification %> <%= form.input :recipient_name, placeholder: 'recipient', label: 'recipient name' %> <%= form.input :alternate_name, placeholder: 'alternate name' %> <%= form.association :category, label_method: :category, value_method: :id %> <%= form.input :description, placeholder: 'description'%> <%= form.input :city, placeholder: 'city'%> <%= form.input :state, placeholder: 'state' %> <%= form.input :country, as: :country, priority: ['us', 'ca'] %> <%= form.button :submit, 'update recipient', {:class=>"btn btn-secondary"} %> <%= link_to "cancel", :back, {:class=>"btn btn-default"} %> <% end %> </div> </div> and here routes.rb file
rails.application.routes.draw root to: 'home#index' resources :media_points resources :products resources :channels resources :recipients resources :media_point_products resources :distributions resources :categories resources :recipients end '/listing' => "listing#index" devise_for :admins devise_for :users resources :users end
i wrote answer since format pain in comments:
change recipient_params private method from: category_attributes: [:category, :id]
to
category_id: param_that_has_category_id_here also, have 2 routes recipients , going utilize first matching route not nested recipients in categories route have further down. if first change in private method didn't fix specify nested situation in simpleform doing follows since looking use nested route:
simple_form_for [@category, @recipient], url: 'nested_route_path_here' |f| just add @category = category.new new action in recipients controller , in create action you'll have category param sent via params[:category_id]
