Not getting the "front" variable for the flashcard app

Ruby on Rails Intro Rails Tutorial
1

Hi there, I’m on the part where Matthew let us figure out the part where we implement our own restful routes to the Card Model. I’m on the part that is creating a new card, but I can’t seem to get the “front” value, but I could get the “back” value in my model. Here’s my current codes.

Cards Controller

class CardsController < ApplicationController
  before_action :deck_params_id

  def show
    @card = @deck.cards.find(params[:id])
  end

  def new
    @card = @deck.cards.new
  end

  def create
    @card = @deck.cards.new(card_params)
    @card.save

    redirect_to @deck
  end

  private
  def deck_params_id 
    @deck = Deck.find(params[:deck_id])
  end

  def card_params
    params.require(:card).permit(:front)
    params.require(:card).permit(:back)
  end
end

New Form View

<%= form_for [@deck, @card] do |f| %>
  <div>
    <%= f.label :front %>
    <%= f.text_field :front %>
  </div>

  <div>
    <%= f.label :back %>
    <%= f.text_field :back %>
  </div>

  <%= f.submit "Create new card" %>
<% end %>

Routes

     Prefix Verb   URI Pattern                              Controller#Action
    deck_cards POST   /decks/:deck_id/cards(.:format)          cards#create
 new_deck_card GET    /decks/:deck_id/cards/new(.:format)      cards#new
edit_deck_card GET    /decks/:deck_id/cards/:id/edit(.:format) cards#edit
     deck_card GET    /decks/:deck_id/cards/:id(.:format)      cards#show
               PATCH  /decks/:deck_id/cards/:id(.:format)      cards#update
               PUT    /decks/:deck_id/cards/:id(.:format)      cards#update
               DELETE /decks/:deck_id/cards/:id(.:format)      cards#destroy
         decks GET    /decks(.:format)                         decks#index
               POST   /decks(.:format)                         decks#create
      new_deck GET    /decks/new(.:format)                     decks#new
     edit_deck GET    /decks/:id/edit(.:format)                decks#edit
          deck GET    /decks/:id(.:format)                     decks#show
               PATCH  /decks/:id(.:format)                     decks#update
               PUT    /decks/:id(.:format)                     decks#update
               DELETE /decks/:id(.:format)                     decks#destroy

My results when I add a byebug method before saving the card is:

byebug) @card
#<Card id: nil, front: nil, back: "Barney", deck_id: 19, created_at: nil, updated_at: nil>
(byebug) params
{"utf8"=>"✓", "authenticity_token"=>"t/5vLn5zlui6A4ui4kYx+kAgXWEamqMTQu6KCWSM7e/mFJVekOLcZMc/bPkXn7zu/ibhqsu2wXsMT8yqOASNLw==", "card"=>{"front"=>"Dinosaur", "back"=>"Barney"}, "commit"=>"Create new card", "controller"=>"cards", "action"=>"create", "deck_id"=>"19"}
(byebug) card_params
Unpermitted parameter: back
Unpermitted parameter: front
{"back"=>"Barney"}
(byebug)

Seems wierd. Since I have an awesome forum to ask, I hope you don’t find it stupid :slight_smile: Thanks!

2

SOLVED!

Just change

def card_params
    params.require(:card).permit(:front)
    params.require(:card).permit(:back)
  end

to

  def card_params
    params.require(:card).permit(:front, :back)
  end

although I don’t know the reason behind it, I just look at how it can be write in one line.