recipe_controller.rb

class RecipeController < ApplicationController
  before_action :find_recipe, only: [:show, :update, :edit, :destroy]

  def index
    @recipes = Recipe.all
  end

  def new
    @recipe = Recipe.new
  end

  def show
  end

  def edit
  end

  def update
    if @recipe.update(recipes_params)
      redirect_to @recipe, notice: 'Receita atualizada com sucesso!'
    end
  end

  def create
    @recipe = Recipe.new(recipes_params)
    if @recipe.save
      redirect_to @recipe
    end
  end

  def destroy
    if @recipe.destroy
      redirect_to recipes_url
    end
  end

  private
  def find_recipe
    @recipe = Recipe.find(params[:id])
  end

  def recipes_params
    params.require(:recipe).permit(:name, :stuff, :calories, :prepare_mod, :cost, :kind, :portion, :duration, :poster)
  end

end





# A view

<%= form_for @recipe do |f| %>

  <p>
    <%= f.label :name %>
    <%= f.text_field :name, class:'form-control' %>
  </p>

  <p>
    <%= f.label :stuff %>
    <%= f.text_area :stuff, cols: 20, rows: 5, class: 'form-control' %>
  </p>

  <p>
    <%= f.label :calories %>
    <%= f.number_field :calories %>
  </p>

  <p>
    <%= f.label :prepare_mod %>
    <%= f.text_area :prepare_mod, cols: 20, rows: 5 %>
  </p>

  <p>
    <%= f.label :cost %>
    <%= f.number_field :cost %>
  </p>

  <p>
    <%= f.label :kind %>
    <%= f.text_field :kind %>
  </p>

  <p>
    <%= f.label :portion %>
    <%= f.text_field :portion %>
  </p>

  <p>
    <%= f.label :duration %>
    <%= f.time_select :duration %>
  </p>

  <p>
    <%= f.label :poster %>
    <%= f.text_field :poster, placeholder: "Gif, Jpg ou PNG" %>
  </p>

  <p>
    <%= f.submit %>
    <%= link_to 'Cancelar', recipe_index_path %>
  </p>

<% end %>


######################### A chamada da partial ###########################

# O nome do arquivo é _form.html.erb

# View new.html.erb #

<%= render 'form' %>


# View edit.html.erb

<%= render 'form' %>