cocktails_controller.rb

class CocktailsController < ApplicationController
  def index
    @cocktails = Cocktail.all
  end

  def show
    @cocktail = Cocktail.find(params[:id])
    @dose = Dose.new
    @review = Review.new
  end

  def new
    @cocktail = Cocktail.new
  end

  def create
    @cocktail = Cocktail.new(cocktail_params)
    if @cocktail.save
      redirect_to cocktail_path(@cocktail)
    else
      render 'new'
    end
  end

  private

  def cocktail_params
    params.require(:cocktail).permit(:name, :photo)
  end
end

doses_controller.rb

class DosesController < ApplicationController
  # def new
  #   @cocktail = Cocktail.find(params[:cocktail_id])
  #   @dose = Dose.new
  # end

  def create
    @cocktail = Cocktail.find(params[:cocktail_id])
    @dose = Dose.new(dose_params)
    @dose.cocktail = @cocktail
    if @dose.save
      redirect_to cocktail_path(@cocktail)
    else
      @review = Review.new
      render "cocktails/show"
    end
  end

  def destroy
    @dose = Dose.find(params[:id])
    @dose.destroy
    redirect_to cocktail_path(@dose.cocktail)
  end

  private

  def dose_params
    params.require(:dose).permit(:description, :ingredient_id)
  end
end

index.html.erb

<div class="banner" style="background-image: linear-gradient(-225deg, rgba(0,101,168,0.6) 0%, rgba(0,36,61,0.6) 50%), url('<%= image_path 'cocktails.jpg' %>');">
  <div class="banner-content">
    <h1>Le Wagon's cocktails</h1>
    <p>Awesome beverages for developers nightlife</p>
    <%= link_to "Add a cocktail", new_cocktail_path, class: "btn btn-primary btn-lg" %>
  </div>
</div>
<div class="container">
  <div class="row">
    <% @cocktails.each do |cocktail| %>
      <div class="col-12 col-md-6 col-lg-3">
        <% if cocktail.photo? %>
          <% background_url = cl_image_path cocktail.photo, width: 400, height: 500, crop: :fill %>
        <% else %>
          <% background_url = 'https://source.unsplash.com/500x400/?cocktail' %>
        <% end %>
        <div class="card" style="background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.2)), url('<%= background_url %>');">
          <div class="card-description">
            <h2><%= cocktail.name %></h2>
          </div>
          <%= link_to "", cocktail_path(cocktail), class: 'card-link' %>
        </div>
      </div>
    <% end %>
  </div>
</div>

new_cocktail.html.erb

<div class="container">
  <div class="row justify-content-center">
    <div class="col-md-8">
      <h1>Create a new cocktail</h1>

      <%= simple_form_for @cocktail do |f| %>
        <%= f.input :name %>
        <%= f.input :photo %>
        <%= f.input :photo_cache, as: :hidden %>
        <%= f.button :submit, class: 'btn btn-primary' %>
      <% end %>
    </div>
  </div>
</div>

new_dose

<h3>Add a new dose</h3>
<%= simple_form_for [cocktail, dose] do |f| %>
  <%= f.association :ingredient, input_html: { class: "beautiful-dropdown" }, include_hidden: false %>
  <%= f.input :description %>
  <%= f.button :submit, class: "btn btn-primary" %>
<% end %>

new_review

<h3>Add a review</h3>
<%= simple_form_for [cocktail, review] do |f| %>
  <%= f.input :rating, collection: 0..5 %>
  <%= f.input :content %>
  <%= f.submit class: "btn btn-primary"%>
<% end %>

reviews_controller.rb

class ReviewsController < ApplicationController
  def create
    @cocktail = Cocktail.find(params[:cocktail_id])
    @review = Review.new(review_params)
    @review.cocktail = @cocktail
    if @review.save
      redirect_to cocktail_path(@cocktail)
    else
      @dose = Dose.new
      render "cocktails/show"
    end
  end

  private

  def review_params
    params.require(:review).permit(:rating, :content)
  end
end

show

<div class="container">
  <h1><%= @cocktail.name %></h1>
  <%= link_to "Back to all cocktails", root_path %>
  <br>
  <%= cl_image_tag @cocktail.photo, height: 300, width: 400, crop: :fill %>


  <div class="row">
    <div class="col-sm-12 col-md-6">
      <h3>Recipe</h3>
      <table class="table table-bordered">
        <tbody>
          <thead>
            <th>Ingredient</th>
            <th>Description</th>
            <th>Action</th>
          </thead>
          <% @cocktail.doses.each do |dose| %>
            <tr>
              <td><%= dose.ingredient.name %></td>
              <td><%= dose.description %></td>
              <td>
                <%= link_to dose_path(dose), method: :delete, data: { confirm: "Are you sure?" } do %>
                  <i class="fa fa-trash destroy_dose"></i>
                <% end %>
              </td>
            </tr>
          <% end %>
        </tbody>
      </table>
    </div>
    <div class="col-sm-12 col-md-6">
      <%= render "doses/new", cocktail: @cocktail, dose: @dose %>
    </div>
  </div>

  <h3>Reviews</h3>
  <% if @cocktail.reviews.empty? %>
    <p>Be the first to let a review</p>
  <% else %>
    <ul class="list-group">
      <% @cocktail.reviews.each do |review| %>
        <li class="list-group-item d-flex justify-content-between align-items-center">
          <span class="badge badge-primary badge-pill">
            <% counter = 0 %>
            <% 5.times do %>
              <i class="fa <%= review.rating > counter ? 'fa-star' : 'fa-star-o' %>"></i>
              <% counter += 1 %>
            <% end %>
          </span>
          <%= review.content %>
        </li>
      <% end %>
    </ul>
  <% end %>

  <%= render "reviews/new", cocktail: @cocktail, review: @review %>

</div>