在用户＃show

Question

我还在我的食谱应用/网站上工作。我已经解决了一些我遇到过的主要问题。我现在更深入地进入应用程序。

现在，我目前已经建立并正在开展收藏行动。我可以随意喜欢和不喜欢的食谱。但是，我现在正在尝试创建和编制索引，如果您将使用用户所喜爱的所有不同的食谱。我希望这个收藏的食谱列表显示在用户#show页面上，这样他们就可以登录并转到他们的个人资料来查看他们最喜欢的食谱。但是，如果这样做，我完全有雾。我整天想弄清楚，我以为自己拥有它，但没有。它显示所有食谱，而不仅仅是收藏的食谱。所以我终于崩溃了，决定将它带给天才（你们！）

我将为您提供一大堆代码，不确定这些代码是否有用，但希望您能够快速解读它。

如果我还没有明确表达目标，那么目标就是将收藏食谱作为列表列在用户＃显示页面上。

收藏控制器：

class FavoritesController < ApplicationController
  def create
    recipe = Recipe.find(params[:recipe_id])
    @recipe = Recipe.find(params[:recipe_id])
    favorite = current_user.favorites.build(recipe: recipe)
    authorize favorite
    if favorite.save
      flash[:notice] = "Your favorite was saved."
      redirect_to @recipe
    else
      flash[:error] = "There was an error saving your favorite."
      redirect_to @recipe
    end
  end

  def destroy
    recipe = Recipe.find(params[:recipe_id])
    @recipe = Recipe.find(params[:recipe_id])
    favorite = Favorite.find(params[:id])
     authorize favorite
    if favorite.destroy
      flash[:notice] = "Favorite successfully deleted!"
      redirect_to favorite.recipe
    else
      flash[:error] = "There was a error in deleting your favorite."
      redirect_to @recipe
    end

  end
end

用户控制器：

class UsersController < ApplicationController

  def show
    @user = User.find(params[:id])
    @recipes = Recipe.where(@favorited)
    @favorites = current_user.favorites
    @comments = current_user.comments
  end

  private

  def user_params
    params.require(:user).permit(:name, :email)
  end

end

食谱控制器：

class RecipesController < ApplicationController
  def index
    if params[:category].present?
      @recipes = Recipe.where(category: params[:category])
    else
      @recipes = Recipe.all
    end
  end

  def show
     @recipe = Recipe.find(params[:id])
     @comments = @recipe.comments
     @comment = Comment.new
  end

  def new
    @recipe = Recipe.new
  end

  def edit
    @recipe = Recipe.find(params[:id])
    authorize @recipe
  end

  def update
    @recipe = Recipe.find(params[:id])
    authorize @recipe
    if @recipe.update_attributes(recipe_params)
      flash[:notice] = "Recipe was updated."
      redirect_to @recipe
    else
      flash[:error] = "There was an error saving the post. Please try again."
      render :edit
    end
  end


  def create
    @recipe = Recipe.new(recipe_params)
    authorize @recipe
    if @recipe.save
      flash[:notice] = "Recipe was saved."
      redirect_to @recipe
    else
      flash[:error] = "There was an error saving the post. Please try again."
      render :new
    end
  end

  private

  def recipe_params
    params.require(:recipe).permit(:title, :body, :category, :ingredient, :foodphoto, :recipecard)
  end


end

用户模型：

class User < ActiveRecord::Base
  has_many :comments
  has_many :favorites, dependent: :destroy

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable, :confirmable

  def admin?
    role == 'admin'
  end

  def favorited(recipe)
    favorites.where(recipe_id: recipe.id).first
  end


end

食谱模型：

class Recipe < ActiveRecord::Base
  has_many :comments
  has_many :favorites, dependent: :destroy
  mount_uploader :foodphoto, FoodPhotoUploader
  mount_uploader :recipecard, RecipeCardUploader
end

收藏夹型号：

class Favorite < ActiveRecord::Base
  belongs_to :recipe
  belongs_to :user
end

收藏夹部分：

<% if policy(Favorite.new).create? %>
  <div class="favorite">
    <% if favorite = current_user.favorited(recipe) %>
      <%= link_to [recipe, favorite], class: 'btn btn-danger', method: :delete do %>
        <i class="glyphicon glyphicon-star-empty"> </i>&nbsp; Unfavorite
        <% end %>
    <% else %>
      <%= link_to [@recipe, Favorite.new], class: 'btn btn-primary', method: :recipe do %>
        <i class="glyphicon glyphicon-star"> </i>&nbsp; Favorite
      <% end %>
    <% end %>
  </div>
<% end %>

用户#show页面：

<h1>User#show</h1>
<h2>Favorite Recipes</h2>
<% @recipes.each do |recipe| %>
  <p><%= recipe.title %></p>
<% end %>

routes.rb中：

Rails.application.routes.draw do


  devise_for :users
  resources :users, only: :show
  get 'comments/index'

  get 'comments/create'

  get 'comments/show'

  get 'comments/edit'

  get 'comments/new'

  resources :recipes do
    resources :comments, only: [:create, :show, :index, :new, :destroy]
    resources :favorites, only: [:create, :destroy]
  end

  get 'drinks' => 'recipes#index', :category => "drinks"
  get 'entrees' => 'recipes#index', :category => "entrees"
  get 'sides' => 'recipes#index', :category => "sides"
  get 'desserts' => 'recipes#index', :category => "desserts"
  get 'appetizers' => 'recipes#index', :category => "appetizers"


  get 'about' => 'welcome#about'

  root to: 'welcome#index'

end

我知道代码可能看起来相当粗糙，但这是我的第一个应用程序我自己构建而没有教程。您可以提供任何帮助或见解，我将非常感激。这个任务看起来很简单，但是我已经把自己弄得很疯狂了。

如果您需要我提供更多信息或代码，请告诉我，我会跳过它。

你们摇滚，再次感谢。

Answer 1

在您的用户控制器中：

  # users_controller.rb
  def show
    @user = User.find(params[:id])
    @recipes = Recipe.joins(:favorites).where('favorites.user_id = ?', @user.id)
    # rest of your codes
  end

此@recipes = Recipe.joins(:favorites).where('favorites.user_id = ?', @user.id)应该为您提供当前用户所关注的收据，这是您正在寻找的。