Question

我以某种方式中断了我的应用程序，似乎找不到我的错误，希望对您有所帮助。

<%= debug @relquotes %>
 <%= debug @book%>
  <h4 class="text-center">Related Quotes</h4>
  <% @relquotes.each do |quote| %>
    <article class="blog-1 blog-archive py-5">
      <div class="col-12 col-md-8 mr-md-auto ml-md-auto">
        <ol class="list-unstyled">
          <li>
            <h2 class="leading-normal mb-3"><%= quote.title %></h2>
            <div class="article-meta color-grey-50">
              <div class="media-body d-flex align-items-center">
                <p class="m-0 media-heading"><a>by </a><%= link_to quote.user.username, user_path(quote.user) %> &bull;
                  created <%= time_ago_in_words(quote.created_at) %> ago</p>
              </div>
            </div>
            <p class="quotebody"><%= sanitize quote.body.first(240) %> (...)</p>
            <a>  <%= link_to quote do %> Read more &rarr;</a>
              <% end %>
              </ol>
      </div>
    </article>
  <% end %>

在“图书”视图中找到此内容，并从中引用了与此书相关的报价

class Quote < ApplicationRecord
  belongs_to :user
  belongs_to :category
  belongs_to :book
  has_many :comments, dependent: :destroy


  validates :title, presence: true, length: {minimum: 5}
  validates :body, presence: true, length: {minimum: 240}
end

class Book < ApplicationRecord
  belongs_to :user, optional: true
  belongs_to :category, optional: true
  has_many :quotes
  has_many :reviews, dependent: :destroy

  has_attached_file :book_cover, styles: {book_index: '250x350>', book_show: '325x475>'}
  validates_attachment_content_type :book_cover, content_type: /\Aimage\/.*\z/
end

我的图书管理员

class BooksController < ApplicationController
  layout "_app_nav"

  before_action :set_book, only: [:show, :edit, :update, :destroy]

  # GET /books/1
  def show
    @average_review = if @book.reviews.blank?
                        0
                      else
                        @book.reviews.average(:rating).round(2)
                      end
    @relquotes = @book.quotes

  end

  private

  # Use callbacks to share common setup or constraints between actions.
  def set_book
    @book = Book.find(params[:id])
  end

  # Only allow a trusted parameter "white list" through.
  def book_params
    params.require(:book).permit(:title, :author, :description, :user_id, :book_cover, :category_id)
  end
end

debug @book正常工作，并且显示我的书。我通过Rails控制台确认报价与这本书相关。 debug @relquotes以普通的'--- []'解析。它以前工作过，我似乎找不到我搞砸的地方。

我的@relquotes应该显示与一本书相关的所有报价。我可以确认报价与一本书相关。

例如quote具有book_id = 1-因此book_id为1的书应将此报价显示为“相关报价”。任何帮助将不胜感激。

谢谢！

Ruby on Rails零值

0 个答案: