Question

目前，我的平均评分在展示页面中。

但是，除了每个冲浪学校的名字之外，我如何在索引中显示这个平均评分？我遇到了麻烦，因为在索引上，我们使用@ surf_school.each做| surf_schools |。

以下代码是我在展示页面中显示平均评分的代码。

surf_schools_controller.rb

class SurfSchoolsController < ApplicationController
  before_action :authenticate_user!, except: [:index, :show]
    before_action :surf_school_find, only: [:show, :edit, :update, :destroy]
  before_action :correct_user, only: [:edit, :update, :destroy]

  def index
    @surf_schools = SurfSchool.all
  end

  def new
    @surf_school = current_user.surf_schools.build
  end

  def create
    @surf_school = current_user.surf_schools.build(surf_school_params)
    if @surf_school.save
        redirect_to surf_schools_path
    else
        render 'new'
    end
  end

  def show
    if @surf_school.surf_school_reviews.blank?
      @average_surf_school_review = 0
    else
      @average_surf_school_review = @surf_school.surf_school_reviews.average(:rating).round(2)
    end
  end

  def edit
  end

  def update
    if @surf_school.update(surf_school_params)
        redirect_to surf_schools_path
    else
        render 'edit'
    end
  end

  def destroy
    @surf_school.destroy
    redirect_to surf_schools_path
  end

  private

  def surf_school_params
    params.require(:surf_school).permit(:name, :country, :location, :phone, :email, :url)
  end

  def surf_school_find
    @surf_school = SurfSchool.friendly.find(params[:id])
  end

  def correct_user
    unless @surf_school.user_id == current_user.id
      redirect_to surf_schools_path, notice: "Not authorized to perform this action."

      false
    end
  end

end

show.html.erb

<p><%= link_to "Back", surf_schools_path %></p>

</br>

<h5>Average Rating: </h5>
 <div class="average-surf_school_review-rating" data-score=<%= @average_surf_school_review %>></div>
    <%= @average_surf_school_review %> (
    <%= @surf_school.surf_school_reviews.count %>
    <% if @surf_school.surf_school_reviews.count <= 1 %>
        review
    <% else %>
        reviews
    <% end %>
    )

<p><%= link_to "Add Review", new_surf_school_surf_school_review_path(@surf_school) %></p>

</br>

<p><%= render @surf_school.surf_school_reviews %></p>



<script>
    $('.surf_school_review-rating').raty({
        readOnly: true,
        score: function() {
            return $(this).attr('data-score');
        },
        path: '/assets/'
    });
</script>

<script>
    $('.average-surf_school_review-rating').raty({
        readOnly: true,
        path: '/assets/',
        score: function() {
            return $(this).attr('data-score')
        }
    });
</script>

这是我的index.html.erb

<% @surf_schools.each do |surf_school| %>
    <h2><%= surf_school.name %></h2>
    <p>Country: <%= surf_school.country_name %></p>
    <p>Location: <%= surf_school.location %></p>
    <p>Contact #: <%= surf_school.phone %></p>
    <p>E-mail: <%= surf_school.email %></p>
    <p>
        <%= link_to "Visit Site", surf_school.url, target: "_blank" %>
        <%= link_to "Read Reviews", surf_school %>
    </p>
    <% if current_user == surf_school.user %>
        <p>
            <%= link_to "Update", edit_surf_school_path(surf_school) %>
            <%= link_to "Unlist", surf_school, method: :delete, data: {confirm: "Are you sure?"} %>
        </p>
    <% end %>
<% end %>

Answer 1

在索引页面中尝试此操作....

var d = new Date('Mon Feb 08 2016 11:34:25 GMT+0530 (IST)').getTime()  \\output : 1454911465000

希望这对你有用。

如何在索引页面中显示平均评分？

1 个答案: