Question

我有照片模型和房间模型，我正在使用带有活动管理员的回形针宝石。在照片模型中，我有两列“image”和“smallimage”。出于性能原因，我想在房间索引视图中使用“smallimage”，并在房间显示视图中使用“图像”。使用activeadmin一切都很完美，但我有问题要调用正确的列。

一切都只与图像列完美配合。我已经做了很多事情，但不知何故，我不能调用正确的列，并始终得到错误的说法。如果您需要更多信息，请告诉我。任何提示都非常赞赏！

1）如何只在索引（房间）视图中调用smallimage？

2）如何只在节目（房间）视图中调用图像列？

index.html.erb

<div>
    <% @rooms.where(:active => true).each do |room| %>
        <%= link_to room_path(room) do %>
            <div><%= image_tag room.photos[0].image.url(:thumb) if room.photos.length > 0 %></div>
        <% end %>
    <% end %>
</div>

show.html.erb

<div id="myCarousel" class="carousel slide" data-ride="carousel">
  <!-- Indicators -->
  <% if @photos %>
      <ol class="carousel-indicators">
         <% @photos.each do |photo| %>
            <li data-target="#myCarousel" data-slide-to="<%= photo.id %>"></li>
         <% end %>
     </ol>
   <% end %>

  <!-- Wrapper for slides -->
  <div class="carousel-inner" role="listbox">
      <% if @photos %>
         <% @photos.each do |photo| %>
            <div class="item <%= 'active' if photo.id == @photos[0].id %>">
               <%= image_tag photo.image.url() %>
            </div>
         <% end %>
      <% end %>
  </div>
...
</div>

rooms_controller.rb

  before_action :set_room, only: [:show]

  def index
    sort = params[:sort]
    sort = nil unless sort.in?(['address', 'listing_name', 'nightly_price', 'nightly_price desc', 'reviews'])
    @rooms = Room.order(sort).paginate(page: params[:page], per_page: 12)
  end

  def show
    @photos = @room.photos

    @booked = Reservation.where("room_id = ? AND user_id = ?", @room.id, current_user.id).present? if current_user

    @reviews = @room.reviews
    @hasReview = @reviews.find_by(user_id: current_user.id) if current_user
  end

  private
    def set_room
      @room = Room.find(params[:id])
    end

schema.rb

create_table "photos", force: :cascade do |t|
    t.integer  "room_id"
    t.datetime "created_at",              null: false
    t.datetime "updated_at",              null: false
    t.string   "image_file_name"
    t.string   "image_content_type"
    t.integer  "image_file_size"
    t.datetime "image_updated_at"
    t.string   "smallimage_file_name"
    t.string   "smallimage_content_type"
    t.integer  "smallimage_file_size"
    t.datetime "smallimage_updated_at"
    t.index ["room_id"], name: "index_photos_on_room_id", using: :btree
  end

  create_table "rooms", force: :cascade do |t|
    t.string   "listing_name"
    t.string   "accommodation_type"
    t.integer  "persons"
    t.integer  "property"
    t.integer  "living_area"
    t.text     "rooms_total"
    t.text     "features_short"
    t.string   "pets"
    t.string   "smoking"
    t.string   "check_in"
    t.string   "check_out"
    t.string   "location"
    t.text     "nearby_distance"
    t.text     "features_long"
    t.text     "detailed_description"
    t.text     "house_rules"
    t.string   "address"
    t.text     "video"
    t.integer  "nightly_price"
    t.integer  "hourly_price"
    t.text     "detailed_price"
    t.boolean  "active"
    t.datetime "created_at",           null: false
    t.datetime "updated_at",           null: false
    t.float    "latitude"
    t.float    "longitude"
  end

  add_foreign_key "photos", "rooms"

如何调用照片模型的特定列？

0 个答案: