使用carrierwave上传音频文件

Question

我在使用carrierwave gem上传音频时遇到问题，当我发布音频文件时，所有显示的都是音频网址链接。第一次使用宝石而不确定我是否正确使用了载波。只是试图在节目页面上显示音频文件。

  class AudioUploader < CarrierWave::Uploader::Base

  # Include RMagick or MiniMagick support:
  # include CarrierWave::RMagick
  # include CarrierWave::MiniMagick
  storage :file
  include CarrierWave::Audio

  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

end

show.html.erb

<p id="notice"><%= notice %></p>

<p>
  <strong>Title:</strong>
  <%= @music.title %>
  <%= @music.audio.url() %>
</p>

<%= link_to 'Edit', edit_music_path(@music) %> |
<%= link_to 'Back', musics_path %>

music.rb

class Music < ApplicationRecord
    mount_uploader :audio, AudioUploader
end

模式

ActiveRecord::Schema.define(version: 20170606155943) do

  create_table "musics", force: :cascade do |t|
    t.string   "title"
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
    t.string   "audio"
  end

end

音乐控制器

class MusicsController < ApplicationController
  before_action :set_music, only: [:show, :edit, :update, :destroy]

  # GET /musics
  # GET /musics.json
  def index
    @musics = Music.all
  end

  # GET /musics/1
  # GET /musics/1.json
  def show
  end

  # GET /musics/new
  def new
    @music = Music.new
  end

  # GET /musics/1/edit
  def edit
  end

  # POST /musics
  # POST /musics.json
  def create
    @music = Music.new(music_params)

    respond_to do |format|
      if @music.save
        format.html { redirect_to @music, notice: 'Music was successfully created.' }
        format.json { render :show, status: :created, location: @music }
      else
        format.html { render :new }
        format.json { render json: @music.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /musics/1
  # PATCH/PUT /musics/1.json
  def update
    respond_to do |format|
      if @music.update(music_params)
        format.html { redirect_to @music, notice: 'Music was successfully updated.' }
        format.json { render :show, status: :ok, location: @music }
      else
        format.html { render :edit }
        format.json { render json: @music.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /musics/1
  # DELETE /musics/1.json
  def destroy
    @music.destroy
    respond_to do |format|
      format.html { redirect_to musics_url, notice: 'Music was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_music
      @music = Music.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def music_params
      params.require(:music).permit(:title, :audio)
    end
end