Question

我正在尝试上传文件并将其保存到服务器，文件类型将是文档，主要是doc / docx或Pages'file

为什么文件未保存，型号为Grade，属性为Answer？

这是我的Schema.rb文件

ActiveRecord::Schema.define(:version => 20110920230706) do

  create_table "assignments", :force => true do |t|
    t.string   "name"
    t.string   "instructions"
    t.date     "due"
    t.integer  "scribd_id"
    t.decimal  "score"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.binary   "handout"
  end

  create_table "grades", :force => true do |t|
    t.integer  "assignment_id"
    t.integer  "user_id"
    t.integer  "scribd_id"
    t.decimal  "score"
    t.text     "note"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.string   "answer_file_name"
    t.string   "answer_content_type"
    t.integer  "answer_file_size"
    t.datetime "answer_updated_at"
  end

  create_table "users", :force => true do |t|
    t.string   "email",                                 :default => "", :null => false
    t.string   "encrypted_password",     :limit => 128, :default => "", :null => false
    t.string   "reset_password_token"
    t.datetime "reset_password_sent_at"
    t.datetime "remember_created_at"
    t.integer  "sign_in_count",                         :default => 0
    t.datetime "current_sign_in_at"
    t.datetime "last_sign_in_at"
    t.string   "current_sign_in_ip"
    t.string   "last_sign_in_ip"
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  add_index "users", ["email"], :name => "index_users_on_email", :unique => true
  add_index "users", ["reset_password_token"], :name => "index_users_on_reset_password_token", :unique => true

end

Grade.rb

class Grade < ActiveRecord::Base
  belongs_to :assignment

  has_attached_file :answer

end

Show.html.erb

<%= stylesheet_link_tag "assignments" %>
<p id="notice"><%= notice %></p>
<div class="show">
  <h2 id="title"><%= @assignment.name %></h2>
  <div id="directions_container">
    <h3>Directions - <div id="directions"><%= @assignment.instructions %></div> </h3>


    <div class="turn_in_container">
    <div class="turn_in_box prepare_for_turn_in" id="turn_in_box">
        <div id="label">
          <h4 id="turn_in_assignment">Turn In Assignment</h4>
          <h6 id="drag">(You can just drag it in here)</h6>
        </div>
      </div>
  <%= form_for @grade, :html => { :multipart => true, :id => "form"} do |f| %>
    <%= f.file_field :answer, :id => "file" %>
  <% end %>
  </div>
</div>

assignments.js.coffee

$(document).ready ->
  $("#file").mouseenter ->
    $("#turn_in_box").css "border", "2px solid #D9D9D9"
    $("#turn_in_box").css "background", "#D9D9D9"
    $("#turn_in_box").css "color", "#393939"
    $("#turn_in_box").css "cursor", "pointer"
    $("#turn_in_box").css "box-shadow" ,"0px 0px 0px transparent"

  $("#file").mouseleave ->
    $("#turn_in_box").css "border", "2px solid #D9D9D9"
    $("#turn_in_box").css "background", "#393939"
    $("#turn_in_box").css "color", "#D9D9D9"
    $("#turn_in_box").css "cursor", "default"
  $("#file").bind 'dragover', (evt) -> 
    evt.stopPropagation()
    evt.preventDefault()
  $("#file").bind 'drop', ->
    $("#drag").css "display", "none"
    $("#turn_in_assignment").text "Turning In Assignment..."
    $("#form").submit()

development.log

Started GET "/assignments/2" for 127.0.0.1 at 2011-09-20 16:08:38 -0700
  Processing by AssignmentsController#show as HTML
  Parameters: {"id"=>"2"}
  ←[1m←[36mUser Load (0.0ms)←[0m  ←[1mSELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1←[0m
  ←[1m←[35mAssignment Load (0.0ms)←[0m  SELECT "assignments".* FROM "assignments" WHERE "assignments"."id" = ? LIMIT 1
  ←[1m←[36mGrade Load (0.0ms)←[0m  ←[1mSELECT "grades".* FROM "grades" WHERE "grades"."assignment_id" = 2 AND "grades".
Rendered assignments/show.html.erb within layouts/application (50.0ms)
Completed 200 OK in 183ms (Views: 132.0ms | ActiveRecord: 1.0ms)


Started GET "/assets/assignments.css?body=1" for 127.0.0.1 at 2011-09-20 16:08:39 -0700
Served asset /assignments.css - 304 Not Modified (0ms)


Started GET "/assets/jquery.js?body=1" for 127.0.0.1 at 2011-09-20 16:08:39 -0700
Served asset /jquery.js - 304 Not Modified (1ms)


Started GET "/assets/grades.css?body=1" for 127.0.0.1 at 2011-09-20 16:08:39 -0700
Served asset /grades.css - 304 Not Modified (0ms)


Started GET "/assets/application.css?body=1" for 127.0.0.1 at 2011-09-20 16:08:39 -0700
Served asset /application.css - 304 Not Modified (0ms)


Started GET "/assets/jquery_ujs.js?body=1" for 127.0.0.1 at 2011-09-20 16:08:39 -0700
Served asset /jquery_ujs.js - 304 Not Modified (0ms)


Started GET "/assets/assignments.js?body=1" for 127.0.0.1 at 2011-09-20 16:08:39 -0700
Served asset /assignments.js - 304 Not Modified (1ms)


Started GET "/assets/assignments.js.js?body=1" for 127.0.0.1 at 2011-09-20 16:08:39 -0700
Served asset /assignments.js.js - 304 Not Modified (0ms)


Started GET "/assets/grades.js?body=1" for 127.0.0.1 at 2011-09-20 16:08:39 -0700
Served asset /grades.js - 304 Not Modified (0ms)


Started GET "/assets/application.js?body=1" for 127.0.0.1 at 2011-09-20 16:08:39 -0700
Served asset /application.js - 304 Not Modified (0ms)


Started PUT "/grades/2" for 127.0.0.1 at 2011-09-20 16:08:47 -0700
  Processing by GradesController#update as HTML
  Parameters: {"utf8"=>"Γ£ô", "authenticity_token"=>"/MpatBt5HIrsYPF0PKeyhfsQjY+Z1yDXMRtZjW+fHA8=", "id"=>"2"}
  ←[1m←[35mGrade Load (0.0ms)←[0m  SELECT "grades".* FROM "grades" WHERE "grades"."id" = ? LIMIT 1  [["id", "2"]]
[paperclip] Saving attachments.
Redirected to http://localhost:3000/grades/2
Completed 302 Found in 51ms


Started GET "/grades/2" for 127.0.0.1 at 2011-09-20 16:08:47 -0700
  Processing by GradesController#show as HTML
  Parameters: {"id"=>"2"}
  ←[1m←[36mGrade Load (1.0ms)←[0m  ←[1mSELECT "grades".* FROM "grades" WHERE "grades"."id" = ? LIMIT 1←[0m  [["id", "2"
Rendered grades/show.html.erb within layouts/application (11.0ms)
Completed 200 OK in 28ms (Views: 25.0ms | ActiveRecord: 1.0ms)

文件上传 - 表格提交时没有保存文件？

0 个答案: