refile simple_form undefined方法attachment_field

我正在尝试连接我的视图，我收到以下错误：

这是我的模特：

class Job < ActiveRecord::Base acts_as_paranoid acts_as_taggable acts_as_taggable_on :languages belongs_to :company belongs_to :category validates :title, :location, :category, :language_list, :short_description, :description, :application_process, presence: true end class Company < ActiveRecord::Base acts_as_paranoid has_many :jobs attachment :company_logo, type: :image validates :name, :url, :email, presence: true end 

和simple_form视图（忽略binding.pry）

 = render layout: 'header' do = simple_form_for(@job) do |j| div[class='panel-heading'] h3[class='panel-title'] |Position Details div[class='panel-body'] = j.input :title = j.input :location = j.association :category, as: :radio_buttons = j.input :language_list, as: :check_boxes, collection: @tags = j.input :short_description = j.input :description, input_html: { class: 'textarea-height wysihtml5' } = j.input :application_process div[class='panel-heading'] h3[class='panel-title'] |Company Details div[class='panel-body'] = j.simple_fields_for :company do |jc| = jc.input :name = binding.pry = jc.input :company_logo, as: :attachment = jc.input :url = jc.input :email div[class='panel-heading panel-heading-info'] h3[class='panel-title'] |Would you like your job posting featured? div[class='panel-body'] p |Featured posted are promoted with additional design elements to grab the job seeker's attention. This additional marketing capability can be purchased for an additonal $#{AppConfig.product['settings']['job_base_featured_price']}. = j.input :is_featured = j.button :button, type: 'button', class: 'btn-primary' do = job_posting_button_step_label => i[class='fa fa-arrow-circle-right'] 

虽然我一直在解析文档，但我似乎无法弄清楚为什么attachment_field是未定义的。

另外，我有一个初始化程序refile.rb设置如下：

 require 'refile/rails' require 'refile/simple_form' 

我想知道文档是否搞砸了或者simple_form部分是不是因为如果我将其切换为：

 = jc.input :company_logo, as: :file, direct: true, presigned: true 

Answer 1

经过一场漫长的战斗，我在这里找到了解决这种情况的方法。 首先，我在Rails 3中找到了带有Bootstrap的simple_form_for的 SOpost文件上传按钮，这导致我尝试https://github.com/jasny/bootstrap/ 。 Jasny有一些甜蜜的文件上传者，但所有的gem都已过时了。 [注意，我希望通过补丁来解决这个问题，因为我本周有时间]所以我将Jasny文件下载到供应商javascripts和stylesheets文件夹中，如下所示：

我还使用https://rails-assets.org/在我的gemfile中引入holder.js：

 source 'https://rails-assets.org' do gem 'rails-assets-holderjs' end 

接下来，我使用以下内容更新了我的application.js文件：

 //= require refile //= require holderjs //= require jasny-bootstrap 

接下来，我需要在我的sass设置中使用样式：

 // External Libraries Built For Bootstrap in Vendor @import 'awesome-bootstrap-checkbox'; @import 'jasny-bootstrap'; 

这给了我以简单forms修改文件上传器的工具：

 = j.simple_fields_for :company do |jc| = jc.input :name div label = t('simple_form.labels.company.logo') div[class="form-group fileinput fileinput-new" data-provides="fileinput"] div[class="fileinput-new thumbnail" style="width: 200px; height: 200px;"] img[data-src="holder.js/200x200" alt="..."] div[class="fileinput-preview fileinput-exists thumbnail" style="max-width: 200px; max-height: 200px;"] div span[class="btn btn-default btn-file"] span[class="fileinput-new"] |Select image span[class="fileinput-exists"] |Change = jc.input_field :logo, direct: true, presigned: true a[href="#" class="btn btn-default fileinput-exists" data-dismiss="fileinput"] |Remove p[class="help-block"] = t('simple_form.hints.company.logo') = jc.input :url = jc.input :email 

这导致了漂亮的上传者！

我想将此重构为部分，但我会等到我有另一个文件上传表单来解决这个问题。 另外，如果您查看上面的代码，我遵循simple_form使用的语言环境约定。 不漂亮，但它的工作原理。