I am trying to hook up refile to my view and I am getting the following error:
这是我的模型：
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（忽略绑定.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未定义。
另外，我有一个初始化程序 refile.rb 设置如下：
require 'refile/rails'
require 'refile/simple_form'
我想知道文档是否混乱或者 simple_form 部分是否无聊，因为如果我将其切换为：
= jc.input :company_logo, as: :file, direct: true, presigned: true
经过长时间的战斗，我找到了解决这种情况的方法。首先我发现了这个帖子Rails 3 中使用 Bootstrap 设计 simple_form_for 的文件上传按钮样式 https://stackoverflow.com/questions/14509449/styling-file-upload-button-for-simple-form-for-with-bootstrap-in-rails-3这促使我尝试https://github.com/jasny/bootstrap/ https://github.com/jasny/bootstrap/。 Jasny 有一些不错的文件上传器，但所有的精华都已经过时了。 [注意，我希望通过补丁来解决这个问题，因为我这周有时间]所以我将 Jasny 文件下载到供应商 javascripts 和 stylesheets 文件夹中，如下所示：
我也用过https://rails-assets.org/ 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 application.js 文件：
//= require refile
//= require holderjs
//= require jasny-bootstrap
接下来，我需要 sass 设置中的样式：
// External Libraries Built For Bootstrap in Vendor
@import 'awesome-bootstrap-checkbox';
@import 'jasny-bootstrap';
这为我提供了以简单形式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
这导致了一个漂亮的上传器！
我想将其重构为部分内容，但我会等到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 使用的区域设置约定。不漂亮但有效。