我正在使用 Carrierwave gem 将附件模块添加到我的应用程序中。为此,我创建了一个模型关注点,命名Attachable
如下:
module Attachable
extend ActiveSupport::Concern
included do
has_many :attachments, as: :attachable, dependent: :destroy
accepts_nested_attributes_for :attachments
end
end
我正在调用我的帖子模型:
class Post < ActiveRecord::Base
include Attachable
end
当它可以正常保存新帖子时:
def create
@post = current_user.posts.new( post_params )
if @post.save
redirect_to post_path(@post.slug)
else
@categories = Term.get_category
render :new
end
end
当我更新时,它实际上复制了我的条目(数据库):
def update
@post.clean_taxonomies
if @post.update( post_params )
redirect_to post_path(@post.slug)
else
@categories = Term.get_category
render :edit
end
end
编辑时,它会重新填充所有附件标题(字段名称:我表中的字符串),但由于它无法将文件名重新填充到 中input field
,所以当我保存修改时,它会使用空文件复制附件的数量。
仅在已定义附件的情况下,如何解决该问题并上传/保存附件?
谢谢
编辑:
这是我的视图源posts/edit.html.haml
(与 new.html.haml 相同):
= form_for @product, url: product_path(@product.slug), html: { multipart: true } do |f|
= f.fields_for :attachments do |attachment|
.row.attachment
.col-sm-6
= attachment.label :name, 'Filename'
= attachment.text_field :name, class: 'form-control'
.col-sm-5.col-xs-9
= attachment.label :file, 'File'
= attachment.file_field :file, class: 'form-control'
.col-sm-1.col-xs-1
%a.remove-attachment{ href: '#' }
%i.icon-remove-circle.icon-2x