我试图添加到我的应用程序 'carrierwave' gem.I创建一个类image_uploader未经许可参数:image.Carrierwave
class ImageUploader < CarrierWave::Uploader::Base
storage :file
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
end
,并创建一个模型photo.rb
class Photo < ActiveRecord::Base
mount_uploader :image, ImageUploader
belongs_to :photoable, polymorphic: true
belongs_to :post
end
和photo.rb与有多态性关联post.rb
class Post < ActiveRecord::Base
has_many :comments
has_many :post_attachments
validates :title, :body, presence: true
has_many :photos, as: :photoable
accepts_nested_attributes_for :photos
end
post.rb从photo.rb
params.require(:post).permit(:title, :body, photo_attributes: [:image])
具有嵌套属性,这是局部_form.html.haml从post.rb模型
= form_for [:admin, @post] do |f|
= f.file_field :image
= f.text_field :title, class: "form-control", placeholder: "Title"
= f.text_area :body, rows: 12, class: "form-control", placeholder: "Message"
.pull-right
= f.submit "Send", class: "btn btn-success"
但是当我用图像创建一个帖子时,shell向我展示了一个错误
Unpermitted parameters: image
如何解决?
对不起我的英语不好
UPD
schema.rb
create_table "photos", force: true do |t|
t.datetime "created_at"
t.datetime "updated_at"
t.string "image"
t.integer "photoable_id"
t.string "photoable_type"
end
create_table "posts", force: true do |t|
t.string "title"
t.text "body"
t.datetime "created_at"
t.datetime "updated_at"
end
解决
感谢你的答案,但这个解决方案确实的其他 – vveare138 2015-01-20 21:27:55