我正在尝试遵循教程Dynamic multiple image uploads with Ruby on Rails,它为照片创建一个新模型并将它们与另一个模型相关联。复制并粘贴所有代码后,我收到“AssociationTypeMismatch”错误,如下所示。
ActiveRecord::AssociationTypeMismatch in AdminForksController#update
Photo(#2176152540) expected, got Array(#2148417160)
app/controllers/admin_forks_controller.rb:23:in `update'
{ "commit"=>"update",
"fork"=>{"position"=>"",
"name"=>"FORK",
"brand"=>"",
"photos"=>{"data"=>#<ActionDispatch::Http::UploadedFile:0x103634328 @headers="Content-
Disposition: form-data; name=\"fork[photos][data]\"; filename=\"marty.jpg\"\r\nContent-Type:
image/jpeg\r\n", @tempfile=#<File:/var/folders/cZ/cZVO8X55FeynZw5cHRz1UE+++TI
/-Tmp/RackMultipart20110716-18721-16ttjsd-0>, @content_type="image/jpeg",
@original_filename="marty.jpg">},
"authenticity_token"=>"iSzZxyzTe/LDLIf4cQiYBGLIk96INnKCP3SC5b5MXHw=",
"utf8"=>"?",
"id"=>"7"}
我的叉子模型如下所示:
class Fork < ActiveRecord::Base
has_many :photos
accepts_nested_attributes_for :photos, :allow_destroy => true
end
我的照片模型如下所示:
class Photo < ActiveRecord::Base
belongs_to :fork
has_attached_file :data
end
它看起来像:photos
作为一个数组传递,并且:fork
期待它。我该如何解决这个问题?
更新
问题已解决(请参阅答案)。但是,这两个变量:fork
和@fork
有何不同?