Rails，Paperclip没有validation内容类型“application / octet-stream”？

我正在使用paperclip上传mime类型“application / octet-stream”的文件，但它们没有正确validation。

在控制器中，当我调用replay.save! ，我收到以下错误：

 Validation failed: r_file has contents that are not what they are reported to be, r_file is invalid, r_file content type is invalid 

这是模型：

 class Replay < ApplicationRecord has_attached_file :r_file validates_attachment_content_type :r_file, content_type: { content_type: "application/octet-stream" } end 

和重放控制器中的create方法：

 def create @replay = Replay.new(replay_params) if @replay.save # This never runs because it won't validate. puts "REPLAY SAVED." redirect_to @replay else puts "REPLAY NOT SAVED." render 'new' end end 

我检查了我试图上传的文件的mime类型，它肯定是"application/octet-stream" 。 Paperclip只是错误地读取文件类型吗？

编辑：

这是架构：

 ActiveRecord::Schema.define(version: 20161203161351) do create_table "replays", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8" do |t| t.string "map" t.datetime "created_at", null: false t.datetime "updated_at", null: false t.string "r_file_file_name" t.string "r_file_content_type" t.integer "r_file_file_size" t.datetime "r_file_updated_at" end end 

Answer 1

validationrails Video / Image中的所有格式

 validates_attachment_content_type :media, content_type: [ 'image/jpg', 'image/jpeg', 'image/pjpeg', 'image/png', 'image/x-png', 'video/avi', 'video/mov', 'video/mp4', 'video/x-flv', 'video/3gpp', 'video/quicktime', 'video/x-msvideo', 'video/x-ms-wmv', 'flv-application/octet-stream', 'application/octet-stream', 'video/x-flv', 'video/mpeg', 'video/mpeg4', 'video/x-la-asf', 'video/x-ms-asf' ], :message => 'file type is not allowed'