我不确定它的图像是否有效!
这是在我的User.rb中,我没有收到任何错误,只是一张空白图片!请让我知道如何解决这个问题!
class User < ActiveRecord::Base
has_secure_password
validates :email, :name, presence: true, uniqueness: true
validates_inclusion_of :age, in: 10..100
validates :password, presence: true
has_attached_file :profile_picture,
:path => ":rails_root/public/system/:attachment/:id/:style/:filename",
:url => "/system/:attachment/:id/:style/:filename",
:storage => :fog,
:styles => { :medium => "300x300>", :thumb => "100x100>" },
:default_url => "C:\row\website\public\images"
end
这是我的Development.rb,
Rails.application.configure do
config.cache_classes = false
config.eager_load = false
config.consider_all_requests_local = true
config.action_controller.perform_caching = false
config.action_mailer.raise_delivery_errors = false
config.active_support.deprecation = :log
config.active_record.migration_error = :page_load
config.assets.debug = true
config.assets.digest = true
config.assets.raise_runtime_errors = true
Paperclip.options[:command_path] = "C:\ImageMagick"
端
答案 0 :(得分:0)
Windows 7的回形针
如果您使用Windows 7+
作为开发环境,则可能需要手动安装file.exe
应用程序。 Paperclip 4+中的文件欺骗系统依赖于此;如果您没有工作,您将收到验证失败:上传文件的扩展名与其内容不符。错误。
要手动安装,您应执行以下操作:
下载&amp;从this URL安装文件 要进行测试,您可以使用以下内容:无标题
Paperclip作为gem发布,应该在你的应用中使用它。
接下来,您需要与您的环境集成 - 最好通过PATH变量,或通过更改您的config / environments / development.rb文件
PATH
1. Click "Start"
2. On "Computer", right-click and select "Properties"
3. In properties, select "Advanced System Settings"
4. Click the "Environment Variables" button
5. Locate the "PATH" var - at the end, add the path to your newly installed `file.exe` (typically `C:\Program Files (x86)\GnuWin32\bin`)
6. Restart any CMD shells you have open & see if it works
OR
环境
1. Open `config/environments/development.rb`
2. Add the following line: `Paperclip.options[:command_path] = 'C:\Program Files (x86)\GnuWin32\bin'`
3. Restart your Rails server
Either of these methods will give your Rails setup access to the file.exe functionality, this providing the ability to check the contents of a file (fixing the spoofing problem)
在Gemfile中包含gem:
gem "paperclip", "~> 4.2"
在模型中
class User < ActiveRecord::Base
has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png", :path => ":rails_root/public/system/:class/:attachment/:id_partition/:style/:filename"
validates_attachment_content_type :avatar, :content_type => /\Aimage\/.*\Z/
end
移植
class AddAvatarColumnsToUsers < ActiveRecord::Migration
def self.up
add_attachment :users, :avatar
end
def self.down
remove_attachment :users, :avatar
end
end
浏览
<%= form_for @user, :url => users_path, :html => { :multipart => true } do |form| %>
<%= form.file_field :avatar %>
<% end %>
控制器
def create
@user = User.create( user_params )
end
private
# Use strong_parameters for attribute whitelisting
# Be sure to update your create() and update() controller methods.
def user_params
params.require(:user).permit(:avatar)
end
显示视图
<%= image_tag @user.avatar.url %>
<%= image_tag @user.avatar.url(:medium) %>
<%= image_tag @user.avatar.url(:thumb) %>
对于FOG
config/environments/*.rb
上的 config.paperclip_defaults
个文件,当您的Rails应用启动时,这些文件将合并到Paperclip::Attachment.default_options
。一个例子:
module YourApp
class Application < Rails::Application
# Other code...
config.paperclip_defaults = {:storage => :fog, :fog_credentials => {:provider => "Local", :local_root => "#{Rails.root}/public"}, :fog_directory => "", :fog_host => "localhost"}
end
end
它将在win 7中起作用回形针