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Forked to store files in a database table

tag: v2.1.5

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Octocat-spinner-32 generators
Octocat-spinner-32 lib
Octocat-spinner-32 shoulda_macros
Octocat-spinner-32 tasks
Octocat-spinner-32 test
Octocat-spinner-32 .gitignore
Octocat-spinner-32 LICENSE Moved the License into its own file April 18, 2008
Octocat-spinner-32 README.rdoc
Octocat-spinner-32 Rakefile
Octocat-spinner-32 init.rb
Octocat-spinner-32 paperclip.gemspec
README.rdoc

Paperclip

Paperclip is intended as an easy file attachment library for ActiveRecord. The intent behind it was to keep setup as easy as possible and to treat files as much like other attributes as possible. This means they aren't saved to their final locations on disk, nor are they deleted if set to nil, until ActiveRecord::Base#save is called. It manages validations based on size and presence, if required. It can transform its assigned image into thumbnails if needed, and the prerequisites are as simple as installing ImageMagick (which, for most modern Unix-based systems, is as easy as installing the right packages). Attached files are saved to the filesystem and referenced in the browser by an easily understandable specification, which has sensible and useful defaults.

See the documentation for the has_attached_file method for options.

Usage

In your model:

class User < ActiveRecord::Base
  has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100>" }
end

In your migrations:

class AddAvatarColumnsToUser < ActiveRecord::Migration
  def self.up
    add_column :users, :avatar_file_name,    :string
    add_column :users, :avatar_content_type, :string
    add_column :users, :avatar_file_size,    :integer
    add_column :users, :avatar_updated_at,   :datetime
  end

  def self.down
    remove_column :users, :avatar_file_name
    remove_column :users, :avatar_content_type
    remove_column :users, :avatar_file_size
    remove_column :users, :avatar_updated_at
  end
end

In your edit and new views:

<% form_for :user, @user, :url => user_path, :html => { :multipart => true } do |form| %>
  <%= form.file_field :avatar %>
<% end %>

In your controller:

def create
  @user = User.create( params[:user] )
end

In your show view:

<%= image_tag @user.avatar.url %>
<%= image_tag @user.avatar.url(:medium) %>
<%= image_tag @user.avatar.url(:thumb) %>

Contributing

If you'd like to contribute a feature or bugfix, thanks! To make sure your fix/feature has a high chance of being added, please read the following guidelines:

  1. Ask on the mailing list, or post a ticket in Lighthouse.

  2. Make sure there are tests! I will not accept any patch that is not tested. It's a rare time when explicit tests aren't needed. If you have questions about writing tests for paperclip, please ask the mailing list.

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