ActiveArchiver
Provide export / import to ActiveRecord and support CarrierWave.
Installation
Add this line to your application's Gemfile:
gem 'active_archiver', github:'zaru/active_archiver'And then execute:
$ bundle
Usage
sample code
export = User.find(1).export
User.find(1).destroy
User.find(1)
=> ActiveRecord::RecordNotFound: Couldn't find User with 'id'=1
User.import(export)
User.find(1)
=> #<User id: 1, ...>
export
Returns the specified model object as a hash. Images uploaded with CarrierWave are encoded in Base64.
export = User.last.export
=> {:attributes=>
{"id"=>3,
"last_name"=>"hoge",
"first_name"=>"piyo",
"email"=>"hogepiyo@example.com",
"created_at"=>Sun, 06 Nov 2016 21:04:11 JST +09:00,
"updated_at"=>Tue, 22 Nov 2016 12:16:28 JST +09:00},
:associations=>[]}If you want to export related models as well
export = User.last.export(includes: [:photos])
=> {:attributes=>
{"id"=>3,
"last_name"=>"hoge",
"first_name"=>"piyo",
"email"=>"hogepiyo@example.com",
"created_at"=>Sun, 06 Nov 2016 21:04:11 JST +09:00,
"updated_at"=>Tue, 22 Nov 2016 12:16:28 JST +09:00},
:associations=>
[{:model_name=>"Photo",
:association_name=>:photos,
:attributes=>
{"id"=>57,
"user_id"=>3,
"image"=>
{:url=>"https://example.com/uploads/hoge.png",
:file_name=>"hoge.png",
:blob=>
"data:image/png;base64,iVBORw...To specify a nested model.
class User < ApplicationRecord
has_many :photos
has_many :pets
end
class Pet < ApplicationRecord
has_many :pet_photos
end
export = User.last.export(includes: [:photos, pets:[:pet_photos]])
import
User.import(export)
archive
Write the temporary file.
Hoge.find(1).archive
=> #<File:/tmp/20161125-12571-ak10w5.json (closed)>
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/zaru/active_archiver.