ActiveAdminImporter

Simple CSV imports for active_admin, that (shouldn't) destroy your servers memory.

Features / differences from similar gems

Parses the CSV file one row at a time
Allows you to override the view to customize the form
Access to the current controller from the import definition
Can define any number of imports per resource

Examples

::ActiveAdmin.register Product do
  define_import_for :products do
    each_row do |params, import|
      product_attributes = params.slice(*[:name, :price])
      product_attributes[:user_id] = import.controller.current_user.id
      import.model.create!(product_attributes)
    end
  end

  #Example: require headers to be present
  define_import_for :products_on_sale do
    required_headers "sale_price", "price"

    each_row do |params, import|
      product_attributes = params.slice(*[:name, :price, :sale_price])
      product_attributes[:user_id] = import.controller.current_user.id
      import.model.create!(product_attributes)
    end
  end

  # Example: using a custom view
  # assume the view has a dropdown which allows you to select a particular store during import
  define_import_for :products_for_store do
    view "myactiveadmin/products/upload_products_for_store_csv"

    each_row do |params, import|
      product_attributes = params.slice(*[:name, :price, :sale_price])
      product_attributes[:user_id] = import.controller.current_user.id
      product_attributes[:store_id] = import.controller.params["store_id"]
      import.model.create!(product_attributes)
    end
  end

  # Example: using a Trax::Core transformer class,
  # or transformer that responds to to_hash
  define_import_for :products_for_store do
    view "myactiveadmin/products/upload_products_for_store_csv"
    transformer ::ProductForStoreTransformer

    each_row do |params, import|
      product_attributes[:user_id] = import.controller.current_user.id
      product_attributes[:store_id] = import.controller.params["store_id"]
      import.model.create!(product_attributes)
    end
  end

  # Example: using transform as callback
  define_import_for :products_for_store do
    view "myactiveadmin/products/upload_products_for_store_csv"
    transform { |row| ::ProductForStoreTransformer.new(row).to_hash }

    each_row do |params, import|
      product_attributes[:user_id] = import.controller.current_user.id
      product_attributes[:store_id] = import.controller.params["store_id"]
      import.model.create!(product_attributes)
    end
  end
end

Installation

Add this line to your application's Gemfile:

gem 'active_admin_importer'

And then execute:

$ bundle

Or install it yourself as:

$ gem install active_admin_importer

Development

After checking out the repo, run bin/setup to install dependencies. Then, run bundle exec rspec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/active_admin_importer.

License

The gem is available as open source under the terms of the MIT License.