Active Admin Axlsx: Office Open XML Spreadsheet Export for Active Admin

If you are using this for commercial purposes, or just want to show your appreciation for the gem, please don't hesitate to make a donation.

IRC:irc.freenode.net / #axlsx

Git:http://github.com/randym/activeadmin-axlsx

Twitter: https://twitter.com/#!/morgan_randy

Google Group: https://groups.google.com/forum/?fromgroups#!forum/axlsx

Author: Randy Morgan

Copyright: 2012 ~ 2013

License: MIT License

Latest Version: 2.1.2

Ruby Version: 1.9.2, 1.9.3, 2.0.0

JRuby Version: 1.9 mode

Rubinius Version: rubinius 2.0.0dev * lower versions may run, this gem always tests against head.

Release Date: 2013.06.02

Synopsis

This gem provides automatic OOXML (xlsx) downloads for Active Admin resources. It lets you harness the full power of Axlsx when you want to but for the most part just stays out of your way and adds a link next to the csv download for xlsx (Excel/numbers/Libre Office/Google Docs)

Usage example: Simply add the following to your Gemfile and you are good to go. All resource index views will now include a link for download directly to xlsx.

gem 'activeadmin-axlsx'

Cool Toys

Here are a few quick examples of things you can easily tweak. Axlsx supports A LOT of the specification so if you are looking to do something adventurous please ping me on irc. (freenode#axlsx)

##localize column headers

#app/admin/posts.rb
ActiveAdmin.register Post do
  config.xlsx_builder.i18n_scope = [:active_record, :models, :posts]
end

##Use blocks for adding computed fields

#app/admin/posts.rb
ActiveAdmin.register Post do
  config.xlsx_builder.column('author_name') do |resource|
    resource.author.name
  end
end

##Change the column header style

#app/admin/posts.rb
ActiveAdmin.register Post do
  config.xlsx_builder.header_style = { :bg_color => 'FF0000',
                                       :fg_color => 'FF' }
end

##Remove columns

#app/admin/posts.rb
ActiveAdmin.register Post do
  config.xlsx_builder.delete_columns :id, :created_at, :updated_at
end

#Using the DSL

Everything that you do with the config'd default builder can be done via the resource DSL.

Below is an example of the DSL

ActiveAdmin.register Post do

  # i18n_scope and header style are set via options
  xlsx(:i18n_scope => [:active_admin, :axlsx, :post],
       :header_style => {:bg_color => 'FF0000', :fg_color => 'FF' }) do

    # Specify that you want to white list column output.
    # whitelist

    # Do not serialize the header, only output data.
    # skip_header

    # deleting columns from the report
    delete_columns :id, :created_at, :updated_at

    # adding a column to the report
    column(:author) { |resource| "#{resource.author.first_name} #{resource.author.last_name}" }

    # creating a chart and inserting additional data with after_filter
    after_filter { |sheet|
      sheet.add_row []
      sheet.add_row ['Author Name', 'Number of Posts']
      data = []
      labels = []
      User.all.each do |user|
        data << user.posts.size
        labels << "#{user.first_name} #{user.last_name}"
        sheet.add_row [labels.last, data.last]
      end
      chart_color =  %w(88F700 279CAC B2A200 FD66A3 F20062 C8BA2B 67E6F8 DFFDB9 FFE800 B6F0F8)
      sheet.add_chart(::Axlsx::Pie3DChart, :title => "post by author") do |chart|
        chart.add_series :data => data, :labels => labels, :colors => chart_color
        chart.start_at 4, 0
        chart.end_at 7, 20
      end
    }

    # iserting data with before_filter
    before_filter do |sheet|
      sheet.add_row ['Created', Time.zone.now]
      sheet.add_row []
    end
  end
end

#Specs

Running specs for this gem requires that you construct a rails application. To execute the specs, navigate to the gem directory, run bundle install and run these to rake tasks:

bundle exec rake setup

bundle exec rake

Changelog

2013.10.12

Upgraded to most recent version of Axlsx. This introduces some non-backwards compatible changes and pushes rubyzip up to 1.0.0
Added support for scoped collections #18
Added support to specify whitelist in in configuration. This will clear all columns and you can then specify only the fields you want.
Added support for skip_header in the builder/DSL.
Moved initialization into after config block in an attempt to not crunch assets:precompile

2013.06.02 Release 2.1.2

builder#collection is now set on serialize and is available in before and after filters.
Code cleanup

2013.04.18 Release 2.1.1

Fixed issue with repeating data in sheets across downloads
Updated to use activeadmin 0.6.0+ which supports plugins.

2013.03.21 Release 2.0.1

Fixed an issue with missing objects when using the DSL. Huge thanks to Fivell

2012.11.29 Release 2.0.0

resouce content column are now pre-populated.
added before and after filters
100% spec coverage

2012.11.16

Fixed DSL referencing
Added delete_columns to builder and DSL

#Copyright and License