Error with Roo . Any gems to parse .ods files - ruby-on-rails-3

Question

I am trying to use the roo gem to parse an Openoffice spreadsheet. However I am getting the following error while beginning my localhost
/home/raison/.rvm/gems/ruby-1.9.2-p180/gems/roo-1.9.3/lib/roo/openoffice.rb:3:in `require': no such file to load -- zip/zipfilesystem (LoadError)
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/roo-1.9.3/lib/roo/openoffice.rb:3:in `'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/roo-1.9.3/lib/roo.rb:68:in `require'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/roo-1.9.3/lib/roo.rb:68:in `'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/runtime.rb:68:in `require'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/runtime.rb:66:in `each'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/runtime.rb:66:in `block in require'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/runtime.rb:55:in `each'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/runtime.rb:55:in `require'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler.rb:120:in `require'
from /home/raison/anna/config/application.rb:7:in `'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.8/lib/rails/commands.rb:28:in `require'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.8/lib/rails/commands.rb:28:in `block in '
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.8/lib/rails/commands.rb:27:in `tap'
from /home/raison/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.8/lib/rails/commands.rb:27:in `'
from script/rails:6:in `require'
from script/rails:6:in `'
I already have rubyzip installed. Can anyone help me out here? Also please suggest some alternate gems for parsing .ods files .

Answer 1

In Gemfile
gem 'rubyzip', :require => 'zip/zipfilesystem'

Answer 2

Rspreadsheet allows you to read, modify and write ods files. Here is the example of its basic usage
require 'rspreadsheet'
# initialization
book = Rspreadsheet.open('./test.ods')
sheet = book.worksheets(1)
# get value of a cell B5 (there are more ways to do this)
sheet.B5 # => 'cell value'
sheet[5,2] # => 'cell value'
sheet.rows(5).cells(2).value # => 'cell value'
# set value of a cell B5
sheet.F5 = 'text'
sheet[5,2] = 7
sheet.cells(5,2).value = 1.78
# working with cell format
sheet.cells(5,2).format.bold = true
sheet.cells(5,2).format.background_color = '#FF0000'
# calculating sum of cells in row
sheet.rows(5).cellvalues.sum
sheet.rows(5).cells.sum{ |cell| cell.value.to_f }
# iterating over list of people and displaying the data
total = 0
sheet.rows.each do |row|
puts "Sponsor #{row[1]} with email #{row[2]} has donated #{row[3]} USD."
total += row[3].to_f
end
puts "Totally fundraised #{total} USD"
# saving file
book.save
book.save('different_filename.ods')
The project is under active developments and I use it in my projects. Any comments are welcomed. If you are migging a feature, you may fill in the request and it will be implemented.