Save docx file using this gem about pandoc-ruby

[jmuheim]

I'm doing it like this:

# config/initializers/action_controller.rb
# Inspired by https://github.com/karnov/htmltoword/blob/master/lib/htmltoword/action_controller.rb
require 'rack/test'
require 'action_controller'

Mime::Type.register 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', :docx

ActionController::Renderers.add :docx do |filename, options|
  # Converting works great except < and > are escaped in codes!
  # http://stackoverflow.com/questions/30916575/converting-markdown-to-docx-using-pandoc-and-signs-in-code-is-translated-to
  # https://github.com/alphabetum/pandoc-ruby/issues/14
  document = PandocRuby.convert render_to_string(options), to: :docx
  send_data document, filename:    "#{filename}.docx",
                      type:        Mime::DOCX,
                      disposition: 'attachment'
end

module ActionController
  # For respond_with default
  class Responder
    def to_docx
      if @default_response
        @default_response.call(options)
      else
        controller.render({ docx: controller.action_name }.merge(options))
      end
    end
  end
end

Now you can simply use views that create markdown, e.g. app/views/users/show.docx.erb:

# Some title

## Hello, <%= user.name %>!

This is a paragraph.

I guess by tweaking the PandocRuby options you can easily provide HTML instead of markdown (just change the input format option).

[skarmakar]

@jmuheim is it possible apply css styling for html to docx conversion? as far I have checked with inline css, it does not work. I found --css option in pandoc documentation, but nothing mentioned whether applicable for docx.

[jmuheim]

I didn't check this out myself yet, but you can specify a template to be used:

pandoc -S --reference-docx twocolumns.docx -o UsersGuide.docx README

See http://pandoc.org/demos.html.