Class: Htmltoword::Document

Inherits:
Object
  • Object
show all
Extended by:
HtmltowordHelper
Defined in:
lib/htmltoword/document.rb

Constant Summary collapse

DOC_XML_FILE = 
"word/document.xml"
BASIC_PATH = 
::Htmltoword.root
FILE_EXTENSION = 
".docx"
XSLT_TEMPLATE = 
File.join(BASIC_PATH, 'xslt', 'html_to_wordml.xslt')

Class Method Summary collapse

Instance Method Summary collapse

Methods included from HtmltowordHelper

replace_values, template_file

Constructor Details

#initialize(template_path, file_name) ⇒ Document

Returns a new instance of Document.



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# File 'lib/htmltoword/document.rb', line 26

def initialize(template_path, file_name)
  @file_name = file_name
  @replaceable_files = {}
  @template_path = template_path
end

Class Method Details

.create(content, file_name) ⇒ Object 



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# File 'lib/htmltoword/document.rb', line 12

def create content, file_name
  word_file = new(template_file, file_name)
  word_file.replace_file content
  word_file.save
end

.create_with_content(template, file_name, content, set = nil) ⇒ Object 



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# File 'lib/htmltoword/document.rb', line 18

def create_with_content template, file_name, content, set=nil
  word_file = new(template_file("#{template}#{FILE_EXTENSION}"), file_name)
  content = replace_values(content, set) if set
  word_file.replace_file content
  word_file.save
end

Instance Method Details

#file_name ⇒ Object 



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# File 'lib/htmltoword/document.rb', line 32

def file_name
  @file_name
end

#replace_file(html, file_name = DOC_XML_FILE) ⇒ Object 



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# File 'lib/htmltoword/document.rb', line 62

def replace_file html, file_name=DOC_XML_FILE
  source = Nokogiri::HTML(html.gsub(/>\s+</, "><"))
  xslt = Nokogiri::XSLT( File.read(XSLT_TEMPLATE) )
  source = xslt.transform( source ) unless (source/"/html").blank?
  @replaceable_files[file_name] = source.to_s
end

#save ⇒ Object

It creates missing folders if needed, creates a new zip/word file on the specified location, copies all the files from the template word document and replace the content of the ones to be replaced. It will create a tempfile and return it. The rails app using the gem should decide what to do with it.



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# File 'lib/htmltoword/document.rb', line 44

def save
  Tempfile.open([file_name, FILE_EXTENSION], type: 'application/zip') do |output_file|
    Zip::File.open(@template_path) do |template_zip|
      Zip::OutputStream.open(output_file.path) do |out|
        template_zip.each do |entry|
          out.put_next_entry entry.name
          if @replaceable_files[entry.name]
            out.write(@replaceable_files[entry.name])
          else
            out.write(template_zip.read(entry.name))
          end
        end
      end
    end
    output_file
  end
end