Class: Htmltoword::Document

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



41
42
43
44
45
 
# File 'lib/htmltoword.rb', line 41

def initialize(template_path, file_name)
  @file_name = file_name
  @replaceable_files = {}
  @template_zip = Zip::ZipFile.open(template_path)
end

Class Method Details

.create(content, file_name) ⇒ Object 



27
28
29
30
31
 
# File 'lib/htmltoword.rb', line 27

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 



33
34
35
36
37
38
 
# File 'lib/htmltoword.rb', line 33

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 



47
48
49
 
# File 'lib/htmltoword.rb', line 47

def file_name
  @file_name
end

#replace_file(html, file_name = DOC_XML_FILE) ⇒ Object 



76
77
78
79
80
81
 
# File 'lib/htmltoword.rb', line 76

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.



59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
 
# File 'lib/htmltoword.rb', line 59

def save
  output_file = Tempfile.new([file_name, FILE_EXTENSION], type: 'application/zip')
  Zip::ZipOutputStream.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
  @template_zip.close
  output_file.close
  return output_file
end