Module: HtmlToPdf

Defined in:
lib/htmlToPdf.rb,
lib/htmlToPdf/version.rb

Constant Summary collapse

VERSION = 
"0.0.6"

Instance Method Summary collapse

Instance Method Details

#html_to_pdf ⇒ Object 



5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
# File 'lib/htmlToPdf.rb', line 5

def html_to_pdf()
  pdf_options = params[:pdf_options] if params[:pdf_options]
  if request.format == 'application/pdf'
    initialize_downloads(pdf_options)
    FileUtils.mkdir_p(File.join(Rails.root, 'tmp'))
    _source_file = File.join(Rails.root, 'tmp', "#{Time.now.to_i.to_s}.html")
    _destination_file = File.join(Rails.root, 'tmp', "#{@name}.pdf")
    _html = render_to_string(:action => "#{action_name}", :formats => 'html', :layout => @layout )
    if  File.exists?('../public/assets')
      file_content = _html.gsub(/\/assets/, "../public/assets")
    else
      file_content = _html.gsub(/\/assets/, "../app/assets/stylesheets")
    end

    File.open(_source_file, "w+") do |f|
      f.write(file_content)
    end
    spec = Gem::Specification.find_by_name("htmlToPdf")
    gem_root = spec.gem_dir
    gem_lib = gem_root + "/bin"
    lib_path = "#{gem_lib}/wkhtmltopdf"

    `#{lib_path} #{_source_file} #{_destination_file}`
    File.delete(_source_file) if File.exist?(_source_file)
    send_data File.open(_destination_file, "rb") { |f| f.read }, :disposition => 'attachment',:filename => "#{@name}.pdf"
    File.delete(_destination_file)
  end
end

#initialize_downloads(pdf_options) ⇒ Object 



34
35
36
37
38
39
40
41
 
# File 'lib/htmlToPdf.rb', line 34

def initialize_downloads(pdf_options)
  if pdf_options
    @name = pdf_options[:title].nil? ? "#{Time.now.to_i.to_s}" : pdf_options[:title]
    @layout = pdf_options[:layout].nil? ? 'application' : pdf_options[:layout]
  else
    @name = "#{Time.now.to_i.to_s}"
  end
end