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Wicked_pdf not working - Ruby on Rails

I want to create a PDF from an html document in a rails application. So I decided to use wicked_pdf. But that does not work. I tried to integrate it into the application, but it did not work. So I thought about trying to figure out if this works in the rails console, and I will integrate it into the application.

That's what I came across the console

wp = WickedPdf.new => #<WickedPdf:0x4e7eea0 @exe_path="C:\\wkhtmltopdf\\wkhtmltopdf.exe"> HTML_DOCUMENT = "<html><body>Hello World</body></html>" => "<html><body>Hello World</body></html>" pdf = wp.pdf_from_string HTML_DOCUMENT "***************C:\\wkhtmltopdf\\wkhtmltopdf.exe - - ***************" NotImplementedError: fork() function is unimplemented on this machine from C:/Ruby/lib/ruby/1.8/open3.rb:57:in `fork' from C:/Ruby/lib/ruby/1.8/open3.rb:57:in `popen3' from C:/Users/raw/Desktop/html/scheduler/vendor/plugins/wicked_pdf/lib/wicked_pdf.rb:22:in `pdf_from_string' from (irb):3

UPDATE: I am using Windows7

I can’t understand where I am going wrong.

Please, help.

Thanks in advance.

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3 answers

Install win32-open3 gem

 gem install win32-open3

And now change the line: 6 to lib / wicked_pdf.rb

requires "open3"

to

 require 'win32/open3'

and line: 20 in the same file

 command_for_stdin_stdout = "#{@exe_path} #{options} - - -q"

to

 command_for_stdin_stdout = "#{@exe_path} #{options} - -"

and now in the console I get

 wp = WickedPdf.new => #<WickedPdf:0x4e65f70 @exe_path="C:\\wkhtmltopdf\\wkhtmltopdf.exe"> ?> HTML_DOCUMENT = "<html><body>Hello World</body></html>" => "<html><body>Hello World</body></html>" ?> pdf = wp.pdf_from_string HTML_DOCUMENT "***************C:\\wkhtmltopdf\\wkhtmltopdf.exe - - ***************" => "%PDF-1.4\n1 0 obj\n<<\n/Title (\376\377)\n/Producer (wkhtmltopdf)\n/CreationDate (D:20101127124137)\n>>\nendobj\n4 0 obj\n<<\n/Type /ExtGState\n/SA true\n/SM 0.02\n/ca 1.0\n/CA 1.0\n/AIS false\n/SMask /None>>\nendobj\n5 0 obj\n[/Pattern /DeviceRGB]\nendobj\n8 0 obj\n<<\n/Type /Catalog\n/Pages 2 0 R\n>>\nendobj\n6 0 obj\n<<\n/Type /Page\n/Parent 2 0 R\n/Contents 9 0 R\n/Resources 11 0 R\n/Annots 12 0 R\n/MediaBox [0 0 595 842]\n>>\nendobj\n11 0 obj\n<<\n/ColorSpace <<\n/PCSp 5 0 R\n/CSp /DeviceRGB\n/CSpg /DeviceGray\n>>\n/ExtGState <<\n/GSa 4 0 R\n>>\n/Pattern <<\n>>\n/Font <<\n/F7 7 0 R\n>>\n/XObject <<\n>>\n>>\nendobj\n12 0 obj\n[ ]\nendobj\n9 0 obj\n<<\n/Length 10 0 R\n/Filter /FlateDecode\n>>\nstream\nx\234\245\222QKÄ0\f\200ßó+ò,\×6ëÖ‚øàPÁa\254àƒø ;O9\274Ãy\017\376}ÓtÇ \003\213`ÖåKÒ\264ɪ\273áß\016XuÃ'\216\263îÐJ\273\220\027j\226ÕX\257Èê\264ÐRM+tÜÁ\204\023ôÐó;é Ž\273j\221ø\207*×›\243\022Ý \017\r)ÞÁ\023\233\037K\223È©`\264v\236\271>7Sð;<^à¾Xêè1\"KÏA\271ÐÖ\244\255\225\2643\223o$\224j$\207_\257\260IçþKÚï\247Édèøë-Þó\263ŧg\206ëâ5\256#T\267-\032\217qÃ÷\220\241d\025\271\205\270\2625Æ5^òPÌÆ-\230䜉\025\022N\200\004P\001Ôç) N@ }\002M.ã 9\255\000W(ãÜDil\376qLî¢ùo3Ó ÊØÃ\0177Ч\201endstream\nendobj\n10 0 obj\n271\nendobj\n13 0 obj\n<< /Type /FontDescriptor\n/FontName /QNAAAA+ArialRegular\n/Flags 4 \n/FontBBox [-594.726562 -290.527343 1790.03906 900.390625 ]\n/ItalicAngle 0 \n/Ascent 651.367187 \n/Descent -188.476562 \n/CapHeight 0 \n/StemV 65.4296875 \n/FontFile2 14 0 R\n>> endobj\n14 0 obj\n<<\n/Length1 3840 \n/Length 17 0 R\n/Filter /FlateDecode\n>>\nstream\nx\234\245W]l\024×>wgg×C0ÆkW\204p\rÄ?\024l\263Æ»ÆÄ8ÈD\245\030cc\e\0220\224\214wf\275cvgV\263\263^\257\241\205\2406BQ#\245\205\246\025êC‰\2226I[~ÒÚ"\246\250M\245<\264\225ÒH\225\252\242ÊM\213\232\206(U\037\"\265Ä?=÷ÜYgL(RÕ]Í ïœ{î9ßùæÞY\030\000\224ÁiP\000ú‡Z¢+\242Gsèù*^O\216\245\213Ék\237Áø

Take a look at this blog post to figure it out. Thanks.

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You can try DocRaptor.com. This is an online application that allows you to convert html to pdf . They have free accounts, plus paid accounts if you need a lot of documents.

Hope this helps!

Julia

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create a folder in your public name "pdfs"

Controller:

 pdf = render_to_string :pdf => "graphs", :orientation => 'Landscape', :font_size => 11 # then save to a file save_path = Rails.root.join('pdfs', filename.pdf') File.open(save_path, 'wb') do |file| file << pdf end

graphs.rhtml

View: add this line of code for styles

 <%= wicked_pdf_stylesheet_link_tag "css filename here" %>
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Source: https://habr.com/ru/post/1339771/

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