Rails generating PDF File from current Page - ruby-on-rails

Question

What I want to do is, generate a PDF file from my current page. (HTML)
I call a controller function which generates my page, it fetches data from database and so on.
Now I want a button which saves the current rendered page as a PDF file on the visitors machine. How can I do that?
If I use your code like this:
respond_to do |format|
format.html { render :template => "user/settings" }
format.pdf {
kit = PDFKit.new('http://google.com')
kit.stylesheets << "#{Rails.root}/public/stylesheets/pdf.css"
send_data(kit.to_pdf, :filename=>"sdasd.pdf",
:type => 'application/pdf', :disposition => 'inline')
}
end
and reload the page ... nothing gonna be downloaded as a pdf ... why?

Answer 1

You can create a similar template for pdf of your current page. Then you can use pdfkit gem.
Add this gems to your gemfile:
gem "pdfkit"
gem "wkhtmltopdf-binary"
Add something like this at your controller:
def show
#user= User.find(params[:id])
respond_to do |format|
format.html { render :template => "users/show" }
format.pdf {
html = render_to_string(:layout => false , :action => "show.pdf.erb") # your view erb files goes to :action
kit = PDFKit.new(html)
kit.stylesheets << "#{Rails.root}/public/stylesheets/pdf.css"
send_data(kit.to_pdf, :filename=>"#{#user.id}.pdf",
:type => 'application/pdf', :disposition => 'inline')
}
end
end
Now you can download pdf by adding .pdf to your controller route. eg: controller/routes/path/1.pdf
Or if you don't like it you can do
kit = PDFKit.new('http://google.com')