Class: Decidim::Exporters::PDF

Inherits:
Exporter
  • Object
show all
Defined in:
lib/decidim/exporters/pdf.rb

Overview

Exports a PDF using the provided hash, given a collection and a Serializer. This is an abstract class that should be inherited to create PDF exporters, with each PDF exporter class setting the desired template, layout and orientation.

Instance Method Summary collapse

Methods inherited from Exporter

#initialize

Constructor Details

This class inherits a constructor from Decidim::Exporters::Exporter

Instance Method Details

#export ⇒ Object

Public: Exports a PDF version of the collection by rendering the template into html and then converting it to PDF.

Returns an ExportData instance.



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# File 'lib/decidim/exporters/pdf.rb', line 17

def export
  html = controller.render_to_string(
    template: template,
    layout: layout,
    locals: locals
  )

  document = WickedPdf.new.pdf_from_string(html, orientation: orientation)

  ExportData.new(document, "pdf")
end

#layout ⇒ Object

implementing classes should return a valid ERB path here

Raises:

  • (NotImplementedError) 


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# File 'lib/decidim/exporters/pdf.rb', line 40

def layout
  raise NotImplementedError
end

#locals ⇒ Object

This method may be overwritten if the template needs more local variables



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# File 'lib/decidim/exporters/pdf.rb', line 45

def locals
  { collection: collection }
end

#orientation ⇒ Object

may be overwritten if needed



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# File 'lib/decidim/exporters/pdf.rb', line 30

def orientation
  "Portrait"
end

#template ⇒ Object

implementing classes should return a valid ERB path here

Raises:

  • (NotImplementedError) 


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# File 'lib/decidim/exporters/pdf.rb', line 35

def template
  raise NotImplementedError
end