Contents

module Medivo
  class PdfGroup

    attr_reader :pdf

    def initialize
      @pdfs = []
    end

    ##
    # create a pdf group returns you a PdfGroup class
    # to get the pdf call #pdf, or read the pdf byes, call #read
    def self.create(&block)
      raise "need to pass a block do create" unless block_given?
      pdf_group = PdfGroup.new
      pdf_group.instance_eval &block
      pdf_group.combine_pdfs
      pdf_group
    end

    ####### the types of pdfs you could make ##########
    def variable_fields(file_path, variables)
      @pdfs << PdfGenerator.variable_fields(file_path, variables)
    end

    def lab_requisition(requisition_id)
      pdf_bytes = Medivo::Order.pdf_requisition(requisition_id)
      @pdfs << PdfGenerator.tmp_pdf {|pdf| pdf.write pdf_bytes }
    end

    def lab_result(requisition_id)
      pdf_bytes = Medivo::Order.pdf_result(requisition_id)
      @pdfs << PdfGenerator.tmp_pdf {|pdf| pdf.write pdf_bytes }
    end

    def static_pdf(path)
      @pdfs << File.new(path)
    end

    ##
    # Combines the PDFs
    def combine_pdfs
      @pdf = PdfGenerator.tmp_pdf do |pdf|
        args = [@pdfs.collect(&:path), 'cat', 'output', pdf.path].flatten
        system 'pdftk', *args
        @pdfs.collect do |file|
          file.close
          file.unlink if file.respond_to? :unlink
        end
      end
    end

    # trying to keep the pdf ( tempfile ) closed until you need it then closing again
    def read
      @pdf.open
      @pdf.read
      @pdf.close
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
medivo-0.1.14	lib/pdf/medivo/pdf_group.rb
medivo-0.1.13	lib/pdf/medivo/pdf_group.rb
medivo-0.1.12	lib/pdf/medivo/pdf_group.rb