Class: ActionPrinter

Inherits:
ActionView::Base
  • Object
show all
Includes:
Exceptions
Defined in:
lib/action_printer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(printer, paper) ⇒ ActionPrinter

Returns a new instance of ActionPrinter.



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# File 'lib/action_printer.rb', line 8

def initialize(printer,paper)
  @printer=printer
  @paper=paper
  super(Rails.configuration.paths['app/views'])
end

Instance Attribute Details

#paper ⇒ Object

Returns the value of attribute paper.



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# File 'lib/action_printer.rb', line 6

def paper
  @paper
end

#printer ⇒ Object

Returns the value of attribute printer.



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# File 'lib/action_printer.rb', line 6

def printer
  @printer
end

Instance Method Details

#build_print_cmd(prn, args) ⇒ Object 



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# File 'lib/action_printer.rb', line 145

def build_print_cmd prn, args
  cups = !prn.printserver ? prn.cups_printer : "#{prn.cups_printer} -h 10.0.0.26:4#{prn.printserver.port}"
  pdf_path =  pdf_file_path.split("/")[-1]
  paper = args.delete(:paper) || prn.paper
  prn.command.gsub( /\$1/, cups ).gsub( /\$2/, paper ).gsub( /\$3/, pdf_file_path ).gsub( /\$4/, pdf_path )
end

#command ⇒ Object 



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# File 'lib/action_printer.rb', line 14

def command
  @printer.command
end

#command=(val) ⇒ Object 



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# File 'lib/action_printer.rb', line 18

def command=val
  @printer.command=val
end

#do_print(print_job, args) ⇒ Object

the default print is sending a link to the user who ordered the print



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# File 'lib/action_printer.rb', line 55

def do_print print_job, args
  result = nil
  prn = printer
  if prn.nil? or prn.command.blank? or prn.command=="email"
    mail_print print_job, args
  else
    print_print prn, print_job, args
  end
rescue => e
  logit :error, "Printing failed! The error was #{e.message}"
  false
end

#do_render(print_job, *args) ⇒ Object

the default rendering is from a string of chars to an html file - statically placed for who ever knows the exact path to the file, to see



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# File 'lib/action_printer.rb', line 26

def do_render(print_job,*args)
  path = print_job.view_template_path
  # TODO vi får en fejl her når vi begynder at mixe modellerne f.eks. Employee.find_by_sql('select * from products')
rc = print_job.printing_class.constantize
coll = rc.find_by_sql( print_job.print_sql)
  locals = { resource_class: rc, collection: coll, resource: coll.first, resources: coll }
  #
  # TODO args must be mergeable ;)
  # if args.flatten.compact.any?
  #   locals.merge! args
  # end

#
# this is WorkInProgress
#
  if (path =~/^---/) # this will return falsy if found
    of = html_file render_string_in path.gsub( /^---/, ''), locals
  else
    of = html_file render( file: path, formats: [:html], handlers: [:haml,:erb], locals: locals)
  end
  #
#
  logit :info, "created a html file: #{of.path}"

  of.path
end

#file_path ⇒ Object 



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# File 'lib/action_printer.rb', line 89

def file_path
  raise "must be implemented on the driver!!"
end

#get_file_type ⇒ Object 



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# File 'lib/action_printer.rb', line 101

def get_file_type
  raise "you must implement this on the driver!!"
end

#html_file(str, type = 'html') ⇒ Object

build a temp file with the HTML string rendered and provided as argument str



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# File 'lib/action_printer.rb', line 77

def html_file str, type='html'
  f = Tempfile.new(['print', ".#{type}"])
  f.puts str
  f.close
  Rails.logger.info "oxen: wrote #{f.path}"
  f
end

#label_file_path ⇒ Object 



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# File 'lib/action_printer.rb', line 93

def label_file_path
  @label_file_path ||= `mktemp -t lblXXXX`[0..-2]
end

#logit(log_type, msg) ⇒ Object 



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# File 'lib/action_printer.rb', line 152

def logit( log_type, msg )
  Rails.logger.send(log_type, "[OXEN] #{Time.now} [#{log_type.to_s}] #{msg}")
end

#mail_print(print_job, args) ⇒ Object 



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# File 'lib/action_printer.rb', line 114

def mail_print print_job, args
  # move pdf_file_path to a static place where it will not be accidentally deleted from
  # static_path = File.join(Rails.root,'public','files','1.pdf')
  # var = %x[ mv #{pdf_file_path} #{static_path}  2>&1 ]
  # send email to usr with link
  # raise MovingFileFailedError.new(var) unless var.blank?
  msg = args[:message] || "Der er ikke defineret nogen printere til dette job, for dig - så jeg er nødt til at sende dig filen vedhæftet denne email! ;)Du bør kontakte din system administrator og bede om at der bliver oprettet en printer definition til denne printer jobtype, for dig!"
  if print_job.printed_by.nil?
    raise PrintJobPrintingError.new t('action_printer.user_not_found')
  else
    PrinterMailer.send_print(print_job.printed_by,file_path,msg,t('print_delivered_by_email')).deliver_now
  end
end

#pdf_file_path ⇒ Object 



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# File 'lib/action_printer.rb', line 97

def pdf_file_path
  @pdf_file_path ||= `mktemp -t pdfXXXX`[0..-2]
end

#print_print(prn, print_job, args) ⇒ Object 



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# File 'lib/action_printer.rb', line 128

def print_print prn, print_job, args
  args[:copies] ||= 1
  cmd = build_print_cmd prn, args
  if args[:copies].to_i > 1
    cmdargs = cmd.split(" ")
    f = cmdargs.pop
    cmdargs.push "-n", args[:copies].to_i, f
    cmd = cmdargs.join(" ")
  end
  # Here we start actually printing
  # $1 is the CUPS printer
  # $2 is the PDF file_path_and_name
  # $3 is the PDF filename
  # the command being something along the lines of: lp -d $1 -o media=a4 $2
  return `#{cmd}`
end

#render_string_in(content, locals) ⇒ Object

this is WorkInProgress !!



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# File 'lib/action_printer.rb', line 71

def render_string_in content, locals
  render body: Haml::Engine.new( ERB.new(content).result ).render
end

#send_print_file(context) ⇒ Object 



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# File 'lib/action_printer.rb', line 105

def send_print_file context
  context.send_file pdf_file_path, filename: 'oxen_file', type: get_file_type, disposition: "attachment"
  # send_file path, type: asset_content_type, disposition: 'inline', filename: filename
  # context.cookies['fileDownload'] = 'true'
  # File.open(pdf_file_path, 'r') do |fp|
  #   context.send_data fp.read.force_encoding('BINARY'), filename: 'oxen_file', type: "application/pdf", disposition: "attachment"
  # end
end

#text_file(str) ⇒ Object 



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# File 'lib/action_printer.rb', line 85

def text_file str
  html_file str, 'label'
end