Retrieve template_path for PDFTK

fillable_pdf_form.rb

class FillablePdfForm

  attr_writer :template_path
  attr_reader :attributes

  def initialize
    fill_out
  end

  def export(output_file_path=nil, tenantname)
    output_path = output_file_path || "tmp/#{tenantname}_lease_#{Time.now}.pdf" # make sure tmp/pdfs exists
    pdftk.fill_form template_path, output_path, attributes
    output_path
  end

  def get_field_names 
    pdftk.get_field_names template_path
  end

  def template_path 
    @template_path ||= "https://www.dropbox.com/sh/7g43jx9tukv47xi/AADL-yVWw3cWVHOrTvrxe_4ga/master_lease.pdf" # makes assumption about template file path unless otherwise specified
  end

  protected

  def attributes
    @attributes ||= {}
  end

  def fill(key, value)
    attributes[key.to_s] = value
  end

  def pdftk
   
    @pdftk ||= PdfForms.new(ENV['PDFTK_PATH'] || '') # On my Mac, the location of pdftk was different than on my linux server.
  end

  def fill_out
    raise 'Must be overridden by child class'
  end

end

user.rb

class User < ActiveRecord::Base
	attr_accessor :password
	before_save :encrypt_password

	has_attached_file :avatar, :storage => :dropbox, 
		:dropbox_credentials => Rails.root.join("config/dropbox.yml"), 
		:styles => { :medium => "300x300>", :thumb=> "100x100>" }, 
		:default_url => "No_image_available.png",
		:dropbox_options => { 
			:path => proc { "#{avatar_file_name}" } 
		}

	has_attached_file :mlease, :storage => :dropbox, 
		:dropbox_credentials => Rails.root.join("config/dropbox.yml"), 
		:dropbox_options => { 
			:path => proc { "#{avatar_file_name}" } 
		}

	has_attached_file :expadd, :storage => :dropbox, 
		:dropbox_credentials => Rails.root.join("config/dropbox.yml"), 
		:dropbox_options => { 
			:path => proc { "#{avatar_file_name}" } 
		}

	validates_attachment_content_type :avatar, :content_type => /\Aimage\/.*\z/	
	validates_attachment :mlease, content_type: { content_type: "application/pdf", message: "Please only upload a pdf in this field" }
	validates_attachment :expadd, content_type: { content_type: "application/pdf", message: "Please only upload a pdf in this field" }
	validates_confirmation_of :password
	validates_presence_of :password, :on => :create
	validates_presence_of :email
	validates_uniqueness_of :email

	def self.authenticate(email, password)
		user = find_by_email(email)
		if user && user.password_hash == BCrypt::Engine.hash_secret(password, user.password_salt)
			user
		else
			nil
		end
	end

	def encrypt_password
		if password.present?
			self.password_salt = BCrypt::Engine.generate_salt
			self.password_hash = BCrypt::Engine.hash_secret(password, password_salt)
		end
	end

end