ruby - Using delayed_job for Mechanize script in Rails (NoMethodError: undefined method for nil:NilClass) -

i’m going preface saying i’m relative beginner, , while may not understand lot yet, more willing learn. hope can one, have been trying figure out long time , still stuck. know long 1 - wouldn't throw out here unless had put in many days of trying figure out myself first.

i using mechanize run script in rails app fill out several webforms. worked locally. however, need use delayed_job in order run time-intensive script in background. now, developing locally (it on heroku) until problem fixed.

so installed delayed_job_active_record gem, , have been trying finagle working. know although form takes in of parameters successfully, nothing getting inserted sql table. it’s not picking on object’s id. it's not recognizing object's class (it sees nilclass), considers regular ruby methods (such .strip) unknown. (the console's output showing of toward bottom).

i’m doing wrong. painfully obvious - don't have skills yet figure out. i’d forever indebted if can me figure out i’m doing wrong here.

first, here code:

---

model:

require 'digest' class jumper < activerecord::base  after_save |runscript|   runscript.delay.scrape end  validates :myuserid, :presence => true validates :mypass, :presence => true validates :mydate, :presence => true, :numericality => true validates :mymonth, :presence => true, :numericality => true validates :myyear, :presence => true, :numericality => true validates :mylist, :presence => true  attr_accessor :myuserid, :mypass, :mydate, :mymonth, :myyear, :mylist  def scrape   agent = mechanize.new    page = agent.get('http://mywebsite.org/')   myform = page.form_with(:name => 'signinform')   myuserid_field = myform.field_with(:name => "email")  myuserid_field.value = myuserid    mypass_field = myform.field_with(:name => "password")  mypass_field.value = mypass    page = agent.submit(myform, myform.buttons.first)   mylistarray = mylist.strip.split(/[\s]+/)   mylistfinal = mylistarray.map{|l| l[0..-5].sub(/(.*)\./,'\1').gsub('.','/')}.uniq   mylistfinal.each |doi|   url ='http://mywebsite=' + doi + '&role=some_info#some_dates'    page = agent.get("http://mywebsite.org/submit")   page = agent.get("#{url}")     entryform = page.form_with(:name => 'submit')     entryform.field_with(:name => 'month').options[("#{mymonth}").to_i].select   entryform.field_with(:name => 'day').options[("#{mydate}").to_i].select   entryform.field_with(:name => 'year').options[("#{myyear}").to_i].select    page = agent.submit(entryform, entryform.button_with(:name => 'continue'))      end   end end`   

controller:

def index   @doilists = doilist.all  respond_to |format|   format.html # index.html.erb   format.json { render json: @doilists }  end end  def show  @doilist = doilist.find(params[:id])   respond_to |format|   format.html # show.html.erb   format.json { render json: @doilist }  end end  def new   @doilist = doilist.new   respond_to |format|    format.html # new.html.erb    format.json { render json: @doilist }  end end  def create @jumper = jumper.new(params[:jumper])    if @jumper.save     flash[:notice] = "sucessfully submitted information."     redirect_to @jumper   else     render :action => 'new'   end  end` 

---

gemfile:

source 'https://rubygems.org'  gem 'rails'  group :development   gem 'sqlite3', '1.3.5' end  group :assets   gem 'sass-rails',   '~> 3.2.5'   gem 'coffee-rails', '~> 3.2.2'   gem 'uglifier', '>= 1.2.3' end  gem 'jquery-rails', '2.0.2' gem 'mechanize'  group :production   gem 'pg', '0.12.2' end  gem 'delayed_job_active_record' gem 'daemons' gem 'thin'` 

---

procfile:

web: bundle exec rails server thin -p $port -e $rack_env  worker:  bundle exec rake jobs:work` 

---

script/delayed_job:

require file.expand_path(file.join(file.dirname(__file__), '..', 'config', 'environment')) require 'delayed/command' delayed::command.new(argv).daemonize  rails_env=production script/delayed_job start --exit-on-complete` 

---

here output when run foreman in terminal:

11:33:30 web.1    | started post "/myjumper" 127.0.0.1 @ 2013-05-02 11:33:29 -0400 11:33:30 web.1    |   delayed::backend::activerecord::job load (1.2ms)  select "delayed_jobs".* "delayed_jobs" ((run_at <= '2013-05-02 15:33:30.437882' , (locked_at null or locked_at < '2013-05-02 11:33:30.438065') or locked_by = 'delayed_job host:myroot pid:7081') , failed_at null) order priority asc, run_at asc limit 5 1:33:30 web.1    | processing jumperscontroller#create html 11:33:30 web.1    |   parameters: {"utf8"=>"✓", "jumper"=>{"myuserid"=>"email@gmail.com", "mypass"=>"mypassword123”, "mylist"=>"listitem", "mymonth"=>"4", "mydate"=>"30", "myyear"=>"1"}, "commit"=>"submit entry"} 11:33:30 web.1    |    (0.1ms)  begin transaction 11:33:30 web.1    |   sql (21.4ms)  insert "jumpers" ("created_at", "mydate", "mylist", "mymonth", "mypass", "myuserid", "myyear", "updated_at") values (?, ?, ?, ?, ?, ?, ?, ?)  [["created_at", thu, 02 may 2013 15:33:30 utc +00:00], ["mydate", nil], ["mylist", nil], ["mymonth", nil], ["mypass", nil], ["myuserid", nil], ["myyear", nil], ["updated_at", thu, 02 may 2013 15:33:30 utc +00:00]] 11:33:30 web.1    |   sql (0.5ms)  insert "delayed_jobs" ("attempts", "created_at", "failed_at", "handler", "last_error", "locked_at", "locked_by", "priority", "queue", "run_at", "updated_at") values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)  [["attempts", 0], ["created_at", thu, 02 may 2013 15:33:30 utc +00:00], ["failed_at", nil], ["handler", "--- !ruby/object:delayed::performablemethod\nobject: !ruby/activerecord:jumper\n  attributes:\n    id: 68\n    mylist: \n    created_at: 2013-05-02 15:33:30.920857000 z\n    updated_at: 2013-05-02  15:33:30.920857000 z\n    myuserid: \n    mypass: \n    mymonth: \n    mydate: \n    myyear: \nmethod_name: :scrape\nargs:\n- :jumper\n"], ["last_error", nil], ["locked_at", nil], ["locked_by", nil], ["priority", 0], ["queue", nil], ["run_at", thu, 02 may 2013 15:33:30 utc +00:00], ["updated_at", thu, 02 may 2013 15:33:30 utc +00:00]] 11:33:30 web.1    |    (10.7ms)  commit transaction 11:33:30 web.1    | redirected `http://mylocalhost:5000/myjumper/68` 11:33:30 web.1    | completed 302 found in 74ms (activerecord: 33.1ms) 11:33:31 web.1    | started "/show/68" 127.0.0.1 @ 2013-05-02 11:33:30 -0400 11:33:31 web.1    | processing jumperscontroller#show html 11:33:31 web.1    |   parameters: {"id"=>"68"} 11:33:31 web.1    |   jumper load (0.3ms)  select "jumpers".* "jumpers" "jumpers"."id" = ? limit 1  [["id", "68"]] 11:33:34 worker.1 | [worker(host:myroot pid:10470)] jumper#scrape failed nomethoderror: undefined method `strip' nil:nilclass - 0 failed attempts 11:33:34 worker.1 | [worker(host:myroot pid:10470)] 1 jobs processed @ 0.8520 j/s, 1 failed ... 

it looks you've got undefined's. example, where's mymonth?

i want give tip simplifying code while i'm here:

instead of:

myuserid_field = myform.field_with(:name => "mstrservlet.email") myuserid_field.value = myuserid   

try just:

myform['mstrservlet.email'] = myuserid   

that's not solve problem, maybe closer simple enough solve.

and finally, know heroku current media darling, should consider might not best fit particular project.