error

category_model.rb

# encoding: utf-8
class Category < ActiveRecord::Base
 
  has_many :favorite_users, :through => :category_users, :source => :user, :conditions => {:category_users => {:connection_type => :favorite}}
  has_many :responsible_users, :through => :category_users, :source => :user, :conditions => {:category_users => {:connection_type => :responsible}}

category_users_model.rb

class CategoryUser < ActiveRecord::Base
  belongs_to :category
  belongs_to :user
  #attr_accessible :connection_type, :category_id

  extend Enumerize
  enumerize :connection_type, :in => [:favorite, :responsible], :predicates => true

  validates_presence_of :connection_type
end

FullTrace

SELECT "users".* FROM "users"  WHERE "category_users"."connection_type" = "category_users"."favorite"
  Rendered /home/sdilshod/.rvm/gems/ruby-1.9.3-p547@saturn/gems/activeadmin-0.6.6/app/views/active_admin/resource/index.html.arb (3724.5ms)
Completed 500 Internal Server Error in 4157ms

ActiveRecord::StatementInvalid - PG::Error: ERROR:  missing FROM-clause entry for table "category_users"
LINE 1: SELECT "users".* FROM "users"  WHERE "category_users"."conne...
                                             ^
: SELECT "users".* FROM "users"  WHERE "category_users"."connection_type" = "category_users"."favorite":
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  (gem) actionpack-3.2.12/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
  (gem) railties-3.2.12/lib/rails/rack/logger.rb:32:in `call_app'
  (gem) railties-3.2.12/lib/rails/rack/logger.rb:16:in `block in call'
  (gem) activesupport-3.2.12/lib/active_support/tagged_logging.rb:22:in `tagged'
  (gem) railties-3.2.12/lib/rails/rack/logger.rb:16:in `call'
  (gem) quiet_assets-1.0.1/lib/quiet_assets.rb:20:in `call_with_quiet_assets'
  (gem) actionpack-3.2.12/lib/action_dispatch/middleware/request_id.rb:22:in `call'
  (gem) rack-1.4.5/lib/rack/methodoverride.rb:21:in `call'
  (gem) rack-1.4.5/lib/rack/runtime.rb:17:in `call'
  (gem) activesupport-3.2.12/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
  (gem) rack-1.4.5/lib/rack/lock.rb:15:in `call'
  (gem) actionpack-3.2.12/lib/action_dispatch/middleware/static.rb:62:in `call'
  (gem) airbrake-3.1.12/lib/airbrake/user_informer.rb:16:in `_call'
  (gem) airbrake-3.1.12/lib/airbrake/user_informer.rb:12:in `call'
  (gem) railties-3.2.12/lib/rails/engine.rb:479:in `call'
  (gem) railties-3.2.12/lib/rails/application.rb:223:in `call'
  (gem) rack-1.4.5/lib/rack/content_length.rb:14:in `call'
  (gem) railties-3.2.12/lib/rails/rack/log_tailer.rb:17:in `call'
  (gem) thin-1.5.0/lib/thin/connection.rb:81:in `block in pre_process'
  (gem) thin-1.5.0/lib/thin/connection.rb:79:in `catch'
  (gem) thin-1.5.0/lib/thin/connection.rb:79:in `pre_process'
  (gem) thin-1.5.0/lib/thin/connection.rb:54:in `process'
  (gem) thin-1.5.0/lib/thin/connection.rb:39:in `receive_data'
  (gem) eventmachine-1.0.0/lib/eventmachine.rb:187:in `run_machine'
  (gem) eventmachine-1.0.0/lib/eventmachine.rb:187:in `run'
  (gem) thin-1.5.0/lib/thin/backends/base.rb:63:in `start'
  (gem) thin-1.5.0/lib/thin/server.rb:159:in `start'
  (gem) rack-1.4.5/lib/rack/handler/thin.rb:13:in `run'
  (gem) rack-1.4.5/lib/rack/server.rb:268:in `start'
  (gem) railties-3.2.12/lib/rails/commands/server.rb:70:in `start'
  (gem) railties-3.2.12/lib/rails/commands.rb:55:in `block in <top (required)>'
  (gem) railties-3.2.12/lib/rails/commands.rb:50:in `tap'
  (gem) railties-3.2.12/lib/rails/commands.rb:50:in `<top (required)>'
  script/rails:6:in `require'
  script/rails:6:in `<main>'

Gemfile

source 'https://rubygems.org'

gem 'rails', '3.2.12'
gem 'rack', '1.4.5'
gem 'rake', '10.0.3'

gem 'pg'
gem 'activerecord-postgres-hstore'
gem 'pg_search'
gem 'activerecord-postgres-array'

gem "twitter-bootstrap-rails"

gem 'inherited_resources'
gem 'has_scope'
gem 'devise'
gem 'cancan'
gem 'kaminari'
gem 'russian'
gem 'rmagick'
gem 'rack-cache', :require => 'rack/cache'
#gem 'dragonfly'
gem 'carrierwave', :github => 'jnicklas/carrierwave'
gem 'mini_magick'

gem 'geocoder'

gem 'activeadmin'#, :github => 'gregbell/active_admin'
gem 'nokogiri'
gem 'fog'

gem 'wicked'

gem 'haml-rails'
gem 'jquery-rails', '2.1.4'
gem 'zepto-rails', :github => 'frontfoot/zepto-rails'

gem 'ancestry'
gem 'ransack'
#gem 'sunspot_rails'
#gem 'sunspot_solr'
#gem 'sunspot_with_kaminari'
gem 'acts_as_commentable_with_threading'
gem 'meta-tags'
gem 'sitemap_generator'

gem 'paper_trail'

gem "friendly_id"

gem 'activemerchant'

gem 'state_machine'
gem 'excon'
gem 'enumerize'

gem 'redis'
gem 'rest_in_place'
gem "cocoon"

gem 'formtastic'
gem "rails-settings-cached"

gem 'auto_html'
gem 'exception_notification', '2.6.1'
#gem 'imperavi-rails', :github => 'Paxa/imperavi-rails', :ref => 'ec989856'
#gem 'imperavi-rails', :path => '../imperavi-rails'
gem 'ckeditor'
gem 'select2-rails'
gem 'squeel'
gem 'faker'
gem 'chosen-rails'
gem 'truncate_html'

gem "galetahub-simple_captcha", :require => "simple_captcha"

group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'
  gem 'less-rails'

  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  # gem 'therubyracer', :platforms => :ruby

  gem 'uglifier', '>= 1.0.3'
  gem 'therubyracer'
end

group :development, :test do
  gem 'rspec-rails'
end

group :test do
  gem 'factory_girl_rails'
  gem 'shoulda-matchers'
  gem 'database_cleaner'
end

group :development do
  gem 'rvm-capistrano'
  gem 'capistrano'
  gem 'capistrano_colors'
  gem 'capistrano-unicorn', :require => false

  gem 'quiet_assets'
  gem 'i18n_generators'

  gem 'sextant'

  gem 'awesome_print'

  gem 'meta_request', '~> 0.3.4'

  gem 'binding_of_caller'
  gem 'better_errors'

  gem 'pry-rails'
  gem 'mailcatcher'
end

group :heroku_staging do
  gem 'thin'
end

gem 'unicorn'
gem 'whenever'
gem 'airbrake'

Gemfile.lock

GIT
  remote: git://github.com/frontfoot/zepto-rails.git
  revision: ca71163613f201ddfca1189d2173a1e2f9e72d73
  specs:
    zepto-rails (0.8.0)
      rails (>= 3.1.0)

GIT
  remote: git://github.com/jnicklas/carrierwave.git
  revision: e629c13fa39aaa187d3abf992fdea71cd5059cb4
  specs:
    carrierwave (0.8.0)
      activemodel (>= 3.2.0)
      activesupport (>= 3.2.0)

GEM
  remote: https://rubygems.org/
  specs:
    actionmailer (3.2.12)
      actionpack (= 3.2.12)
      mail (~> 2.4.4)
    actionpack (3.2.12)
      activemodel (= 3.2.12)
      activesupport (= 3.2.12)
      builder (~> 3.0.0)
      erubis (~> 2.7.0)
      journey (~> 1.0.4)
      rack (~> 1.4.5)
      rack-cache (~> 1.2)
      rack-test (~> 0.6.1)
      sprockets (~> 2.2.1)
    active_utils (1.0.5)
      activesupport (>= 2.3.11)
      i18n
    activeadmin (0.6.6)
      arbre (~> 1.0)
      bourbon (>= 1.0.0, < 4)
      devise (>= 1.5.4, < 4)
      formtastic (~> 2.0)
      inherited_resources (~> 1.3)
      jquery-rails (>= 1.0.0, < 3)
      kaminari (~> 0.13, != 0.15.0)
      meta_search (~> 1.0)
      rails (>= 3.0.0, < 4)
      sass (~> 3.1)
    activemerchant (1.29.3)
      active_utils (>= 1.0.2)
      activesupport (>= 2.3.14)
      builder (>= 2.0.0)
      i18n
      json (>= 1.5.1)
      money
      nokogiri
    activemodel (3.2.12)
      activesupport (= 3.2.12)
      builder (~> 3.0.0)
    activerecord (3.2.12)
      activemodel (= 3.2.12)
      activesupport (= 3.2.12)
      arel (~> 3.0.2)
      tzinfo (~> 0.3.29)
    activerecord-postgres-array (0.0.8)
      activerecord
    activerecord-postgres-hstore (0.5.3)
      rails
      rake
    activeresource (3.2.12)
      activemodel (= 3.2.12)
      activesupport (= 3.2.12)
    activesupport (3.2.12)
      i18n (~> 0.6)
      multi_json (~> 1.0)
    acts_as_commentable_with_threading (1.1.2)
      activerecord (>= 3.0)
      activesupport (~> 3.0)
      awesome_nested_set (>= 2.0)
    airbrake (3.1.12)
      activesupport
      builder
      json
    ancestry (1.3.0)
      activerecord (>= 2.3.14)
    arbre (1.0.3)
      activesupport (>= 3.0.0)
    arel (3.0.2)
    auto_html (1.6.0)
      redcarpet (~> 2.0)
      rinku (~> 1.5.0)
    awesome_nested_set (2.1.5)
      activerecord (>= 3.0.0)
    awesome_print (1.1.0)
    bcrypt-ruby (3.0.1)
    better_errors (0.3.2)
      coderay (>= 1.0.0)
      erubis (>= 2.7.0)
    binding_of_caller (0.7.1)
      debug_inspector (>= 0.0.1)
    bourbon (3.2.4)
      sass (~> 3.2)
      thor
    builder (3.0.4)
    callsite (0.0.11)
    cancan (1.6.8)
    capistrano (2.15.5)
      highline
      net-scp (>= 1.0.0)
      net-sftp (>= 2.0.0)
      net-ssh (>= 2.0.14)
      net-ssh-gateway (>= 1.1.0)
    capistrano-unicorn (0.1.9)
      capistrano
    capistrano_colors (0.5.5)
    chosen-rails (0.9.15)
      coffee-rails (>= 3.2)
      railties (>= 3.0)
      sass-rails (>= 3.2)
    chronic (0.9.1)
    ckeditor (4.0.4)
      mime-types
      orm_adapter
    cocoon (1.1.2)
    coderay (1.0.8)
    coffee-rails (3.2.2)
      coffee-script (>= 2.2.0)
      railties (~> 3.2.0)
    coffee-script (2.2.0)
      coffee-script-source
      execjs
    coffee-script-source (1.4.0)
    commonjs (0.2.6)
    daemons (1.1.9)
    database_cleaner (0.9.1)
    debug_inspector (0.0.2)
    devise (2.2.3)
      bcrypt-ruby (~> 3.0)
      orm_adapter (~> 0.1)
      railties (~> 3.1)
      warden (~> 1.2.1)
    diff-lcs (1.2.4)
    domain_name (0.5.7)
      unf (~> 0.0.3)
    enumerize (0.5.1)
      activesupport (>= 3.2)
    erubis (2.7.0)
    eventmachine (1.0.0)
    exception_notification (2.6.1)
      actionmailer (>= 3.0.4)
    excon (0.16.10)
    execjs (1.4.0)
      multi_json (~> 1.0)
    factory_girl (4.2.0)
      activesupport (>= 3.0.0)
    factory_girl_rails (4.2.1)
      factory_girl (~> 4.2.0)
      railties (>= 3.0.0)
    faker (1.1.2)
      i18n (~> 0.5)
    fog (1.10.0)
      builder
      excon (~> 0.14)
      formatador (~> 0.2.0)
      mime-types
      multi_json (~> 1.0)
      net-scp (~> 1.1)
      net-ssh (>= 2.1.3)
      nokogiri (~> 1.5.0)
      ruby-hmac
    formatador (0.2.5)
    formtastic (2.2.1)
      actionpack (>= 3.0)
    friendly_id (4.0.9)
    galetahub-simple_captcha (0.1.5)
    geocoder (1.2.5)
    haml (3.1.7)
    haml-rails (0.3.5)
      actionpack (>= 3.1, < 4.1)
      activesupport (>= 3.1, < 4.1)
      haml (~> 3.1)
      railties (>= 3.1, < 4.1)
    has_scope (0.5.1)
    highline (1.6.19)
    hike (1.2.3)
    i18n (0.6.4)
    i18n_generators (1.2.1)
      mechanize
      rails (>= 3.0.0)
    inherited_resources (1.3.1)
      has_scope (~> 0.5.0)
      responders (~> 0.6)
    journey (1.0.4)
    jquery-rails (2.1.4)
      railties (>= 3.0, < 5.0)
      thor (>= 0.14, < 2.0)
    json (1.8.0)
    kaminari (0.14.1)
      actionpack (>= 3.0.0)
      activesupport (>= 3.0.0)
    kgio (2.8.0)
    less (2.2.2)
      commonjs (~> 0.2.6)
    less-rails (2.2.6)
      actionpack (>= 3.1)
      less (~> 2.2.0)
    libv8 (3.11.8.13)
    mail (2.4.4)
      i18n (>= 0.4.0)
      mime-types (~> 1.16)
      treetop (~> 1.4.8)
    mailcatcher (0.5.12)
      activesupport (~> 3.0)
      eventmachine (~> 1.0.0)
      haml (>= 3.1, < 5)
      mail (~> 2.3)
      sinatra (~> 1.2)
      skinny (~> 0.2.3)
      sqlite3 (~> 1.3)
      thin (~> 1.5.0)
    mechanize (2.5.1)
      domain_name (~> 0.5, >= 0.5.1)
      mime-types (~> 1.17, >= 1.17.2)
      net-http-digest_auth (~> 1.1, >= 1.1.1)
      net-http-persistent (~> 2.5, >= 2.5.2)
      nokogiri (~> 1.4)
      ntlm-http (~> 0.1, >= 0.1.1)
      webrobots (~> 0.0, >= 0.0.9)
    meta-tags (2.0.0)
      actionpack (>= 3.0.0)
    meta_request (0.3.4)
      callsite (~> 0.0, >= 0.0.11)
      rack-contrib (~> 1.1)
      railties (>= 3.0.0, < 5.0.0)
    meta_search (1.1.3)
      actionpack (~> 3.1)
      activerecord (~> 3.1)
      activesupport (~> 3.1)
      polyamorous (~> 0.5.0)
    method_source (0.8.1)
    mime-types (1.21)
    mini_magick (3.4)
      subexec (~> 0.2.1)
    money (5.1.0)
      i18n (~> 0.6.0)
    multi_json (1.7.7)
    net-http-digest_auth (1.2.1)
    net-http-persistent (2.8)
    net-scp (1.1.2)
      net-ssh (>= 2.6.5)
    net-sftp (2.1.2)
      net-ssh (>= 2.6.5)
    net-ssh (2.6.8)
    net-ssh-gateway (1.2.0)
      net-ssh (>= 2.6.5)
    nokogiri (1.5.6)
    ntlm-http (0.1.1)
    orm_adapter (0.4.0)
    paper_trail (2.7.0)
      activerecord (~> 3.0)
      railties (~> 3.0)
    pg (0.14.1)
    pg_search (0.5.7)
      activerecord (>= 3)
      activesupport (>= 3)
    polyamorous (0.5.0)
      activerecord (~> 3.0)
    polyglot (0.3.3)
    pry (0.9.12)
      coderay (~> 1.0.5)
      method_source (~> 0.8)
      slop (~> 3.4)
    pry-rails (0.2.2)
      pry (>= 0.9.10)
    quiet_assets (1.0.1)
      railties (~> 3.1)
    rack (1.4.5)
    rack-cache (1.2)
      rack (>= 0.4)
    rack-contrib (1.1.0)
      rack (>= 0.9.1)
    rack-protection (1.5.0)
      rack
    rack-ssl (1.3.3)
      rack
    rack-test (0.6.2)
      rack (>= 1.0)
    rails (3.2.12)
      actionmailer (= 3.2.12)
      actionpack (= 3.2.12)
      activerecord (= 3.2.12)
      activeresource (= 3.2.12)
      activesupport (= 3.2.12)
      bundler (~> 1.0)
      railties (= 3.2.12)
    rails-settings-cached (0.2.4)
      rails (>= 3.0.0)
    railties (3.2.12)
      actionpack (= 3.2.12)
      activesupport (= 3.2.12)
      rack-ssl (~> 1.3.2)
      rake (>= 0.8.7)
      rdoc (~> 3.4)
      thor (>= 0.14.6, < 2.0)
    raindrops (0.11.0)
    rake (10.0.3)
    ransack (0.7.2)
      actionpack (~> 3.0)
      activerecord (~> 3.0)
      polyamorous (~> 0.5.0)
    rdoc (3.12.2)
      json (~> 1.4)
    redcarpet (2.2.2)
    redis (3.0.2)
    ref (1.0.2)
    responders (0.9.3)
      railties (~> 3.1)
    rest_in_place (2.1.1)
      rails (>= 3.1)
    rinku (1.5.1)
    rmagick (2.13.2)
    rspec-core (2.13.1)
    rspec-expectations (2.13.0)
      diff-lcs (>= 1.1.3, < 2.0)
    rspec-mocks (2.13.1)
    rspec-rails (2.13.2)
      actionpack (>= 3.0)
      activesupport (>= 3.0)
      railties (>= 3.0)
      rspec-core (~> 2.13.0)
      rspec-expectations (~> 2.13.0)
      rspec-mocks (~> 2.13.0)
    ruby-hmac (0.4.0)
    russian (0.6.0)
      i18n (>= 0.5.0)
    rvm-capistrano (1.2.7)
      capistrano (>= 2.0.0)
    sass (3.2.9)
    sass-rails (3.2.6)
      railties (~> 3.2.0)
      sass (>= 3.1.10)
      tilt (~> 1.3)
    select2-rails (3.4.3)
      sass-rails
      thor (~> 0.14)
    sextant (0.2.3)
      activesupport (>= 3.2)
      rails (>= 3.2)
    shoulda-matchers (2.0.0)
      activesupport (>= 3.0.0)
    sinatra (1.3.6)
      rack (~> 1.4)
      rack-protection (~> 1.3)
      tilt (~> 1.3, >= 1.3.3)
    sitemap_generator (5.0.5)
      builder
    skinny (0.2.3)
      eventmachine (~> 1.0.0)
      thin (~> 1.5.0)
    slop (3.4.3)
    sprockets (2.2.2)
      hike (~> 1.2)
      multi_json (~> 1.0)
      rack (~> 1.0)
      tilt (~> 1.1, != 1.3.0)
    sqlite3 (1.3.7)
    squeel (1.0.15)
      activerecord (~> 3.0)
      activesupport (~> 3.0)
      polyamorous (~> 0.5.0)
    state_machine (1.1.2)
    subexec (0.2.2)
    therubyracer (0.11.3)
      libv8 (~> 3.11.8.12)
      ref
    thin (1.5.0)
      daemons (>= 1.0.9)
      eventmachine (>= 0.12.6)
      rack (>= 1.0.0)
    thor (0.18.1)
    tilt (1.4.1)
    treetop (1.4.12)
      polyglot
      polyglot (>= 0.3.1)
    truncate_html (0.9.2)
    twitter-bootstrap-rails (2.2.0)
      actionpack (>= 3.1)
      execjs
      railties (>= 3.1)
    tzinfo (0.3.35)
    uglifier (1.3.0)
      execjs (>= 0.3.0)
      multi_json (~> 1.0, >= 1.0.2)
    unf (0.0.5)
      unf_ext
    unf_ext (0.0.5)
    unicorn (4.6.3)
      kgio (~> 2.6)
      rack
      raindrops (~> 0.7)
    warden (1.2.1)
      rack (>= 1.0)
    webrobots (0.0.13)
    whenever (0.8.2)
      activesupport (>= 2.3.4)
      chronic (>= 0.6.3)
    wicked (0.5.0)
      activesupport (>= 3.0.7)
      rails (>= 3.0.7)

PLATFORMS
  ruby

DEPENDENCIES
  activeadmin
  activemerchant
  activerecord-postgres-array
  activerecord-postgres-hstore
  acts_as_commentable_with_threading
  airbrake
  ancestry
  auto_html
  awesome_print
  better_errors
  binding_of_caller
  cancan
  capistrano
  capistrano-unicorn
  capistrano_colors
  carrierwave!
  chosen-rails
  ckeditor
  cocoon
  coffee-rails (~> 3.2.1)
  database_cleaner
  devise
  enumerize
  exception_notification (= 2.6.1)
  excon
  factory_girl_rails
  faker
  fog
  formtastic
  friendly_id
  galetahub-simple_captcha
  geocoder
  haml-rails
  has_scope
  i18n_generators
  inherited_resources
  jquery-rails (= 2.1.4)
  kaminari
  less-rails
  mailcatcher
  meta-tags
  meta_request (~> 0.3.4)
  mini_magick
  nokogiri
  paper_trail
  pg
  pg_search
  pry-rails
  quiet_assets
  rack (= 1.4.5)
  rack-cache
  rails (= 3.2.12)
  rails-settings-cached
  rake (= 10.0.3)
  ransack
  redis
  rest_in_place
  rmagick
  rspec-rails
  russian
  rvm-capistrano
  sass-rails (~> 3.2.3)
  select2-rails
  sextant
  shoulda-matchers
  sitemap_generator
  squeel
  state_machine
  therubyracer
  thin
  truncate_html
  twitter-bootstrap-rails
  uglifier (>= 1.0.3)
  unicorn
  whenever
  wicked
  zepto-rails!

users_model.rb

# encoding: utf-8
class User < ActiveRecord::Base
  devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable,
         :confirmable, :validatable

  attr_accessor :login

 
  has_many :category_users
  has_many :favorite_categories, :through => :category_users, :source => :category, :conditions => {:category_users => {:connection_type => :favorite}}
  has_many :responsible_categories, :through => :category_users, :source => :category, :conditions => {:category_users => {:connection_type => :responsible}}
 
end