What do I need to do to get activerecord-import to work?
activerecord, activerecord-import, ruby-on-rails
Solution
The answer is that there are some special steps you need to take to use this particular gem.
require "activerecord-import/base"
ActiveRecord::Import.require_adapter('mysql2')
This was found on the github wiki page for activerecord-import
Problem
I am trying to use activerecord-import, but I can't seem to get my application to recognize its existence. I get ``` undefined method `supports_import?' for #<Class:...> ``` or ``` undefined method `import' for #<Class:...> ``` no matter what I do. I've been googling this for days and trying everything I can think of It worked when we had rails 2.3.5 and ar-extensions, but since upgrading to rails 3.2 it has been broken. Everyone says the solution is to use activerecord-import, but I don't seem to know how to do that. I have installed the gem -- I believe the correct version for my version of ActiveRecord -- and I've required it in my code, but there must be some other thing I have to do. I have this in my Gemfile: ``` gem 'activerecord-import', "~> 0.3.0" ``` this in my code: ``` require 'activerecord-import' ``` and this is my gem list: ``` $ gem list *** LOCAL GEMS *** actionmailer (3.2.13) actionpack (3.2.13) active_utils (2.0.0, 1.0.5) activemerchant (1.38.1, 1.37.0, 1.34.1) activemodel (3.2.13) activerecord (3.2.13) activerecord-import (0.3.1) activeresource (3.2.13) activesupport (3.2.13) acts_as_tree (1.1.0) arel (3.0.2) builder (3.0.4) bundler (1.2.1) capistrano (2.15.5) ckeditor (4.0.6) climate_control (0.0.3) cocaine (0.5.1) coffee-rails (3.2.2) coffee-script (2.2.0) coffee-script-source (1.6.3) composite_primary_keys (5.0.13) dbf (2.0.6) erubis (2.7.0) exception_notification (3.0.1) execjs (2.0.1, 1.4.0) fastercsv (1.5.5) friendly_id (4.0.10.1) highline (1.6.19) hike (1.2.3) i18n (0.6.1) journey (1.0.4) jquery-rails (3.0.4) json (1.8.0) libv8 (3.16.14.3 x86_64-linux, 3.11.8.17 x86_64-linux) mail (2.5.4) mime-types (1.25, 1.23) mini_magick (3.6.0) mini_portile (0.5.1) money (5.1.1) multi_json (1.8.0, 1.7.9, 1.7.7) mysql2 (0.3.13) net-scp (1.1.2) net-sftp (2.1.2) net-ssh (2.6.8) net-ssh-gateway (1.2.0) newrelic_rpm (3.6.7.152) nokogiri (1.6.0, 1.5.10) orm_adapter (0.5.0) paperclip (3.5.1, 3.5.0) polyglot (0.3.3) rack (1.4.5) rack-cache (1.2) rack-ssl (1.3.3) rack-test (0.6.2) rails (3.2.13) railties (3.2.13) rake (10.1.0, 0.9.2.2) rdoc (3.12.2) ref (1.0.5) rmagick (2.13.2) rubygems-bundler (1.1.0) rvm (1.11.3.5) sass (3.2.10, 3.2.9) sass-rails (3.2.6) sprockets (2.2.2) sqlite3 (1.3.8) subexec (0.2.3) therubyracer (0.12.0, 0.11.4) thor (0.18.1) tilt (1.4.1) tinymce_fm (0.0.2) treetop (1.4.15, 1.4.14) tzinfo (0.3.37) uglifier (2.2.1, 2.1.2) will_paginate (3.0.4) zip (2.0.2) ```