Trouble with require statements and MySQL Adapter

I'm also having the same issue, but in a rails context

Karsten / joe, sorry about the late response. I didn't have myself as the default assigned user so I wasn't getting emailed by Lighthouse about the ticket.

Did you find a way around your issue? If you can still reproduce would you mind installing the newest 0.9.1 gem and seeing if the problem exists?

Karsten / joe, sorry about the late response. I didn't have myself as the default assigned user so I wasn't getting emailed by Lighthouse about the ticket.

Did you find a way around your issue? If you can still reproduce would you mind installing the newest 0.9.1 gem and seeing if the problem exists?

Having same problem with require statements

I've upgraded to 0.9.1

these are some of my gems

actionmailer (2.3.2) actionpack (2.3.2) actionwebservice (1.2.6) activemerchant (1.4.2) activerecord (2.3.2) activeresource (2.3.2) activesupport (2.3.2) ar-extensions (0.9.1) archive-tar-minitar (0.5.2) arrayfields (4.7.3) attributes (5.0.1) aws-s3 (0.6.2)

here's a bit of the trace irb irb(main):001:0> require 'rubygems' => true irb(main):002:0> require 'mysql' => true irb(main):003:0> require 'activerecord' => true irb(main):004:0> require 'date' => [] irb(main):005:0> require 'fastercsv' => [] irb(main):006:0> require 'ftools' => [] irb(main):007:0> require 'facets' => [] irb(main):008:0> require 'yaml' => [] irb(main):009:0> require 'ar-extensions' => [] irb(main):010:0> require 'ar-extensions/import/mysql' NameError: uninitialized constant ActiveRecord::ConnectionAdapters::MysqlAdapter

from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:440:in `load_missing_constant'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:80:in `const_missing'
from /usr/lib/ruby/gems/1.8/gems/ar-extensions-0.9.1/lib/ar-extensions/import/mysql.rb:48
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
from (irb):10

irb(main):011:0> require 'ar-extensions/adapters/mysql' irb(main):011:0> require 'ar-extensions/adapters/mysql' NameError: uninitialized constant ActiveRecord::ConnectionAdapters::MysqlAdapter

from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:440:in `load_missing_constant'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:80:in `const_missing'
from /usr/lib/ruby/gems/1.8/gems/ar-extensions-0.9.1/lib/ar-extensions/adapters/mysql.rb:1
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
from (irb):11

irb(main):012:0>

Hello guys,

got the same problem, resolved by adding a:
"require 'ar-extensions'"

before the 2 other ones.

Thanks, Jean.

Your advice works, further more, I have to remove that two requires, otherwise still got 'uninitialized constant' issues, seems 0.9.1 is not neccessary to declare adapter...

I had the same issue with 0.9.2 and running within Rails 2.3.2.

If I only use "require 'ar-extensions'", no error. If I don't add explicitely the import module for SQLite, it does not do the fast import. So I added "require 'ar-extensions/import/sqlite'". That worked fine, no error.

The error message was specifically after adding "require 'ar-extensions/import/mysql'" (or "require 'ar-extensions/adapters/mysql'").

Removing the "require 'ar-extensions/import/mysql'" makes the message go away. But then I am afraid it is not going to have the optimised import running, cf http://www.continuousthinking.com/2008/8/16/ar-extensions-0-8-0-for.... So, Thurston, I am afraid you may have removed the error messages, but not sure you have the functionality you want.

The way to fix all of this is to add this line to your config/environment.rb in the "Rails::Initializer.run" block:

config.gem "activerecord"

After this, you don't even need "require 'ar-extensions'".

I have no idea where the whole thing comes from, too much gem voodoo loading going on :-)