Admin::PagesController also desperately needs some functional test blessing.

(In r580) Fixed Admin::PagesController to call filter_text_by_name correctly (also moved into an update_html controller method), added functional tests (closes #358)

My textile filters are broken, and the filters page errors out

Well, great. Can you please be a little more precise of their brokenness, you setup et al? Just claiming they're broken isn't exactly aiding debugging. Reopen if you get the time to describe your problem.

On postgressql, when I attempt to create a new filter, the filter page (store button), goes to Application Error.

Well, that's a start. I can't reproduce this here. Can you please include a portion of your log (either log/production.log or log/development.log) that shows which error message triggered the application error? Without that, there's nothing that we can do to fix this.

Processing TextfiltersController#index (for 0.0.0.0 at Tue Sep 06 05:17:30 GMT 2005)
Parameters: {"action"=>"index", "controller"=>"admin/textfilters"}
Rendering within layouts/administration
Rendering admin/textfilters/list (200 OK)
Completed in 0.14658 (6 reqs/sec) | Rendering: 0.11175 (76%) | DB: 0.00289 (1%) "Processing TextfiltersController#new (for 0.0.0.0 at Tue Sep 06 05:17:32 GMT 2005)
Parameters: {"action"=>"new", "controller"=>"admin/textfilters"}
Rendering within layouts/administration
Rendering admin/textfilters/new (200 OK)
Completed in 0.06398 (15 reqs/sec) | Rendering: 0.04314 (67%) | DB: 0.00210 (3%) [http://example.com/admin/textfilters/new/":http://example.com/admin/textfilters]

Processing TextfiltersController#new (for 0.0.0.0 at Tue Sep 06 05:17:35 GMT 2005)
Parameters: {"action"=>"new", "params"=>{"amazon-associate-id"=>""}, "controller"=>"admin/textfilters", "textfilter"=>{"name"=>"test", "desc$

NoMethodError (undefined method @keys' for nil:NilClass):
app/controllers/admin/textfilters_controller.rb:40:in @new'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/base.rb:756:in @send'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/base.rb:756:in @perform_action_without_filters'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/filters.rb:295:in @perform_action_without_benchmark'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/benchmarking.rb:41:in @perform_action_without_rescue'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/benchmarking.rb:41:in @measure'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/benchmarking.rb:41:in @perform_action_without_rescue'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/rescue.rb:80:in @perform_action'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/base.rb:356:in @send'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/base.rb:356:in @process'
/usr/local/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/dispatcher.rb:32:in @dispatch'
/usr/local/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/fcgi_handler.rb:144:in @process_request'
/usr/local/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/fcgi_handler.rb:64:in @process!'
/usr/local/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/fcgi_handler.rb:55:in @each_cgi'
/usr/local/lib/ruby/gems/1.8/gems/fcgi-0.8.6.1/./fcgi.rb:597:in @each'
/usr/local/lib/ruby/gems/1.8/gems/fcgi-0.8.6.1/./fcgi.rb:597:in @each_cgi'
/usr/local/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/fcgi_handler.rb:55:in @process!'
/usr/local/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/fcgi_handler.rb:21:in @process!'
/home/username/web/typo/public/dispatch.fcgi:24

This is on postgresql

Can you please re-test this with the latest version of the Typo trunk--it works fine for me, and the line numbers that you've given don't match up with the current code.