[#112] Adapt database switches to use ChiliProject::Database

app/models/user.rb

@@ -299,7 +299,7 @@ class User < Principal
   # version.  Exact matches will be given priority.
   def self.find_by_login(login)
     # force string comparison to be case sensitive on MySQL
-    type_cast = (ActiveRecord::Base.connection.adapter_name =~ /mysql/i) ? 'BINARY' : ''
+    type_cast = (ChiliProject::Database.mysql?) ? 'BINARY' : ''
     # First look for an exact match
     user = first(:conditions => ["#{type_cast} login = ?", login])
     # Fail over to case-insensitive if none was found

db/migrate/20091227112908_change_wiki_contents_text_limit.rb

@@ -3,7 +3,7 @@ class ChangeWikiContentsTextLimit < ActiveRecord::Migration
     # Migrates MySQL databases only
     # Postgres would raise an error (see http://dev.rubyonrails.org/ticket/3818)
     # Not fixed in Rails 2.3.5
-    if ActiveRecord::Base.connection.adapter_name =~ /mysql/i
+    if ChiliProject::Database.mysql?
       max_size = 16.megabytes
       change_column :wiki_contents, :text, :text, :limit => max_size
       change_column :wiki_content_versions, :data, :binary, :limit => max_size