Adds STI to Query model. Issue queries are now IssueQuery instances.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10964 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/project.rb

@@ -42,7 +42,7 @@ class Project < ActiveRecord::Base
   has_many :issue_changes, :through => :issues, :source => :journals
   has_many :versions, :dependent => :destroy, :order => "#{Version.table_name}.effective_date DESC, #{Version.table_name}.name DESC"
   has_many :time_entries, :dependent => :delete_all
-  has_many :queries, :dependent => :delete_all
+  has_many :queries, :class_name => 'IssueQuery', :dependent => :delete_all
   has_many :documents, :dependent => :destroy
   has_many :news, :dependent => :destroy, :include => :author
   has_many :issue_categories, :dependent => :delete_all, :order => "#{IssueCategory.table_name}.name"
@@ -869,7 +869,7 @@ class Project < ActiveRecord::Base
   # Copies queries from +project+
   def copy_queries(project)
     project.queries.each do |query|
-      new_query = ::Query.new
+      new_query = IssueQuery.new
       new_query.attributes = query.attributes.dup.except("id", "project_id", "sort_criteria")
       new_query.sort_criteria = query.sort_criteria if query.sort_criteria
       new_query.project = self