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

16 files changed, 500 insertions, 449 deletions

diff --git a/app/controllers/queries_controller.rb b/app/controllers/queries_controller.rb
index 546905ec9..1ecb62b68 100644
--- a/app/controllers/queries_controller.rb
+++ b/app/controllers/queries_controller.rb
@@ -32,9 +32,9 @@ class QueriesController < ApplicationController
       @limit = per_page_option
     end
 
-    @query_count = Query.visible.count
+    @query_count = IssueQuery.visible.count
     @query_pages = Paginator.new self, @query_count, @limit, params['page']
-    @queries = Query.visible.all(:limit => @limit, :offset => @offset, :order => "#{Query.table_name}.name")
+    @queries = IssueQuery.visible.all(:limit => @limit, :offset => @offset, :order => "#{Query.table_name}.name")
 
     respond_to do |format|
       format.html { render :nothing => true }
@@ -43,7 +43,7 @@ class QueriesController < ApplicationController
   end
 
   def new
-    @query = Query.new
+    @query = IssueQuery.new
     @query.user = User.current
     @query.project = @project
     @query.is_public = false unless User.current.allowed_to?(:manage_public_queries, @project) || User.current.admin?
@@ -51,7 +51,7 @@ class QueriesController < ApplicationController
   end
 
   def create
-    @query = Query.new(params[:query])
+    @query = IssueQuery.new(params[:query])
     @query.user = User.current
     @query.project = params[:query_is_for_all] ? nil : @project
     @query.is_public = false unless User.current.allowed_to?(:manage_public_queries, @project) || User.current.admin?
@@ -91,7 +91,7 @@ class QueriesController < ApplicationController
 
 private
   def find_query
-    @query = Query.find(params[:id])
+    @query = IssueQuery.find(params[:id])
     @project = @query.project
     render_403 unless @query.editable_by?(User.current)
   rescue ActiveRecord::RecordNotFound
diff --git a/app/helpers/issues_helper.rb b/app/helpers/issues_helper.rb
index 5073571f6..deb001273 100644
--- a/app/helpers/issues_helper.rb
+++ b/app/helpers/issues_helper.rb
@@ -184,7 +184,7 @@ module IssuesHelper
 
   def sidebar_queries
     unless @sidebar_queries
-      @sidebar_queries = Query.visible.all(
+      @sidebar_queries = IssueQuery.visible.all(
         :order => "#{Query.table_name}.name ASC",
         # Project specific queries and global queries
         :conditions => (@project.nil? ? ["project_id IS NULL"] : ["project_id IS NULL OR project_id = ?", @project.id])
diff --git a/app/helpers/queries_helper.rb b/app/helpers/queries_helper.rb
index 6b9c0962d..13f65fb61 100644
--- a/app/helpers/queries_helper.rb
+++ b/app/helpers/queries_helper.rb
@@ -122,21 +122,21 @@ module QueriesHelper
     if !params[:query_id].blank?
       cond = "project_id IS NULL"
       cond << " OR project_id = #{@project.id}" if @project
-      @query = Query.find(params[:query_id], :conditions => cond)
+      @query = IssueQuery.find(params[:query_id], :conditions => cond)
       raise ::Unauthorized unless @query.visible?
       @query.project = @project
       session[:query] = {:id => @query.id, :project_id => @query.project_id}
       sort_clear
     elsif api_request? || params[:set_filter] || session[:query].nil? || session[:query][:project_id] != (@project ? @project.id : nil)
       # Give it a name, required to be valid
-      @query = Query.new(:name => "_")
+      @query = IssueQuery.new(:name => "_")
       @query.project = @project
       build_query_from_params
       session[:query] = {:project_id => @query.project_id, :filters => @query.filters, :group_by => @query.group_by, :column_names => @query.column_names}
     else
       # retrieve from session
-      @query = Query.find_by_id(session[:query][:id]) if session[:query][:id]
-      @query ||= Query.new(:name => "_", :filters => session[:query][:filters], :group_by => session[:query][:group_by], :column_names => session[:query][:column_names])
+      @query = IssueQuery.find_by_id(session[:query][:id]) if session[:query][:id]
+      @query ||= IssueQuery.new(:name => "_", :filters => session[:query][:filters], :group_by => session[:query][:group_by], :column_names => session[:query][:column_names])
       @query.project = @project
     end
   end
@@ -144,10 +144,10 @@ module QueriesHelper
   def retrieve_query_from_session
     if session[:query]
       if session[:query][:id]
-        @query = Query.find_by_id(session[:query][:id])
+        @query = IssueQuery.find_by_id(session[:query][:id])
         return unless @query
       else
-        @query = Query.new(:name => "_", :filters => session[:query][:filters], :group_by => session[:query][:group_by], :column_names => session[:query][:column_names])
+        @query = IssueQuery.new(:name => "_", :filters => session[:query][:filters], :group_by => session[:query][:group_by], :column_names => session[:query][:column_names])
       end
       if session[:query].has_key?(:project_id)
         @query.project_id = session[:query][:project_id]
diff --git a/app/models/issue_query.rb b/app/models/issue_query.rb
new file mode 100644
index 000000000..9a1bf6245
--- /dev/null
+++ b/app/models/issue_query.rb
@@ -0,0 +1,321 @@
+# Redmine - project management software
+# Copyright (C) 2006-2012  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class IssueQuery < Query
+
+  self.available_columns = [
+    QueryColumn.new(:project, :sortable => "#{Project.table_name}.name", :groupable => true),
+    QueryColumn.new(:tracker, :sortable => "#{Tracker.table_name}.position", :groupable => true),
+    QueryColumn.new(:parent, :sortable => ["#{Issue.table_name}.root_id", "#{Issue.table_name}.lft ASC"], :default_order => 'desc', :caption => :field_parent_issue),
+    QueryColumn.new(:status, :sortable => "#{IssueStatus.table_name}.position", :groupable => true),
+    QueryColumn.new(:priority, :sortable => "#{IssuePriority.table_name}.position", :default_order => 'desc', :groupable => true),
+    QueryColumn.new(:subject, :sortable => "#{Issue.table_name}.subject"),
+    QueryColumn.new(:author, :sortable => lambda {User.fields_for_order_statement("authors")}, :groupable => true),
+    QueryColumn.new(:assigned_to, :sortable => lambda {User.fields_for_order_statement}, :groupable => true),
+    QueryColumn.new(:updated_on, :sortable => "#{Issue.table_name}.updated_on", :default_order => 'desc'),
+    QueryColumn.new(:category, :sortable => "#{IssueCategory.table_name}.name", :groupable => true),
+    QueryColumn.new(:fixed_version, :sortable => lambda {Version.fields_for_order_statement}, :groupable => true),
+    QueryColumn.new(:start_date, :sortable => "#{Issue.table_name}.start_date"),
+    QueryColumn.new(:due_date, :sortable => "#{Issue.table_name}.due_date"),
+    QueryColumn.new(:estimated_hours, :sortable => "#{Issue.table_name}.estimated_hours"),
+    QueryColumn.new(:done_ratio, :sortable => "#{Issue.table_name}.done_ratio", :groupable => true),
+    QueryColumn.new(:created_on, :sortable => "#{Issue.table_name}.created_on", :default_order => 'desc'),
+    QueryColumn.new(:relations, :caption => :label_related_issues),
+    QueryColumn.new(:description, :inline => false)
+  ]
+
+  scope :visible, lambda {|*args|
+    user = args.shift || User.current
+    base = Project.allowed_to_condition(user, :view_issues, *args)
+    user_id = user.logged? ? user.id : 0
+
+    includes(:project).where("(#{table_name}.project_id IS NULL OR (#{base})) AND (#{table_name}.is_public = ? OR #{table_name}.user_id = ?)", true, user_id)
+  }
+
+  def initialize(attributes=nil, *args)
+    super attributes
+    self.filters ||= { 'status_id' => {:operator => "o", :values => [""]} }
+  end
+
+  # Returns true if the query is visible to +user+ or the current user.
+  def visible?(user=User.current)
+    (project.nil? || user.allowed_to?(:view_issues, project)) && (self.is_public? || self.user_id == user.id)
+  end
+
+  def available_filters
+    return @available_filters if @available_filters
+    @available_filters = {
+      "status_id" => {
+        :type => :list_status, :order => 0,
+        :values => IssueStatus.sorted.all.collect{|s| [s.name, s.id.to_s] }
+       },
+      "tracker_id" => {
+        :type => :list, :order => 2, :values => trackers.collect{|s| [s.name, s.id.to_s] }
+       },
+      "priority_id" => {
+        :type => :list, :order => 3, :values => IssuePriority.all.collect{|s| [s.name, s.id.to_s] }
+       },
+      "subject" => { :type => :text, :order => 8 },
+      "created_on" => { :type => :date_past, :order => 9 },
+      "updated_on" => { :type => :date_past, :order => 10 },
+      "start_date" => { :type => :date, :order => 11 },
+      "due_date" => { :type => :date, :order => 12 },
+      "estimated_hours" => { :type => :float, :order => 13 },
+      "done_ratio" =>  { :type => :integer, :order => 14 }
+    }
+    IssueRelation::TYPES.each do |relation_type, options|
+      @available_filters[relation_type] = {
+        :type => :relation, :order => @available_filters.size + 100,
+        :label => options[:name]
+      }
+    end
+    principals = []
+    if project
+      principals += project.principals.sort
+      unless project.leaf?
+        subprojects = project.descendants.visible.all
+        if subprojects.any?
+          @available_filters["subproject_id"] = {
+            :type => :list_subprojects, :order => 13,
+            :values => subprojects.collect{|s| [s.name, s.id.to_s] }
+          }
+          principals += Principal.member_of(subprojects)
+        end
+      end
+    else
+      if all_projects.any?
+        # members of visible projects
+        principals += Principal.member_of(all_projects)
+        # project filter
+        project_values = []
+        if User.current.logged? && User.current.memberships.any?
+          project_values << ["<< #{l(:label_my_projects).downcase} >>", "mine"]
+        end
+        project_values += all_projects_values
+        @available_filters["project_id"] = {
+          :type => :list, :order => 1, :values => project_values
+        } unless project_values.empty?
+      end
+    end
+    principals.uniq!
+    principals.sort!
+    users = principals.select {|p| p.is_a?(User)}
+
+    assigned_to_values = []
+    assigned_to_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
+    assigned_to_values += (Setting.issue_group_assignment? ?
+                              principals : users).collect{|s| [s.name, s.id.to_s] }
+    @available_filters["assigned_to_id"] = {
+      :type => :list_optional, :order => 4, :values => assigned_to_values
+    } unless assigned_to_values.empty?
+
+    author_values = []
+    author_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
+    author_values += users.collect{|s| [s.name, s.id.to_s] }
+    @available_filters["author_id"] = {
+      :type => :list, :order => 5, :values => author_values
+    } unless author_values.empty?
+
+    group_values = Group.all.collect {|g| [g.name, g.id.to_s] }
+    @available_filters["member_of_group"] = {
+      :type => :list_optional, :order => 6, :values => group_values
+    } unless group_values.empty?
+
+    role_values = Role.givable.collect {|r| [r.name, r.id.to_s] }
+    @available_filters["assigned_to_role"] = {
+      :type => :list_optional, :order => 7, :values => role_values
+    } unless role_values.empty?
+
+    if User.current.logged?
+      @available_filters["watcher_id"] = {
+        :type => :list, :order => 15, :values => [["<< #{l(:label_me)} >>", "me"]]
+      }
+    end
+
+    if project
+      # project specific filters
+      categories = project.issue_categories.all
+      unless categories.empty?
+        @available_filters["category_id"] = {
+          :type => :list_optional, :order => 6,
+          :values => categories.collect{|s| [s.name, s.id.to_s] }
+        }
+      end
+      versions = project.shared_versions.all
+      unless versions.empty?
+        @available_filters["fixed_version_id"] = {
+          :type => :list_optional, :order => 7,
+          :values => versions.sort.collect{|s| ["#{s.project.name} - #{s.name}", s.id.to_s] }
+        }
+      end
+      add_custom_fields_filters(project.all_issue_custom_fields)
+    else
+      # global filters for cross project issue list
+      system_shared_versions = Version.visible.find_all_by_sharing('system')
+      unless system_shared_versions.empty?
+        @available_filters["fixed_version_id"] = {
+          :type => :list_optional, :order => 7,
+          :values => system_shared_versions.sort.collect{|s|
+                                       ["#{s.project.name} - #{s.name}", s.id.to_s]
+                                     }
+        }
+      end
+      add_custom_fields_filters(IssueCustomField.where(:is_filter => true, :is_for_all => true).all)
+    end
+    add_associations_custom_fields_filters :project, :author, :assigned_to, :fixed_version
+    if User.current.allowed_to?(:set_issues_private, nil, :global => true) ||
+      User.current.allowed_to?(:set_own_issues_private, nil, :global => true)
+      @available_filters["is_private"] = {
+        :type => :list, :order => 16,
+        :values => [[l(:general_text_yes), "1"], [l(:general_text_no), "0"]]
+      }
+    end
+    Tracker.disabled_core_fields(trackers).each {|field|
+      @available_filters.delete field
+    }
+    @available_filters.each do |field, options|
+      options[:name] ||= l(options[:label] || "field_#{field}".gsub(/_id$/, ''))
+    end
+    @available_filters
+  end
+
+  def available_columns
+    return @available_columns if @available_columns
+    @available_columns = self.class.available_columns.dup
+    @available_columns += (project ?
+                            project.all_issue_custom_fields :
+                            IssueCustomField.all
+                           ).collect {|cf| QueryCustomFieldColumn.new(cf) }
+
+    if User.current.allowed_to?(:view_time_entries, project, :global => true)
+      index = nil
+      @available_columns.each_with_index {|column, i| index = i if column.name == :estimated_hours}
+      index = (index ? index + 1 : -1)
+      # insert the column after estimated_hours or at the end
+      @available_columns.insert index, QueryColumn.new(:spent_hours,
+        :sortable => "(SELECT COALESCE(SUM(hours), 0) FROM #{TimeEntry.table_name} WHERE #{TimeEntry.table_name}.issue_id = #{Issue.table_name}.id)",
+        :default_order => 'desc',
+        :caption => :label_spent_time
+      )
+    end
+
+    if User.current.allowed_to?(:set_issues_private, nil, :global => true) ||
+      User.current.allowed_to?(:set_own_issues_private, nil, :global => true)
+      @available_columns << QueryColumn.new(:is_private, :sortable => "#{Issue.table_name}.is_private")
+    end
+
+    disabled_fields = Tracker.disabled_core_fields(trackers).map {|field| field.sub(/_id$/, '')}
+    @available_columns.reject! {|column|
+      disabled_fields.include?(column.name.to_s)
+    }
+
+    @available_columns
+  end
+
+  # Returns the issue count
+  def issue_count
+    Issue.visible.count(:include => [:status, :project], :conditions => statement)
+  rescue ::ActiveRecord::StatementInvalid => e
+    raise StatementInvalid.new(e.message)
+  end
+
+  # Returns the issue count by group or nil if query is not grouped
+  def issue_count_by_group
+    r = nil
+    if grouped?
+      begin
+        # Rails3 will raise an (unexpected) RecordNotFound if there's only a nil group value
+        r = Issue.visible.count(:group => group_by_statement, :include => [:status, :project], :conditions => statement)
+      rescue ActiveRecord::RecordNotFound
+        r = {nil => issue_count}
+      end
+      c = group_by_column
+      if c.is_a?(QueryCustomFieldColumn)
+        r = r.keys.inject({}) {|h, k| h[c.custom_field.cast_value(k)] = r[k]; h}
+      end
+    end
+    r
+  rescue ::ActiveRecord::StatementInvalid => e
+    raise StatementInvalid.new(e.message)
+  end
+
+  # Returns the issues
+  # Valid options are :order, :offset, :limit, :include, :conditions
+  def issues(options={})
+    order_option = [group_by_sort_order, options[:order]].reject {|s| s.blank?}.join(',')
+    order_option = nil if order_option.blank?
+
+    issues = Issue.visible.where(options[:conditions]).all(
+      :include => ([:status, :project] + (options[:include] || [])).uniq,
+      :conditions => statement,
+      :order => order_option,
+      :joins => joins_for_order_statement(order_option),
+      :limit  => options[:limit],
+      :offset => options[:offset]
+    )
+
+    if has_column?(:spent_hours)
+      Issue.load_visible_spent_hours(issues)
+    end
+    if has_column?(:relations)
+      Issue.load_visible_relations(issues)
+    end
+    issues
+  rescue ::ActiveRecord::StatementInvalid => e
+    raise StatementInvalid.new(e.message)
+  end
+
+  # Returns the issues ids
+  def issue_ids(options={})
+    order_option = [group_by_sort_order, options[:order]].reject {|s| s.blank?}.join(',')
+    order_option = nil if order_option.blank?
+
+    Issue.visible.scoped(:conditions => options[:conditions]).scoped(:include => ([:status, :project] + (options[:include] || [])).uniq,
+                     :conditions => statement,
+                     :order => order_option,
+                     :joins => joins_for_order_statement(order_option),
+                     :limit  => options[:limit],
+                     :offset => options[:offset]).find_ids
+  rescue ::ActiveRecord::StatementInvalid => e
+    raise StatementInvalid.new(e.message)
+  end
+
+  # Returns the journals
+  # Valid options are :order, :offset, :limit
+  def journals(options={})
+    Journal.visible.all(
+      :include => [:details, :user, {:issue => [:project, :author, :tracker, :status]}],
+      :conditions => statement,
+      :order => options[:order],
+      :limit => options[:limit],
+      :offset => options[:offset]
+    )
+  rescue ::ActiveRecord::StatementInvalid => e
+    raise StatementInvalid.new(e.message)
+  end
+
+  # Returns the versions
+  # Valid options are :conditions
+  def versions(options={})
+    Version.visible.where(options[:conditions]).all(
+      :include => :project,
+      :conditions => project_statement
+    )
+  rescue ::ActiveRecord::StatementInvalid => e
+    raise StatementInvalid.new(e.message)
+  end
+end
diff --git a/app/models/project.rb b/app/models/project.rb
index de708cc1a..e70d739f2 100644
--- a/app/models/project.rb
+++ b/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
diff --git a/app/models/query.rb b/app/models/query.rb
index 4999cce12..06bf5579c 100644
--- a/app/models/query.rb
+++ b/app/models/query.rb
@@ -145,38 +145,10 @@ class Query < ActiveRecord::Base
   }
 
   class_attribute :available_columns
-  self.available_columns = [
-    QueryColumn.new(:project, :sortable => "#{Project.table_name}.name", :groupable => true),
-    QueryColumn.new(:tracker, :sortable => "#{Tracker.table_name}.position", :groupable => true),
-    QueryColumn.new(:parent, :sortable => ["#{Issue.table_name}.root_id", "#{Issue.table_name}.lft ASC"], :default_order => 'desc', :caption => :field_parent_issue),
-    QueryColumn.new(:status, :sortable => "#{IssueStatus.table_name}.position", :groupable => true),
-    QueryColumn.new(:priority, :sortable => "#{IssuePriority.table_name}.position", :default_order => 'desc', :groupable => true),
-    QueryColumn.new(:subject, :sortable => "#{Issue.table_name}.subject"),
-    QueryColumn.new(:author, :sortable => lambda {User.fields_for_order_statement("authors")}, :groupable => true),
-    QueryColumn.new(:assigned_to, :sortable => lambda {User.fields_for_order_statement}, :groupable => true),
-    QueryColumn.new(:updated_on, :sortable => "#{Issue.table_name}.updated_on", :default_order => 'desc'),
-    QueryColumn.new(:category, :sortable => "#{IssueCategory.table_name}.name", :groupable => true),
-    QueryColumn.new(:fixed_version, :sortable => lambda {Version.fields_for_order_statement}, :groupable => true),
-    QueryColumn.new(:start_date, :sortable => "#{Issue.table_name}.start_date"),
-    QueryColumn.new(:due_date, :sortable => "#{Issue.table_name}.due_date"),
-    QueryColumn.new(:estimated_hours, :sortable => "#{Issue.table_name}.estimated_hours"),
-    QueryColumn.new(:done_ratio, :sortable => "#{Issue.table_name}.done_ratio", :groupable => true),
-    QueryColumn.new(:created_on, :sortable => "#{Issue.table_name}.created_on", :default_order => 'desc'),
-    QueryColumn.new(:relations, :caption => :label_related_issues),
-    QueryColumn.new(:description, :inline => false)
-  ]
-
-  scope :visible, lambda {|*args|
-    user = args.shift || User.current
-    base = Project.allowed_to_condition(user, :view_issues, *args)
-    user_id = user.logged? ? user.id : 0
-
-    includes(:project).where("(#{table_name}.project_id IS NULL OR (#{base})) AND (#{table_name}.is_public = ? OR #{table_name}.user_id = ?)", true, user_id)
-  }
+  self.available_columns = []
 
   def initialize(attributes=nil, *args)
     super attributes
-    self.filters ||= { 'status_id' => {:operator => "o", :values => [""]} }
     @is_for_all = project.nil?
   end
 
@@ -211,11 +183,6 @@ class Query < ActiveRecord::Base
     errors.add(:base, m)
   end
 
-  # Returns true if the query is visible to +user+ or the current user.
-  def visible?(user=User.current)
-    (project.nil? || user.allowed_to?(:view_issues, project)) && (self.is_public? || self.user_id == user.id)
-  end
-
   def editable_by?(user)
     return false unless user
     # Admin can edit them all and regular users can edit their private queries
@@ -233,143 +200,6 @@ class Query < ActiveRecord::Base
     operators.inject({}) {|h, operator| h[operator.first] = l(operator.last); h}
   end
 
-  def available_filters
-    return @available_filters if @available_filters
-    @available_filters = {
-      "status_id" => {
-        :type => :list_status, :order => 0,
-        :values => IssueStatus.sorted.all.collect{|s| [s.name, s.id.to_s] }
-       },
-      "tracker_id" => {
-        :type => :list, :order => 2, :values => trackers.collect{|s| [s.name, s.id.to_s] }
-       },
-      "priority_id" => {
-        :type => :list, :order => 3, :values => IssuePriority.all.collect{|s| [s.name, s.id.to_s] }
-       },
-      "subject" => { :type => :text, :order => 8 },
-      "created_on" => { :type => :date_past, :order => 9 },
-      "updated_on" => { :type => :date_past, :order => 10 },
-      "start_date" => { :type => :date, :order => 11 },
-      "due_date" => { :type => :date, :order => 12 },
-      "estimated_hours" => { :type => :float, :order => 13 },
-      "done_ratio" =>  { :type => :integer, :order => 14 }
-    }
-    IssueRelation::TYPES.each do |relation_type, options|
-      @available_filters[relation_type] = {
-        :type => :relation, :order => @available_filters.size + 100,
-        :label => options[:name]
-      }
-    end
-    principals = []
-    if project
-      principals += project.principals.sort
-      unless project.leaf?
-        subprojects = project.descendants.visible.all
-        if subprojects.any?
-          @available_filters["subproject_id"] = {
-            :type => :list_subprojects, :order => 13,
-            :values => subprojects.collect{|s| [s.name, s.id.to_s] }
-          }
-          principals += Principal.member_of(subprojects)
-        end
-      end
-    else
-      if all_projects.any?
-        # members of visible projects
-        principals += Principal.member_of(all_projects)
-        # project filter
-        project_values = []
-        if User.current.logged? && User.current.memberships.any?
-          project_values << ["<< #{l(:label_my_projects).downcase} >>", "mine"]
-        end
-        project_values += all_projects_values
-        @available_filters["project_id"] = {
-          :type => :list, :order => 1, :values => project_values
-        } unless project_values.empty?
-      end
-    end
-    principals.uniq!
-    principals.sort!
-    users = principals.select {|p| p.is_a?(User)}
-
-    assigned_to_values = []
-    assigned_to_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
-    assigned_to_values += (Setting.issue_group_assignment? ?
-                              principals : users).collect{|s| [s.name, s.id.to_s] }
-    @available_filters["assigned_to_id"] = {
-      :type => :list_optional, :order => 4, :values => assigned_to_values
-    } unless assigned_to_values.empty?
-
-    author_values = []
-    author_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
-    author_values += users.collect{|s| [s.name, s.id.to_s] }
-    @available_filters["author_id"] = {
-      :type => :list, :order => 5, :values => author_values
-    } unless author_values.empty?
-
-    group_values = Group.all.collect {|g| [g.name, g.id.to_s] }
-    @available_filters["member_of_group"] = {
-      :type => :list_optional, :order => 6, :values => group_values
-    } unless group_values.empty?
-
-    role_values = Role.givable.collect {|r| [r.name, r.id.to_s] }
-    @available_filters["assigned_to_role"] = {
-      :type => :list_optional, :order => 7, :values => role_values
-    } unless role_values.empty?
-
-    if User.current.logged?
-      @available_filters["watcher_id"] = {
-        :type => :list, :order => 15, :values => [["<< #{l(:label_me)} >>", "me"]]
-      }
-    end
-
-    if project
-      # project specific filters
-      categories = project.issue_categories.all
-      unless categories.empty?
-        @available_filters["category_id"] = {
-          :type => :list_optional, :order => 6,
-          :values => categories.collect{|s| [s.name, s.id.to_s] }
-        }
-      end
-      versions = project.shared_versions.all
-      unless versions.empty?
-        @available_filters["fixed_version_id"] = {
-          :type => :list_optional, :order => 7,
-          :values => versions.sort.collect{|s| ["#{s.project.name} - #{s.name}", s.id.to_s] }
-        }
-      end
-      add_custom_fields_filters(project.all_issue_custom_fields)
-    else
-      # global filters for cross project issue list
-      system_shared_versions = Version.visible.find_all_by_sharing('system')
-      unless system_shared_versions.empty?
-        @available_filters["fixed_version_id"] = {
-          :type => :list_optional, :order => 7,
-          :values => system_shared_versions.sort.collect{|s|
-                                       ["#{s.project.name} - #{s.name}", s.id.to_s]
-                                     }
-        }
-      end
-      add_custom_fields_filters(IssueCustomField.where(:is_filter => true, :is_for_all => true).all)
-    end
-    add_associations_custom_fields_filters :project, :author, :assigned_to, :fixed_version
-    if User.current.allowed_to?(:set_issues_private, nil, :global => true) ||
-      User.current.allowed_to?(:set_own_issues_private, nil, :global => true)
-      @available_filters["is_private"] = {
-        :type => :list, :order => 16,
-        :values => [[l(:general_text_yes), "1"], [l(:general_text_no), "0"]]
-      }
-    end
-    Tracker.disabled_core_fields(trackers).each {|field|
-      @available_filters.delete field
-    }
-    @available_filters.each do |field, options|
-      options[:name] ||= l(options[:label] || "field_#{field}".gsub(/_id$/, ''))
-    end
-    @available_filters
-  end
-
   # Returns a representation of the available filters for JSON serialization
   def available_filters_as_json
     json = {}
@@ -447,39 +277,6 @@ class Query < ActiveRecord::Base
     label ||= l("field_#{field.to_s.gsub(/_id$/, '')}", :default => field)
   end
 
-  def available_columns
-    return @available_columns if @available_columns
-    @available_columns = ::Query.available_columns.dup
-    @available_columns += (project ?
-                            project.all_issue_custom_fields :
-                            IssueCustomField.all
-                           ).collect {|cf| QueryCustomFieldColumn.new(cf) }
-
-    if User.current.allowed_to?(:view_time_entries, project, :global => true)
-      index = nil
-      @available_columns.each_with_index {|column, i| index = i if column.name == :estimated_hours}
-      index = (index ? index + 1 : -1)
-      # insert the column after estimated_hours or at the end
-      @available_columns.insert index, QueryColumn.new(:spent_hours,
-        :sortable => "(SELECT COALESCE(SUM(hours), 0) FROM #{TimeEntry.table_name} WHERE #{TimeEntry.table_name}.issue_id = #{Issue.table_name}.id)",
-        :default_order => 'desc',
-        :caption => :label_spent_time
-      )
-    end
-
-    if User.current.allowed_to?(:set_issues_private, nil, :global => true) ||
-      User.current.allowed_to?(:set_own_issues_private, nil, :global => true)
-      @available_columns << QueryColumn.new(:is_private, :sortable => "#{Issue.table_name}.is_private")
-    end
-
-    disabled_fields = Tracker.disabled_core_fields(trackers).map {|field| field.sub(/_id$/, '')}
-    @available_columns.reject! {|column|
-      disabled_fields.include?(column.name.to_s)
-    }
-
-    @available_columns
-  end
-
   def self.add_available_column(column)
     self.available_columns << (column) if column.is_a?(QueryColumn)
   end
@@ -666,99 +463,6 @@ class Query < ActiveRecord::Base
     filters_clauses.any? ? filters_clauses.join(' AND ') : nil
   end
 
-  # Returns the issue count
-  def issue_count
-    Issue.visible.count(:include => [:status, :project], :conditions => statement)
-  rescue ::ActiveRecord::StatementInvalid => e
-    raise StatementInvalid.new(e.message)
-  end
-
-  # Returns the issue count by group or nil if query is not grouped
-  def issue_count_by_group
-    r = nil
-    if grouped?
-      begin
-        # Rails3 will raise an (unexpected) RecordNotFound if there's only a nil group value
-        r = Issue.visible.count(:group => group_by_statement, :include => [:status, :project], :conditions => statement)
-      rescue ActiveRecord::RecordNotFound
-        r = {nil => issue_count}
-      end
-      c = group_by_column
-      if c.is_a?(QueryCustomFieldColumn)
-        r = r.keys.inject({}) {|h, k| h[c.custom_field.cast_value(k)] = r[k]; h}
-      end
-    end
-    r
-  rescue ::ActiveRecord::StatementInvalid => e
-    raise StatementInvalid.new(e.message)
-  end
-
-  # Returns the issues
-  # Valid options are :order, :offset, :limit, :include, :conditions
-  def issues(options={})
-    order_option = [group_by_sort_order, options[:order]].reject {|s| s.blank?}.join(',')
-    order_option = nil if order_option.blank?
-
-    issues = Issue.visible.where(options[:conditions]).all(
-      :include => ([:status, :project] + (options[:include] || [])).uniq,
-      :conditions => statement,
-      :order => order_option,
-      :joins => joins_for_order_statement(order_option),
-      :limit  => options[:limit],
-      :offset => options[:offset]
-    )
-
-    if has_column?(:spent_hours)
-      Issue.load_visible_spent_hours(issues)
-    end
-    if has_column?(:relations)
-      Issue.load_visible_relations(issues)
-    end
-    issues
-  rescue ::ActiveRecord::StatementInvalid => e
-    raise StatementInvalid.new(e.message)
-  end
-
-  # Returns the issues ids
-  def issue_ids(options={})
-    order_option = [group_by_sort_order, options[:order]].reject {|s| s.blank?}.join(',')
-    order_option = nil if order_option.blank?
-
-    Issue.visible.scoped(:conditions => options[:conditions]).scoped(:include => ([:status, :project] + (options[:include] || [])).uniq,
-                     :conditions => statement,
-                     :order => order_option,
-                     :joins => joins_for_order_statement(order_option),
-                     :limit  => options[:limit],
-                     :offset => options[:offset]).find_ids
-  rescue ::ActiveRecord::StatementInvalid => e
-    raise StatementInvalid.new(e.message)
-  end
-
-  # Returns the journals
-  # Valid options are :order, :offset, :limit
-  def journals(options={})
-    Journal.visible.all(
-      :include => [:details, :user, {:issue => [:project, :author, :tracker, :status]}],
-      :conditions => statement,
-      :order => options[:order],
-      :limit => options[:limit],
-      :offset => options[:offset]
-    )
-  rescue ::ActiveRecord::StatementInvalid => e
-    raise StatementInvalid.new(e.message)
-  end
-
-  # Returns the versions
-  # Valid options are :conditions
-  def versions(options={})
-    Version.visible.where(options[:conditions]).all(
-      :include => :project,
-      :conditions => project_statement
-    )
-  rescue ::ActiveRecord::StatementInvalid => e
-    raise StatementInvalid.new(e.message)
-  end
-
   def sql_for_watcher_id_field(field, operator, value)
     db_table = Watcher.table_name
     "#{Issue.table_name}.id #{ operator == '=' ? 'IN' : 'NOT IN' } (SELECT #{db_table}.watchable_id FROM #{db_table} WHERE #{db_table}.watchable_type='Issue' AND " +
diff --git a/app/views/settings/_issues.html.erb b/app/views/settings/_issues.html.erb
index c72358577..7b0d96fa3 100644
--- a/app/views/settings/_issues.html.erb
+++ b/app/views/settings/_issues.html.erb
@@ -24,7 +24,7 @@
 	<legend><%= l(:setting_issue_list_default_columns) %></legend>
   <%= render :partial => 'queries/columns',
              :locals => {
-               :query => Query.new(:column_names => Setting.issue_list_default_columns),
+               :query => IssueQuery.new(:column_names => Setting.issue_list_default_columns),
                :tag_name => 'settings[issue_list_default_columns][]'
              } %>
 </fieldset>
diff --git a/db/migrate/20121209123234_add_queries_type.rb b/db/migrate/20121209123234_add_queries_type.rb
new file mode 100644
index 000000000..202d524e1
--- /dev/null
+++ b/db/migrate/20121209123234_add_queries_type.rb
@@ -0,0 +1,9 @@
+class AddQueriesType < ActiveRecord::Migration
+  def up
+    add_column :queries, :type, :string
+  end
+
+  def down
+    remove_column :queries, :type
+  end
+end
diff --git a/db/migrate/20121209123358_update_queries_to_sti.rb b/db/migrate/20121209123358_update_queries_to_sti.rb
new file mode 100644
index 000000000..d8dea4070
--- /dev/null
+++ b/db/migrate/20121209123358_update_queries_to_sti.rb
@@ -0,0 +1,9 @@
+class UpdateQueriesToSti < ActiveRecord::Migration
+  def up
+    ::Query.update_all :type => 'IssueQuery'
+  end
+
+  def down
+    ::Query.update_all :type => nil
+  end
+end
diff --git a/test/fixtures/queries.yml b/test/fixtures/queries.yml
index a49f82fbb..f88da94d1 100644
--- a/test/fixtures/queries.yml
+++ b/test/fixtures/queries.yml
@@ -1,6 +1,7 @@
 --- 
 queries_001: 
   id: 1
+  type: IssueQuery
   project_id: 1
   is_public: true
   name: Multiple custom fields query
@@ -23,6 +24,7 @@ queries_001:
   column_names: 
 queries_002: 
   id: 2
+  type: IssueQuery
   project_id: 1
   is_public: false
   name: Private query for cookbook
@@ -41,6 +43,7 @@ queries_002:
   column_names: 
 queries_003: 
   id: 3
+  type: IssueQuery
   project_id: 
   is_public: false
   name: Private query for all projects
@@ -55,6 +58,7 @@ queries_003:
   column_names: 
 queries_004: 
   id: 4
+  type: IssueQuery
   project_id: 
   is_public: true
   name: Public query for all projects
@@ -69,6 +73,7 @@ queries_004:
   column_names: 
 queries_005: 
   id: 5
+  type: IssueQuery
   project_id: 
   is_public: true
   name: Open issues by priority and tracker
@@ -89,6 +94,7 @@ queries_005:
       - asc
 queries_006: 
   id: 6
+  type: IssueQuery
   project_id: 
   is_public: true
   name: Open issues grouped by tracker
@@ -108,6 +114,7 @@ queries_006:
       - desc
 queries_007: 
   id: 7
+  type: IssueQuery
   project_id: 2
   is_public: true
   name: Public query for project 2
@@ -122,6 +129,7 @@ queries_007:
   column_names: 
 queries_008: 
   id: 8
+  type: IssueQuery
   project_id: 2
   is_public: false
   name: Private query for project 2
@@ -136,6 +144,7 @@ queries_008:
   column_names: 
 queries_009: 
   id: 9
+  type: IssueQuery
   project_id: 
   is_public: true
   name: Open issues grouped by list custom field
diff --git a/test/functional/calendars_controller_test.rb b/test/functional/calendars_controller_test.rb
index 2855afbbf..a8ab5750f 100644
--- a/test/functional/calendars_controller_test.rb
+++ b/test/functional/calendars_controller_test.rb
@@ -42,7 +42,7 @@ class CalendarsControllerTest < ActionController::TestCase
 
   context "GET :show" do
     should "run custom queries" do
-      @query = Query.create!(:name => 'Calendar', :is_public => true)
+      @query = IssueQuery.create!(:name => 'Calendar', :is_public => true)
 
       get :show, :query_id => @query.id
       assert_response :success
diff --git a/test/functional/issues_controller_test.rb b/test/functional/issues_controller_test.rb
index e0d11d7ef..e91fbd41c 100644
--- a/test/functional/issues_controller_test.rb
+++ b/test/functional/issues_controller_test.rb
@@ -327,7 +327,7 @@ class IssuesControllerTest < ActionController::TestCase
   end
 
   def test_index_with_cross_project_query_in_session_should_show_project_issues
-    q = Query.create!(:name => "test", :user_id => 2, :is_public => false, :project => nil)
+    q = IssueQuery.create!(:name => "test", :user_id => 2, :is_public => false, :project => nil)
     @request.session[:query] = {:id => q.id, :project_id => 1}
 
     with_settings :display_subprojects_issues => '0' do
@@ -341,7 +341,7 @@ class IssuesControllerTest < ActionController::TestCase
   end
 
   def test_private_query_should_not_be_available_to_other_users
-    q = Query.create!(:name => "private", :user => User.find(2), :is_public => false, :project => nil)
+    q = IssueQuery.create!(:name => "private", :user => User.find(2), :is_public => false, :project => nil)
     @request.session[:user_id] = 3
 
     get :index, :query_id => q.id
@@ -349,7 +349,7 @@ class IssuesControllerTest < ActionController::TestCase
   end
 
   def test_private_query_should_be_available_to_its_user
-    q = Query.create!(:name => "private", :user => User.find(2), :is_public => false, :project => nil)
+    q = IssueQuery.create!(:name => "private", :user => User.find(2), :is_public => false, :project => nil)
     @request.session[:user_id] = 2
 
     get :index, :query_id => q.id
@@ -357,7 +357,7 @@ class IssuesControllerTest < ActionController::TestCase
   end
 
   def test_public_query_should_be_available_to_other_users
-    q = Query.create!(:name => "private", :user => User.find(2), :is_public => true, :project => nil)
+    q = IssueQuery.create!(:name => "private", :user => User.find(2), :is_public => true, :project => nil)
     @request.session[:user_id] = 3
 
     get :index, :query_id => q.id
@@ -666,7 +666,7 @@ class IssuesControllerTest < ActionController::TestCase
 
     # query should use specified columns
     query = assigns(:query)
-    assert_kind_of Query, query
+    assert_kind_of IssueQuery, query
     assert_equal columns, query.column_names.map(&:to_s)
 
     # columns should be stored in session
@@ -688,7 +688,7 @@ class IssuesControllerTest < ActionController::TestCase
 
     # query should use specified columns
     query = assigns(:query)
-    assert_kind_of Query, query
+    assert_kind_of IssueQuery, query
     assert_equal [:project, :tracker, :subject, :assigned_to], query.columns.map(&:name)
   end
 
@@ -699,7 +699,7 @@ class IssuesControllerTest < ActionController::TestCase
 
     # query should use specified columns
     query = assigns(:query)
-    assert_kind_of Query, query
+    assert_kind_of IssueQuery, query
     assert_equal columns.map(&:to_sym), query.columns.map(&:name)
   end
 
@@ -710,7 +710,7 @@ class IssuesControllerTest < ActionController::TestCase
 
     # query should use specified columns
     query = assigns(:query)
-    assert_kind_of Query, query
+    assert_kind_of IssueQuery, query
     assert_equal columns, query.column_names.map(&:to_s)
 
     assert_select 'table.issues td.cf_2.string'
@@ -1136,7 +1136,7 @@ class IssuesControllerTest < ActionController::TestCase
   end
 
   def test_show_should_display_prev_next_links_with_saved_query_in_session
-    query = Query.create!(:name => 'test', :is_public => true,  :user_id => 1,
+    query = IssueQuery.create!(:name => 'test', :is_public => true,  :user_id => 1,
       :filters => {'status_id' => {:values => ['5'], :operator => '='}},
       :sort_criteria => [['id', 'asc']])
     @request.session[:query] = {:id => query.id, :project_id => nil}
@@ -1228,7 +1228,7 @@ class IssuesControllerTest < ActionController::TestCase
     CustomValue.create!(:custom_field => cf, :customized => Issue.find(3), :value => '3')
     CustomValue.create!(:custom_field => cf, :customized => Issue.find(5), :value => '')
 
-    query = Query.create!(:name => 'test', :is_public => true,  :user_id => 1, :filters => {},
+    query = IssueQuery.create!(:name => 'test', :is_public => true,  :user_id => 1, :filters => {},
       :sort_criteria => [["cf_#{cf.id}", 'asc'], ['id', 'asc']])
     @request.session[:query] = {:id => query.id, :project_id => nil}
 
diff --git a/test/functional/issues_controller_transaction_test.rb b/test/functional/issues_controller_transaction_test.rb
index 85c573f9d..6c662d89d 100644
--- a/test/functional/issues_controller_transaction_test.rb
+++ b/test/functional/issues_controller_transaction_test.rb
@@ -252,7 +252,7 @@ class IssuesControllerTransactionTest < ActionController::TestCase
   end
 
   def test_index_should_rescue_invalid_sql_query
-    Query.any_instance.stubs(:statement).returns("INVALID STATEMENT")
+    IssueQuery.any_instance.stubs(:statement).returns("INVALID STATEMENT")
 
     get :index
     assert_response 500
diff --git a/test/unit/helpers/queries_helper_test.rb b/test/unit/helpers/queries_helper_test.rb
index ce23648d2..bc06499a9 100644
--- a/test/unit/helpers/queries_helper_test.rb
+++ b/test/unit/helpers/queries_helper_test.rb
@@ -31,7 +31,7 @@ class QueriesHelperTest < ActionView::TestCase
 
   def test_order
     User.current = User.find_by_login('admin')
-    query = Query.new(:project => nil, :name => '_')
+    query = IssueQuery.new(:project => nil, :name => '_')
     assert_equal 30, query.available_filters.size
     fo = filters_options(query)
     assert_equal 31, fo.size
@@ -52,7 +52,7 @@ class QueriesHelperTest < ActionView::TestCase
             )
     assert field.save
     User.current = User.find_by_login('admin')
-    query = Query.new(:project => nil, :name => '_')
+    query = IssueQuery.new(:project => nil, :name => '_')
     assert_equal 32, query.available_filters.size
     fo = filters_options(query)
     assert_equal 33, fo.size
diff --git a/test/unit/lib/redmine/helpers/gantt_test.rb b/test/unit/lib/redmine/helpers/gantt_test.rb
index 291662d67..591503389 100644
--- a/test/unit/lib/redmine/helpers/gantt_test.rb
+++ b/test/unit/lib/redmine/helpers/gantt_test.rb
@@ -50,7 +50,7 @@ class Redmine::Helpers::GanttHelperTest < ActionView::TestCase
     @project = project
     @gantt = Redmine::Helpers::Gantt.new(options)
     @gantt.project = @project
-    @gantt.query = Query.create!(:project => @project, :name => 'Gantt')
+    @gantt.query = IssueQuery.create!(:project => @project, :name => 'Gantt')
     @gantt.view = self
     @gantt.instance_variable_set('@date_from', options[:date_from] || (today - 14))
     @gantt.instance_variable_set('@date_to', options[:date_to] || (today + 14))
diff --git a/test/unit/query_test.rb b/test/unit/query_test.rb
index 6b1dda1e0..7c13156f8 100644
--- a/test/unit/query_test.rb
+++ b/test/unit/query_test.rb
@@ -29,20 +29,20 @@ class QueryTest < ActiveSupport::TestCase
            :custom_fields_trackers
 
   def test_custom_fields_for_all_projects_should_be_available_in_global_queries
-    query = Query.new(:project => nil, :name => '_')
+    query = IssueQuery.new(:project => nil, :name => '_')
     assert query.available_filters.has_key?('cf_1')
     assert !query.available_filters.has_key?('cf_3')
   end
 
   def test_system_shared_versions_should_be_available_in_global_queries
     Version.find(2).update_attribute :sharing, 'system'
-    query = Query.new(:project => nil, :name => '_')
+    query = IssueQuery.new(:project => nil, :name => '_')
     assert query.available_filters.has_key?('fixed_version_id')
     assert query.available_filters['fixed_version_id'][:values].detect {|v| v.last == '2'}
   end
 
   def test_project_filter_in_global_queries
-    query = Query.new(:project => nil, :name => '_')
+    query = IssueQuery.new(:project => nil, :name => '_')
     project_filter = query.available_filters["project_id"]
     assert_not_nil project_filter
     project_ids = project_filter[:values].map{|p| p[1]}
@@ -75,14 +75,14 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_query_should_allow_shared_versions_for_a_project_query
     subproject_version = Version.find(4)
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('fixed_version_id', '=', [subproject_version.id.to_s])
 
     assert query.statement.include?("#{Issue.table_name}.fixed_version_id IN ('4')")
   end
 
   def test_query_with_multiple_custom_fields
-    query = Query.find(1)
+    query = IssueQuery.find(1)
     assert query.valid?
     assert query.statement.include?("#{CustomValue.table_name}.value IN ('MySQL')")
     issues = find_issues_with_query(query)
@@ -91,7 +91,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_none
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('fixed_version_id', '!*', [''])
     query.add_filter('cf_1', '!*', [''])
     assert query.statement.include?("#{Issue.table_name}.fixed_version_id IS NULL")
@@ -100,7 +100,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_none_for_integer
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('estimated_hours', '!*', [''])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -108,7 +108,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_none_for_date
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('start_date', '!*', [''])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -116,7 +116,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_none_for_string_custom_field
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('cf_2', '!*', [''])
     assert query.has_filter?('cf_2')
     issues = find_issues_with_query(query)
@@ -125,7 +125,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_all
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('fixed_version_id', '*', [''])
     query.add_filter('cf_1', '*', [''])
     assert query.statement.include?("#{Issue.table_name}.fixed_version_id IS NOT NULL")
@@ -134,7 +134,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_all_for_date
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('start_date', '*', [''])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -142,7 +142,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_all_for_string_custom_field
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('cf_2', '*', [''])
     assert query.has_filter?('cf_2')
     issues = find_issues_with_query(query)
@@ -151,7 +151,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_numeric_filter_should_not_accept_non_numeric_values
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter('estimated_hours', '=', ['a'])
 
     assert query.has_filter?('estimated_hours')
@@ -161,7 +161,7 @@ class QueryTest < ActiveSupport::TestCase
   def test_operator_is_on_float
     Issue.update_all("estimated_hours = 171.2", "id=2")
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter('estimated_hours', '=', ['171.20'])
     issues = find_issues_with_query(query)
     assert_equal 1, issues.size
@@ -174,7 +174,7 @@ class QueryTest < ActiveSupport::TestCase
     CustomValue.create!(:custom_field => f, :customized => Issue.find(2), :value => '12')
     CustomValue.create!(:custom_field => f, :customized => Issue.find(3), :value => '')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter("cf_#{f.id}", '=', ['12'])
     issues = find_issues_with_query(query)
     assert_equal 1, issues.size
@@ -187,7 +187,7 @@ class QueryTest < ActiveSupport::TestCase
     CustomValue.create!(:custom_field => f, :customized => Issue.find(2), :value => '-12')
     CustomValue.create!(:custom_field => f, :customized => Issue.find(3), :value => '')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter("cf_#{f.id}", '=', ['-12'])
     assert query.valid?
     issues = find_issues_with_query(query)
@@ -201,7 +201,7 @@ class QueryTest < ActiveSupport::TestCase
     CustomValue.create!(:custom_field => f, :customized => Issue.find(2), :value => '12.7')
     CustomValue.create!(:custom_field => f, :customized => Issue.find(3), :value => '')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter("cf_#{f.id}", '=', ['12.7'])
     issues = find_issues_with_query(query)
     assert_equal 1, issues.size
@@ -214,7 +214,7 @@ class QueryTest < ActiveSupport::TestCase
     CustomValue.create!(:custom_field => f, :customized => Issue.find(2), :value => '-12.7')
     CustomValue.create!(:custom_field => f, :customized => Issue.find(3), :value => '')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter("cf_#{f.id}", '=', ['-12.7'])
     assert query.valid?
     issues = find_issues_with_query(query)
@@ -229,12 +229,12 @@ class QueryTest < ActiveSupport::TestCase
     CustomValue.create!(:custom_field => f, :customized => Issue.find(1), :value => 'value2')
     CustomValue.create!(:custom_field => f, :customized => Issue.find(3), :value => 'value1')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter("cf_#{f.id}", '=', ['value1'])
     issues = find_issues_with_query(query)
     assert_equal [1, 3], issues.map(&:id).sort
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter("cf_#{f.id}", '=', ['value2'])
     issues = find_issues_with_query(query)
     assert_equal [1], issues.map(&:id).sort
@@ -247,13 +247,13 @@ class QueryTest < ActiveSupport::TestCase
     CustomValue.create!(:custom_field => f, :customized => Issue.find(1), :value => 'value2')
     CustomValue.create!(:custom_field => f, :customized => Issue.find(3), :value => 'value1')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter("cf_#{f.id}", '!', ['value1'])
     issues = find_issues_with_query(query)
     assert !issues.map(&:id).include?(1)
     assert !issues.map(&:id).include?(3)
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter("cf_#{f.id}", '!', ['value2'])
     issues = find_issues_with_query(query)
     assert !issues.map(&:id).include?(1)
@@ -264,7 +264,7 @@ class QueryTest < ActiveSupport::TestCase
     # is_private filter only available for those who can set issues private
     User.current = User.find(2)
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     assert query.available_filters.key?('is_private')
 
     query.add_filter("is_private", '=', ['1'])
@@ -279,7 +279,7 @@ class QueryTest < ActiveSupport::TestCase
     # is_private filter only available for those who can set issues private
     User.current = User.find(2)
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     assert query.available_filters.key?('is_private')
 
     query.add_filter("is_private", '!', ['1'])
@@ -291,14 +291,14 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_greater_than
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('done_ratio', '>=', ['40'])
     assert query.statement.include?("#{Issue.table_name}.done_ratio >= 40.0")
     find_issues_with_query(query)
   end
 
   def test_operator_greater_than_a_float
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('estimated_hours', '>=', ['40.5'])
     assert query.statement.include?("#{Issue.table_name}.estimated_hours >= 40.5")
     find_issues_with_query(query)
@@ -310,7 +310,7 @@ class QueryTest < ActiveSupport::TestCase
     CustomValue.create!(:custom_field => f, :customized => Issue.find(2), :value => '12')
     CustomValue.create!(:custom_field => f, :customized => Issue.find(3), :value => '')
 
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter("cf_#{f.id}", '>=', ['8'])
     issues = find_issues_with_query(query)
     assert_equal 1, issues.size
@@ -318,7 +318,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_lesser_than
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('done_ratio', '<=', ['30'])
     assert query.statement.include?("#{Issue.table_name}.done_ratio <= 30.0")
     find_issues_with_query(query)
@@ -326,14 +326,14 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_operator_lesser_than_on_custom_field
     f = IssueCustomField.create!(:name => 'filter', :field_format => 'int', :is_filter => true, :is_for_all => true)
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter("cf_#{f.id}", '<=', ['30'])
     assert query.statement.include?("CAST(custom_values.value AS decimal(60,3)) <= 30.0")
     find_issues_with_query(query)
   end
 
   def test_operator_between
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('done_ratio', '><', ['30', '40'])
     assert_include "#{Issue.table_name}.done_ratio BETWEEN 30.0 AND 40.0", query.statement
     find_issues_with_query(query)
@@ -341,14 +341,14 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_operator_between_on_custom_field
     f = IssueCustomField.create!(:name => 'filter', :field_format => 'int', :is_filter => true, :is_for_all => true)
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter("cf_#{f.id}", '><', ['30', '40'])
     assert_include "CAST(custom_values.value AS decimal(60,3)) BETWEEN 30.0 AND 40.0", query.statement
     find_issues_with_query(query)
   end
 
   def test_date_filter_should_not_accept_non_date_values
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter('created_on', '=', ['a'])
 
     assert query.has_filter?('created_on')
@@ -356,7 +356,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_date_filter_should_not_accept_invalid_date_values
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter('created_on', '=', ['2011-01-34'])
 
     assert query.has_filter?('created_on')
@@ -364,7 +364,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_relative_date_filter_should_not_accept_non_integer_values
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter('created_on', '>t-', ['a'])
 
     assert query.has_filter?('created_on')
@@ -372,28 +372,28 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_date_equals
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter('due_date', '=', ['2011-07-10'])
     assert_match /issues\.due_date > '2011-07-09 23:59:59(\.9+)?' AND issues\.due_date <= '2011-07-10 23:59:59(\.9+)?/, query.statement
     find_issues_with_query(query)
   end
 
   def test_operator_date_lesser_than
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter('due_date', '<=', ['2011-07-10'])
     assert_match /issues\.due_date <= '2011-07-10 23:59:59(\.9+)?/, query.statement
     find_issues_with_query(query)
   end
 
   def test_operator_date_greater_than
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter('due_date', '>=', ['2011-07-10'])
     assert_match /issues\.due_date > '2011-07-09 23:59:59(\.9+)?'/, query.statement
     find_issues_with_query(query)
   end
 
   def test_operator_date_between
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.add_filter('due_date', '><', ['2011-06-23', '2011-07-10'])
     assert_match /issues\.due_date > '2011-06-22 23:59:59(\.9+)?' AND issues\.due_date <= '2011-07-10 23:59:59(\.9+)?/, query.statement
     find_issues_with_query(query)
@@ -401,7 +401,7 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_operator_in_more_than
     Issue.find(7).update_attribute(:due_date, (Date.today + 15))
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', '>t+', ['15'])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -409,7 +409,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_in_less_than
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', '<t+', ['15'])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -417,7 +417,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_in_the_next_days
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', '><t+', ['15'])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -426,7 +426,7 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_operator_less_than_ago
     Issue.find(7).update_attribute(:due_date, (Date.today - 3))
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', '>t-', ['3'])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -435,7 +435,7 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_operator_in_the_past_days
     Issue.find(7).update_attribute(:due_date, (Date.today - 3))
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', '><t-', ['3'])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -444,7 +444,7 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_operator_more_than_ago
     Issue.find(7).update_attribute(:due_date, (Date.today - 10))
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', '<t-', ['10'])
     assert query.statement.include?("#{Issue.table_name}.due_date <=")
     issues = find_issues_with_query(query)
@@ -454,7 +454,7 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_operator_in
     Issue.find(7).update_attribute(:due_date, (Date.today + 2))
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', 't+', ['2'])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -463,7 +463,7 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_operator_ago
     Issue.find(7).update_attribute(:due_date, (Date.today - 3))
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', 't-', ['3'])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -471,7 +471,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_today
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', 't', [''])
     issues = find_issues_with_query(query)
     assert !issues.empty?
@@ -479,19 +479,19 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_operator_this_week_on_date
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', 'w', [''])
     find_issues_with_query(query)
   end
 
   def test_operator_this_week_on_datetime
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('created_on', 'w', [''])
     find_issues_with_query(query)
   end
 
   def test_operator_contains
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('subject', '~', ['uNable'])
     assert query.statement.include?("LOWER(#{Issue.table_name}.subject) LIKE '%unable%'")
     result = find_issues_with_query(query)
@@ -505,7 +505,7 @@ class QueryTest < ActiveSupport::TestCase
 
     Date.stubs(:today).returns(Date.parse('2011-04-29'))
 
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', 'w', [''])
     assert query.statement.match(/issues\.due_date > '2011-04-24 23:59:59(\.9+)?' AND issues\.due_date <= '2011-05-01 23:59:59(\.9+)?/), "range not found in #{query.statement}"
     I18n.locale = :en
@@ -517,13 +517,13 @@ class QueryTest < ActiveSupport::TestCase
 
     Date.stubs(:today).returns(Date.parse('2011-04-29'))
 
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', 'w', [''])
     assert query.statement.match(/issues\.due_date > '2011-04-23 23:59:59(\.9+)?' AND issues\.due_date <= '2011-04-30 23:59:59(\.9+)?/), "range not found in #{query.statement}"
   end
 
   def test_operator_does_not_contains
-    query = Query.new(:project => Project.find(1), :name => '_')
+    query = IssueQuery.new(:project => Project.find(1), :name => '_')
     query.add_filter('subject', '!~', ['uNable'])
     assert query.statement.include?("LOWER(#{Issue.table_name}.subject) NOT LIKE '%unable%'")
     find_issues_with_query(query)
@@ -538,7 +538,7 @@ class QueryTest < ActiveSupport::TestCase
     i3 = Issue.generate!(:project_id => 1, :tracker_id => 1, :assigned_to => Group.find(11))
     group.users << user
 
-    query = Query.new(:name => '_', :filters => { 'assigned_to_id' => {:operator => '=', :values => ['me']}})
+    query = IssueQuery.new(:name => '_', :filters => { 'assigned_to_id' => {:operator => '=', :values => ['me']}})
     result = query.issues
     assert_equal Issue.visible.all(:conditions => {:assigned_to_id => ([2] + user.reload.group_ids)}).sort_by(&:id), result.sort_by(&:id)
 
@@ -553,7 +553,7 @@ class QueryTest < ActiveSupport::TestCase
     issue1 = Issue.create!(:project_id => 1, :tracker_id => 1, :custom_field_values => {cf.id.to_s => '2'}, :subject => 'Test', :author_id => 1)
     issue2 = Issue.generate!(:project_id => 1, :tracker_id => 1, :custom_field_values => {cf.id.to_s => '3'})
 
-    query = Query.new(:name => '_', :project => Project.find(1))
+    query = IssueQuery.new(:name => '_', :project => Project.find(1))
     filter = query.available_filters["cf_#{cf.id}"]
     assert_not_nil filter
     assert_include 'me', filter[:values].map{|v| v[1]}
@@ -566,7 +566,7 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_filter_my_projects
     User.current = User.find(2)
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     filter = query.available_filters['project_id']
     assert_not_nil filter
     assert_include 'mine', filter[:values].map{|v| v[1]}
@@ -578,7 +578,7 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_filter_watched_issues
     User.current = User.find(1)
-    query = Query.new(:name => '_', :filters => { 'watcher_id' => {:operator => '=', :values => ['me']}})
+    query = IssueQuery.new(:name => '_', :filters => { 'watcher_id' => {:operator => '=', :values => ['me']}})
     result = find_issues_with_query(query)
     assert_not_nil result
     assert !result.empty?
@@ -588,7 +588,7 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_filter_unwatched_issues
     User.current = User.find(1)
-    query = Query.new(:name => '_', :filters => { 'watcher_id' => {:operator => '!', :values => ['me']}})
+    query = IssueQuery.new(:name => '_', :filters => { 'watcher_id' => {:operator => '!', :values => ['me']}})
     result = find_issues_with_query(query)
     assert_not_nil result
     assert !result.empty?
@@ -601,7 +601,7 @@ class QueryTest < ActiveSupport::TestCase
     CustomValue.create!(:custom_field => field, :customized => Project.find(3), :value => 'Foo')
     CustomValue.create!(:custom_field => field, :customized => Project.find(5), :value => 'Foo')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     filter_name = "project.cf_#{field.id}"
     assert_include filter_name, query.available_filters.keys
     query.filters = {filter_name => {:operator => '=', :values => ['Foo']}}
@@ -612,7 +612,7 @@ class QueryTest < ActiveSupport::TestCase
     field = UserCustomField.create!(:name => 'Client', :is_filter => true, :field_format => 'string')
     CustomValue.create!(:custom_field => field, :customized => User.find(3), :value => 'Foo')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     filter_name = "author.cf_#{field.id}"
     assert_include filter_name, query.available_filters.keys
     query.filters = {filter_name => {:operator => '=', :values => ['Foo']}}
@@ -623,7 +623,7 @@ class QueryTest < ActiveSupport::TestCase
     field = UserCustomField.create!(:name => 'Client', :is_filter => true, :field_format => 'string')
     CustomValue.create!(:custom_field => field, :customized => User.find(3), :value => 'Foo')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     filter_name = "assigned_to.cf_#{field.id}"
     assert_include filter_name, query.available_filters.keys
     query.filters = {filter_name => {:operator => '=', :values => ['Foo']}}
@@ -634,7 +634,7 @@ class QueryTest < ActiveSupport::TestCase
     field = VersionCustomField.create!(:name => 'Client', :is_filter => true, :field_format => 'string')
     CustomValue.create!(:custom_field => field, :customized => Version.find(2), :value => 'Foo')
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     filter_name = "fixed_version.cf_#{field.id}"
     assert_include filter_name, query.available_filters.keys
     query.filters = {filter_name => {:operator => '=', :values => ['Foo']}}
@@ -646,11 +646,11 @@ class QueryTest < ActiveSupport::TestCase
     IssueRelation.create!(:relation_type => "relates", :issue_from => Issue.find(1), :issue_to => Issue.find(2))
     IssueRelation.create!(:relation_type => "relates", :issue_from => Issue.find(3), :issue_to => Issue.find(1))
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.filters = {"relates" => {:operator => '=', :values => ['1']}}
     assert_equal [2, 3], find_issues_with_query(query).map(&:id).sort
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.filters = {"relates" => {:operator => '=', :values => ['2']}}
     assert_equal [1], find_issues_with_query(query).map(&:id).sort
   end
@@ -663,15 +663,15 @@ class QueryTest < ActiveSupport::TestCase
       IssueRelation.create!(:relation_type => "relates", :issue_from => Issue.find(1), :issue_to => Project.find(3).issues.first)
     end
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.filters = {"relates" => {:operator => '=p', :values => ['2']}}
     assert_equal [1, 2], find_issues_with_query(query).map(&:id).sort
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.filters = {"relates" => {:operator => '=p', :values => ['3']}}
     assert_equal [1], find_issues_with_query(query).map(&:id).sort
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.filters = {"relates" => {:operator => '=p', :values => ['4']}}
     assert_equal [], find_issues_with_query(query).map(&:id).sort
   end
@@ -684,7 +684,7 @@ class QueryTest < ActiveSupport::TestCase
       IssueRelation.create!(:relation_type => "relates", :issue_from => Issue.find(1), :issue_to => Project.find(3).issues.first)
     end
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.filters = {"relates" => {:operator => '=!p', :values => ['1']}}
     assert_equal [1], find_issues_with_query(query).map(&:id).sort
   end
@@ -697,7 +697,7 @@ class QueryTest < ActiveSupport::TestCase
       IssueRelation.create!(:relation_type => "relates", :issue_to => Project.find(2).issues.first, :issue_from => Issue.find(3))
     end
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.filters = {"relates" => {:operator => '!p', :values => ['2']}}
     ids = find_issues_with_query(query).map(&:id).sort
     assert_include 2, ids
@@ -710,7 +710,7 @@ class QueryTest < ActiveSupport::TestCase
     IssueRelation.create!(:relation_type => "relates", :issue_from => Issue.find(1), :issue_to => Issue.find(2))
     IssueRelation.create!(:relation_type => "relates", :issue_from => Issue.find(3), :issue_to => Issue.find(1))
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.filters = {"relates" => {:operator => '!*', :values => ['']}}
     ids = find_issues_with_query(query).map(&:id)
     assert_equal [], ids & [1, 2, 3]
@@ -722,13 +722,13 @@ class QueryTest < ActiveSupport::TestCase
     IssueRelation.create!(:relation_type => "relates", :issue_from => Issue.find(1), :issue_to => Issue.find(2))
     IssueRelation.create!(:relation_type => "relates", :issue_from => Issue.find(3), :issue_to => Issue.find(1))
 
-    query = Query.new(:name => '_')
+    query = IssueQuery.new(:name => '_')
     query.filters = {"relates" => {:operator => '*', :values => ['']}}
     assert_equal [1, 2, 3], find_issues_with_query(query).map(&:id).sort
   end
 
   def test_statement_should_be_nil_with_no_filters
-    q = Query.new(:name => '_')
+    q = IssueQuery.new(:name => '_')
     q.filters = {}
 
     assert q.valid?
@@ -736,14 +736,14 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_default_columns
-    q = Query.new
+    q = IssueQuery.new
     assert q.columns.any?
     assert q.inline_columns.any?
     assert q.block_columns.empty?
   end
 
   def test_set_column_names
-    q = Query.new
+    q = IssueQuery.new
     q.column_names = ['tracker', :subject, '', 'unknonw_column']
     assert_equal [:tracker, :subject], q.columns.collect {|c| c.name}
     c = q.columns.first
@@ -751,7 +751,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_inline_and_block_columns
-    q = Query.new
+    q = IssueQuery.new
     q.column_names = ['subject', 'description', 'tracker']
 
     assert_equal [:subject, :tracker], q.inline_columns.map(&:name)
@@ -759,21 +759,21 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_custom_field_columns_should_be_inline
-    q = Query.new
+    q = IssueQuery.new
     columns = q.available_columns.select {|column| column.is_a? QueryCustomFieldColumn}
     assert columns.any?
     assert_nil columns.detect {|column| !column.inline?}
   end
 
   def test_query_should_preload_spent_hours
-    q = Query.new(:name => '_', :column_names => [:subject, :spent_hours])
+    q = IssueQuery.new(:name => '_', :column_names => [:subject, :spent_hours])
     assert q.has_column?(:spent_hours)
     issues = q.issues
     assert_not_nil issues.first.instance_variable_get("@spent_hours")
   end
 
   def test_groupable_columns_should_include_custom_fields
-    q = Query.new
+    q = IssueQuery.new
     column = q.groupable_columns.detect {|c| c.name == :cf_1}
     assert_not_nil column
     assert_kind_of QueryCustomFieldColumn, column
@@ -783,7 +783,7 @@ class QueryTest < ActiveSupport::TestCase
     field = CustomField.find(1)
     field.update_attribute :multiple, true
 
-    q = Query.new
+    q = IssueQuery.new
     column = q.groupable_columns.detect {|c| c.name == :cf_1}
     assert_nil column
   end
@@ -791,19 +791,19 @@ class QueryTest < ActiveSupport::TestCase
   def test_groupable_columns_should_include_user_custom_fields
     cf = IssueCustomField.create!(:name => 'User', :is_for_all => true, :tracker_ids => [1], :field_format => 'user')
 
-    q = Query.new
+    q = IssueQuery.new
     assert q.groupable_columns.detect {|c| c.name == "cf_#{cf.id}".to_sym}
   end
 
   def test_groupable_columns_should_include_version_custom_fields
     cf = IssueCustomField.create!(:name => 'User', :is_for_all => true, :tracker_ids => [1], :field_format => 'version')
 
-    q = Query.new
+    q = IssueQuery.new
     assert q.groupable_columns.detect {|c| c.name == "cf_#{cf.id}".to_sym}
   end
 
   def test_grouped_with_valid_column
-    q = Query.new(:group_by => 'status')
+    q = IssueQuery.new(:group_by => 'status')
     assert q.grouped?
     assert_not_nil q.group_by_column
     assert_equal :status, q.group_by_column.name
@@ -812,7 +812,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_grouped_with_invalid_column
-    q = Query.new(:group_by => 'foo')
+    q = IssueQuery.new(:group_by => 'foo')
     assert !q.grouped?
     assert_nil q.group_by_column
     assert_nil q.group_by_statement
@@ -820,7 +820,7 @@ class QueryTest < ActiveSupport::TestCase
   
   def test_sortable_columns_should_sort_assignees_according_to_user_format_setting
     with_settings :user_format => 'lastname_coma_firstname' do
-      q = Query.new
+      q = IssueQuery.new
       assert q.sortable_columns.has_key?('assigned_to')
       assert_equal %w(users.lastname users.firstname users.id), q.sortable_columns['assigned_to']
     end
@@ -828,14 +828,14 @@ class QueryTest < ActiveSupport::TestCase
   
   def test_sortable_columns_should_sort_authors_according_to_user_format_setting
     with_settings :user_format => 'lastname_coma_firstname' do
-      q = Query.new
+      q = IssueQuery.new
       assert q.sortable_columns.has_key?('author')
       assert_equal %w(authors.lastname authors.firstname authors.id), q.sortable_columns['author']
     end
   end
 
   def test_sortable_columns_should_include_custom_field
-    q = Query.new
+    q = IssueQuery.new
     assert q.sortable_columns['cf_1']
   end
 
@@ -843,29 +843,29 @@ class QueryTest < ActiveSupport::TestCase
     field = CustomField.find(1)
     field.update_attribute :multiple, true
 
-    q = Query.new
+    q = IssueQuery.new
     assert !q.sortable_columns['cf_1']
   end
 
   def test_default_sort
-    q = Query.new
+    q = IssueQuery.new
     assert_equal [], q.sort_criteria
   end
 
   def test_set_sort_criteria_with_hash
-    q = Query.new
+    q = IssueQuery.new
     q.sort_criteria = {'0' => ['priority', 'desc'], '2' => ['tracker']}
     assert_equal [['priority', 'desc'], ['tracker', 'asc']], q.sort_criteria
   end
 
   def test_set_sort_criteria_with_array
-    q = Query.new
+    q = IssueQuery.new
     q.sort_criteria = [['priority', 'desc'], 'tracker']
     assert_equal [['priority', 'desc'], ['tracker', 'asc']], q.sort_criteria
   end
 
   def test_create_query_with_sort
-    q = Query.new(:name => 'Sorted')
+    q = IssueQuery.new(:name => 'Sorted')
     q.sort_criteria = [['priority', 'desc'], 'tracker']
     assert q.save
     q.reload
@@ -873,7 +873,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_sort_by_string_custom_field_asc
-    q = Query.new
+    q = IssueQuery.new
     c = q.available_columns.find {|col| col.is_a?(QueryCustomFieldColumn) && col.custom_field.field_format == 'string' }
     assert c
     assert c.sortable
@@ -886,7 +886,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_sort_by_string_custom_field_desc
-    q = Query.new
+    q = IssueQuery.new
     c = q.available_columns.find {|col| col.is_a?(QueryCustomFieldColumn) && col.custom_field.field_format == 'string' }
     assert c
     assert c.sortable
@@ -899,7 +899,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_sort_by_float_custom_field_asc
-    q = Query.new
+    q = IssueQuery.new
     c = q.available_columns.find {|col| col.is_a?(QueryCustomFieldColumn) && col.custom_field.field_format == 'float' }
     assert c
     assert c.sortable
@@ -912,14 +912,14 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_invalid_query_should_raise_query_statement_invalid_error
-    q = Query.new
+    q = IssueQuery.new
     assert_raise Query::StatementInvalid do
       q.issues(:conditions => "foo = 1")
     end
   end
 
   def test_issue_count
-    q = Query.new(:name => '_')
+    q = IssueQuery.new(:name => '_')
     issue_count = q.issue_count
     assert_equal q.issues.size, issue_count
   end
@@ -935,7 +935,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_issue_count_by_association_group
-    q = Query.new(:name => '_', :group_by => 'assigned_to')
+    q = IssueQuery.new(:name => '_', :group_by => 'assigned_to')
     count_by_group = q.issue_count_by_group
     assert_kind_of Hash, count_by_group
     assert_equal %w(NilClass User), count_by_group.keys.collect {|k| k.class.name}.uniq.sort
@@ -944,7 +944,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_issue_count_by_list_custom_field_group
-    q = Query.new(:name => '_', :group_by => 'cf_1')
+    q = IssueQuery.new(:name => '_', :group_by => 'cf_1')
     count_by_group = q.issue_count_by_group
     assert_kind_of Hash, count_by_group
     assert_equal %w(NilClass String), count_by_group.keys.collect {|k| k.class.name}.uniq.sort
@@ -953,7 +953,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_issue_count_by_date_custom_field_group
-    q = Query.new(:name => '_', :group_by => 'cf_8')
+    q = IssueQuery.new(:name => '_', :group_by => 'cf_8')
     count_by_group = q.issue_count_by_group
     assert_kind_of Hash, count_by_group
     assert_equal %w(Date NilClass), count_by_group.keys.collect {|k| k.class.name}.uniq.sort
@@ -963,7 +963,7 @@ class QueryTest < ActiveSupport::TestCase
   def test_issue_count_with_nil_group_only
     Issue.update_all("assigned_to_id = NULL")
 
-    q = Query.new(:name => '_', :group_by => 'assigned_to')
+    q = IssueQuery.new(:name => '_', :group_by => 'assigned_to')
     count_by_group = q.issue_count_by_group
     assert_kind_of Hash, count_by_group
     assert_equal 1, count_by_group.keys.size
@@ -971,7 +971,7 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   def test_issue_ids
-    q = Query.new(:name => '_')
+    q = IssueQuery.new(:name => '_')
     order = "issues.subject, issues.id"
     issues = q.issues(:order => order)
     assert_equal issues.map(&:id), q.issue_ids(:order => order)
@@ -979,13 +979,13 @@ class QueryTest < ActiveSupport::TestCase
 
   def test_label_for
     set_language_if_valid 'en'
-    q = Query.new
+    q = IssueQuery.new
     assert_equal 'Assignee', q.label_for('assigned_to_id')
   end
 
   def test_label_for_fr
     set_language_if_valid 'fr'
-    q = Query.new
+    q = IssueQuery.new
     s = "Assign\xc3\xa9 \xc3\xa0"
     s.force_encoding('UTF-8') if s.respond_to?(:force_encoding)
     assert_equal s, q.label_for('assigned_to_id')
@@ -997,32 +997,32 @@ class QueryTest < ActiveSupport::TestCase
     developer = User.find(3)
 
     # Public query on project 1
-    q = Query.find(1)
+    q = IssueQuery.find(1)
     assert q.editable_by?(admin)
     assert q.editable_by?(manager)
     assert !q.editable_by?(developer)
 
     # Private query on project 1
-    q = Query.find(2)
+    q = IssueQuery.find(2)
     assert q.editable_by?(admin)
     assert !q.editable_by?(manager)
     assert q.editable_by?(developer)
 
     # Private query for all projects
-    q = Query.find(3)
+    q = IssueQuery.find(3)
     assert q.editable_by?(admin)
     assert !q.editable_by?(manager)
     assert q.editable_by?(developer)
 
     # Public query for all projects
-    q = Query.find(4)
+    q = IssueQuery.find(4)
     assert q.editable_by?(admin)
     assert !q.editable_by?(manager)
     assert !q.editable_by?(developer)
   end
 
   def test_visible_scope
-    query_ids = Query.visible(User.anonymous).map(&:id)
+    query_ids = IssueQuery.visible(User.anonymous).map(&:id)
 
     assert query_ids.include?(1), 'public query on public project was not visible'
     assert query_ids.include?(4), 'public query for all projects was not visible'
@@ -1033,7 +1033,7 @@ class QueryTest < ActiveSupport::TestCase
 
   context "#available_filters" do
     setup do
-      @query = Query.new(:name => "_")
+      @query = IssueQuery.new(:name => "_")
     end
 
     should "include users of visible projects in cross-project view" do
@@ -1127,7 +1127,7 @@ class QueryTest < ActiveSupport::TestCase
       end
 
       should "search assigned to for users in the group" do
-        @query = Query.new(:name => '_')
+        @query = IssueQuery.new(:name => '_')
         @query.add_filter('member_of_group', '=', [@group.id.to_s])
 
         assert_query_statement_includes @query, "#{Issue.table_name}.assigned_to_id IN ('#{@user_in_group.id}','#{@second_user_in_group.id}')"
@@ -1135,7 +1135,7 @@ class QueryTest < ActiveSupport::TestCase
       end
 
       should "search not assigned to any group member (none)" do
-        @query = Query.new(:name => '_')
+        @query = IssueQuery.new(:name => '_')
         @query.add_filter('member_of_group', '!*', [''])
 
         # Users not in a group
@@ -1144,7 +1144,7 @@ class QueryTest < ActiveSupport::TestCase
       end
 
       should "search assigned to any group member (all)" do
-        @query = Query.new(:name => '_')
+        @query = IssueQuery.new(:name => '_')
         @query.add_filter('member_of_group', '*', [''])
 
         # Only users in a group
@@ -1154,7 +1154,7 @@ class QueryTest < ActiveSupport::TestCase
 
       should "return an empty set with = empty group" do
         @empty_group = Group.generate!
-        @query = Query.new(:name => '_')
+        @query = IssueQuery.new(:name => '_')
         @query.add_filter('member_of_group', '=', [@empty_group.id.to_s])
 
         assert_equal [], find_issues_with_query(@query)
@@ -1162,7 +1162,7 @@ class QueryTest < ActiveSupport::TestCase
 
       should "return issues with ! empty group" do
         @empty_group = Group.generate!
-        @query = Query.new(:name => '_')
+        @query = IssueQuery.new(:name => '_')
         @query.add_filter('member_of_group', '!', [@empty_group.id.to_s])
 
         assert_find_issues_with_query_is_successful @query
@@ -1191,7 +1191,7 @@ class QueryTest < ActiveSupport::TestCase
       end
 
       should "search assigned to for users with the Role" do
-        @query = Query.new(:name => '_', :project => @project)
+        @query = IssueQuery.new(:name => '_', :project => @project)
         @query.add_filter('assigned_to_role', '=', [@manager_role.id.to_s])
 
         assert_query_result [@issue1, @issue3], @query
@@ -1201,7 +1201,7 @@ class QueryTest < ActiveSupport::TestCase
         other_project = Project.generate!
         User.add_to_project(@developer, other_project, @manager_role)
         
-        @query = Query.new(:name => '_', :project => @project)
+        @query = IssueQuery.new(:name => '_', :project => @project)
         @query.add_filter('assigned_to_role', '=', [@manager_role.id.to_s])
 
         assert_query_result [@issue1, @issue3], @query
@@ -1209,28 +1209,28 @@ class QueryTest < ActiveSupport::TestCase
 
       should "return an empty set with empty role" do
         @empty_role = Role.generate!
-        @query = Query.new(:name => '_', :project => @project)
+        @query = IssueQuery.new(:name => '_', :project => @project)
         @query.add_filter('assigned_to_role', '=', [@empty_role.id.to_s])
 
         assert_query_result [], @query
       end
 
       should "search assigned to for users without the Role" do
-        @query = Query.new(:name => '_', :project => @project)
+        @query = IssueQuery.new(:name => '_', :project => @project)
         @query.add_filter('assigned_to_role', '!', [@manager_role.id.to_s])
 
         assert_query_result [@issue2, @issue4, @issue5], @query
       end
 
       should "search assigned to for users not assigned to any Role (none)" do
-        @query = Query.new(:name => '_', :project => @project)
+        @query = IssueQuery.new(:name => '_', :project => @project)
         @query.add_filter('assigned_to_role', '!*', [''])
 
         assert_query_result [@issue4, @issue5], @query
       end
 
       should "search assigned to for users assigned to any Role (all)" do
-        @query = Query.new(:name => '_', :project => @project)
+        @query = IssueQuery.new(:name => '_', :project => @project)
         @query.add_filter('assigned_to_role', '*', [''])
 
         assert_query_result [@issue1, @issue2, @issue3], @query
@@ -1238,12 +1238,11 @@ class QueryTest < ActiveSupport::TestCase
 
       should "return issues with ! empty role" do
         @empty_role = Role.generate!
-        @query = Query.new(:name => '_', :project => @project)
+        @query = IssueQuery.new(:name => '_', :project => @project)
         @query.add_filter('assigned_to_role', '!', [@empty_role.id.to_s])
 
         assert_query_result [@issue1, @issue2, @issue3, @issue4, @issue5], @query
       end
     end
   end
-
 end