diff --git a/app/models/query.rb b/app/models/query.rb
index b1f784528..96e99ef94 100644
--- a/app/models/query.rb
+++ b/app/models/query.rb
@@ -195,6 +195,9 @@ class Query < ActiveRecord::Base
     end
     @available_filters["assigned_to_id"] = { :type => :list_optional, :order => 4, :values => user_values } unless user_values.empty?
     @available_filters["author_id"] = { :type => :list, :order => 5, :values => user_values } unless user_values.empty?
+
+    group_values = Group.all.collect {|g| [g.name, g.id] }
+    @available_filters["member_of_group"] = { :type => :list_optional, :order => 6, :values => group_values } unless group_values.empty?
     
     if User.current.logged?
       @available_filters["watcher_id"] = { :type => :list, :order => 15, :values => [["<< #{l(:label_me)} >>", "me"]] }
@@ -432,6 +435,22 @@ class Query < ActiveRecord::Base
         db_field = 'user_id'
         sql << "#{Issue.table_name}.id #{ operator == '=' ? 'IN' : 'NOT IN' } (SELECT #{db_table}.watchable_id FROM #{db_table} WHERE #{db_table}.watchable_type='Issue' AND "
         sql << sql_for_field(field, '=', v, db_table, db_field) + ')'
+      elsif field == "member_of_group" # named field
+        if operator == '*' # Any group
+          groups = Group.all
+          members_of_groups = groups.collect(&:user_ids).flatten.compact.collect(&:to_s)
+          operator = '=' # Override the operator since we want to find by assigned_to
+        elsif operator == "!*"
+          groups = Group.all
+          members_of_groups = groups.collect(&:user_ids).flatten.compact.collect(&:to_s)
+          operator = '!' # Override the operator since we want to find by assigned_to
+        else
+          groups = Group.find_all_by_id(v)
+          members_of_groups = groups.collect(&:user_ids).flatten.compact.collect(&:to_s)
+        end
+        
+        sql << '(' + sql_for_field("assigned_to_id", operator, members_of_groups, Issue.table_name, "assigned_to_id", false) + ')'
+
       else
         # regular field
         db_table = Issue.table_name
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 555043a8f..ba7a2da23 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -293,6 +293,7 @@ en:
   field_group_by: Group results by
   field_sharing: Sharing
   field_parent_issue: Parent task
+  field_member_of_group: Member of Group
   
   setting_app_title: Application title
   setting_app_subtitle: Application subtitle
diff --git a/test/unit/query_test.rb b/test/unit/query_test.rb
index 12ab5d932..acab56ffd 100644
--- a/test/unit/query_test.rb
+++ b/test/unit/query_test.rb
@@ -48,6 +48,16 @@ class QueryTest < ActiveSupport::TestCase
       :conditions => query.statement
   end
 
+  def assert_find_issues_with_query_is_successful(query)
+    assert_nothing_raised do
+      find_issues_with_query(query)
+    end
+  end
+
+  def assert_query_statement_includes(query, condition)
+    assert query.statement.include?(condition), "Query statement condition not found in: #{query.statement}"
+  end
+
   def test_query_should_allow_shared_versions_for_a_project_query
     subproject_version = Version.find(4)
     query = Query.new(:project => Project.find(1), :name => '_')
@@ -362,11 +372,87 @@ class QueryTest < ActiveSupport::TestCase
   end
 
   context "#available_filters" do
+    setup do
+      @query = Query.new(:name => "_")
+    end
+    
     should "include users of visible projects in cross-project view" do
-      query = Query.new(:name => "_")
-      users = query.available_filters["assigned_to_id"]
+      users = @query.available_filters["assigned_to_id"]
       assert_not_nil users
       assert users[:values].map{|u|u[1]}.include?("3")
     end
+
+    context "'member_of_group' filter" do
+      should "be present" do
+        assert @query.available_filters.keys.include?("member_of_group")
+      end
+      
+      should "be an optional list" do
+        assert_equal :list_optional, @query.available_filters["member_of_group"][:type]
+      end
+      
+      should "have a list of the groups as values" do
+        Group.destroy_all # No fixtures
+        group1 = Group.generate!.reload
+        group2 = Group.generate!.reload
+
+        expected_group_list = [
+                               [group1.name, group1.id],
+                               [group2.name, group2.id]
+                              ]
+        assert_equal expected_group_list, @query.available_filters["member_of_group"][:values]
+      end
+
+    end
+    
   end
+
+  context "#statement" do
+    context "with 'member_of_group' filter" do
+      setup do
+        Group.destroy_all # No fixtures
+        @user_in_group = User.generate!
+        @second_user_in_group = User.generate!
+        @user_in_group2 = User.generate!
+        @user_not_in_group = User.generate!
+        
+        @group = Group.generate!.reload
+        @group.users << @user_in_group
+        @group.users << @second_user_in_group
+        
+        @group2 = Group.generate!.reload
+        @group2.users << @user_in_group2
+        
+      end
+      
+      should "search assigned to for users in the group" do
+        @query = Query.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}')"
+        assert_find_issues_with_query_is_successful @query
+      end
+
+      should "search not assigned to any group member (none)" do
+        @query = Query.new(:name => '_')
+        @query.add_filter('member_of_group', '!*', [''])
+
+        # Users not in a group
+        assert_query_statement_includes @query, "#{Issue.table_name}.assigned_to_id IS NULL OR #{Issue.table_name}.assigned_to_id NOT IN ('#{@user_in_group.id}','#{@second_user_in_group.id}','#{@user_in_group2.id}')"
+        assert_find_issues_with_query_is_successful @query
+
+      end
+
+      should "search assigned to any group member (all)" do
+        @query = Query.new(:name => '_')
+        @query.add_filter('member_of_group', '*', [''])
+
+        # Only users in a group
+        assert_query_statement_includes @query, "#{Issue.table_name}.assigned_to_id IN ('#{@user_in_group.id}','#{@second_user_in_group.id}','#{@user_in_group2.id}')"
+        assert_find_issues_with_query_is_successful @query
+
+      end
+    end
+  end
+  
 end