Index: app/models/query.rb
===================================================================
--- app/models/query.rb	(revision 1694)
+++ app/models/query.rb	(working copy)
@@ -88,7 +88,7 @@
                                  :date_past => [ ">t-", "<t-", "t-", "t", "w" ],
                                  :string => [ "=", "~", "!", "!~" ],
                                  :text => [  "~", "!~" ],
-                                 :integer => [ "=", ">=", "<=" ] }
+                                 :integer => [ "=", ">=", "<=", "!*" ] }
 
   cattr_reader :operators_by_filter_type
 
@@ -152,7 +152,8 @@
                            "updated_on" => { :type => :date_past, :order => 10 },
                            "start_date" => { :type => :date, :order => 11 },
                            "due_date" => { :type => :date, :order => 12 },
-                           "done_ratio" =>  { :type => :integer, :order => 13 }}                          
+                           "estimated_hours" => { :type => :date, :order => 13 },
+                           "done_ratio" =>  { :type => :integer, :order => 14 }}
     
     user_values = []
     user_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
Index: test/unit/query_test.rb
===================================================================
--- test/unit/query_test.rb	(revision 1694)
+++ test/unit/query_test.rb	(working copy)
@@ -26,11 +26,17 @@
     assert !query.available_filters.has_key?('cf_3')
   end
   
+  def find_issues_with_query(query)
+    Issue.find :all,
+      :include => [ :assigned_to, :status, :tracker, :project, :priority ], 
+      :conditions => query.statement
+  end
+  
   def test_query_with_multiple_custom_fields
     query = Query.find(1)
     assert query.valid?
     assert query.statement.include?("#{CustomValue.table_name}.value IN ('MySQL')")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    issues = find_issues_with_query(query)
     assert_equal 1, issues.length
     assert_equal Issue.find(3), issues.first
   end
@@ -41,72 +47,80 @@
     query.add_filter('cf_1', '!*', [''])
     assert query.statement.include?("#{Issue.table_name}.fixed_version_id IS NULL")
     assert query.statement.include?("#{CustomValue.table_name}.value IS NULL OR #{CustomValue.table_name}.value = ''")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
   
+  def test_operator_none_for_integer
+    query = Query.new(:project => Project.find(1), :name => '_')
+    query.add_filter('estimated_hours', '!*', [''])
+    issues = find_issues_with_query(query)
+    assert !issues.empty?
+    assert issues.all? {|i| !i.estimated_hours}
+  end
+
   def test_operator_all
     query = Query.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")
     assert query.statement.include?("#{CustomValue.table_name}.value IS NOT NULL AND #{CustomValue.table_name}.value <> ''")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
   
   def test_operator_greater_than
     query = Query.new(:project => Project.find(1), :name => '_')
     query.add_filter('done_ratio', '>=', ['40'])
     assert query.statement.include?("#{Issue.table_name}.done_ratio >= 40")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
 
   def test_operator_in_more_than
     query = Query.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', '>t+', ['15'])
     assert query.statement.include?("#{Issue.table_name}.due_date >=")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
 
   def test_operator_in_less_than
     query = Query.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', '<t+', ['15'])
     assert query.statement.include?("#{Issue.table_name}.due_date BETWEEN")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
 
   def test_operator_today
     query = Query.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', 't', [''])
     assert query.statement.include?("#{Issue.table_name}.due_date BETWEEN")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
 
   def test_operator_this_week_on_date
     query = Query.new(:project => Project.find(1), :name => '_')
     query.add_filter('due_date', 'w', [''])
     assert query.statement.include?("#{Issue.table_name}.due_date BETWEEN")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
 
   def test_operator_this_week_on_datetime
     query = Query.new(:project => Project.find(1), :name => '_')
     query.add_filter('created_on', 'w', [''])
     assert query.statement.include?("#{Issue.table_name}.created_on BETWEEN")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
 
   def test_operator_contains
     query = Query.new(:project => Project.find(1), :name => '_')
     query.add_filter('subject', '~', ['string'])
     assert query.statement.include?("#{Issue.table_name}.subject LIKE '%string%'")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
   
   def test_operator_does_not_contains
     query = Query.new(:project => Project.find(1), :name => '_')
     query.add_filter('subject', '!~', ['string'])
     assert query.statement.include?("#{Issue.table_name}.subject NOT LIKE '%string%'")
-    issues = Issue.find :all,:include => [ :assigned_to, :status, :tracker, :project, :priority ], :conditions => query.statement
+    find_issues_with_query(query)
   end
   
   def test_default_columns