Fixed: "None" category issue count is empty while grouping by category (#4308).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3112 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/query.rb

@@ -37,6 +37,10 @@ class QueryColumn
   def sortable?
     !sortable.nil?
   end
+  
+  def value(issue)
+    issue.send name
+  end
 end
 
 class QueryCustomFieldColumn < QueryColumn
@@ -58,6 +62,11 @@ class QueryCustomFieldColumn < QueryColumn
   def custom_field
     @cf
   end
+  
+  def value(issue)
+    cv = issue.custom_values.detect {|v| v.custom_field_id == @cf.id}
+    cv && @cf.cast_value(cv.value)
+  end
 end
 
 class Query < ActiveRecord::Base
@@ -407,16 +416,20 @@ class Query < ActiveRecord::Base
   
   # Returns the issue count by group or nil if query is not grouped
   def issue_count_by_group
+    r = nil
     if grouped?
       begin
         # Rails will raise an (unexpected) RecordNotFound if there's only a nil group value
-        Issue.count(:group => group_by_statement, :include => [:status, :project], :conditions => statement)
+        r = Issue.count(:group => group_by_statement, :include => [:status, :project], :conditions => statement)
       rescue ActiveRecord::RecordNotFound
-        {nil => issue_count}
+        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
-    else
-      nil
     end
+    r
   rescue ::ActiveRecord::StatementInvalid => e
     raise StatementInvalid.new(e.message)
   end