diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 920dbd5e4..73d3ee05f 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -472,15 +472,13 @@ class ProjectsController < ApplicationController
     @date_from = Date.civil(@year, @month, 1)
     @date_to = @date_from >> 1
     
-    @events_by_day = {}    
+    @events_by_day = Hash.new { |h,k| h[k] = [] }
     
     unless params[:show_issues] == "0"
       @project.issues.find(:all, :include => [:author], :conditions => ["#{Issue.table_name}.created_on BETWEEN ? AND ?", @date_from, @date_to] ).each { |i|
-        @events_by_day[i.created_on.to_date] ||= []
         @events_by_day[i.created_on.to_date] << i
       }
       @project.issue_changes.find(:all, :include => :details, :conditions => ["(#{Journal.table_name}.created_on BETWEEN ? AND ?) AND (#{JournalDetail.table_name}.prop_key = 'status_id')", @date_from, @date_to] ).each { |i|
-        @events_by_day[i.created_on.to_date] ||= []
         @events_by_day[i.created_on.to_date] << i
       }
       @show_issues = 1
@@ -488,7 +486,6 @@ class ProjectsController < ApplicationController
     
     unless params[:show_news] == "0"
       @project.news.find(:all, :conditions => ["#{News.table_name}.created_on BETWEEN ? AND ?", @date_from, @date_to], :include => :author ).each { |i|
-        @events_by_day[i.created_on.to_date] ||= []
         @events_by_day[i.created_on.to_date] << i
       }
       @show_news = 1 
@@ -497,9 +494,8 @@ class ProjectsController < ApplicationController
     unless params[:show_files] == "0"
       Attachment.find(:all, :select => "#{Attachment.table_name}.*",
                             :joins => "LEFT JOIN #{Version.table_name} ON #{Version.table_name}.id = #{Attachment.table_name}.container_id",
-                            :conditions => ["#{Attachment.table_name}.container_type='Version' and #{Version.table_name}.project_id=? and #{Attachment.table_name}.created_on BETWEEN ? AND ?", @project.id, @date_from, @date_to],
+                            :conditions => ["#{Attachment.table_name}.container_type='Version' and #{Version.table_name}.project_id=? and #{Attachment.table_name}.created_on BETWEEN ? AND ? ", @project.id, @date_from, @date_to],
                             :include => :author ).each { |i|
-        @events_by_day[i.created_on.to_date] ||= []
         @events_by_day[i.created_on.to_date] << i
       }
       @show_files = 1 
@@ -507,14 +503,12 @@ class ProjectsController < ApplicationController
     
     unless params[:show_documents] == "0"
       @project.documents.find(:all, :conditions => ["#{Document.table_name}.created_on BETWEEN ? AND ?", @date_from, @date_to] ).each { |i|
-        @events_by_day[i.created_on.to_date] ||= []
         @events_by_day[i.created_on.to_date] << i
       }
       Attachment.find(:all, :select => "attachments.*",
                             :joins => "LEFT JOIN #{Document.table_name} ON #{Document.table_name}.id = #{Attachment.table_name}.container_id",
-                            :conditions => ["#{Attachment.table_name}.container_type='Document' and #{Document.table_name}.project_id=? and #{Attachment.table_name}.created_on BETWEEN ? AND ?", @project.id, @date_from, @date_to],
+                            :conditions => ["#{Attachment.table_name}.container_type='Document' and #{Document.table_name}.project_id=? and #{Attachment.table_name}.created_on BETWEEN ? AND ? ", @project.id, @date_from, @date_to],
                             :include => :author ).each { |i|
-        @events_by_day[i.created_on.to_date] ||= []
         @events_by_day[i.created_on.to_date] << i
       }
       @show_documents = 1 
@@ -533,8 +527,6 @@ class ProjectsController < ApplicationController
         def i.created_on
           self.updated_on
         end
-
-        @events_by_day[i.created_on.to_date] ||= []
         @events_by_day[i.created_on.to_date] << i
       }
       @show_wiki_edits = 1
@@ -545,7 +537,6 @@ class ProjectsController < ApplicationController
         def i.created_on
           self.committed_on
         end
-        @events_by_day[i.created_on.to_date] ||= []
         @events_by_day[i.created_on.to_date] << i
       }
       @show_changesets = 1