use all tag in downcase see #34

app/models/ticket.rb

@@ -102,7 +102,7 @@ def generate_update(ticket, user)
       t.add_update(:tag_list,
                    Ticket.list_tag(self.tag_list).join(','),
                    Ticket.list_tag(ticket[:tag_list]).join(','))
-      self.tag_list = ticket[:tag_list]
+      self.tag_list = ticket[:tag_list].try(:downcase)
     end
 
     [[:state_id, State],
@@ -146,7 +146,7 @@ def self.paginate_by_search(q, conditions={})
             query_conditions[:state_name] = s[1]
           elsif s[0] == 'tagged'
             query_conditions[:tags] ||= []
-            query_conditions[:tags] << s[1]
+            query_conditions[:tags] << s[1].downcase
           elsif s[0] == 'closed'
             query_conditions[:closed] = (s[1] == 'true')
           else
@@ -175,7 +175,7 @@ def self.new_by_params(params, project, user)
 
   def self.list_tag(string)
     string.to_s.split(',').map { |name|
-      name.gsub(/[^\w_-]/i, '').strip
+      name.gsub(/[^\w_-]/i, '').strip.downcase
     }.uniq.sort
   end
 
@@ -253,6 +253,7 @@ def copy_user_creator_name
 
   def update_tags
     self.tags = Ticket.list_tag(self.tag_list)
+    self.tag_list = self.tag_list.downcase
   end
 
   def update_priority

spec/models/ticket_spec.rb

@@ -140,6 +140,9 @@ def valid_ticket
       Ticket.paginate_by_search("tagged:#{@second_tag} tagged:#{@third_tag}",
                                 :page => 1,
                                   :per_page => 10).sort_by(&:title).should == [@second_ticket, @four_ticket].sort_by(&:title)
+      Ticket.paginate_by_search("tagged:#{@second_tag.upcase} tagged:#{@third_tag.upcase}",
+                                :page => 1,
+                                  :per_page => 10).sort_by(&:title).should == [@second_ticket, @four_ticket].sort_by(&:title)
     end
 
     it 'should return all ticket with all tags define by tagged:xxx and state:xxx in query' do
@@ -592,6 +595,16 @@ def new_by_params(args={})
 
       end
     end
+
+    describe '#update_tags' do
+      it 'should save in downcase' do
+        Ticket.make(:tag_list => 'foo,bar,baz'.upcase).tags.should == Set.new(['bar','baz','foo'])
+
+      end
+      it 'should split tag_list' do
+        Ticket.make(:tag_list => 'foo,bar,baz').tags.should == Set.new(['bar','baz','foo'])
+      end
+    end
   end
 
 end