fix error for sort announcements because of get nil by call enable_manually_sort

app/helpers/announcements_helper.rb

@@ -1,4 +1,6 @@
 module AnnouncementsHelper
+  extend self
+
   def data_to_human_type(a,set_tag_ids=nil,tmp_enable_annc_dept=false,annc_depts=[])
     tmp_enable_annc_dept = @tmp_enable_annc_dept if @tmp_enable_annc_dept
     annc_depts = @annc_depts if @annc_depts
@@ -464,34 +466,34 @@ module AnnouncementsHelper
     </div>").html_safe
   end
 
-  class << self
-    def complementaryColor(my_hex)
-      if my_hex[0] == '#'
-        my_hex = my_hex[1..-1]
-      end
-      rgb = my_hex.split(//).each_slice(my_hex.length/3).map{|v| v.join}
-      comp = rgb.map{|a| (255 - a.to_i(16)).to_s(16).rjust(2,'0')}
-      '#'+comp.join
+  def complementaryColor(my_hex)
+    if my_hex[0] == '#'
+      my_hex = my_hex[1..-1]
     end
-    def lighten_color(my_hex,percent)
-      if my_hex[0] == '#'
-        my_hex = my_hex[1..-1]
-      end
-      rgb = my_hex.split(//).each_slice(my_hex.length/3).map{|v| v.join}
-      comp = rgb.collect do |a|
-        tmp = a.to_i(16)*(1+percent/100.0)
-        tmp = 255 if tmp>255
-        tmp = 0 if tmp < 0
-        tmp.to_i.to_s(16).rjust(2,'0')
-      end
-      '#'+comp.join
+    rgb = my_hex.split(//).each_slice(my_hex.length/3).map{|v| v.join}
+    comp = rgb.map{|a| (255 - a.to_i(16)).to_s(16).rjust(2,'0')}
+    '#'+comp.join
+  end
+
+  def lighten_color(my_hex,percent)
+    if my_hex[0] == '#'
+      my_hex = my_hex[1..-1]
     end
-    def enable_manually_sort
-      if defined?(OrbitHelper::SharedHash) && OrbitHelper::SharedHash
-        OrbitHelper::SharedHash['announcement'][:enable_manually_sort]
-      else
-        AnnouncementSetting.first.enable_manually_sort rescue false
-      end
+    rgb = my_hex.split(//).each_slice(my_hex.length/3).map{|v| v.join}
+    comp = rgb.collect do |a|
+      tmp = a.to_i(16)*(1+percent/100.0)
+      tmp = 255 if tmp>255
+      tmp = 0 if tmp < 0
+      tmp.to_i.to_s(16).rjust(2,'0')
+    end
+    '#'+comp.join
+  end
+
+  def enable_manually_sort
+    if defined?(OrbitHelper::SharedHash) && OrbitHelper::SharedHash
+      OrbitHelper::SharedHash['announcement'][:enable_manually_sort]
+    else
+      AnnouncementSetting.first.enable_manually_sort rescue false
     end
   end
 end