Fix url encode and rescue duration method in model

app/controllers/admin/experiences_controller.rb

@@ -17,7 +17,7 @@ class Admin::ExperiencesController < OrbitMemberController
     @member = MemberProfile.find(experience_params['member_profile_id']) rescue nil
     @experience = Experience.new(experience_params)
     @experience.save
-    redirect_to '/admin/members/'+@member.to_param+'/Experience'
+    redirect_to URI.encode('/admin/members/'+@member.to_param+'/Experience')
   end
 
   def edit
@@ -30,7 +30,7 @@ class Admin::ExperiencesController < OrbitMemberController
     @experience = Experience.find(params[:id])
     @experience.update_attributes(experience_params)
     @experience.save
-    redirect_to '/admin/members/'+@member.to_param+'/Experience'
+    redirect_to URI.encode('/admin/members/'+@member.to_param+'/Experience')
   end
 
   def destroy
@@ -66,7 +66,7 @@ class Admin::ExperiencesController < OrbitMemberController
     @intro = @intro.nil? ? ExperienceIntro.new({:member_profile_id=>@member.id}) : @intro
     @intro.update_attributes(intro_params)
     @intro.save
-    redirect_to '/admin/members/'+@member.to_param+'/Experience'
+    redirect_to URI.encode('/admin/members/'+@member.to_param+'/Experience')
   end
 
   def get_settings

app/models/experience.rb

@@ -26,7 +26,11 @@ class Experience
   before_validation :add_http
 
   def duration
+    if !self.start_date.nil? or !self.end_date.nil?
       self.start_date.strftime('%Y.%m')+' ~ '+self.end_date.strftime('%Y.%m')
+    else
+      ""
+    end
   end
 
   def slug_title