diff --git a/app/controllers/tickets_controller.rb b/app/controllers/tickets_controller.rb
index 7bef119a1..3c29ae9a1 100644
--- a/app/controllers/tickets_controller.rb
+++ b/app/controllers/tickets_controller.rb
@@ -110,32 +110,13 @@ class TicketsController < ApplicationController
   # GET /api/tickets_customer
   def ticket_customer
 
-    # get closed/open states
-    ticket_state_list_open   = Ticket::State.where(
-      :state_type_id => Ticket::StateType.where( :name => ['new','open', 'pending reminder', 'pending action'] )
-    )
-    ticket_state_list_closed = Ticket::State.where(
-      :state_type_id => Ticket::StateType.where( :name => ['closed'] )
-    )
-
-    # get tickets
-    tickets_open = Ticket.where(
-      :customer_id     => params[:customer_id],
-      :ticket_state_id => ticket_state_list_open
-    ).limit(15).order('created_at DESC')
-
-    tickets_closed = Ticket.where(
-      :customer_id     => params[:customer_id],
-      :ticket_state_id => ticket_state_list_closed
-    ).limit(15).order('created_at DESC')
-
     # return result
+    result = Ticket.list_by_customer(
+      :customer_id => params[:customer_id],
+      :limit       => 15,
+    )
     render :json => {
-      :tickets => {
-        :open   => tickets_open,
-        :closed => tickets_closed
-      }
-      # :users => users,
+      :tickets => result
     }
   end
 
@@ -212,12 +193,11 @@ class TicketsController < ApplicationController
   # GET /api/ticket_merge_list/1
   def ticket_merge_list
 
-    # get closed/open states
-    ticket_states   = Ticket::State.where(
-      :state_type_id => Ticket::StateType.where( :name => ['new','open', 'pending reminder', 'pending action', 'closed'] )
+    ticket      = Ticket.find( params[:ticket_id] )
+    ticket_list = Ticket.where(
+      :customer_id     => ticket.customer_id,
+      :ticket_state_id => Ticket::State.by_category( 'open' )
     )
-    ticket = Ticket.find( params[:ticket_id] )
-    ticket_list = Ticket.where( :customer_id => ticket.customer_id, :ticket_state_id => ticket_states )
     .where( 'id != ?', [ ticket.id ] )
     .order('created_at DESC')
     .limit(6)
diff --git a/app/models/observer/ticket/user_ticket_counter.rb b/app/models/observer/ticket/user_ticket_counter.rb
index 69495aca1..e3accb90d 100644
--- a/app/models/observer/ticket/user_ticket_counter.rb
+++ b/app/models/observer/ticket/user_ticket_counter.rb
@@ -14,25 +14,17 @@ class Observer::Ticket::UserTicketCounter < ActiveRecord::Observer
     return if !record.customer_id
 
     # open ticket count
-    ticket_state_open_ids = Cache.get( 'ticket::state_ids::open' )
-    if !ticket_state_open_ids
-      ticket_state_open_ids = self.state_ids( ['new','open', 'pending reminder', 'pending action'] )
-      Cache.write( 'ticket::state_ids::open', ticket_state_open_ids, { :expires_in => 1.hour } )
-    end
-    tickets_open = Ticket.where(
+    ticket_state_open = Ticket::State.by_category( 'open' )
+    tickets_open      = Ticket.where(
       :customer_id     => record.customer_id,
-      :ticket_state_id => ticket_state_open_ids,
+      :ticket_state_id => ticket_state_open,
     ).count()
 
     # closed ticket count
-    ticket_state_closed_ids = Cache.get( 'ticket::state_ids::closed' )
-    if !ticket_state_closed_ids
-      ticket_state_closed_ids = self.state_ids( ['closed'] )
-      Cache.write( 'ticket::state_ids::closed', ticket_state_closed_ids, { :expires_in => 1.hour } )
-    end
-    tickets_closed = Ticket.where(
+    ticket_state_closed = Ticket::State.by_category( 'closed' )
+    tickets_closed      = Ticket.where(
       :customer_id     => record.customer_id,
-      :ticket_state_id => ticket_state_closed_ids,
+      :ticket_state_id => ticket_state_closed,
     ).count()
 
     # check if update is needed
@@ -51,17 +43,5 @@ class Observer::Ticket::UserTicketCounter < ActiveRecord::Observer
     end
   end
 
-  def state_ids(ticket_state_types)
-    ticket_state_types = Ticket::StateType.where(
-        :name => ticket_state_types,
-    )
-    ticket_states = Ticket::State.where( :state_type_id => ticket_state_types )
-    ticket_state_ids = []
-    ticket_states.each {|ticket_state|
-      ticket_state_ids.push ticket_state.id
-    }
-    ticket_state_ids
-  end
-
 end
 
diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index 0ea4101be..a90522c27 100644
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -520,11 +520,8 @@ class Ticket < ApplicationModel
   end
 
   def self.escalation_calculation_rebuild
-    ticket_state_list_open   = Ticket::State.where(
-      :state_type_id => Ticket::StateType.where(
-        :name => ['new','open', 'pending reminder', 'pending action']
-      )
-    )
+    ticket_state_list_open = Ticket::State.by_category( 'open' )
+    
     tickets = Ticket.where( :ticket_state_id => ticket_state_list_open )
     tickets.each {|ticket|
       ticket.escalation_calculation
@@ -693,6 +690,47 @@ class Ticket < ApplicationModel
     self.save
   end
 
+=begin
+
+list tickets by customer groupd in state categroie open and closed
+
+  result = Ticket.list_by_customer(
+    :customer_id     => 123,
+    :limit           => 15, # optional, default 15
+  )
+
+returns
+
+  result = {
+    :open   => tickets_open,
+    :closed => tickets_closed,
+  }
+
+=end
+
+  def self.list_by_customer(data)
+
+    # get closed/open states
+    ticket_state_list_open   = Ticket::State.by_category( 'open' )
+    ticket_state_list_closed = Ticket::State.by_category( 'closed' )
+
+    # get tickets
+    tickets_open = Ticket.where(
+      :customer_id     => data[:customer_id],
+      :ticket_state_id => ticket_state_list_open
+    ).limit( data[:limit] || 15 ).order('created_at DESC')
+
+    tickets_closed = Ticket.where(
+      :customer_id     => data[:customer_id],
+      :ticket_state_id => ticket_state_list_closed
+    ).limit( data[:limit] || 15 ).order('created_at DESC')
+
+    return {
+      :open   => tickets_open,
+      :closed => tickets_closed,
+    }
+  end
+
   private
 
   def number_generate
diff --git a/app/models/ticket/state.rb b/app/models/ticket/state.rb
index 6ab1aef3d..734af04d3 100644
--- a/app/models/ticket/state.rb
+++ b/app/models/ticket/state.rb
@@ -3,4 +3,25 @@
 class Ticket::State < ApplicationModel
   belongs_to    :state_type,        :class_name => 'Ticket::StateType'
   validates     :name, :presence => true
+
+=begin
+
+list tickets by customer
+
+  states = Ticket::State.by_category('open') # open|closed
+
+=end
+
+  def self.by_category(category)
+    if category == 'open'
+      return Ticket::State.where(
+        :state_type_id => Ticket::StateType.where( :name => ['new', 'open', 'pending reminder', 'pending action'] )
+      )
+    elsif category == 'closed'
+  	  return Ticket::State.where(
+        :state_type_id => Ticket::StateType.where( :name => ['closed'] )
+      )
+  	end
+    raise "Unknown category '#{category}'"
+  end
 end