Saturday progress

app/models/table.rb

@@ -1,5 +1,6 @@
 class Table
   include SimplyStored::Couch
+  per_page_method :limit_value #kaminari
 
   property :number, type: Fixnum, default: 1
   property :position_x, type: Float
@@ -21,8 +22,16 @@ class Table
   view :by_number, key: :number
 
   def self.for_supplier(supplier, options = {})
-    startkey = options[:from_number].present? ? [supplier.id, options.delete(:from_number).to_i] : [supplier.id]
-    endkey = options[:to_number].present? ? [supplier.id, options.delete(:to_number).to_i]: [supplier.id, {}]
+    startkey =  if from_number = options.delete(:from_number).presence
+                  [supplier.id, from_number.to_i]
+                else
+                  [supplier.id]
+                end
+    endkey =  if to_number = options.delete(:to_number).presence
+                [supplier.id, to_number.to_i]
+              else
+                [supplier.id, {}]
+              end
 
     total_entries = database.view(by_supplier_id_and_number({startkey: startkey, endkey: endkey, include_docs: false, reduce: true}))
     options[:total_entries] = total_entries