diff --git a/app/models/discount.rb b/app/models/discount.rb
index 589a0b7..4600be5 100644
--- a/app/models/discount.rb
+++ b/app/models/discount.rb
@@ -1,5 +1,5 @@
 class Discount < ActiveRecord::Base
   has_many :users
 
-  validates :value , :presence => true
+  validates :value , :presence => true, :numericality => { :greater_than => 0, :less_than_or_equal_to => 1.0 }
 end
diff --git a/app/models/product.rb b/app/models/product.rb
index b964685..9e444cd 100644
--- a/app/models/product.rb
+++ b/app/models/product.rb
@@ -9,6 +9,7 @@ class Product < ActiveRecord::Base
   validates :title, :presence => true, :length => {:minimum => 3, :maximum => 300}
   validates :company_id,:group_id, :numericality => true, :presence => true
   validates :status, :presence => true, :inclusion => { :in => ["new", "enable", "disable"] }
+  validates :price, :presence => true, :numericality => { :greater_than => 0 }
 
   before_save :update_product_description