validates_presence_of is deprecated

app/models/dmsf_file.rb

@@ -42,7 +42,7 @@ class DmsfFile < ActiveRecord::Base
 
   scope :visible, lambda {|*args| where(DmsfFile.visible_condition(args.shift || User.current, *args)).readonly(false)}
   
-  validates_presence_of :name
+  validates :name, :presence => true
   validates_format_of :name, :with => DmsfFolder.invalid_characters,
     :message => l(:error_contains_invalid_character)
   

app/models/dmsf_file_revision.rb

@@ -48,9 +48,8 @@ class DmsfFileRevision < ActiveRecord::Base
                                                 "INNER JOIN #{Project.table_name} ON #{DmsfFile.table_name}.project_id = #{Project.table_name}.id",
                                               :conditions => ["#{DmsfFile.table_name}.deleted = :false", {:false => false}]
                                              }
-  
-  validates_presence_of :title
-  validates_presence_of :name
+    
+  validates :title, :name, :presence => true
   validates_format_of :name, :with => DmsfFolder.invalid_characters,
     :message => l(:error_contains_invalid_character)
   

app/models/dmsf_folder.rb

@@ -40,8 +40,8 @@ class DmsfFolder < ActiveRecord::Base
   scope :visible, lambda {|*args| {:conditions => "" }} #For future use, however best to be referenced now
 
   acts_as_customizable
-  
-  validates_presence_of :title
+    
+  validate :title, :presence => true
   validates_uniqueness_of :title, :scope => [:dmsf_folder_id, :project_id]
   
   validates_format_of :title, :with => @@invalid_characters,