continuing refactor of model validation calls to rails 3 syntax

app/models/person.rb

@@ -39,9 +39,11 @@ class Person < ActiveRecord::Base
 
   before_destroy :remove_all_traces
   before_validation :clean_url
-
-  validates_presence_of :url, :profile, :serialized_public_key
-  validates_uniqueness_of :diaspora_handle
+  
+  validates :url, :presence => true
+  validates :profile, :presence => true
+  validates :serialized_public_key, :presence => true
+  validates :diaspora_handle, :uniqueness => true
 
   scope :searchable, joins(:profile).where(:profiles => {:searchable => true})
   scope :remote, where('people.owner_id IS NULL')

app/models/post.rb

@@ -28,8 +28,8 @@ class Post < ActiveRecord::Base
   has_many :resharers, :class_name => 'Person', :through => :reshares, :source => :author
 
   belongs_to :author, :class_name => 'Person'
-
-  validates_uniqueness_of :guid
+  
+  validates :guid, :uniqueness => true
 
   def diaspora_handle
     read_attribute(:diaspora_handle) || self.author.diaspora_handle

app/models/profile.rb

@@ -12,7 +12,7 @@ class Profile < ActiveRecord::Base
 
   acts_as_taggable_on :tags
   extract_tags_from :tag_string
-  validates_length_of :tag_list, :maximum => 5
+  validates :tag_list, :length => { :maximum => 5 }
 
   xml_attr :diaspora_handle
   xml_attr :first_name
@@ -29,9 +29,10 @@ class Profile < ActiveRecord::Base
 
   before_save :strip_names
   after_validation :strip_names
-
-  validates_length_of :first_name, :maximum => 32
-  validates_length_of :last_name,  :maximum => 32
+  
+  validates :first_name, :length => { :maximum => 32 }
+  validates :last_name, :length => { :maximum => 32 }
+  
   validates_format_of :first_name, :with => /\A[^;]+\z/, :allow_blank => true
   validates_format_of :last_name, :with => /\A[^;]+\z/, :allow_blank => true
   validate :max_tags

app/models/request.rb

@@ -11,8 +11,10 @@ class Request
 
   xml_accessor :sender_handle
   xml_accessor :recipient_handle
-
-  validates_presence_of :sender, :recipient
+  
+  validates :sender, :presence => true
+  validates :recipient, :presence => true
+  
   validate :not_already_connected
   validate :not_friending_yourself
 

app/models/user.rb

@@ -18,9 +18,8 @@ class User < ActiveRecord::Base
 
   before_validation :strip_and_downcase_username
   before_validation :set_current_language, :on => :create
-
-  validates_presence_of :username
-  validates_uniqueness_of :username
+  
+  validates :username, :presence => true, :uniqueness => true
   validates_format_of :username, :with => /\A[A-Za-z0-9_]+\z/
   validates_length_of :username, :maximum => 32
   validates_inclusion_of :language, :in => AVAILABLE_LANGUAGE_CODES