Only check some user validations when the field has changed

diff --git a/app/models/user.rb b/app/models/user.rb
index d2535bbd48f2c41e585abe4135176f8434e19765..a817c0fcf404c5c518bd0f0fe613ca1fdde6e10d 100644 (file)
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -25,11 +25,11 @@ class User < ActiveRecord::Base
   validates_uniqueness_of :email
   validates_length_of :pass_crypt, :within => 8..255
   validates_length_of :display_name, :within => 3..255, :allow_nil => true
-  validates_email_format_of :email
-  validates_email_format_of :new_email, :allow_blank => true
-  validates_format_of :display_name, :with => /^[^\/;.,?]*$/
-  validates_format_of :display_name, :with => /^\S/, :message => "has leading whitespace"
-  validates_format_of :display_name, :with => /\S$/, :message => "has trailing whitespace"
+  validates_email_format_of :email, :if => Proc.new { |u| u.email_changed? }
+  validates_email_format_of :new_email, :allow_blank => true, :if => Proc.new { |u| u.new_email_changed? }
+  validates_format_of :display_name, :with => /^[^\/;.,?]*$/, :if => Proc.new { |u| u.display_name_changed? }
+  validates_format_of :display_name, :with => /^\S/, :message => "has leading whitespace", :if => Proc.new { |u| u.display_name_changed? }
+  validates_format_of :display_name, :with => /\S$/, :message => "has trailing whitespace", :if => Proc.new { |u| u.display_name_changed? }
   validates_numericality_of :home_lat, :allow_nil => true
   validates_numericality_of :home_lon, :allow_nil => true
   validates_numericality_of :home_zoom, :only_integer => true, :allow_nil => true