- validates_email_format_of :email
- validates_email_format_of :new_email, :allow_blank => true
- validates_format_of :display_name, :with => /^[^\/;.,?]*$/
+ validates_email_format_of :email, :if => Proc.new { |u| u.email_changed? }
+ validates_email_format_of :new_email, :allow_blank => true, :if => Proc.new { |u| u.new_email_changed? }
+ validates_format_of :display_name, :with => /^[^\/;.,?%#]*$/, :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? }