视图中的：
<div class="depot-form">
<% form_for(@user) do |f| %>
<%= f.error_messages %>
<fieldset>
<legend>Enter User Details</legend>
<div>
<%= f.label :name %>:
<%= f.text_field :name, :size => 40 %>
</div>
<div>
<%= f.label :user_password, 'Password' %>:
<%= f.password_field :password, :size => 40 %>
</div>
<div>
<%= f.label :user_password_confirmation, 'Confirm' %>:
<%= f.password_field :password_confirmation, :size => 40 %>
</div>
<div>
<%= f.submit "Add User" , :class => "submit" %>
</div>
</fieldset>
<% end %>
</div>
模型中的：
# 'password' is a virtual attribute
def password
@password
end
def password=(pwd)
@password = pwd
return if pwd.blank?
create_new_salt
self.hashed_password = User.encrypted_password(self.password, self.salt)
end
private
def password_non_blank
errors.add(:password, "Missing password" ) if hashed_password.blank?
end
def create_new_salt
self.salt = self.object_id.to_s + rand.to_s
end
def self.encrypted_password(password, salt)
string_to_hash = password + "wibble" + salt
Digest::SHA1.hexdigest(string_to_hash)
end
end