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PORails, update method and validation
 

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    <p>I have a problem and I need an idea how to fix my update method. I have an admin panel where I can create users. This form include name, mail, password, repeated password fields and it works fine. Then I want to have a list of all users and to edit these who I want. The problem is that I want to edit part of the information which is not included in the form of the registration and default is empty. In edit mode my form has two new fields - notes and absences. When I change these fields and call update method I see message that password and repeated password don't match which is validation in the registration but I do not have these files in edit mode. How could I fix this problem. This is part of my code:</p> <pre><code>class UsersController &lt; ApplicationController def edit @user = User.find(params[:id]) @title = "Edit user" end def update @user = User.find(params[:id]) if @user.update_attributes(params[:user]) flash[:success] = "Profile updated." redirect_to @user else @title = "Edit user" render 'edit' end end class User &lt; ActiveRecord::Base attr_accessor :password attr_accessible :name, :email, :password, :password_confirmation validates :name, :presence =&gt; true, :length =&gt; { :maximum =&gt; 50 } validates :email, :presence =&gt; true email_regex = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i validates :email, :presence =&gt; true, :format =&gt; { :with =&gt; email_regex }, :uniqueness =&gt; true validates :password, :presence =&gt; true, :confirmation =&gt; true, :length =&gt; { :within =&gt; 6..40 } before_save :encrypt_password def has_password?(submitted_password) encrypted_password == encrypt(submitted_password) end def self.authenticate(email, submitted_password) user = find_by_email(email) return nil if user.nil? return user if user.has_password?(submitted_password) end def self.authenticate_with_salt(id, cookie_salt) user = find_by_id(id) (user &amp;&amp; user.salt == cookie_salt) ? user : nil end private def encrypt_password self.salt = make_salt unless has_password?(password) self.encrypted_password = encrypt(password) end def encrypt(string) secure_hash("#{salt}--#{string}") end def make_salt secure_hash("#{Time.now.utc}--#{password}") end def secure_hash(string) Digest::SHA2.hexdigest(string) end end </code></pre>
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