ruby - Rails trying to create a user when updating user details -

i'm learning rails , building authentication system using guides around web , following railscasts tutorials.

i've come stand still @ moment , need bit of assistance if possible.

when ever try edit user profile, error message tells me can't create account due fields such email , username being taken.

looking around seems it's related how edit form being submitted, can't solve it!

any appreciated.

users_controller.rb

def edit  @user = user.find(params[:id]) end  def update   @user = user.find(params[:id])   if @user.update_attributes(user_params)   flash[:success] = "profile updated"   redirect_to @user   else     render 'edit'   end end 

edit.html.erb <%= form_for :user, url: '/users' |f| %>

            <form class="m-t" role="form" action="#">                 <div class="form-group">                   <%= f.label :name %>                   <%= f.text_field :name, class: 'form-control', autocomplete: "off" %>                 </div>                 <div class="form-group">                   <%= f.label :user_type %>                   <%= f.select(:user_type, ['admin', 'technical', 'accounts'], {}, { :class => 'form-control' }) %>                 </div>                 <div class="form-group">                   <%= f.label :email %>                   <%= f.text_field :email, class: 'form-control' %>                 </div>                 <div class="form-group">                   <%= f.label :telephone %>                   <%= f.text_field :telephone, class: 'form-control' %>                 </div>                 <div class="form-group">                   <%= f.label :mobile %>                   <%= f.text_field :mobile, class: 'form-control' %>                 </div>                 <div class="form-group">                   <%= f.label :user_name %>                   <%= f.text_field :user_name, class: 'form-control' %>                 </div>                 <div class="form-group">                   <%= f.label :password %>                   <%= f.password_field :password, class: 'form-control' %>                 </div>                 <div class="form-group">                   <%= f.label :password_confirmation %>                   <%= f.password_field :password_confirmation, class: 'form-control' %>                 </div>                 <div class="form-group">                   <%= f.label :company_admin%>                   <%= f.check_box :company_admin, class: 'form-control' %>                 </div>                 <div class="form-group">                   <%= f.label :user_admin %>                   <%= f.check_box :user_admin, class: 'form-control' %>                 </div>                 <div class="form-group">                   <%= f.label :emergency_contact %>                   <%= f.check_box :emergency_contact, class: 'form-control' %>                 </div>                 <div class="form-group">                   <%= f.submit "submit", class: "btn btn-primary block full-width m-b" %>                 </div>             </form>              <% end %> 

rails log

user exists (0.2ms)  select  1 one "users" "users"."email" = 'emailaddress@gmail.com' limit 1 user exists (0.1ms)  select  1 one "users" "users"."user_name" = 'ausername' limit 1 

user.rb

class user < activerecord::base  has_secure_password   validates :name, presence: { message: "please enter name." }  validates_uniqueness_of :email, presence: { message: "please enter email address." }  validates_format_of :email, with: /\a([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]    {2,})\z/i, message: "please enter valid email address.", allow_blank: true  validates :telephone, presence: { message: "please enter phone number." }  validates :mobile, presence: { message: "please enter mobile number." }  validates_uniqueness_of :user_name, presence: { message: "please enter user name." }  validates_confirmation_of :password, presence: { message: "please enter password" }, allow_nil: true   before_create { generate_token(:auth_token) }   def generate_token(column)   begin    self[column] = securerandom.urlsafe_base64   end while user.exists?(column => self[column])  end   def send_password_reset   generate_token(:password_reset_token)   self.password_reset_sent_at = time.zone.now   save!   usermailer.password_reset(self).deliver  end  end 

wait i'm wrong on validation. spotted it.

<%= form_for :user, url: '/users' |f| %> 

this won't use @user object, means rails thinks you're trying create user.

switch to

<%= form_for @user |f| %> 

rails infer correct place post won't need url option anymore.