Rails - Dec 2010 - NoMethodError undefined method `password' for #<User:0x102295b28>

Hey all,

I''m following the Authenticating Your Users Recipe in Rails recipes,
which is a bit outdated I know.

It says run a migration:

  def self.up
    create_table :users do |t|
      t.column "username", :string
      t.column "password_salt", :string
      t.column "password_hash", :string
    end
  end

And then create a form:

<% form_for @user, :url => { :action => "signup" } do |f|
%>

  <%= f.label(:username, "username")%>
  <%= f.text_field(:username) %><br/>
  <%= f.label(:password, "password")%>
    <%= f.password_field(:password) %><br/>
    <%= f.submit("Sign Up")%>

<% end %>
#Note that he''s using the now defunct start_from_tag

Problem is because I don''t have a password field in users table in
database, I think it gives undefined method error for password when I
pass as argument in the password_field() method. However, in the book,
he does exactly that and it works for him.

Is there anything I''m doing wrong?

Thanks for response.

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On Dec 13, 2010, at 3:46 PM, John Merlino wrote:
> Hey all,
> 
> I''m following the Authenticating Your Users Recipe in Rails
recipes,
> which is a bit outdated I know.
> 
> It says run a migration:
> 
>  def self.up
>    create_table :users do |t|
>      t.column "username", :string
>      t.column "password_salt", :string
>      t.column "password_hash", :string
>    end
>  end
> 
> And then create a form:
> 
> <% form_for @user, :url => { :action => "signup" } do
|f| %>
> 
>  <%= f.label(:username, "username")%>
>  <%= f.text_field(:username) %><br/>
>  <%= f.label(:password, "password")%>
>    <%= f.password_field(:password) %><br/>
>    <%= f.submit("Sign Up")%>
> 
> <% end %>
> #Note that he''s using the now defunct start_from_tag
> 
> Problem is because I don''t have a password field in users table in
> database, I think it gives undefined method error for password when I
> pass as argument in the password_field() method. However, in the book,
> he does exactly that and it works for him.
> 
> Is there anything I''m doing wrong?
What''s your model look like?  You''ll want the following in
your User model...

attr :password

And some hooks to convert that into password_hash I suppose as well...

-philip

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John Merlino wrote in post #968183:
> Hey all,
>
> I''m following the Authenticating Your Users Recipe in Rails
recipes,
> which is a bit outdated I know.
>
> It says run a migration:
>
>   def self.up
>     create_table :users do |t|
>       t.column "username", :string
>       t.column "password_salt", :string
>       t.column "password_hash", :string
>     end
>   end
>
> And then create a form:
>
> <% form_for @user, :url => { :action => "signup" } do
|f| %>
>
>   <%= f.label(:username, "username")%>
>   <%= f.text_field(:username) %><br/>
>   <%= f.label(:password, "password")%>
>     <%= f.password_field(:password) %><br/>
>     <%= f.submit("Sign Up")%>
>
> <% end %>
> #Note that he''s using the now defunct start_from_tag
>
> Problem is because I don''t have a password field in users table in
> database, I think it gives undefined method error for password when I
> pass as argument in the password_field() method. However, in the book,
> he does exactly that and it works for him.
>
> Is there anything I''m doing wrong?
The example should never have worked, unless he''s relying on some 
particular authentication library (or an attr_accessor call) to create 
the password method.

However, you''re doing two things wrong here:
* Following an outdated book
* Trying to roll your own authentication library -- just go with 
Authlogic or Devise.
>
> Thanks for response.
Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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> However, you''re doing two things wrong here:
> * Following an outdated book
> * Trying to roll your own authentication library -- just go with
> Authlogic or Devise.
This is for a personal project that doesn''t require rapid development. 
I''m just trying to build my own authentication system so I can better 
understand the Rails environment. Like you said, perhaps he''s declaring
a setter and getter method of the User class with the identifier of 
"password". Nevertheless nowhere is it explained how to translate this
to a password hash in this book. I looked at the Advanced Recipes book 
and it doesn''t cover authentication at all.

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