Rails - May 2007 - Compile error question on a login.rhtml file (text included)

I am working my way through the January 2007 edition of "Build Your
Own Ruby on Rails Web Applications" by Patrick Lenz.  The application
in the book is a clone of digg.com and I am halfway through the book
with no problems.

I am now working on the user authentication portion, and I am getting
a compile error with the following 12 line file (typed exactly as
printed in the book):

<% form_tag do %>
  <p>Please log in.</p>
  <p>
    <label>Username:</label>
    <%= text_field_tag ''login'' %>
  </p>
  <p>
    <label>Password:</label>
    <%= password_field_tag ''password'' %>
  </p>
  <p><%= submit_tag ''login'' %></p>
<% end_form %>

The compile error is:

compile error
C:/CONDUC~1/rails_apps/shovell/config/../app/views/account/login.rhtml:
13: parse error, unexpected $, expecting kEND

Extracted source (around line #13):

10:   </p>
11:   <p><%= submit_tag ''login'' %></p>
12: <% end_form %>

My application''s environment is:

Ruby version	1.8.5 (i386-mswin32)
RubyGems version	0.9.2
Rails version	1.2.3
Active Record version	1.15.3
Action Pack version	1.13.3
Action Web Service version	1.2.3
Action Mailer version	1.3.3
Active Support version	1.4.2
Application root	C:/CONDUC~1/rails_apps/shovell
Environment	development
Database adapter	mysql
Database schema version	4

I suspect that I have a typo somewhere, but I need a fresh set of eyes
to review what I have typed to uncover it.  I realize that there might
be a version differential between what I have installed on my laptop
and the version used in the book (Ruby 1.8.4, Rails 1.2 Release
Candidate 2, MySQL General Release 5.0.27).

Thanks in advance for your guidance!

John


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On May 30, 2007, at 4:34 PM, carnegieja-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
wrote:
> I am working my way through the January 2007 edition of "Build Your
> Own Ruby on Rails Web Applications" by Patrick Lenz.  The application
> in the book is a clone of digg.com and I am halfway through the book
> with no problems.
>
> I am now working on the user authentication portion, and I am getting
> a compile error with the following 12 line file (typed exactly as
> printed in the book):
>
> <% form_tag do %>
>   <p>Please log in.</p>
>   <p>
>     <label>Username:</label>
>     <%= text_field_tag ''login'' %>
>   </p>
>   <p>
>     <label>Password:</label>
>     <%= password_field_tag ''password'' %>
>   </p>
>   <p><%= submit_tag ''login'' %></p>
> <% end_form %>
>
> The compile error is:
>
> compile error
> C:/CONDUC~1/rails_apps/shovell/config/../app/views/account/ 
> login.rhtml:
> 13: parse error, unexpected $, expecting kEND
You have two different approaches to building form mixed up here. If  
you''re starting a form with

<% form_tag do %>

then you need

<% end %>

to match the ''do''. (everything between them is considered a
block. So
your form should be:

<% form_tag do %>
   <p>Please log in.</p>
   <p>
     <label>Username:</label>
     <%= text_field_tag ''login'' %>
   </p>
   <p>
     <label>Password:</label>
     <%= password_field_tag ''password'' %>
   </p>
   <p><%= submit_tag ''login'' %></p>
<% end %>

For more, look at the form_tag API documentation at:

http://rails.rubyonrails.org/classes/ActionView/Helpers/ 
FormTagHelper.html#M000601

James.





-- 
James Stewart
Play: http://james.anthropiccollective.org
Work: http://jystewart.net/process/




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> You have two different approaches to building form mixed up here. If
> you''re starting a form with
>
> <% form_tag do %>
>
> then you need
>
> <% end %>
>
> to match the ''do''. (everything between them is considered
a block. So
> your form should be:
>
> <% form_tag do %>
>    <p>Please log in.</p>
>    <p>
>      <label>Username:</label>
>      <%= text_field_tag ''login'' %>
>    </p>
>    <p>
>      <label>Password:</label>
>      <%= password_field_tag ''password'' %>
>    </p>
>    <p><%= submit_tag ''login'' %></p>
> <% end %>
>
> For more, look at the form_tag API documentation at:
>
> http://rails.rubyonrails.org/classes/ActionView/Helpers/
> FormTagHelper.html#M000601
>
> James.
>
> --
> James Stewart
> Play:http://james.anthropiccollective.org
> Work:http://jystewart.net/process/
James,

Thank you for clarifying that point and providing the online reference
resource as well!  I made the change and it worked instantly.  This is
my first efforts at Ruby on Rails (and programming in general) with a
mountain of things to learn.  I hope to arrive at a point of
proficiency where I can contribute similar guidance to another newbie
in the near future.

Thanks again!

John


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