Ruby on Rails

Hello,
I'm trying to follow a book (www.RailsSpace.com). The book was made
with an older version of Rails, but I'm using Rails 3. I've got a
snippet of code in my application helper that is supposed to add a text
field... It does, but it comes out as escaped TEXT on the webpage. Here
is my helper method:

def text_field_for(form, field,
size=HTML_TEXT_FIELD_SIZE,
maxlength=DB_STRING_MAX_LENGTH)
label = content_tag("label", "#{field.humanize}:", :for => field)
form_field = form.text_field field, :size => size, :maxlength =>
maxlength
content_tag("div", "#{label} #{form_field}", :class => "form_row")
end

Then the ERB:
<%= text_field_for form, "first_name" %>

...and finally when it's rendered:
<label for="first_name">First name:</label> <input id="spec_first_name"
maxlength="255" name="spec[first_name]" size="15" type="text" value=""
/>

...which looks right, but it's escaped HTML text for some reason. Any
know why?

Thanks,
- Jeff Miller

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