app/views/category/new.erb
In this file , i have two line like this
<!-- <p><label for="book_subject">Subject</label>: -->
<!-- <%= collection_select(:book,:subject_id,@subjects,:id,:name) %></p> -->
But, if these two lines are present , i get an error saying "you have an unexpected nil error"
well its strange :)) you are Doing exactly ok for comments as i see http://www.w3schools.com/tags/tag_comment.asp You should post this with new username
that may works…
please look at this also http://htmlhelp.com/reference/wilbur/misc/comment.html
So find where your Ruby error is -- this certainly has nothing to do with HTML commenting.
Hi,
I am looking for Matz and Keiju’s book is first published, the first Ruby book.Please mail if any one have,
Cheers, Sai
Can you post categories controller new action content?
change
<!-- <%= collection_select(:book,:subject_id,@subjects,:id,:name) %></
-->
to <%#= collection_select(:book,:subject_id,@subjects,:id,:name) %>
Ugis Ozols wrote:
Can you post categories controller new action content?
here is this: though the erb is called as "new.erb". the action in the controller is named as "create"
def create @category = Category.new(params[:category]) if @category.save redirect_to :action => 'list' else # @subjects = Subject.find(:all) render :action => 'new' end end
here is the full content of category_controller.rb
Just thought of giving a bit moe info: So, i added these two lines back into new.erb and reproduced this error.
here is the exact error message:
Hint: where on line 14 do you see something that should be an Array?
And where is the value of that Array object being set in your code?
Regardless of the HTML comments in your view file, the Ruby inside the <% %> tags will get evaluated - if it's invalid it will error (as it is); if it's valid, you'd end up with a commented-out html select tag...
if you just want it commented, comment the Ruby:
<!-- <%#= collection_select(:book,:subject_id,@subjects,:id,:name) %></p> -->
If you want a select tag, read the documents on collection_select and ensure @subjects is correctly populated with objects (or is an empty array). http://api.rubyonrails.org/classes/ActionView/Helpers/FormOptionsHelper.html#M002303
I am new in ruby but i will try to help you. I think that in your controller should have the new def def new ....... @subjects = Subject.find(:all) ........ end
this will give information that you need in your view file.
hi, you can not just comment these lines because the second line having Ruby code inside<%= ...%> for this line you may use # like as written below. <%#= collection_select(:book,:subject_id,@subjects,:id,:name) %> Now it is commented out. And code will not read this line...
Anything else, You are most welcome.
Santosh
app/views/category/new.erb
In this file , i have two line like this
<!-- <p><label for="book_subject">Subject</label>: -->
<!-- <%= collection_select(:book,:subject_id,@subjects,:id,:name) %></p> -->
But, if these two lines are present , i get an error saying "you have an unexpected nil error"
---------------------------- here is the full file: app/views/category# more new* <h1>Add new Category </h1> <%= form_tag :action => 'create'%> <p><label for="category_title">Category Title</label>: <%= text_field 'category', 'category_title' %></p>
<p><label for="categoy_short_desc">Category Short Description</label>: <%= text_field 'category', 'category_short_desc' %></p>
<p><label for="categoy_long_desc">Category Long Description</label>: <%= text_area 'category', 'category_long_desc' %></p>
<!-- <p><label for="book_subject">Subject</label>: -->
<!-- <%= collection_select(:book,:subject_id,@subjects,:id,:name) %></p> -->
<%= submit_tag "Create" %> <%= form_tag %> <%= link_to 'Back', {:action => 'list'} %>
-----------------------
If i remove these two lines <!-- <p><label for="book_subject">Subject</label>: -->
<!-- <%= collection_select(:book,:subject_id,@subjects,:id,:name) %></p> -->
then new.erb works fine.
Why so? Why can't comment these two lines?
I'm sure there is some problem. But, i couldn't see what it is.
please let me know if u could what the problem is in cmmenting these two lines.
thanks, radha -- Posted viahttp://www.ruby-forum.com/.