On Mon, Jan 5, 2009 at 4:18 PM, James Byrne <li...@ruby-forum.com> wrote:
> I generate the following html on the page in question
>
> <tr id="entity_id_1">
> <td>Just An Entity</td>
> <td></td>
> <td>CORP</td>
> <td>000001</td>
> <td><a href="/entities/1">Show Entity</a></td>
> <td><a href="/entities/1/edit">Edit Entity</a></td>
> <td><a href="/entities/1" onclick="if (confirm('Are you sure?')) \
> { var f = document.createElement('form'); f.style.display =
> 'none';
> this.parentNode.appendChild(f); f.method = 'POST';
> f.action = this.href;var m = document.createElement('input');
> m.setAttribute('type', 'hidden'); m.setAttribute('name',
> '_method');
> m.setAttribute('value', 'delete');
> f.appendChild(m);f.submit();
> };return false;">Destroy Entity</a>
> </td>
> </tr>
>
> I have this step definition:
>
> When /I delete the "(.*)" entity/ do |row|
> visits entities_url
> my_entity = Entity.find_by_entity_name(
> "my entity number #{row.hll_words_to_i}")
> within("table > tr#entity_id_" + my_entity.id.to_s) do
> puts "table > tr#entity_id_" + my_entity.id.to_s
> click_link "Destroy Entity"
> end
> end
>
> The puts statement displays this:
>
> table > tr#entity_id_1
>
> after wich I see this:
>
> When I delete the "first" entity # features/app/models/entities
> #/step_definitions/entity_steps.rb:128
> You have a nil object when you didn't expect it!
> The error occurred while evaluating nil.to_html (NoMethodError)
>
> /usr/lib64/ruby/gems/1.8/gems/webrat-0.3.4/lib/webrat/core/scope.rb:176:in
> `scoped_dom'
> ...
>
> The table entries exist. The find_by_name returns a valid instance. I
> do not know what the nil object is. Can someone point out to me what I
> am missing?
Does your outputted HTML properly include a tbody in the table? If so
the selector you are using won't work. You would need to make match
any descendant rather than any direct child, ie: "table
tr#entity_id_1"
On a related note (although not specific your problem at hand) to
generate an id on an ActiveRecord model you can use the dom_id helper
method provided by Rails. ie: "dom_id(entity)". You can use this both
in your template and your steps/specs. And rather than hardcoding
"table tr" CSS selectors why not just give your table an id like
"entities" and then use dom_id to give your rows ids? Should you
change the display to a ul or ol you wouldn't have to go back and
change your CSS selectors,
--
Zach Dennis
http://www.continuousthinking.com
http://www.mutuallyhuman.com
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