$(link).previous("input[type=hidden]") is undefined

Rails
1

I am getting this error when trying to use the remove link explained
in the Railscast:

error:
$(link).previous(“input[type=hidden]”) is undefined
remove_fields()applic…1065175 (line 6)
function onclick(event) { remove_fields(this); return false; }()1
(line 2)
[Break on this error] $(link).previous(“input[type=hidden]”).value =
“1”;

in the view file I have :

    <% echantillon_form.fields_for :treatments do |builder| %>
       <%=  render  "treatment", :f => builder %>
    <% end %>

in the partial I have :

     <tr>
     <td class ="name"> type d'examen: </td><td></td><td><%=

f.text_field :treatmenttype %>

     <tr>
     <td class ="name"> commentaires sur la preparation : </

td><%= f.text_field :preparation %>

     <%= f.hidden_field :_destroy %>

   <tr><td><%= link_to_function "remove", "remove_fields(this)"

%>

and in the appliction.js file I have:

function remove_fields(link) {

$(link).previous(“input[type=hidden]”).value = “1”;
$(link).up(“.treatmentfields”).hide();

}

2

On Apr 12, 11:22 am, ES [email protected] wrote:

function remove_fields(link) {

$(link).previous(“input[type=hidden]”).value = “1”;
$(link).up(“.treatmentfields”).hide();

Looks like because the hidden field and the link don’t have the same
parent - the previous function finds you the previous sibling element
(matching the selector if specified)

Fred

3

I had to restructure my page in html so that the link did follow the
hidden input field. It works now but when I follow the further
instructions in the railscast to have an “add” link to add an object,
I get this error:

undefined method `render_partial’ for #<ActionView::ReloadableTemplate:
0x9f80d28>

this is my view:

    <% echantillon_form.fields_for :treatments do |builder| %>
       <%=  render  "treatment", :f => builder %>
    <% end %>

  <%= link_to_add_fields "Add treatment",

echantillon_form, :treatments %>

On Apr 12, 1:22 pm, Frederick C. [email protected]

4

the problem was that I didn’t have “_fields” as part of the name of my
partial.