Hello, I''m in troubles trying to use ''link_to_remote''
on Rails 2.1.
Having this page:
<h4>Editing project</h4>
<% form_for(:project, :url => project_path(@project), :html =>
{ :method => :put }) do |f| %>
<p>
Name <%= f.text_field :name %>
Date <%= calendar_date_select :project, :target_date, :time =>
false %>
<%= image_submit_tag(''accept.png'', :alt =>
"Update", :class =>
''icon'') %>
<%= link_to_remote image_tag(''cross.png'', :alt
=>
''Cancel''), :url => cancel_edit_project_path, :method =>
:get %>
</p>
<% end %>
<% form_remote_for(:project, :url =>
add_contributor_project_path(@project), :html => { :method => :put })
do |f| %>
<h4>Contributors</h4> Add contributor <%= text_field_tag
''contributor''
%> <%= image_submit_tag(''add.png'', :class =>
''icon'') %>
<% end %>
<%= render :partial => ''contributors'', :object =>
@project %>
And the contributors partial:
<ul id="contributors">
<% for contributor in @project.contributors %>
<li id="contributor.<%= contributor.id %>">
<% link_to_remote image_tag(''delete.png'', :size
=>
''16x16'', :alt => ''Destroy''),
delete_contributor_project_path(@project),
:method => :put, :contributor_id =>
contributor.id %>
<%= contributor.user.name %>
</li>
<% end %>
</ul>
I get this error:
ActionView::TemplateError (You have a nil object when you didn''t
expect it!
You might have expected an instance of ActiveRecord::Base.
The error occurred while evaluating nil.[]) on line #4 of projects/
_contributors.html.erb:
1: <ul id="contributors">
2: <% for contributor in @project.contributors %>
3: <li id="contributor.<%= contributor.id %>">
4: <% link_to_remote image_tag(''delete.png'',
:size =>
''16x16'', :alt => ''Destroy''),
5:
delete_contributor_project_path(params[:project_id]),
6: :method => :put, :contributor_id =>
contributor.id %>
7: <%= contributor.user.name %>
/usr/lib64/ruby/gems/1.8/gems/actionpack-2.1.0/lib/
action_controller/url_rewriter.rb:102:in `rewrite_url''
/usr/lib64/ruby/gems/1.8/gems/actionpack-2.1.0/lib/
action_controller/url_rewriter.rb:88:in `rewrite''
/usr/lib64/ruby/gems/1.8/gems/actionpack-2.1.0/lib/
action_controller/base.rb:621:in `url_for''
/usr/lib64/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_view/
helpers/url_helper.rb:76:in `send''
/usr/lib64/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_view/
helpers/url_helper.rb:76:in `url_for''
/usr/lib64/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_view/
helpers/prototype_helper.rb:461:in `remote_function''
/usr/lib64/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_view/
helpers/prototype_helper.rb:255:in `link_to_remote''
app/views/projects/_contributors.html.erb:4:in
`_run_erb_47app47views47projects47_contributors46html46erb''
changing link_to_remote by link_to the partial renders fine, but
that''s not what I want. What''s the problem using
link_to_remote in
this context?, Which is the missing object?, if @project was nil the
error would be at line 2, but it isn''t.
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