where does render :partial html end up - ruby-on-rails

Question

I have a view with an ajax form:
<%= form_tag( {:action => 'some_action'}, {:remote => true}) do %>
...
<%= submit_tag "Submit" %>
<% end %>
Now, in the target action, I want to display a partial
def some_action
# some logic
render :partial => "some_partial"
end
The partial is just html. _some_partial.html.erb could be
<br>Hi, this is the partial</br>
When I submit the form, I see the html response packet is received in the browser (with firebug's net logs), but the html doesn't show up anywhere. Where should the html be? How to render a partial html view from an action?

Answer 1

you are rendering a partial but not specifying where to render it.
in rails 2 you could do it with:
def some_action
# some logic
render :update do |page|
page.replace_html 'some_div_id', :partial => 'some_partial'
end
end
but in rails 3, above code is no longer valid.
see Unobtrusive Javascript
create a file named some_action.js.erb and write the code in it:
// update div with id some_div_id
$("#some_div_id").html("<%= escape_javascript(render :partial => 'some_partial') %>");
in controller
def some_action
# some logic
respond_to do |format|
format.js
end
end

Answer 2

I figured out how to send and display html. From theReq, just add :remote => true, "data-type" => "html" to the form and then in the javascript of the page, capture the returned html on ajaxSuccess to display it:
$('form#whatever').on('ajaxSuccess', function (event, data, status, xhr) {
$('div#target').html(data);
}
)