'template is missing' when trying to use render_to_string in controller#action

Is your partial .erb or .haml? It's working fine for me with a basic erb partial. I'm wondering if there's something more specific about this.

hi, thx for looking into this.

this is the form that triggers the submit. Hope this can provide some insight.

<form method="get" data-type="json" data-remote="true" action="/products/search" accept-charset="UTF-8"><div style="margin: 0pt; padding: 0pt; display: inline;"><input type="hidden" value="✓" name="utf8"></div>   <label for="Search">Search</label>
    <input type="text" name="keyword" id="keyword">
</form>

http://groups.google.com/group/rubyonrails-core/browse_thread/threa...

it looks to be related to :formats, a request for 'json' from browser yields:
Missing partial products/search/results with {:handlers=>[:erb, :rjs, :builder, :rhtml, :rxml], :formats=>[:json, :js, :"/"]

from the functional test,
get :search, :keyword => 'abcdef', :format => 'js' would work as :formats=>[:js, :html]

This stackoverflow entry outlines the same issue: http://stackoverflow.com/questions/2755337/how-to-render-partial-js...

I also am seeing this error with Rails 3.0.1 but curiously not in every browser.

def choose
    practitioners = Service.find(params[:id]).practitioners
    @appointment = Appointment.new
    render :json => {
      :html => render_to_string(
        :partial => 'static/practitioner_fields', 
        :locals => {:practitioners => practitioners, :appointment => @appointment}
      )
    }
end

I am posting to the "/choose" action via ajax and trying to render a partial (named _practitioner_fields.html.erb) JSON back and update HTML. Typically this method works in every browser. The above works in FireFox but not in Chrome, IE etc, where I get the following error:

ActionView::MissingTemplate (Missing partial static/practitioner_fields with {:handlers=>[:rjs, :rhtml, :builder, :rxml, :erb], :locale=>[:en, :en], :formats=>[:json, :js, :"/"]} in view paths "/app/views"):
app/controllers/static_controller.rb:17:in choose'

The partial contains html thus needs to be the html type.

Interesting if I change the name of my partial to _practitioner_fields.rhtml, there is no error in any browser and the ajax returns the correct response and updates the DOM