Flowdock
remote_function(options) public

Returns the JavaScript needed for a remote function. Takes the same arguments as link_to_remote.

Example: 

  <select id="options" onchange="<%= remote_function(:update => "options",
      :url => { :action => :update_options }) %>">
    <option value="0">Hello</option>
    <option value="1">World</option>
  </select>
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April 16, 2009 - (>= v2.0.0)
2 thanks

Example

This function can be used to pass the ID of selected item, for example:

# with select or collection_select helpers:
{ :onchange => remote_function(:url => { :action => 'do_smth' }, :with => "'id=' + $('the_id').value") }

# and grab ID in controller action as usually: 
YourModel.find(params[:id])
August 13, 2009
2 thanks

With multiple parameters

Example

remote_function(
   :url => some_remote_function_path, 
   :with => "'key1='+$('elem_id').value +'&key2='+$('elem_id').value+ '&this_elem_value='+value"
)