title: get field values from query
body: <p>While using a front end form, could get values from a query?</p>
  
  <p>Something like this: <code>http://example.com/form?foo_name=bar</code>, so when you click on the link that will take you to the form, the field called <code>foo_name</code> will be fille by default with the value <code>bar</code>.</p>