RemanentForm

new RemanentForm(url, slug, index, save_callback, load_classback)

Description:

• Defines a remamence mechanism for a HTML form.

  • This mechanism allows a HTML form data to be remament, i.e., saved and reloaded, using the construct:

    <script type='text/javascript' src='.../aideweb.js'></script>
    <script>var remanentForm = new RemanentForm("$url", "$slug", "$index", save_callback, load_callback);</script> 
    <!--- where $slug, $index are user choosen names, $url is the persistant data service url -->
    <form id='$slug'>
      <input name='$index' type='text' required/> 
        <a onclick='remanentForm.load("$slug")'>Load the data</a>
      <!--- other form input --->
      <input type='submit'>Save the data</input>
    </form>
  

  • On submit, the form data is stored in a $slug-$index.value JSON file via the persistant data service.
  • When remanentFormLoad is called, the data, if predefined, is loaded.
  • The form data can also be preloaded by providing the values in the url query.
  • Here we do NOT want the input data to be treated by a action='' attribute since it is managed via this mechanism. Remark:
  • The present mechanism is designed for any textual (e.g., 'text'), 'radio', and 'checkbox' input type, only.

Parameters:

Name	Type	Description
url	string	The persistant data service URL.
slug	string	The form ID, also used as the form JSON file prefix.
index	string	The form 'index' input name (e.g., user email), used as unique identifier of the form data.
save_callback	callback	Callback function called when the data is saved. Runs the callback() function after the value is saved.
load_classback	callback	Callback function called when the data is loaded. Runs the callback(value: object) function with the loaded value.