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2 parents ef8005b + 8fdda79 commit c8cbff7c6b380321418f377130e5e25cf4a6f524 Phil Sturgeon committed Aug 9, 2011
Showing with 7 additions and 9 deletions.
  1. +1 −1 system/libraries/Form_validation.php
  2. +1 −0 user_guide/changelog.html
  3. +5 −8 user_guide/libraries/form_validation.html
@@ -1378,4 +1378,4 @@ public function encode_php_tags($str)
// END Form Validation Class
/* End of file Form_validation.php */
-/* Location: ./system/libraries/Form_validation.php */
+/* Location: ./system/libraries/Form_validation.php */
@@ -92,6 +92,7 @@ <h2>Version 2.0.3</h2>
<li class="reactor">Changed <kbd>$this->cart->insert()</kbd> in the <a href="libraries/cart.html">Cart Library</a> to return the Row ID if a single item was inserted successfully.</li>
<li class="reactor">Added <kbd>$this->load->get_var()</kbd> to the <a href="libraries/loader.html">Loader library</a> to retrieve global vars set with <kbd>$this->load->view()</kbd> and <kbd>$this->load->vars()</kbd>.</li>
<li>Changed <kbd>$this->db->having()</kbd> to insert quotes using escape() rather than escape_str().</li>
+ <li class="reactor">Added support to set an optional parameter in your callback rules of validation using the <a href="libraries/form_validation.html">Form Validation library</a>.</li>
</ul>
</li>
</ul>
@@ -508,11 +508,9 @@ <h2>Callbacks: Your own Validation Functions</h2>
<code>$this->form_validation->set_rules('username', 'Username', '<kbd>callback_username_check</kbd>');</code>
-
<p>Then add a new function called <dfn>username_check</dfn> to your controller. Here's how your controller should now look:</p>
-
-<textarea class="textarea" style="width:100%" cols="50" rows="44">&lt;?php
+<textarea class="textarea" style="width:100%" cols="50" rows="40">&lt;?php
class Form extends CI_Controller {
@@ -556,14 +554,13 @@ <h2>Callbacks: Your own Validation Functions</h2>
<p><dfn>Reload your form and submit it with the word "test" as the username. You can see that the form field data was passed to your
callback function for you to process.</dfn></p>
-<p><strong>To invoke a callback just put the function name in a rule, with "callback_" as the rule prefix.</strong></p>
+<p>To invoke a callback just put the function name in a rule, with "callback_" as the rule <strong>prefix</strong>. If you need
+to receive an extra parameter in your callback function, just add it normally after the function name between square brackets,
+as in: "callback_foo<strong>[bar]</strong>", then it will be passed as the second argument of your callback function.</p>
-<p>You can also process the form data that is passed to your callback and return it. If your callback returns anything other than a boolean TRUE/FALSE
+<p><strong>Note:</strong> You can also process the form data that is passed to your callback and return it. If your callback returns anything other than a boolean TRUE/FALSE
it is assumed that the data is your newly processed form data.</p>
-
-
-
<a name="settingerrors"></a>
<h2>Setting Error Messages</h2>

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