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06-29-2009, 01:15 PM

[eluser]TheFuzzy0ne[/eluser]
Hi everyone. I've been fighting with the form validation library for most of today. I've been trying to purify my HTML after calling a custom validation callback. In my mind, it should work, but in actuality, it doesn't. I've designed a simple test to illustrate what I'm talking about:

./system/application/controllers/test_form_validation

Code:
&lt;?php

class Test_form_validation extends Controller

{

    function index()

    {

        // Load the form validation library.

        $this->load->library('form_validation');

        // Set the rules.

        $this->form_validation->set_rules('input', '', 'ltrim|callback__my_callback|rtrim');

        // Run validation.

        $this->form_validation->run();

        // Output the page.

        $this->output->set_output($this->get_view(TRUE));

    }

    function _my_callback()

    {

        // We'll just return TRUE so the test passes.

        return TRUE;

    }

    function get_view()

    {

        return <<<EOT

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" 

    "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

&lt;html&gt;

    &lt;head&gt;

        &lt;title&gt;Form validation test&lt;/title&gt;

        &lt;meta http-equiv="content-type" content="text/html; charset=UTF-8" /&gt;

    &lt;/head&gt;

    &lt;body&gt;

        <div>

            <code>

                content: "{$this->input->post('input')}"

            </code>

        </div>

        &lt;form action="" method="post"&gt;

            <div>

                <label>Input:

                    &lt;input type="text" name="input" value=" some text " /&gt;

                </label>

            </div>

            <div>

                &lt;input type="submit" name="submit" value="Submit" /&gt;

            </div>

        &lt;/form&gt;

    &lt;/body&gt;

&lt;/html&gt;

EOT;

    }

}

In the case of the above, rtrim is never called. This is fixed if I make the field required, but this isn't a required field. Is this a bug, or am I missing something totally obvious here?