views_handler_field_file_extension.inc

<?php


/**
 * @file
 * Definition of views_handler_field_file_extension.
 */

/**
 * Returns a pure file extension of the file, for example 'module'.
 *
 * @ingroup views_field_handlers
 */
class views_handler_field_file_extension extends views_handler_field {
    
    /**
     * {@inheritdoc}
     */
    public function option_definition() {
        $options = parent::option_definition();
        $options['extension_detect_tar'] = array(
            'default' => FALSE,
            'bool' => TRUE,
        );
        return $options;
    }
    
    /**
     * {@inheritdoc}
     */
    public function options_form(&$form, &$form_state) {
        parent::options_form($form, $form_state);
        $form['extension_detect_tar'] = array(
            '#type' => 'checkbox',
            '#title' => t('Detect if tar is part of the extension'),
            '#description' => t("See if the previous extension is '.tar' and if so, add that, so we see 'tar.gz' or 'tar.bz2' instead of just 'gz'."),
            '#default_value' => $this->options['extension_detect_tar'],
        );
    }
    
    /**
     * {@inheritdoc}
     */
    public function render($values) {
        $value = $this->get_value($values);
        if (!$this->options['extension_detect_tar']) {
            if (preg_match('/\\.([^\\.]+)$/', $value, $match)) {
                return $this->sanitize_value($match[1]);
            }
        }
        else {
            $file_parts = explode('.', basename($value));
            // If there is an extension.
            if (count($file_parts) > 1) {
                $extension = array_pop($file_parts);
                $last_part_in_name = array_pop($file_parts);
                if ($last_part_in_name === 'tar') {
                    $extension = 'tar.' . $extension;
                }
                return $this->sanitize_value($extension);
            }
        }
    }

}