views/handlers/views_handler_argument_null.inc

<?php
// $Id$
/**
 * Argument handler that ignores the argument.
 */
class views_handler_argument_null extends views_handler_argument {
  function option_definition() {
    $options = parent::option_definition();
    $options['must_not_be'] = array('default' => FALSE);
    return $options;
  }

  /**
   * Override options_form() so that only the relevant options
   * are displayed to the user.
   */
  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);
    $form['must_not_be'] = array(
      '#type' => 'checkbox',
      '#title' => t('Fail basic validation if any argument is given'),
      '#default_value' => !empty($this->options['must_not_be']),
      '#description' => t('By checking this field, you can use this to make sure views with more arguments than necessary fail validation.'),
    );

    unset($form['wildcard']);
    unset($form['wildcard_substitution']);
  }

  /**
   * Override default_actions() to remove actions that don't
   * make sense for a null argument.
   */
  function default_actions($which = NULL) {
    if ($which) {
      if (in_array($which, array('ignore', 'not found', 'empty', 'default'))) {
        return parent::default_actions($which);
      }
      return;
    }
    $actions = parent::default_actions();
    unset($actions['summary asc']);
    unset($actions['summary desc']);
    return $actions;
  }

  function validate_argument_basic($arg) {
    if (!empty($this->options['must_not_be'])) {
      return !isset($arg);
    }

    return parent::validate_argument_basic($arg);
  }

  /**
   * Override the behavior of query() to prevent the query
   * from being changed in any way.
   */
  function query() {}
}
1	<?php
2	// $Id$
3	/**
4	* Argument handler that ignores the argument.
5	*/
6	class views_handler_argument_null extends views_handler_argument {
7	function option_definition() {
8	$options = parent::option_definition();
9	$options['must_not_be'] = array('default' => FALSE);
10	return $options;
11	}
12
13	/**
14	* Override options_form() so that only the relevant options
15	* are displayed to the user.
16	*/
17	function options_form(&$form, &$form_state) {
18	parent::options_form($form, $form_state);
19	$form['must_not_be'] = array(
20	'#type' => 'checkbox',
21	'#title' => t('Fail basic validation if any argument is given'),
22	'#default_value' => !empty($this->options['must_not_be']),
23	'#description' => t('By checking this field, you can use this to make sure views with more arguments than necessary fail validation.'),
24	);
25
26	unset($form['wildcard']);
27	unset($form['wildcard_substitution']);
28	}
29
30	/**
31	* Override default_actions() to remove actions that don't
32	* make sense for a null argument.
33	*/
34	function default_actions($which = NULL) {
35	if ($which) {
36	if (in_array($which, array('ignore', 'not found', 'empty', 'default'))) {
37	return parent::default_actions($which);
38	}
39	return;
40	}
41	$actions = parent::default_actions();
42	unset($actions['summary asc']);
43	unset($actions['summary desc']);
44	return $actions;
45	}
46
47	function validate_argument_basic($arg) {
48	if (!empty($this->options['must_not_be'])) {
49	return !isset($arg);
50	}
51
52	return parent::validate_argument_basic($arg);
53	}
54
55	/**
56	* Override the behavior of query() to prevent the query
57	* from being changed in any way.
58	*/
59	function query() {}
60	}