Mercurial > defr > drupal > views_calc

comparison views_calc_field_handler.inc @ 0:0651c02e6ed7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
views_calc 1.3
author Franck Deroche <franck@defr.org>
date Wed, 05 Aug 2009 18:20:29 +0200
parents
children
comparison
equal deleted inserted replaced
-1:000000000000 0:0651c02e6ed7
1 <?php
2 // $Id: views_calc_field_handler.inc,v 1.3 2009/04/21 12:15:28 karens Exp $
3 /**
4 * @file
5 * Copied from the basic 'node' field handler.
6 */
7
8 /**
9 * Field handler to provide simple renderer that allows linking to a node.
10 */
11 class views_calc_field_handler extends views_handler_field {
12 /**
13 * Constructor to provide additional field to add.
14 */
15 function construct() {
16 parent::construct();
17 $this->additional_fields['nid'] = 'nid';
18 }
19
20 function option_definition() {
21 $options = parent::option_definition();
22 $options['link_to_node'] = array('default' => FALSE);
23 return $options;
24 }
25
26 /**
27 * Provide link to node option
28 */
29 function options_form(&$form, &$form_state) {
30 parent::options_form($form, $form_state);
31 $form['link_to_node'] = array(
32 '#title' => t('Link this field to its node'),
33 '#type' => 'checkbox',
34 '#default_value' => !empty($this->options['link_to_node']),
35 );
36 }
37
38 /**
39 * Render whatever the data is as a link to the node.
40 *
41 * Data should be made XSS safe prior to calling this function.
42 */
43 function render_link($data, $values) {
44 if (!empty($this->options['link_to_node'])) {
45 return l($data, "node/" . $values->{$this->aliases['nid']}, array('html' => TRUE));
46 }
47 else {
48 return $data;
49 }
50 }
51
52 /**
53 * Find the right calculation and add it to the query as
54 * an aliased field.
55 */
56 function query() {
57 $results = _views_calc_fields();
58 while ($calc_field = db_fetch_array($results)) {
59 if ($this->definition['cid'] == $calc_field['cid']) {
60 foreach (explode(',', $calc_field['tablelist']) as $table) {
61 $this->view->query->add_table($table);
62 }
63 $this->view->query->add_field(NULL, "({$calc_field['calc']})", "cid". $calc_field['cid']);
64 return;
65 }
66 }
67 }
68
69 function pre_query() {
70 $this->field_alias = "cid{$this->definition['cid']}";
71 parent::pre_query();
72 }
73
74 /**
75 * Use the requested format function to render the raw alias value.
76 */
77 function render($values) {
78 $field_alias = "cid{$this->definition['cid']}";
79
80 $value = $values->$field_alias;
81 $formats = _views_calc_format_options();
82 $format = $formats[$this->definition['format']];
83 $tmp = explode(':', $format);
84 $function = trim($tmp[0]);
85 $vars = count($tmp) == 2 ? $tmp[1] : '';
86 if ($function == 'custom') {
87 $tmp = explode(':', $this->definition['custom']);
88 $function = trim($tmp[0]);
89 $vars = count($tmp) == 2 ? $tmp[1] : '';
90 }
91 if (empty($function) || $function == 'none') {
92 $function = 'check_plain';
93 }
94 $raw = $function($value, $vars);
95
96 // This needs to be set for the $this->render_link() to work. It would
97 // have been set in the query, if we hadn't bypassed the normal query.
98 // TODO there may be a better way to do this.
99 $this->aliases['nid'] = 'nid';
100
101 return $this->render_link($raw, $values);
102 }
103 }