1<?php
2
3/**
4 * @file
5 * User page callbacks for tracker.module.
6 */
7
8
9/**
10 * Page callback: prints a listing of active nodes on the site.
11 *
12 * Queries the database for info, adds RDFa info if applicable, and generates
13 * the render array that will be used to render the page.
14 */
15function tracker_page($account = NULL, $set_title = FALSE) {
16  if ($account) {
17    $query = db_select('tracker_user', 't')->extend('PagerDefault');
18    $query->condition('t.uid', $account->uid);
19
20    if ($set_title) {
21      // When viewed from user/%user/track, display the name of the user
22      // as page title -- the tab title remains Track so this needs to be done
23      // here and not in the menu definition.
24      drupal_set_title(format_username($account));
25    }
26  }
27  else {
28    $query = db_select('tracker_node', 't', array('target' => 'slave'))->extend('PagerDefault');
29  }
30
31  // This array acts as a placeholder for the data selected later
32  // while keeping the correct order.
33  $nodes = $query
34    ->addTag('node_access')
35    ->fields('t', array('nid', 'changed'))
36    ->condition('t.published', 1)
37    ->orderBy('t.changed', 'DESC')
38    ->limit(25)
39    ->execute()
40    ->fetchAllAssoc('nid');
41
42  $rows = array();
43  if (!empty($nodes)) {
44    // Now, get the data and put into the placeholder array.
45    $result = db_query('SELECT n.nid, n.title, n.type, n.changed, n.uid, u.name, l.comment_count FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid INNER JOIN {users} u ON n.uid = u.uid WHERE n.nid IN (:nids)', array(':nids' => array_keys($nodes)), array('target' => 'slave'));
46    foreach ($result as $node) {
47      $node->last_activity = $nodes[$node->nid]->changed;
48      $nodes[$node->nid] = $node;
49    }
50
51    // Display the data.
52    foreach ($nodes as $node) {
53      // Determine the number of comments.
54      $comments = 0;
55      if ($node->comment_count) {
56        $comments = $node->comment_count;
57
58        if ($new = comment_num_new($node->nid)) {
59          $comments .= '<br />';
60          $comments .= l(format_plural($new, '1 new', '@count new'), 'node/' . $node->nid, array('fragment' => 'new'));
61        }
62      }
63
64      $row = array(
65        'type' => check_plain(node_type_get_name($node->type)),
66        'title' => array('data' => l($node->title, 'node/' . $node->nid) . ' ' . theme('mark', array('type' => node_mark($node->nid, $node->changed)))),
67        'author' => array('data' => theme('username', array('account' => $node))),
68        'replies' => array('class' => array('replies'), 'data' => $comments),
69        'last updated' => array('data' => t('!time ago', array('!time' => format_interval(REQUEST_TIME - $node->last_activity)))),
70      );
71
72      // Adds extra RDFa markup to the $row array if the RDF module is enabled.
73      if (function_exists('rdf_mapping_load')) {
74        // Each node is not loaded for performance reasons, as a result we need
75        // to retrieve the RDF mapping for each node type.
76        $mapping = rdf_mapping_load('node', $node->type);
77        // Adds RDFa markup to the title of the node. Because the RDFa markup is
78        // added to the td tag which might contain HTML code, we specify an
79        // empty datatype to ensure the value of the title read by the RDFa
80        // parsers is a plain literal.
81        $row['title'] += rdf_rdfa_attributes($mapping['title']) + array('datatype' => '');
82        // Annotates the td tag containing the author of the node.
83        $row['author'] += rdf_rdfa_attributes($mapping['uid']);
84        // Annotates the td tag containing the number of replies. We add the
85        // content attribute to ensure that only the comment count is used as
86        // the value for 'num_replies'. Otherwise, other text such as a link
87        // to the number of new comments could be included in the 'num_replies'
88        // value.
89        $row['replies'] += rdf_rdfa_attributes($mapping['comment_count']);
90        $row['replies'] += array('content' => $node->comment_count);
91        // If the node has no comments, we assume the node itself was modified
92        // and apply 'changed' in addition to 'last_activity'.  If there are
93        // comments present, we cannot infer whether the node itself was
94        // modified or a comment was posted, so we use only 'last_activity'.
95        $mapping_last_activity = rdf_rdfa_attributes($mapping['last_activity'], $node->last_activity);
96        if ($node->comment_count == 0) {
97          $mapping_changed = rdf_rdfa_attributes($mapping['changed'], $node->last_activity);
98          $mapping_last_activity['property'] = array_merge($mapping_last_activity['property'], $mapping_changed['property']);
99        }
100        $row['last updated'] += $mapping_last_activity;
101
102        // We need to add the about attribute on the tr tag to specify which
103        // node the RDFa annotations above apply to. We move the content of
104        // $row to a 'data' sub array so we can specify attributes for the row.
105        $row = array('data' => $row);
106        $row['about'] = url('node/' . $node->nid);
107      }
108      $rows[] = $row;
109    }
110  }
111
112  $page['tracker'] = array(
113    '#rows' => $rows,
114    '#header' => array(t('Type'), t('Title'), t('Author'), t('Replies'), t('Last updated')),
115    '#theme' => 'table',
116    '#empty' => t('No content available.'),
117    '#attached' => array(
118      'css' => array(drupal_get_path('module', 'tracker') . '/tracker.css' => array()),
119    ),
120  );
121  $page['pager'] = array(
122    '#theme' => 'pager',
123    '#weight' => 10,
124  );
125  $page['#sorted'] = TRUE;
126
127  return $page;
128}
129