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<?php
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// $Id: recent_changes.module,v 1.4 2007/03/07 03:20:03 roetzi Exp $
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/**
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* @file
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* List of recent changes over all node revisions and comments
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*/
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/**
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* Implementation of hook_help().
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*/
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function recent_changes_help($section) {
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switch ($section) {
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case 'admin/help#recent_changes':
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$output = '<p>'.t('The recent changes module offers a page which shows all recent changes on nodes. The page can be viewed by anyone with the <em>view revisions</em> permission. If you have the <em>diff</em> module installed, a link to the diff-view will be offered in the table.').'</p>';
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return $output;
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break;
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}
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}
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/**
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* Implementation of hook_menu().
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*/
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function recent_changes_menu($may_cache) {
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$items = array();
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if ($may_cache) {
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$items[] = array(
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'title' => t('Recent changes'),
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'path' => 'recent_changes',
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'callback' => 'recent_changes_view',
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'access' => user_access('view revisions'),
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'type' => MENU_NORMAL_ITEM
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);
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}
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return $items;
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}
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/**
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* Menu callback which displays a list of recent changes.
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*/
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function recent_changes_view() {
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// Print feed if requested or display normal page otherwise
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if (arg(1) == 'feed') {
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return recent_changes_feed(arg(2));
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}
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else {
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return recent_changes_page();
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}
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}
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/**
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* Page display of recent changes.
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*/
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function recent_changes_page() {
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$output = '';
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// Add stylesheet for page.
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drupal_add_css(drupal_get_path('module', 'recent_changes').'/recent_changes.css');
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// Show filter if enabled
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if (recent_changes_show_filter()) {
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$output .= drupal_get_form('recent_changes_filter_form');
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}
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if ($_REQUEST['op'] == t('Filter')) {
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// Use submitted values if filter form was used.
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$show_comments = check_plain($_REQUEST['recent_changes_show_comments']);
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$node_type = check_plain($_REQUEST['recent_changes_show_node_type']);
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}
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else {
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// Default values
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$show_comments = recent_changes_show_comments();
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$node_type = '';
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}
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// Add feed
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if ($node_type) {
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// Filter by node type is active
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drupal_add_feed(url('recent_changes/feed/' . $node_type, null, null, true), t('recent changes of !site filtered by node type !node_type', array('!site' => variable_get('site_name', 'drupal'), '!node_type' => $node_type)));
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}
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else {
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// No filtering
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drupal_add_feed(url('recent_changes/feed', null, null, true), t('recent changes of !site', array('!site' => variable_get('site_name', 'drupal'))));
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}
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// Header for recent changes table.
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$header = array(
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'', // operations
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'', // time
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t('Type'),
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t('Title'),
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t('User'),
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t('Log'),
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);
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$rows = array();
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// Build SQL query depending on node type filter and comments filter.
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// Query to get all revisions of the selected node types
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$revisions_query = recent_changes_revisions_query($node_type);
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if (module_exists('comment') && $show_comments) {
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// Query to get all comments of the selected node types
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$comments_query = recent_changes_comments_query($node_type);
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// Final query as a combination of node revisions and comments
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$sql = "($revisions_query) UNION ALL ($comments_query) ORDER BY timestamp DESC";
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if ($node_type) {
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// Number of total nodes and comments if a specific node type is selected
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$count_sql = "SELECT (SELECT COUNT(*) FROM {node_revisions} r JOIN {node} n ON r.nid = n.nid WHERE n.type = '" . check_plain($node_type) . "') + (SELECT COUNT(*) FROM {comments} c LEFT JOIN {node} n ON c.nid = n.nid WHERE n.type = '" . check_plain($node_type) . "')";
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}
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else {
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// Number of total nodes and comments if all node types are shown
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$count_sql = "SELECT (SELECT COUNT(*) FROM {node_revisions}) + (SELECT COUNT(*) FROM {comments})";
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}
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// Check MySQL version
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$version = db_version();
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if ($GLOBALS['db_type'] == 'mysql' && version_compare($version, '4.1.0') < 0) {
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// MySQL before 4.1.0 cannot execute the subqueries. Just ignore comments for total count.
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if ($node_type) {
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// Number of total node revisions if a specific node type is selected
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$count_sql = "SELECT COUNT(*) FROM {node_revisions} r JOIN {node} n ON r.nid = n.nid WHERE n.type = '" . check_plain($node_type) . "'";
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}
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else {
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// Number of total node revisions if all node types are shown
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$count_sql = "SELECT COUNT(*) FROM {node_revisions}";
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}
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}
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}
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else {
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// Query to select all node revisions
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$sql = "$revisions_query ORDER BY timestamp DESC";
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if ($node_type) {
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// Number of total node revisions if a specific node type is selected
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$count_sql = "SELECT COUNT(*) FROM {node_revisions} r JOIN {node} n ON r.nid = n.nid WHERE n.type = '" . check_plain($node_type) . "'";
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}
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else {
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// Number of total node revisions if all node types are shown
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$count_sql = "SELECT COUNT(*) FROM {node_revisions}";
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}
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}
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// SQL result provided by pager implementation
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$result = pager_query($sql, recent_changes_count_per_page(), 0, $count_sql);
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$day = -1;
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$has_revisions = array();
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// List all results
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while ($change = db_fetch_object($result)) {
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// Check if day of week changed and if yes output the new day.
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$current_day = format_date($change->timestamp, 'custom', 'z');
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if ($day != $current_day) {
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$day = $current_day;
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$rows[] = array(
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array(
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'data' => format_date($change->timestamp, 'custom', 'D, j F Y'),
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'colspan' => '6',
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'class' => 'date'
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)
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);
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}
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// Comments have a non-zero 'cid', node revisions a non-zero 'vid'. Both have a 'nid'
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$is_comment = ($change->cid != 0);
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if ($is_comment) {
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// Format the row if the change is a comment
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$rows[] = array(
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// Link to comment
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l('(comment)', "node/$change->nid", null, null, "comment-$change->cid"),
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// Time of submit
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format_date($change->timestamp, 'custom', 'H:i'),
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// Node type of comment's node
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$change->type,
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// Title of comment's node
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l($change->title, "node/$change->nid"),
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// User which submitted comment
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theme('username', $change),
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// Title of comment
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filter_xss($change->log),
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);
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} else {
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// Format the row if the change is a node revision
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// Check if that node has any revisions at all and cache the result.
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if (!isset($has_revisions[$change->nid])) {
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$has_revisions[$change->nid] = db_result(db_query('SELECT COUNT(*) FROM {node_revisions} WHERE nid=%d', $change->nid)) > 1;
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}
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// Get the version and title of the previous revision
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$old_node = db_fetch_object(db_query('SELECT vid, title FROM {node_revisions} WHERE nid=%d AND vid<%d ORDER BY vid DESC LIMIT 1', $change->nid, $change->vid));
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$operations = '';
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// Add a link to the diff between the current version and the one before that.
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if (module_exists('diff')) {
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if ($old_node->vid) {
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$operations .= l('(diff)', "node/$change->nid/revisions/view/$old_node->vid/$change->vid").' ';
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}
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else {
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$operations = '(diff) ';
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}
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}
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// Add a link to the revisions history of the node.
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if ($has_revisions[$change->nid]) {
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$operations .= l('(hist)', "node/$change->nid/revisions");
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}
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else {
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$operations .= '(hist)';
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}
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$special = '';
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if ($old_node->vid == 0) {
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// The node is new.
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$special = '<span class="change-flag">new</span> ';
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}
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elseif ($old_node->title != $change->title) {
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// The node title changed.
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$special = '<span class="change-flag">moved</span> ';
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}
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$rows[] = array(
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// Link to diff and history
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$operations,
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// Submit time
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format_date($change->timestamp, 'custom', 'H:i'),
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// Node type
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$change->type,
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// Title of node
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$special . l($change->title, "node/$change->nid"),
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// User which submitted node
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theme('username', $change),
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// Log message of revision
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filter_xss($change->log),
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);
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}
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}
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// Print table and pager
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$output .= theme('table', $header, $rows, array('class' => 'recent-changes'));
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$output .= theme('pager', NULL, recent_changes_count_per_page, 0);
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return $output;
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}
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/**
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* Form for input filter.
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*/
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function recent_changes_filter_form() {
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$form = array();
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$form['#attributes'] = array('class' => 'inline');
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// Enable/Disable comments in recent changes view
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if (module_exists('comment')) {
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$form['recent_changes_show_comments'] = array(
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'#type' => 'checkbox',
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'#title' => t('Show comments'),
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'#default_value' => isset($_REQUEST['form_id']) ? isset($_REQUEST['recent_changes_show_comments']) : recent_changes_show_comments(),
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);
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}
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// Filter node type of recent changes view
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$node_types = array('' => 'all node types');
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$node_types = array_merge($node_types, node_get_types('names'));
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$form['recent_changes_show_node_type'] = array(
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'#type' => 'select',
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'#default_value' => isset($_REQUEST['recent_changes_show_node_type']) ? $_REQUEST['recent_changes_show_node_type'] : '',
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'#options' => $node_types,
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);
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$form['submit'] = array(
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'#type' => 'button',
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'#value' => t('Filter')
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);
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return $form;
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}
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/**
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* RSS feed of recent changes.
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*/
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function recent_changes_feed($node_type = NULL) {
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global $base_url;
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// Query to get all revisions of the selected node types
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$revisions_query = recent_changes_revisions_query($node_type);
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if (module_exists('comment')) {
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// Query to get all comments of the selected node types
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$comments_query = recent_changes_comments_query($node_type);
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// Final query as a combination of node revisions and comments
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$sql = "($revisions_query) UNION ALL ($comments_query) ORDER BY timestamp DESC LIMIT %d";
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}
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else {
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$sql = "$revisions_query ORDER BY timestamp DESC LIMIT %d";
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}
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$result = db_query($sql, variable_get('feed_default_items', 10));
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// Type of RSS feed: 'title', 'teaser', 'full'
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$item_length = variable_get('feed_item_length', 'teaser');
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// Is node teaser displayed (only used if $item_length not 'title')
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$teaser = ($item_length == 'teaser') ? true : false;
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// RSS namespace used
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$namespaces = array('xmlns:dc="http://purl.org/dc/elements/1.1/"');
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// RSS text
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$items = '';
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while ($item = db_fetch_object($result)) {
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// Comments have a non-zero 'cid', node revisions a non-zero 'vid'. Both have a 'nid'
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$is_comment = ($item->cid != 0);
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if ($is_comment) {
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// Format comment for RSS: Comment title as item title, comment body as text
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$comment = db_fetch_object(db_query('SELECT * FROM {comments} WHERE cid = %d', $item->cid));
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// RSS Title: title of comment with comment mark
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$title = t('Comment') . ': ' . $comment->subject;
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// RSS Link: Direct link to comment
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| 306 |
$link = url("node/$comment->nid", null, "comment-$comment->cid", 1);
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// Node title comment belongs to (used in feed body)
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$node_title = l($item->title,"node/$item->nid", null, null, null, 1);
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// User which submitted comment (used in feed body)
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$username = ($comment->uid ? l($comment->name, "user/$comment->uid", null, null, null, 1) : $comment->name);
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// RSS body: has meta info about comment
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$item_text = '<p><em>' . t('Comment on !node_title from !user', array('!node_title' => $node_title, '!user' => $username)) . '</em></p><hr/>';
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if ($item_length != 'title') {
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// If not just titles are in RSS feeds, put the comment in RSS body
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$item_text .= check_markup($comment->comment, $comment->format);
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}
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// No extras here (like attachments or taxonomy)
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| 318 |
$extra = array();
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}
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else {
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// Format comment for RSS
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$node = node_load($item->nid, $item->vid);
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// Select the older revision if available. Set flag accordingly
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| 324 |
$old_entry = db_fetch_object(db_query('SELECT vid, timestamp FROM {node_revisions} WHERE nid = %d AND vid < %d ORDER BY vid DESC LIMIT 1', $item->nid, $item->vid));
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| 325 |
if ($old_entry->vid) {
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$old_node = node_load($node->nid, $old_entry->vid);
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| 327 |
if ($old_node->title != $node->title) {
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$flag = t('Moved');
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}
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| 330 |
else {
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| 331 |
$flag = t('Edited');
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| 332 |
}
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| 333 |
}
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else {
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| 335 |
$flag = t('New');
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| 336 |
}
|
| 337 |
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| 338 |
// RSS title
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| 339 |
$title = $flag . ' ' . $node->type . ': ' . $node->title;
|
| 340 |
// RSS link: link to node
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| 341 |
$link = url("node/$node->nid", null, null, 1);
|
| 342 |
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| 343 |
// RSS body
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| 344 |
$item_text = '';
|
| 345 |
if ($old_entry->vid && module_exists('diff')) {
|
| 346 |
// If diff module exists, put a diff in the RSS feed
|
| 347 |
$rows = array();
|
| 348 |
$header = array(
|
| 349 |
'',
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| 350 |
t('Revision of %date', array('%date' => format_date($old_entry->timestamp))),
|
| 351 |
'',
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| 352 |
t('Revision of %date', array('%date' => format_date($item->timestamp)))
|
| 353 |
);
|
| 354 |
$rows = _diff_body_rows($old_node, $node);
|
| 355 |
$item_text .= theme('table', $header, $rows, array('style' => 'width:100%'));
|
| 356 |
// Replace css classes from diff with actual style elements since we cannot reference
|
| 357 |
// a css file from the rss feed.
|
| 358 |
$patterns = array(
|
| 359 |
'/class=["\']diff-section-title["\']/',
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| 360 |
'/class=["\']diff-deletedline["\']/',
|
| 361 |
'/class=["\']diff-addedline["\']/',
|
| 362 |
'/class=["\']diff-context["\']/',
|
| 363 |
'/class=["\']diffchange["\']/',
|
| 364 |
);
|
| 365 |
$replacements = array(
|
| 366 |
'style="background-color: #f0f0ff;"',
|
| 367 |
'style="background-color: #ffa;width: 50%"',
|
| 368 |
'style="background-color: #afa;width: 50%"',
|
| 369 |
'style="background-color: #fafafa"',
|
| 370 |
'style="color: #f00;font-weight:bold"',
|
| 371 |
);
|
| 372 |
$item_text = preg_replace($patterns, $replacements, $item_text);
|
| 373 |
$item_text .= "<hr/>\n";
|
| 374 |
}
|
| 375 |
|
| 376 |
if ($item_length != 'title') {
|
| 377 |
// Load node to display in feed
|
| 378 |
if (node_hook($node, 'view')) {
|
| 379 |
$node = node_invoke($node, 'view', $teaser, false);
|
| 380 |
}
|
| 381 |
else {
|
| 382 |
$node = node_prepare($node, $teaser);
|
| 383 |
}
|
| 384 |
// If only teaser is shown, add 'read more' link to feed
|
| 385 |
if ($teaser) {
|
| 386 |
$item_text .= $node->teaser;
|
| 387 |
if ($node->readmore) {
|
| 388 |
$item_text .= '<p>'. l(t('read more'), 'node/'. $node->nid, null, null, null, true) .'</p>';
|
| 389 |
}
|
| 390 |
}
|
| 391 |
else {
|
| 392 |
$item_text .= $node->body;
|
| 393 |
}
|
| 394 |
}
|
| 395 |
|
| 396 |
// RSS extras: load extras from node modules
|
| 397 |
$extra = node_invoke_nodeapi($node, 'rss item');
|
| 398 |
}
|
| 399 |
// Put in normal extra information
|
| 400 |
$extra = array_merge($extra,
|
| 401 |
array(
|
| 402 |
array('key' => 'pubDate', 'value' => date('r', $item->timestamp)),
|
| 403 |
array('key' => 'dc:creator', 'value' => $item->name),
|
| 404 |
array('key' => 'guid', 'value' => $item->nid .' at '. $base_url . ($is_comment ? ' comment '.$item->cid : ' revision '.$item->vid), 'attributes' => array('isPermaLink' => 'false'))
|
| 405 |
)
|
| 406 |
);
|
| 407 |
foreach ($extra as $element) {
|
| 408 |
if ($element['namespace']) {
|
| 409 |
$namespaces = array_merge($namespaces, $element['namespace']);
|
| 410 |
}
|
| 411 |
}
|
| 412 |
// Add rss feed item to output
|
| 413 |
$items .= format_rss_item($title, $link, $item_text, $extra);
|
| 414 |
}
|
| 415 |
// RSS channel information
|
| 416 |
$channel = array(
|
| 417 |
'version' => '2.0',
|
| 418 |
'link' => $base_url,
|
| 419 |
'description' => t('Recent changes of nodes and comments on %site', array('%site' => variable_get('site_name', 'drupal'))),
|
| 420 |
'language' => $GLOBALS['locale'],
|
| 421 |
);
|
| 422 |
if ($node_type) {
|
| 423 |
$channel['title'] = variable_get('site_name', 'drupal') .' - ' . t('Recent changes filtered by !node_type', array('!node_type' => $node_type));
|
| 424 |
}
|
| 425 |
else {
|
| 426 |
$channel['title'] = variable_get('site_name', 'drupal') .' - ' . t('Recent changes');
|
| 427 |
}
|
| 428 |
// Construct actual RSS feed text
|
| 429 |
$output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
|
| 430 |
$output .= "<rss version=\"". $channel["version"] . "\" xml:base=\"". $base_url ."\" ". implode(' ', $namespaces) .">\n";
|
| 431 |
$output .= format_rss_channel($channel['title'], $channel['link'], $channel['description'], $items, $channel['language']);
|
| 432 |
$output .= "</rss>\n";
|
| 433 |
|
| 434 |
// Set MIME type in HTML header
|
| 435 |
drupal_set_header('Content-Type: application/rss+xml; charset=utf-8');
|
| 436 |
// Print feed text
|
| 437 |
print $output;
|
| 438 |
}
|
| 439 |
|
| 440 |
/*
|
| 441 |
* Settings
|
| 442 |
*/
|
| 443 |
|
| 444 |
/**
|
| 445 |
* Number of entries per page.
|
| 446 |
*/
|
| 447 |
function recent_changes_count_per_page($value = NULL) {
|
| 448 |
if (is_null($value)) {
|
| 449 |
return variable_get('recent_changes_entries_per_page', 50);
|
| 450 |
}
|
| 451 |
variable_set('recent_changes_entries_per_page', $value);
|
| 452 |
}
|
| 453 |
|
| 454 |
/**
|
| 455 |
* Is the filter form shown on the recent changes page?
|
| 456 |
*/
|
| 457 |
function recent_changes_show_filter($value = NULL) {
|
| 458 |
if (is_null($value)) {
|
| 459 |
return variable_get('recent_changes_show_filter', true);
|
| 460 |
}
|
| 461 |
variable_set('recent_changes_show_filter', $value);
|
| 462 |
}
|
| 463 |
|
| 464 |
/**
|
| 465 |
* Are comments shown by default?
|
| 466 |
*/
|
| 467 |
function recent_changes_show_comments($value = NULL) {
|
| 468 |
if (is_null($value)) {
|
| 469 |
return variable_get('recent_changes_show_comments', true);
|
| 470 |
}
|
| 471 |
variable_set('recent_changes_show_comments', $value);
|
| 472 |
}
|
| 473 |
|
| 474 |
|
| 475 |
/**
|
| 476 |
* SQL query for all node revisions.
|
| 477 |
*/
|
| 478 |
function recent_changes_revisions_query($node_type = NULL) {
|
| 479 |
$result = 'SELECT n.type, r.nid, r.vid, 0 AS cid, r.title, r.timestamp, r.log, r.uid, u.name FROM {node_revisions} r LEFT JOIN {node} n ON r.nid = n.nid LEFT JOIN {users} u ON r.uid = u.uid';
|
| 480 |
// Change for query if access right restrictions apply
|
| 481 |
list($join, $where, $distinct) = _db_rewrite_sql($result, 'r', 'nid');
|
| 482 |
if ($node_type) {
|
| 483 |
// Filter on node type
|
| 484 |
$where .= " AND n.type = '" . check_plain($node_type) . "'";
|
| 485 |
}
|
| 486 |
if ($join) {
|
| 487 |
$result .= ' ' . $join;
|
| 488 |
}
|
| 489 |
if ($where) {
|
| 490 |
$result .= ' WHERE ' . $where;
|
| 491 |
}
|
| 492 |
return $result;
|
| 493 |
}
|
| 494 |
|
| 495 |
/**
|
| 496 |
* SQL query for all comments.
|
| 497 |
*/
|
| 498 |
function recent_changes_comments_query($node_type = NULL) {
|
| 499 |
$result = 'SELECT n.type, c.nid, 0 AS vid, c.cid, n.title, c.timestamp, c.subject AS log, c.uid, c.name FROM {comments} c LEFT JOIN {node} n ON c.nid = n.nid';
|
| 500 |
list($join, $where, $distinct) = _db_rewrite_sql($result, 'c', 'nid');
|
| 501 |
if ($node_type) {
|
| 502 |
$where .= " AND n.type = '" . check_plain($node_type) . "'";
|
| 503 |
}
|
| 504 |
if ($join) {
|
| 505 |
$result .= ' ' . $join;
|
| 506 |
}
|
| 507 |
if ($where) {
|
| 508 |
$result .= ' WHERE ' . $where;
|
| 509 |
}
|
| 510 |
return $result;
|
| 511 |
}
|
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