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<?php
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/**
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* @file
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* Holds functions relating to the Mark Forum/All Read functionality.
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*/
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/**
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* Either fill a $links array or return a string version of the link to mark read.
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*/
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function advanced_forum_get_mark_read_link($tid = 0, &$links = array()) {
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if (advanced_forum_markasread_access() && !in_array($tid, variable_get('forum_containers', array()))) {
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if ($tid) {
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$links['mark-read']['title'] = t('Mark all topics read');
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$links['mark-read']['href'] = "forum/markasread/$tid";
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return l(t('Mark all topics read') . '<span class="image-replace"></span>', "forum/markasread/$tid", array('html' => TRUE));
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}
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else {
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$links['mark-read']['title'] = t('Mark all forums read');
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$links['mark-read']['href'] = "forum/markasread";
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return l(t('Mark all forums read') . '<span class="image-replace"></span>', "forum/markasread", array('html' => TRUE));
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}
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}
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}
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/**
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* Marks all posts in forums or in a given forum as read by the current user.
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*/
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function advanced_forum_markasread($tid = NULL) {
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global $user;
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$vid = variable_get('forum_nav_vocabulary', 0);
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// Don't bother trying to mark things read for anonymous users.
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if (empty($user->uid)) {
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return;
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}
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// Delete all entries in the history table for the current $uid and
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// optionally a forum term id.
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// Subquery to find nids to delete from history table.
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$query_node = db_select('node', 'n');
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$query_node->join('forum', 'f', 'n.vid = f.vid');
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$query_node->join('taxonomy_term_data', 't', 'f.tid = t.tid');
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$query_node->join('node_comment_statistics', 'ncs', 'n.nid = ncs.nid');
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if (isset($tid)) {
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$query_node->condition('f.tid', $tid);
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}
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$query_node->condition('t.vid', $vid);
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$query_node->addField('n', 'nid');
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// Select query objects are one-shot, so clone for INSERT below.
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$query_history_insert = clone($query_node);
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// Delete values based upon sub-query.
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$query = db_delete('history')
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->condition('uid', $user->uid)
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->condition('nid', $query_node, 'IN')
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->execute();
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// Now insert the nids into the history table.
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$query_history_insert->addExpression(':uid', 'uid', array(':uid' => $user->uid));
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$query_history_insert->addExpression(':time', 'timestamp', array(':time' => REQUEST_TIME));
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db_insert('history')
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->fields(array('nid', 'uid', 'timestamp'))
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->from($query_history_insert)
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->execute();
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drupal_goto(empty($tid) ? 'forum' : 'forum/' . $tid);
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}
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/**
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* Access callback for menus and link display.
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*
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* @TODO: D7 check if needed
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*
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* This separate function is needed because the Drupal 6 menu system doesn't
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* run hook_menu() every time and the logged-in status of the user can get
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* cached and re-used for other users.
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*/
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function advanced_forum_markasread_access() {
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global $user;
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return user_access('access content') && $user->uid;
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}
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