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<?php
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// $Id: series.module,v 1.1.2.2 2004/09/18 13:42:39 goba Exp $
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// Integrate with the Drupal module selection page properly
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function series_help($section){
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if ($section == 'admin/modules#description') {
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return t("Allows you to group nodes into series (using taxonomy).");
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}
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}
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// Let admin select a taxonomy to hold series information
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function series_settings() {
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$vocs = array();
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foreach (taxonomy_get_vocabularies() as $vid => $voc) {
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$vocs[$vid] = $voc->name;
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}
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if (count($vocs)) {
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$form = form_select(t("Series vocabulary"), "series_nav_vocabulary", variable_get("series_nav_vocabulary", ""), $vocs, t("The vocabulary used to contain series groups."));
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}
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else {
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$form = form_item(t("Series vocabulary"), t("At least one <a href=\"%url\">vocabulary</a> should be set up, so it can contain the list of series available on the website.", array("%url" => url("admin/taxonomy"))));
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}
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return $form;
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}
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// Nodeapi hook to add node id for series filter (requires patched core!)
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function series_nodeapi(&$node, $op, $a3, $a4) {
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// Vocabulary needs to be set for this to work
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if (($vid = variable_get("series_nav_vocabulary", "")) && ($op == 'view')) {
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_series_filter($node, $a3, $a4, $vid);
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}
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}
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// Add series block, if we are filtering a node and the node is in a serial
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function _series_filter(&$node, $main, $page, $vid) {
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// Filter the value of this property
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$property = ($main ? 'teaser' : 'body');
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// Try to find the place where the series block should go
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if (preg_match("!\\[series-info:(left|right|center)\\]!", $node->$property, $match)) {
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// Find out the one serial this node is in
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$terms = array_keys(taxonomy_node_get_terms_by_vocabulary($node->nid, $vid));
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if (count($terms) == 1) {
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$nodelist = _series_nodelist($terms[0]);
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if (count($nodelist) > 1) {
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$nodelinks = array();
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foreach ($nodelist as $node_in_series) {
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if ($node_in_series->nid == $node->nid) {
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$nodelinks[] = $node_in_series->title;
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}
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else {
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$nodelinks[] = l($node_in_series->title, 'node/' . $node_in_series->nid);
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}
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}
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$node->$property = str_replace($match[0], theme("series_box", $nodelinks, $match[1]), $node->$property);
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return;
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}
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}
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// Remove series reference, since no matching series have been found
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$node->$property = str_replace($match[0], "", $node->$property);
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return;
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}
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}
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function theme_series_box($nodelinks, $align) {
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return "<div class=\"series-box series-$align\">" . theme("item_list", $nodelinks, t('Also published in this series')) . "</div>";
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}
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// Get the nodes from the same serial
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function _series_nodelist($tid) {
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$nodelist = array();
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if ($result = db_query("SELECT n.nid, n.title FROM {term_node} t INNER JOIN {node} n ON t.nid = n.nid WHERE n.status = 1 AND t.tid = %d ORDER BY n.created", $tid)) {
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while ($node = db_fetch_object($result)) {
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$nodelist[] = $node;
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}
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}
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return $nodelist;
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}
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?>
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