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<?php
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// $Id: feedaggregator_node.module,v 1.41 2007/01/01 23:52:09 budda Exp $
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/**
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* FeedAggregator Node
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* @description: Generates 1st class nodes from aggregator feed items.
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*
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* @author: Mike Carter <mike @ www.ixis.co.uk/contact>
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*/
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function feedaggregator_node_help($section){
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switch($section){
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case 'node/add#aggregator-item':
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return t('A news item.');
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case "admin/modules#description":
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return t('<strong>Feed Processor</strong>: Creates nodes from feed items');
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}
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}
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function feedaggregator_node_node_info() {
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return array('aggregator-item' => array('name' => t('aggregator item'), 'base' => 'feedaggregator_node'));
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}
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function feedaggregator_node_perm() {
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return array('edit aggregator items');
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}
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function feedaggregator_node_access($op, $node) {
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global $user;
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if ($op == 'create') {
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// Only users with permission to do so may create this node type.
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return user_access('administer news feeds');
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}
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// Users who create a node may edit or delete it later, assuming they have the
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// necessary permissions.
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if ($op == 'update' || $op == 'delete') {
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if (user_access('edit aggregator items') && ($user->uid == $node->uid)) {
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return TRUE;
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}
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}
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}
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/**
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* Implementation of hook_menu().
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*/
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function feedaggregator_node_menu($may_cache) {
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global $user;
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$items = array();
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if ($may_cache) {
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$items[] = array('path' => 'node/add/aggregator-item', 'title' => t('aggregator-item'),
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'access' => user_access('edit aggregator items'));
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}
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return $items;
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}
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function feedaggregator_node_form(&$node) {
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$form['title'] = array(
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'#type' => 'textfield',
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'#title' => t('Title'),
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'#required' => TRUE,
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'#default_value' => $node->title,
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'#weight' => -5,
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'#description' => t('A short descriptive title for the story.')
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);
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$form['body_filter']['body'] = array(
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'#type' => 'textarea',
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'#title' => t('Description'),
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'#default_value' => $node->body,
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'#rows' => '10',
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'#required' => FALSE
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);
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$form['body_filter']['filter'] = filter_form($node->format);
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$form['link'] = array(
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'#type' => 'textfield',
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'#title' => t('Link'),
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'#required' => TRUE,
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'#default_value' => $node->link,
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'#weight' => -4,
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'#description' => t('The fully-qualified URL to the complete story.')
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);
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return $form;
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}
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function feedaggregator_node_link($type, $node = 0, $teaser = FALSE) {
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$links = array();
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if ($type == 'node' && $node->type == 'aggregator-item') {
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if (!$teaser && variable_get('feedmanager_showfullstory', TRUE)) {
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// Make the full story url in to a clickable link when viewing the node
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$attributes['target'] = variable_get('feedmanager_target', 'default');
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if($rel = variable_get('feedmanager_rel', false)) $attributes['rel'] = $rel;
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$links[] = l(t('full story'), $node->link, $attributes);
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}
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}
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return $links;
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}
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function feedaggregator_node_update($node) {
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db_query("UPDATE {aggregator_node} SET link = '%s' WHERE nid = %d", $node->link, $node->nid);
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}
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function feedaggregator_node_load($node) {
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$result = db_query('SELECT af.title as feed_name, af.url as feed_url, af.image as feed_image, an.fid, an.iid, an.link FROM {aggregator_node} an LEFT JOIN {aggregator_feed} af ON af.fid = an.fid WHERE nid = %d', $node->nid);
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$additions = db_fetch_object($result);
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return $additions;
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}
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function feedaggregator_node_delete(&$node) {
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db_query('DELETE FROM {aggregator_node} WHERE nid = %d', $node->nid);
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}
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function feedaggregator_node_insert($node) {
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db_query("INSERT INTO {aggregator_node} SET iid = %d, nid = %d, fid = %d, link = '%s'", $node->iid, $node->nid, $node->fid, $node->link);
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}
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function feedaggregator_node_parsername() {
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return array('aggregator-item');
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}
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function feedaggregator_get_vocabulary() {
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return db_result(db_query("SELECT v.vid FROM {vocabulary} v INNER JOIN {vocabulary_node_types} n ON v.vid = n.vid WHERE n.type = '%s' ORDER BY v.weight, v.name", 'aggregator-item'));
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}
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function feedaggregator_node_feedapi($feed, $op, $item = NULL) {
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global $user;
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static $cat_names = array();
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switch($op) {
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case 'processor_name':
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return array('feedaggregator_node' => t('Nodes'));
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case 'item_count':
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$total_items = db_result(db_query('SELECT COUNT(an.nid) FROM {node} n JOIN {aggregator_node} an ON n.nid = an.nid WHERE an.fid = %d AND n.status = 1', $feed['fid']));
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return array('item_count' => $total_items);
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case 'item_save':
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if($feed['processor'] == 'feedaggregator_node') {
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$node['link'] = $item->get_link();
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// Check if the item already exists
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$duplicate = db_fetch_array(db_query("SELECT nid FROM {aggregator_node} WHERE link = '%s'", $node['link']));
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if($duplicate) {
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$old_node = (array)node_load(array('nid' => $duplicate['nid']));
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// Should this feed honor updating of existing items?
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if(!$feed['update_items'] || (
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strcasecmp($old_node['body'], $item->get_description()) == 0
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&& strcasecmp($old_node['title'], $item->get_title()) == 0
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&& strcasecmp($old_node['link'], $item->get_link()) == 0
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)) {
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return FALSE;
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}
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$node['nid'] = $old_node['nid'];
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$node['created'] = $old_node['created'];
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} else {
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// Set nodes default options
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$options = variable_get('node_options_aggregator-item', array('status', 'promote'));
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foreach($options as $option) {
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$node[$option] = 1;
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}
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$item_time = $item->get_date('U');
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$node['created'] = $item_time ? $item_time : time();
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$node->date = format_date($node['created'], 'custom', 'Y-m-d H:i:s O');
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}
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$title = $item->get_title();
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$node += array(
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'type' => 'aggregator-item',
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'changed' => time(),
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'comment' => variable_get('comment_aggregator-item', 2),
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'title' => parse_entities($title),
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'teaser' => $item->get_description() ? node_teaser($item->get_description(), $feed['format']) : '',
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'body' => $item->get_description(),
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'fid' => $feed['fid'],
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'iid' => $item->data['iid'],
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'taxonomy' => $feed['taxonomy'],
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'format' => $feed['format']
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);
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// Assign the author as specified in this feeds settings
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$account = user_load(array('name' => $feed['author']));
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$node['uid'] = $account->uid;
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// Convert Node array in to an object
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$node = (object)$node;
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if($feed['autotaxonomy'] && is_array($item->get_categories())) {
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// Find the vocabulary associated with this node type
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$vocab = feedaggregator_get_vocabulary();
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// Process any feed item category tags
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if($vocab) {
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foreach ($item->get_categories() as $category_name) {
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if (trim($category_name) != '') {
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// See if the term is already defined
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if (!isset($cat_names[$category_name])) {
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$cat_names[$category_name] = module_invoke('taxonomy', 'get_term_by_name', $category_name);
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}
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// If there is no existing term, create a new one
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if (count($cat_names[$category_name]) == 0) {
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$term = array();
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$term['name'] = check_plain($category_name);
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$term['description'] = '';
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$term['vid'] = $vocab;
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$term['weight'] = 0;
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module_invoke('taxonomy', 'save_term', $term);
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// Assign the new term to our new node
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$node->taxonomy[] = $term['tid'];
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$cat_names[$category_name][0]->tid = $term['tid'];
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}
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else {
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// Use the existing category term in the database
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if (!in_array($cat_names[$category_name][0]->tid, $node->taxonomy)) {
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$node->taxonomy[] = $cat_names[$category_name][0]->tid;
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}
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}
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}
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}
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}
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}
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node_object_prepare($node);
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$node = node_submit($node);
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node_save($node);
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return array('item_save' => TRUE);
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}
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break;
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case 'expire_items':
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// Unpublish any old nodes
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$result = db_query(db_rewrite_sql("UPDATE {node} n JOIN {aggregator_node} an ON n.nid = an.nid SET n.status = 0 WHERE an.fid = %d AND n.changed < %d"), $feed['fid'], time() - $feed['expires']);
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break;
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case 'remove':
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$result = db_query("SELECT nid FROM {aggregator_node} WHERE fid = %d", $feed['fid']);
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while($node = db_fetch_object($result)) {
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node_delete($node->nid);
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}
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break;
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}
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}
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function feedaggregator_node_form_alter($form_id, &$form) {
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switch($form_id) {
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case 'feedmanager_form_feed_edit':
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// Show extra node options if the processor is 'nodes'.
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if($form['advanced']['processor']['#value'] == 'feedaggregator_node') {
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$feed = feedmanager_get_feed($form['fid']['#value']);
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$form['advanced']['author'] = array('#type' => 'textfield', '#title' => t('Authored by'), '#maxlength' => 60, '#autocomplete_path' => 'user/autocomplete', '#default_value' => $feed['author'] ? $feed['author'] : '', '#weight' => -1, '#description' => t('Assigns created nodes to a user. Leave blank for %anonymous.', array('%anonymous' => theme('placeholder', variable_get('anonymous', 'Anonymous')))));
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// AutoTaxonomy
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if(feedaggregator_get_vocabulary()) {
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$form['advanced']['autotaxonomy'] = array(
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'#type' => 'checkbox',
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'#title' => t('Use feed category tags'),
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'#description' => t('Some feeds provide categories defined by the author. These can be added to your taxonomy, and the feed items tagged with the terms.'),
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'#default_value' => $edit['autotaxonomy'] ? $edit['autotaxonomy'] : FALSE,
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);
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} else {
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$form['advanced']['autotaxonomy'] = array(
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'#value' => t('You can automatically use tags defined in this feed to categories your nodes as they are created. To do this you need to %url to the %type content-type.', array('%url' => l(t('create a vocabulary and assign it'), 'admin/taxonomy'), '%type' => theme('placeholder', 'aggregator-item')))
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);
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}
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// Define what Filters to pass aggregator items through
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$form['advanced']['format'] = filter_form($feed['format'], 0, array('advanced', 'format'));
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$form['advanced']['format']['#collapsed'] = FALSE;
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$form['advanced']['format']['#collapsible'] = FALSE;
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}
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break;
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}
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}
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/*
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* Lists all items in the feed
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*/
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function feedaggregator_node_list_items($feed, $limit = NULL) {
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$per_page = $limit ? $limit : variable_get('default_nodes_main', 10);
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$result = pager_query(db_rewrite_sql('SELECT n.nid, n.sticky, n.created FROM {node} n JOIN {aggregator_node} an ON an.nid = n.nid WHERE an.fid = %d AND n.status = 1 ORDER BY n.sticky DESC, n.created DESC'), $per_page, $feed['fid'], NULL, $feed['fid']);
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if (db_num_rows($result)) {
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drupal_add_link(array('rel' => 'alternate',
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'type' => 'application/rss+xml',
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'title' => t('RSS'),
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'href' => url('rss.xml', NULL, NULL, TRUE)));
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$output = '';
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while ($node = db_fetch_object($result)) {
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$output .= node_view(node_load($node->nid), 1);
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}
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$output .= theme('pager', NULL, $per_page, $feed['fid']);
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}
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return $output;
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}
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