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<?php
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/* $Id $ */
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/**
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* Function to query the database for the requested types.
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* @param $type - the content type to display. Passed through filter_xss.
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* @param $teaser - show just the teaser (value: TRUE, default) or full node (value: FALSE).
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* @param $show_per_page - how many nodes to show per page, defaults to post settings value.
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* @return - themed nodes list.
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*/
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function node_get_by_type($type = null, $teaser = true, $show_per_page = 0) {
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$output = null;
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if (!$type) {
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return drupal_get_form('get_content_type_form');
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}
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if ($show_per_page) {
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$nodes_per_page = filter_xss($show_per_page);
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}
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else {
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$nodes_per_page = variable_get('default_nodes_main', 10);
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}
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if (is_string($teaser)) {
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// Default to true if it's anything other than "false".
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// Note that this obviates a need for filter_xss.
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$teaser = strtolower($teaser) == 'false' ? false : true;
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}
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$stuff = node_get_types('type', $type);
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drupal_set_title($stuff->name .' content');
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if ($stuff->description) {
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$output .= theme('type_description', $stuff->description);
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}
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// Process the type string.
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$type_list = implode("', '", explode(' ', filter_xss($type)));
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// Select nodes of the requested type.
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$results = pager_query(db_rewrite_sql("SELECT n.nid FROM {node} n WHERE n.status=1 AND n.type IN ('". $type_list ."') ORDER BY n.sticky DESC, n.created DESC"), $nodes_per_page);
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$nodes_found = false;
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while ($item = db_fetch_array($results)) {
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$node = node_load($item['nid']);
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$output .= node_view($node, $teaser, false, true);
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$nodes_found = true;
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} /* end while */
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drupal_add_feed(url('node/type/'. $type .'/feed'), t('RSS - !type', array('!type' => $stuff->name)));
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if ($nodes_found) {
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return $output . theme('pager', NULL, $nodes_per_page);
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}
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else {
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return t('There were no nodes found of the @type type.', array('@type' => $type));
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}
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}
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/**
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* Menu callback; displays an RSS feed containing recent entries of a given type
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*/
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function node_get_by_type_feed($type) {
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$type = filter_xss($type);
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$stuff = node_get_types('type', $type);
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if (!$stuff) {
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drupal_not_found();
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}
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$result = db_query_range(db_rewrite_sql("SELECT n.nid, n.created FROM {node} n WHERE n.type='%s' AND n.status=1 ORDER BY n.created DESC"), $type, 0, variable_get('default_nodes_main', 10));
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$channel['title'] = variable_get('site_name', 'Drupal') .' '. $stuff->name;
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$channel['link'] = url('node/type/'. $type, array('absolute' => TRUE));
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$items = array();
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while ($row = db_fetch_object($result)) {
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$items[] = $row->nid;
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}
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node_feed($items, $channel);
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}
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/**
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* Form to build URL for displaying content types.
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*/
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function get_content_type_form() {
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$form = array();
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$node_types = node_get_types('names');
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$form['types'] = array(
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'#type' => 'checkboxes',
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'#options' => $node_types,
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'#title' => t('Content types'),
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'#description' => t('Choose the content types you wish to display.'),
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'#required' => true,
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);
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$form['teaser'] = array(
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'#type' => 'checkbox',
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'#title' => t('Show teaser'),
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'#description' => t('Show the content in teaser format.'),
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'#default_value' => true,
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'#required' => true,
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);
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$form['how_many'] = array(
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'#type' => 'textfield',
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'#title' => t('How many per page'),
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'#description' => t('The display will be formatted into a series of pages with this many posts per page.'),
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'#default_value' => variable_get('default_nodes_main', 10),
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'#required' => true,
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);
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$form['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Show my selections'),
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'#weight' => 3,
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);
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return $form;
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}
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/**
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* Form_submit to build URL for displaying content types.
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*/
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function get_content_type_form_submit($form, &$form_state) {
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$bool = array('false', 'true');
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$types = array();
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foreach ($form_state['values']['types'] as $type => $selected) {
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if ($selected) {
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$types[] = $type;
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}
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}
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$form_state['redirect'] = 'node/type/'. implode(' ', $types) .'/'. $bool[$form_state['values']['teaser']] .'/'. $form_state['values']['how_many'];
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}
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/**
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* Implementation of hook_theme().
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*/
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function get_content_type_theme() {
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return array(
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'type_description' => array(
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'arguments' => array('description'),
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),
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);
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}
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/**
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* Function to show the description of the type.
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* @ingroup - themable.
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* @param - $description - the description of the node type.
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* @return - themed HTML string.
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*/
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function theme_type_description($description) {
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return '<p><em>('. $description .')</em></p><hr/><br/>';
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}
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/**
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* Implementation of hook_menu
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*/
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function get_content_type_menu() {
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$items = array();
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$items['node/type'] = array(
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'title' => 'List nodes of a specified type.',
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'page callback' => 'node_get_by_type',
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'access arguments' => array('access content'),
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'type' => MENU_CALLBACK,
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);
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$items['node/type/%/feed'] = array(
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'title' => 'List nodes of a specified type.',
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'page callback' => 'node_get_by_type_feed',
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'page arguments' => array(2),
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'access arguments' => array('access content'),
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'type' => MENU_CALLBACK,
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);
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return $items;
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}
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/**
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* Implementation of hook_help().
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*/
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function get_content_type_help($path, $args) {
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// drupal_set_message($path);
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switch ($section) {
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case 'admin/help#get_content_type':
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return t('The get_content_type module fills an oversight by the D5 developers. When they moved the part of CCK (sometimes called CCK-Lite) into core for creating new content types, they forgot the analog to "taxonomy/term/xxx," that is "node/type/xxx." This simple module provides that function.');
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}
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}
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