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1083 lines
41 KiB
1083 lines
41 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Function library for the links tool.
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*
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* This is a complete remake of the original link tool.
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* New features:
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* - Organize links into categories;
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* - favorites/bookmarks interface;
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* - move links up/down within a category;
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* - move categories up/down;
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* - expand/collapse all categories;
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* - add link to 'root' category => category-less link is always visible.
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*
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* @author Patrick Cool, complete remake (December 2003 - January 2004)
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* @author René Haentjens, CSV file import (October 2004)
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* @package chamilo.link
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*/
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/* FUNCTIONS */
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class Link extends Model
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{
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public $table;
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public $is_course_model = true;
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public $columns = array('id', 'c_id','url','title','description','category_id', 'display_order', 'on_homepage', 'target', 'session_id');
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public $required = array('url', 'title');
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public function __construct()
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{
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$this->table = Database::get_course_table(TABLE_LINK);
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}
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public function save($params, $show_query = null)
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{
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$course_info = api_get_course_info();
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$params['session_id'] = api_get_session_id();
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$params['category_id'] = isset($params['category_id']) ? $params['category_id'] : 0;
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$id = parent::save($params, $show_query);
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if (!empty($id)) {
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api_item_property_update($course_info, TOOL_LINK, $id, 'LinkAdded', api_get_user_id());
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}
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return $id;
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}
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function updateLink($linkId, $linkUrl)
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{
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$tblLink = Database :: get_course_table(TABLE_LINK);
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$linkUrl = Database::escape_string($linkUrl);
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$linkId = intval($linkId);
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$courseId = api_get_course_int_id();
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$session_id = api_get_session_id();
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if ($linkUrl != '') {
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$query = "UPDATE $tblLink SET url = '$linkUrl' WHERE id = $linkId AND c_id = $courseId AND session_id = $session_id";
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$resLink = Database::query($query);
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} else {
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return false;
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}
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}
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}
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/**
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* Used to add a link or a category
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* @param string $type, "link" or "category"
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* @todo replace strings by constants
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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*/
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function addlinkcategory($type)
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{
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global $catlinkstatus;
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global $msgErr;
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$ok = true;
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$course_id = api_get_course_int_id();
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if ($type == 'link') {
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$tbl_link = Database :: get_course_table(TABLE_LINK);
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$title = Security :: remove_XSS(stripslashes($_POST['title']));
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$urllink = Security :: remove_XSS($_POST['urllink']);
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$description = Security :: remove_XSS($_POST['description']);
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$selectcategory = Security :: remove_XSS($_POST['selectcategory']);
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if ($_POST['onhomepage'] == '') {
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$onhomepage = 0;
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} else {
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$onhomepage = Security :: remove_XSS($_POST['onhomepage']);
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}
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if (empty($_POST['target_link'])) {
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$target = '_self'; // Default target.
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} else {
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$target = Security :: remove_XSS($_POST['target_link']);
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}
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$urllink = trim($urllink);
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$title = trim($title);
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$description = trim($description);
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// We ensure URL to be absolute.
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if (strpos($urllink, '://') === false) {
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$urllink = 'http://' . $urllink;
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}
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// If the title is empty, we use the URL as title.
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if ($title == '') {
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$title = $urllink;
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}
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// If the URL is invalid, an error occurs.
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// Ivan, 13-OCT-2010, Chamilo 1.8.8: Let us still tolerate PHP 5.1.x and avoid a specific bug in filter_var(), see http://bugs.php.net/51192
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//if (!filter_var($urllink, FILTER_VALIDATE_URL)) {
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if (!api_valid_url($urllink, true)) { // A check against an absolute URL
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$msgErr = get_lang('GiveURL');
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Display :: display_error_message(get_lang('GiveURL'));
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$ok = false;
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} else {
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// Looking for the largest order number for this category.
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$result = Database :: query("SELECT MAX(display_order) FROM " . $tbl_link . " WHERE c_id = $course_id AND category_id = '" . intval($_POST['selectcategory']) . "'");
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list ($orderMax) = Database :: fetch_row($result);
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$order = $orderMax +1;
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$session_id = api_get_session_id();
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$sql = "INSERT INTO " . $tbl_link . " (c_id, url, title, description, category_id, display_order, on_homepage, target, session_id)
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VALUES (".$course_id.", '".Database :: escape_string($urllink) . "','" . Database :: escape_string($title) . "','" . Database :: escape_string($description) . "','" .
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Database :: escape_string($selectcategory) . "','" . Database :: escape_string($order) . "', '" . Database :: escape_string($onhomepage) . "','" .
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Database :: escape_string($target) . "','" . Database :: escape_string($session_id) . "')";
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$catlinkstatus = get_lang('LinkAdded');
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Database :: query($sql);
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$link_id = Database :: insert_id();
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if ($link_id) {
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api_set_default_visibility($link_id, TOOL_LINK);
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}
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if ((api_get_setting('search_enabled') == 'true') && $link_id && extension_loaded('xapian')) {
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require_once api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php';
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require_once api_get_path(LIBRARY_PATH) . 'search/IndexableChunk.class.php';
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require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
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$course_int_id = api_get_course_int_id();
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$courseid = api_get_course_id();
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$specific_fields = get_specific_field_list();
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$ic_slide = new IndexableChunk();
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// Add all terms to db.
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$all_specific_terms = '';
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foreach ($specific_fields as $specific_field) {
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if (isset ($_REQUEST[$specific_field['code']])) {
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$sterms = trim($_REQUEST[$specific_field['code']]);
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if (!empty ($sterms)) {
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$all_specific_terms .= ' ' . $sterms;
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$sterms = explode(',', $sterms);
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foreach ($sterms as $sterm) {
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$ic_slide->addTerm(trim($sterm), $specific_field['code']);
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add_specific_field_value($specific_field['id'], $courseid, TOOL_LINK, $link_id, $sterm);
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}
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}
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}
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}
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// Build the chunk to index.
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$ic_slide->addValue('title', $title);
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$ic_slide->addCourseId($courseid);
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$ic_slide->addToolId(TOOL_LINK);
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$xapian_data = array (
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SE_COURSE_ID => $courseid,
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SE_TOOL_ID => TOOL_LINK,
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SE_DATA => array (
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'link_id' => (int) $link_id
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),
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SE_USER => (int) api_get_user_id(),
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);
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$ic_slide->xapian_data = serialize($xapian_data);
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$description = $all_specific_terms . ' ' . $description;
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$ic_slide->addValue('content', $description);
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// Add category name if set.
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if (isset ($_POST['selectcategory']) && $selectcategory > 0) {
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$table_link_category = Database :: get_course_table(TABLE_LINK_CATEGORY);
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$sql_cat = 'SELECT * FROM %s WHERE id=%d AND c_id = %d LIMIT 1';
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$sql_cat = sprintf($sql_cat, $table_link_category, (int) $selectcategory, $course_int_id);
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$result = Database :: query($sql_cat);
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if (Database :: num_rows($result) == 1) {
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$row = Database :: fetch_array($result);
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$ic_slide->addValue('category', $row['category_title']);
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}
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}
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$di = new ChamiloIndexer();
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isset ($_POST['language']) ? $lang = Database :: escape_string($_POST['language']) : $lang = 'english';
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$di->connectDb(NULL, NULL, $lang);
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$di->addChunk($ic_slide);
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// Index and return search engine document id.
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$did = $di->index();
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if ($did) {
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// Save it to db.
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$tbl_se_ref = Database :: get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
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$sql = 'INSERT INTO %s (c_id, id, course_code, tool_id, ref_id_high_level, search_did)
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VALUES (NULL , \'%s\', \'%s\', %s, %s)';
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$sql = sprintf($sql, $tbl_se_ref, $course_int_id, $courseid, TOOL_LINK, $link_id, $did);
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Database :: query($sql);
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}
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}
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unset ($urllink, $title, $description, $selectcategory);
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Display :: display_confirmation_message(get_lang('LinkAdded'));
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}
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} elseif ($type == 'category') {
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$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
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$category_title = trim($_POST['category_title']);
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$description = trim($_POST['description']);
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if (empty($category_title)) {
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$msgErr = get_lang('GiveCategoryName');
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Display :: display_error_message(get_lang('GiveCategoryName'));
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$ok = false;
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} else {
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// Looking for the largest order number for this category.
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$result = Database :: query("SELECT MAX(display_order) FROM " . $tbl_categories." WHERE c_id = $course_id ");
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list ($orderMax) = Database :: fetch_row($result);
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$order = $orderMax +1;
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$order = intval($order);
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$session_id = api_get_session_id();
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$sql = "INSERT INTO ".$tbl_categories." (c_id, category_title, description, display_order, session_id)
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VALUES (".$course_id.", '" .Database::escape_string($category_title) . "', '" . Database::escape_string($description) . "', '$order', '$session_id')";
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Database :: query($sql);
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$catlinkstatus = get_lang('CategoryAdded');
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unset ($category_title, $description);
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Display :: display_confirmation_message(get_lang('CategoryAdded'));
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}
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}
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// "WHAT'S NEW" notification : update last tool Edit.
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if ($type == 'link') {
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global $_user;
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global $_course;
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global $nameTools;
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api_item_property_update($_course, TOOL_LINK, $link_id, 'LinkAdded', $_user['user_id']);
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}
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return $ok;
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}
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/**
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* Used to delete a link or a category
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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*/
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function deletelinkcategory($type)
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{
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global $catlinkstatus;
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global $_course;
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$tbl_link = Database :: get_course_table(TABLE_LINK);
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$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
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$TABLE_ITEM_PROPERTY = Database :: get_course_table(TABLE_ITEM_PROPERTY);
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$course_id = api_get_course_int_id();
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if ($type == 'link') {
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global $id;
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// -> Items are no longer fysically deleted, but the visibility is set to 2 (in item_property).
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// This will make a restore function possible for the platform administrator.
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if (isset ($_GET['id']) && $_GET['id'] == strval(intval($_GET['id']))) {
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$sql = "UPDATE $tbl_link SET on_homepage='0' WHERE c_id = $course_id AND id='" . intval($_GET['id']) . "'";
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Database :: query($sql);
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}
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api_item_property_update($_course, TOOL_LINK, $id, 'delete', api_get_user_id());
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delete_link_from_search_engine(api_get_course_id(), $id);
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$catlinkstatus = get_lang('LinkDeleted');
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unset ($id);
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Display :: display_confirmation_message(get_lang('LinkDeleted'));
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}
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if ($type == 'category') {
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global $id;
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if (isset ($_GET['id']) && !empty ($_GET['id'])) {
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// First we delete the category itself and afterwards all the links of this category.
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$sql = "DELETE FROM " . $tbl_categories . " WHERE c_id = $course_id AND id='" . intval($_GET['id']) . "'";
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Database :: query($sql);
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$sql = "DELETE FROM " . $tbl_link . " WHERE c_id = $course_id AND category_id='" . intval($_GET['id']) . "'";
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$catlinkstatus = get_lang('CategoryDeleted');
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unset ($id);
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Database :: query($sql);
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Display :: display_confirmation_message(get_lang('CategoryDeleted'));
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}
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}
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}
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/**
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* Removes a link from search engine database
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*
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* @param string $course_id Course code
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* @param int $document_id Document id to delete
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*/
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function delete_link_from_search_engine($course_id, $link_id)
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{
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// Remove from search engine if enabled.
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if (api_get_setting('search_enabled') == 'true') {
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$tbl_se_ref = Database :: get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
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$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
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$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_LINK, $link_id);
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$res = Database :: query($sql);
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if (Database :: num_rows($res) > 0) {
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$row = Database :: fetch_array($res);
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require_once api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php';
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$di = new ChamiloIndexer();
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$di->remove_document((int) $row['search_did']);
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}
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$sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
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$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_LINK, $link_id);
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Database :: query($sql);
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// Remove terms from db.
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require_once (api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php');
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delete_all_values_for_item($course_id, TOOL_DOCUMENT, $link_id);
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}
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}
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/**
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*
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* Get link info
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* @param int link id
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* @return array link info
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*
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* */
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function get_link_info($id)
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{
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$tbl_link = Database :: get_course_table(TABLE_LINK);
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$course_id = api_get_course_int_id();
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$sql = "SELECT * FROM " . $tbl_link . " WHERE c_id = $course_id AND id='" . intval($id) . "' ";
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$result = Database::query($sql);
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if (Database::num_rows($result)) {
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$data = Database::fetch_array($result);
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}
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return $data;
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}
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/**
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* Used to edit a link or a category
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* @todo Rewrite the whole links tool because it is becoming completely cluttered,
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* code does not follow the coding conventions, does not use html_quickform, ...
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* Some features were patched in.
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @todo replace the globals with the appropriate $_POST or $_GET values
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*/
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function editlinkcategory($type)
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{
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global $catlinkstatus;
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global $id;
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global $submit_link;
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global $submit_category;
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global $_user;
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global $_course;
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global $nameTools;
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global $urllink;
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global $title;
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global $description;
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global $category;
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global $selectcategory;
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global $description;
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global $category_title;
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global $onhomepage;
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global $target_link;
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$tbl_link = Database :: get_course_table(TABLE_LINK);
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$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
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$course_id = api_get_course_int_id();
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if ($type == 'link') {
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// This is used to populate the link-form with the info found in the database.
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if (!empty ($_GET['id'])) {
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$sql = "SELECT * FROM " . $tbl_link . " WHERE c_id = $course_id AND id='" . intval($_GET['id']) . "'";
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$result = Database :: query($sql);
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if ($myrow = Database :: fetch_array($result)) {
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$urllink = $myrow['url'];
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$title = $myrow['title'];
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$description = $myrow['description'];
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$category = $myrow['category_id'];
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if ($myrow['on_homepage'] != 0) {
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$onhomepage = 'checked';
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}
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$target_link = $myrow['target'];
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}
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}
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// This is used to put the modified info of the link-form into the database.
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if ($_POST['submitLink']) {
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// Ivan, 13-OCT-2010: It is a litle bit messy code below, just in case I added some extra-security checks here.
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$_POST['urllink'] = trim($_POST['urllink']);
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$_POST['title'] = trim(Security :: remove_XSS($_POST['title']));
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$_POST['description'] = trim(Security :: remove_XSS($_POST['description']));
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$_POST['selectcategory'] = intval($_POST['selectcategory']);
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$_POST['id'] = intval($_POST['id']);
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// We ensure URL to be absolute.
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if (strpos($_POST['urllink'], '://') === false) {
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$_POST['urllink'] = 'http://' . $_POST['urllink'];
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}
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// If the title is empty, we use the URL as title.
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if ($_POST['title'] == '') {
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$_POST['title'] = $_POST['urllink'];
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}
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// If the URL is invalid, an error occurs.
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|
// Ivan, 13-OCT-2010, Chamilo 1.8.8: Let us still tolerate PHP 5.1.x and avoid a specific bug in filter_var(), see http://bugs.php.net/51192
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//if (!filter_var($urllink, FILTER_VALIDATE_URL)) {
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if (!api_valid_url($urllink, true)) { // A check against an absolute URL.
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$msgErr = get_lang('GiveURL');
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Display :: display_error_message(get_lang('GiveURL'));
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return false;
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}
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$onhomepage = Security :: remove_XSS($_POST['onhomepage']);
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$target = Database::escape_string($_POST['target_link']);
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if (empty ($mytarget)) {
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$mytarget = '_self';
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}
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$mytarget = ",target='" . $target . "'";
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// Finding the old category_id.
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$sql = "SELECT * FROM " . $tbl_link . " WHERE c_id = $course_id AND id='" . intval($_POST['id']) . "'";
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$result = Database :: query($sql);
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$row = Database :: fetch_array($result);
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$category_id = $row['category_id'];
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if ($category_id != $_POST['selectcategory']) {
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$sql = "SELECT MAX(display_order) FROM " . $tbl_link . " WHERE c_id = $course_id AND category_id='" . intval($_POST['selectcategory']) . "'";
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$result = Database :: query($sql);
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list ($max_display_order) = Database :: fetch_row($result);
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$max_display_order++;
|
|
} else {
|
|
$max_display_order = $row['display_order'];
|
|
}
|
|
|
|
$sql = "UPDATE " . $tbl_link . " SET " .
|
|
"url='" . Database :: escape_string($_POST['urllink']) . "', " .
|
|
"title='" . Database :: escape_string($_POST['title']) . "', " .
|
|
"description='" . Database :: escape_string($_POST['description']) . "', " .
|
|
"category_id='" . Database :: escape_string($_POST['selectcategory']) . "', " .
|
|
"display_order='" . $max_display_order . "', " .
|
|
"on_homepage='" . Database :: escape_string($onhomepage) . " ' $mytarget " .
|
|
" WHERE c_id = $course_id AND id='" . intval($_POST['id']) . "'";
|
|
Database :: query($sql);
|
|
|
|
// Update search enchine and its values table if enabled.
|
|
if (api_get_setting('search_enabled') == 'true') {
|
|
$link_id = intval($_POST['id']);
|
|
|
|
$course_int_id = api_get_course_int_id();
|
|
|
|
$course_id = api_get_course_id();
|
|
$link_url = Database :: escape_string($_POST['urllink']);
|
|
$link_title = Database :: escape_string($_POST['title']);
|
|
$link_description = Database :: escape_string($_POST['description']);
|
|
|
|
// Actually, it consists on delete terms from db, insert new ones, create a new search engine document, and remove the old one.
|
|
// Get search_did.
|
|
$tbl_se_ref = Database :: get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
|
|
$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_LINK, $link_id);
|
|
$res = Database :: query($sql);
|
|
|
|
if (Database :: num_rows($res) > 0) {
|
|
require_once api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php';
|
|
require_once api_get_path(LIBRARY_PATH) . 'search/IndexableChunk.class.php';
|
|
require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
|
|
|
|
$se_ref = Database :: fetch_array($res);
|
|
$specific_fields = get_specific_field_list();
|
|
$ic_slide = new IndexableChunk();
|
|
|
|
$all_specific_terms = '';
|
|
foreach ($specific_fields as $specific_field) {
|
|
delete_all_specific_field_value($course_id, $specific_field['id'], TOOL_LINK, $link_id);
|
|
if (isset ($_REQUEST[$specific_field['code']])) {
|
|
$sterms = trim($_REQUEST[$specific_field['code']]);
|
|
if (!empty ($sterms)) {
|
|
$all_specific_terms .= ' ' . $sterms;
|
|
$sterms = explode(',', $sterms);
|
|
foreach ($sterms as $sterm) {
|
|
$ic_slide->addTerm(trim($sterm), $specific_field['code']);
|
|
add_specific_field_value($specific_field['id'], $course_id, TOOL_LINK, $link_id, $sterm);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Build the chunk to index.
|
|
$ic_slide->addValue("title", $link_title);
|
|
$ic_slide->addCourseId($course_id);
|
|
$ic_slide->addToolId(TOOL_LINK);
|
|
$xapian_data = array (
|
|
SE_COURSE_ID => $course_id,
|
|
SE_TOOL_ID => TOOL_LINK,
|
|
SE_DATA => array (
|
|
'link_id' => (int) $link_id
|
|
),
|
|
SE_USER => (int) api_get_user_id(),
|
|
|
|
);
|
|
$ic_slide->xapian_data = serialize($xapian_data);
|
|
$link_description = $all_specific_terms . ' ' . $link_description;
|
|
$ic_slide->addValue('content', $link_description);
|
|
|
|
// Add category name if set.
|
|
if (isset ($_POST['selectcategory']) && $selectcategory > 0) {
|
|
$table_link_category = Database :: get_course_table(TABLE_LINK_CATEGORY);
|
|
$sql_cat = 'SELECT * FROM %s WHERE id=%d and c_id = %d LIMIT 1';
|
|
$sql_cat = sprintf($sql_cat, $table_link_category, (int) $selectcategory, $course_int_id);
|
|
$result = Database :: query($sql_cat);
|
|
if (Database :: num_rows($result) == 1) {
|
|
$row = Database :: fetch_array($result);
|
|
$ic_slide->addValue('category', $row['category_title']);
|
|
}
|
|
}
|
|
|
|
$di = new ChamiloIndexer();
|
|
isset ($_POST['language']) ? $lang = Database :: escape_string($_POST['language']) : $lang = 'english';
|
|
$di->connectDb(NULL, NULL, $lang);
|
|
$di->remove_document((int) $se_ref['search_did']);
|
|
$di->addChunk($ic_slide);
|
|
|
|
// Index and return search engine document id.
|
|
$did = $di->index();
|
|
if ($did) {
|
|
// Save it to db.
|
|
$sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=\'%s\'';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_LINK, $link_id);
|
|
Database :: query($sql);
|
|
$sql = 'INSERT INTO %s (c_id, id, course_code, tool_id, ref_id_high_level, search_did)
|
|
VALUES (NULL , \'%s\', \'%s\', %s, %s)';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_int_id, $course_id, TOOL_LINK, $link_id, $did);
|
|
Database :: query($sql);
|
|
}
|
|
}
|
|
}
|
|
// "WHAT'S NEW" notification: update table last_toolEdit.
|
|
api_item_property_update($_course, TOOL_LINK, $_POST['id'], 'LinkUpdated', $_user['user_id']);
|
|
Display :: display_confirmation_message(get_lang('LinkModded'));
|
|
}
|
|
}
|
|
|
|
if ($type == 'category') {
|
|
|
|
// This is used to populate the category-form with the info found in the database.
|
|
if (!$submit_category) {
|
|
$sql = "SELECT * FROM " . $tbl_categories . " WHERE c_id = $course_id AND id='" . intval($_GET['id']) . "'";
|
|
$result = Database :: query($sql);
|
|
if ($myrow = Database :: fetch_array($result)) {
|
|
$category_title = $myrow['category_title'];
|
|
$description = $myrow['description'];
|
|
}
|
|
}
|
|
|
|
// This is used to put the modified info of the category-form into the database.
|
|
if ($submit_category) {
|
|
$sql = "UPDATE " . $tbl_categories . "
|
|
SET category_title='" . Database :: escape_string($_POST['category_title']) . "', description='" . Database :: escape_string($_POST['description']) . "'
|
|
WHERE c_id = $course_id AND id='" . Database :: escape_string($_POST['id']) . "'";
|
|
Database :: query($sql);
|
|
Display :: display_confirmation_message(get_lang('CategoryModded'));
|
|
}
|
|
}
|
|
return true; // On errors before this statement, exit from this function by returning false value.
|
|
}
|
|
|
|
/**
|
|
* Creates a correct $view for in the URL
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function makedefaultviewcode($locatie) {
|
|
global $aantalcategories, $view;
|
|
for ($j = 0; $j <= $aantalcategories -1; $j++) {
|
|
$view[$j] = 0;
|
|
}
|
|
$view[intval($locatie)] = '1';
|
|
}
|
|
|
|
/**
|
|
* Changes the visibility of a link
|
|
* @todo add the changing of the visibility of a course
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function change_visibility($id, $scope) {
|
|
global $_course, $_user;
|
|
if ($scope == 'link') {
|
|
api_item_property_update($_course, TOOL_LINK, $id, $_GET['action'], $_user['user_id']);
|
|
Display :: display_confirmation_message(get_lang('VisibilityChanged'));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Displays all the links of a given category.
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function showlinksofcategory($catid) {
|
|
global $is_allowed, $charset, $urlview, $up, $down, $_user, $token;
|
|
|
|
$tbl_link = Database :: get_course_table(TABLE_LINK);
|
|
$TABLE_ITEM_PROPERTY = Database :: get_course_table(TABLE_ITEM_PROPERTY);
|
|
|
|
// Condition for the session.
|
|
$session_id = api_get_session_id();
|
|
$condition_session = api_get_session_condition($session_id, true, true);
|
|
$catid = intval($catid);
|
|
|
|
$course_id = api_get_course_int_id();
|
|
|
|
$sqlLinks = "SELECT *, link.id FROM " . $tbl_link . " link, " . $TABLE_ITEM_PROPERTY . " itemproperties
|
|
WHERE itemproperties.tool='" . TOOL_LINK . "' AND
|
|
link.id=itemproperties.ref AND
|
|
link.category_id='" . $catid . "' AND
|
|
(itemproperties.visibility='0' OR itemproperties.visibility='1')
|
|
$condition_session AND
|
|
link.c_id = ".$course_id." AND
|
|
itemproperties.c_id = ".$course_id."
|
|
ORDER BY link.display_order DESC";
|
|
$result = Database :: query($sqlLinks);
|
|
$numberoflinks = Database :: num_rows($result);
|
|
if ($numberoflinks > 0) {
|
|
echo '<table class="data_table" width="100%">';
|
|
$i = 1;
|
|
while ($myrow = Database :: fetch_array($result)) {
|
|
|
|
|
|
// Validacion when belongs to a session.
|
|
$session_img = api_get_session_image($myrow['session_id'], $_user['status']);
|
|
|
|
$css_class = $i % 2 == 0 ? $css_class = 'row_odd' : $css_class = 'row_even';
|
|
|
|
$link_validator = '';
|
|
if (api_is_allowed_to_edit(null, true)) {
|
|
$link_validator = ''.Display::url(Display::return_icon('preview_view.png', get_lang('CheckURL'), array(), 16), '#', array('onclick'=>"check_url('".$myrow['id']."', '".addslashes($myrow['url'])."');"));
|
|
$link_validator .= Display::span('', array('id'=>'url_id_'.$myrow['id']));
|
|
}
|
|
|
|
if ($myrow['visibility'] == '1') {
|
|
echo '<tr class="'.$css_class.'">';
|
|
echo '<td align="center" valign="middle" width="15">';
|
|
echo '<a href="link_goto.php?'.api_get_cidreq().'&link_id='.$myrow['id'].'&link_url='.urlencode($myrow['url']).'" target="_blank">
|
|
<img src="../../main/img/link.gif" border="0" alt="'.get_lang('Link').'"/></a></td>
|
|
<td width="80%" valign="top"><a href="link_goto.php?'.api_get_cidreq().'&link_id='.$myrow['id'].'&link_url='.urlencode($myrow['url']).'" target="'.$myrow['target'].'">';
|
|
echo Security :: remove_XSS($myrow['title']);
|
|
echo '</a>';
|
|
echo $link_validator;
|
|
echo $session_img;
|
|
echo '<br />'.$myrow['description'];
|
|
} else {
|
|
if (api_is_allowed_to_edit(null, true)) {
|
|
echo '<tr class="'.$css_class.'">';
|
|
echo '<td align="center" valign="middle" width="15"><a href="link_goto.php?'.api_get_cidreq().'&link_id='.$myrow['id']."&link_url=".urlencode($myrow['url']).'" target="_blank" class="invisible">';
|
|
echo Display :: return_icon('link_na.gif', get_lang('Link')), '</a>';
|
|
echo '</td><td width="80%" valign="top"><a href="link_goto.php?', api_get_cidreq(), '&link_id=', $myrow['id'], '&link_url=', urlencode($myrow['url']),'" target="', $myrow['target'], '" class="invisible">';
|
|
echo Security :: remove_XSS($myrow['url']);
|
|
echo "</a>";
|
|
echo $link_validator;
|
|
echo $session_img, '<br />', $myrow['title'];
|
|
}
|
|
}
|
|
|
|
echo '<td style="text-align:center;">';
|
|
if (api_is_allowed_to_edit(null, true)) {
|
|
if ($session_id == $myrow['session_id']) {
|
|
echo '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&sec_token='.$token.'&action=editlink&category=' . (!empty ($category) ? $category : '') . '&id=' . $myrow['id'] . '&urlview=' . $urlview . '" title="' . get_lang('Modify') . '">' .
|
|
Display :: return_icon('edit.png', get_lang('Modify'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
|
|
// DISPLAY MOVE UP COMMAND only if it is not the top link.
|
|
/*
|
|
if ($i != 1) {
|
|
echo '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&sec_token='.$token.'&urlview=' . $urlview . '&up=', $myrow[0], '" title="' . get_lang('Up') . '">' . Display :: return_icon('up.png', get_lang('Up'), array (), ICON_SIZE_SMALL) . '', "</a>\n";
|
|
} else {
|
|
echo Display :: return_icon('up_na.png', get_lang('Up'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
}
|
|
|
|
// DISPLAY MOVE DOWN COMMAND only if it is not the bottom link.
|
|
if ($i < $numberoflinks) {
|
|
echo '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&sec_token='.$token.'&urlview=' . $urlview . '&down=' . $myrow[0] . '" title="' . get_lang('Down') . '">' . Display :: return_icon('down.png', get_lang('Down'), array (), ICON_SIZE_SMALL) . '', "</a>\n";
|
|
} else {
|
|
echo Display :: return_icon('down_na.png', get_lang('Down'), array (), ICON_SIZE_SMALL) . '', "</a>\n";
|
|
}*/
|
|
|
|
if ($myrow['visibility'] == '1') {
|
|
echo '<a href="link.php?' . api_get_cidreq() . '&sec_token='.$token.'&action=invisible&id=' . $myrow['id'] . '&scope=link&urlview=' . $urlview . '" title="' . get_lang('Hide') . '">' .
|
|
Display :: return_icon('visible.png', get_lang('Hide'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
}
|
|
if ($myrow['visibility'] == '0') {
|
|
echo ' <a href="link.php?' . api_get_cidreq() . '&sec_token='.$token.'&action=visible&id=' . $myrow['id'] . '&scope=link&urlview=' . $urlview . '" title="' . get_lang('Show') . '">' .
|
|
Display :: return_icon('invisible.png', get_lang('Show'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
}
|
|
echo ' <a href="' . api_get_self() . '?' . api_get_cidreq() . '&sec_token='.$token.'&action=deletelink&id=', $myrow['id'], '&urlview=', $urlview, "\" onclick=\"javascript: if(!confirm('" . get_lang('LinkDelconfirm') . "')) return false;\" title=\"" . get_lang('Delete') . '">' .
|
|
Display :: return_icon('delete.png', get_lang('Delete'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
|
|
} else {
|
|
echo Display :: return_icon('edit_na.png', get_lang('EditionNotAvailableFromSession'), array (), ICON_SIZE_SMALL); //get_lang('EditionNotAvailableFromSession');
|
|
}
|
|
}
|
|
echo '</td></tr>';
|
|
$i++;
|
|
}
|
|
echo '</table>';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Displays the edit, delete and move icons
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function showcategoryadmintools($categoryid) {
|
|
|
|
global $urlview, $aantalcategories, $catcounter, $token;
|
|
echo '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&sec_token='.$token.'&action=editcategory&id=' . $categoryid . '&urlview=' . $urlview . '" title=' . get_lang('Modify') . '">' . Display :: return_icon('edit.png', get_lang('Modify'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
|
|
// DISPLAY MOVE UP COMMAND only if it is not the top link.
|
|
if ($catcounter != 1) {
|
|
echo '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&sec_token='.$token.'&catmove=true&up=', $categoryid, '&urlview=' . $urlview . '" title="' . get_lang('Up') . '">' . Display :: return_icon('up.png', get_lang('Up'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
} else {
|
|
echo Display :: return_icon('up_na.png', get_lang('Up'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
}
|
|
|
|
// DISPLAY MOVE DOWN COMMAND only if it is not the bottom link.
|
|
if ($catcounter < $aantalcategories) {
|
|
echo '<a href="' . api_get_self() . '?' . api_get_cidreq() .'&sec_token='.$token.'&catmove=true&down=' . $categoryid . '&urlview=' . $urlview . '">
|
|
' . Display :: return_icon('down.png', get_lang('Down'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
} else {
|
|
echo Display :: return_icon('down_na.png', get_lang('Down'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
}
|
|
echo '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&sec_token='.$token.'&action=deletecategory&id=', $categoryid, "&urlview=$urlview\" onclick=\"javascript: if(!confirm('" . get_lang('CategoryDelconfirm') . "')) return false;\">", Display :: return_icon('delete.png', get_lang('Delete'), array (), ICON_SIZE_SMALL) . '</a>';
|
|
$catcounter++;
|
|
}
|
|
|
|
/**
|
|
* move a link or a linkcategory up or down
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function movecatlink($catlinkid) {
|
|
global $catmove;
|
|
global $up;
|
|
global $down;
|
|
$tbl_link = Database :: get_course_table(TABLE_LINK);
|
|
$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
|
|
$course_id = api_get_course_int_id();
|
|
|
|
if (!empty ($down)) {
|
|
$thiscatlinkId = intval($down);
|
|
$sortDirection = 'DESC';
|
|
}
|
|
if (!empty ($up)) {
|
|
$thiscatlinkId = intval($up);
|
|
$sortDirection = 'ASC';
|
|
}
|
|
|
|
// We check if it is a category we are moving or a link. If it is a category, a querystring catmove = true is present in the url.
|
|
if ($catmove == 'true') {
|
|
$movetable = $tbl_categories;
|
|
$catid = $catlinkid;
|
|
} else {
|
|
$movetable = $tbl_link;
|
|
// Getting the category of the link.
|
|
if (!empty ($thiscatlinkId)) {
|
|
$sql = "SELECT category_id FROM " . $movetable . " WHERE c_id = $course_id AND id='$thiscatlinkId'";
|
|
$result = Database :: query($sql);
|
|
$catid = Database :: fetch_array($result);
|
|
}
|
|
}
|
|
|
|
// This code is copied and modified from announcements.php.
|
|
if (!empty($sortDirection)) {
|
|
|
|
if (!in_array(trim(strtoupper($sortDirection)), array ('ASC', 'DESC'))){
|
|
$sortDirection = 'ASC';
|
|
}
|
|
|
|
if ($catmove == 'true') {
|
|
$sqlcatlinks = "SELECT id, display_order FROM " . $movetable . " WHERE c_id = $course_id ORDER BY display_order $sortDirection";
|
|
} else {
|
|
$sqlcatlinks = "SELECT id, display_order FROM " . $movetable . "
|
|
WHERE c_id = $course_id AND category_id='" . $catid[0] . "'
|
|
ORDER BY display_order $sortDirection";
|
|
}
|
|
$linkresult = Database :: query($sqlcatlinks);
|
|
while ($sortrow = Database :: fetch_array($linkresult)) {
|
|
// STEP 2 : FOUND THE NEXT ANNOUNCEMENT ID AND ORDER, COMMIT SWAP
|
|
// This part seems unlogic, but it isn't . We first look for the current link with the querystring ID
|
|
// and we know the next iteration of the while loop is the next one. These should be swapped.
|
|
if (isset ($thislinkFound) && $thislinkFound) {
|
|
$nextlinkId = $sortrow['id'];
|
|
$nextlinkOrdre = $sortrow['display_order'];
|
|
|
|
Database :: query("UPDATE " . $movetable . "
|
|
SET display_order = '$nextlinkOrdre'
|
|
WHERE c_id = $course_id AND id = '$thiscatlinkId'");
|
|
|
|
Database :: query("UPDATE " . $movetable . "
|
|
SET display_order = '$thislinkOrdre'
|
|
WHERE c_id = $course_id AND id = '$nextlinkId'");
|
|
|
|
break;
|
|
}
|
|
if ($sortrow['id'] == $thiscatlinkId) {
|
|
$thislinkOrdre = $sortrow['display_order'];
|
|
$thislinkFound = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
Display :: display_confirmation_message(get_lang('LinkMoved'));
|
|
}
|
|
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/**
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* CSV file import functions
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* @author René Haentjens , Ghent University
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*/
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function get_cat($catname) {
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// Get category id (existing or make new).
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$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
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$course_id = api_get_course_int_id();
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$result = Database :: query("SELECT id FROM " . $tbl_categories . " WHERE c_id = $course_id AND category_title='" . Database::escape_string($catname) . "'");
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if (Database :: num_rows($result) >= 1 && ($row = Database :: fetch_array($result))) {
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return $row['id']; // Several categories with same name: take the first.
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}
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$result = Database :: query("SELECT MAX(display_order) FROM " . $tbl_categories." WHERE c_id = $course_id ");
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list ($max_order) = Database :: fetch_row($result);
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Database :: query("INSERT INTO " . $tbl_categories . " (c_id, category_title, description, display_order)
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VALUES (".$course_id.", '" . Database::escape_string($catname) . "','','" . ($max_order +1) . "')");
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return Database :: insert_id();
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}
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/**
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* CSV file import functions
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* @author René Haentjens , Ghent University
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*/
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function put_link($url, $cat, $title, $description, $on_homepage, $hidden) {
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$tbl_link = Database :: get_course_table(TABLE_LINK);
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$course_id = api_get_course_int_id();
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$urleq = "url='" . Database :: escape_string($url) . "'";
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$cateq = "category_id=" . intval($cat);
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$result = Database :: query("SELECT id FROM $tbl_link WHERE c_id = $course_id AND " . $urleq . ' AND ' . $cateq);
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if (Database :: num_rows($result) >= 1 && ($row = Database :: fetch_array($result))) {
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Database :: query("UPDATE $tbl_link set title='" . Database :: escape_string($title) . "', description='" . Database :: escape_string($description) . "'
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WHERE c_id = $course_id AND id='" . Database :: escape_string($row['id']) . "'");
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$ipu = 'LinkUpdated';
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$rv = 1; // 1 = upd
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} else {
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// Add new link
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$result = Database :: query("SELECT MAX(display_order) FROM $tbl_link WHERE c_id = $course_id AND category_id='" . intval($cat) . "'");
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list ($max_order) = Database :: fetch_row($result);
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Database :: query("INSERT INTO $tbl_link (c_id, url, title, description, category_id, display_order, on_homepage)
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VALUES (".api_get_course_int_id().", '" . Database :: escape_string($url) . "','" . Database :: escape_string($title) . "','" . Database :: escape_string($description) . "','" . intval($cat) . "','" . (intval($max_order) + 1) . "','" . intval($on_homepage) . "')");
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$id = Database :: insert_id();
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$ipu = 'LinkAdded';
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$rv = 2; // 2 = new
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}
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global $_course, $nameTools, $_user;
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api_item_property_update($_course, TOOL_LINK, $id, $ipu, $_user['user_id']);
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if ($hidden && $ipu == 'LinkAdded') {
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api_item_property_update($_course, TOOL_LINK, $id, 'invisible', $_user['user_id']);
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}
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return $rv;
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}
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/**
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* CSV file import functions
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* @author René Haentjens , Ghent University
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*/
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function import_link($linkdata) {
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// url, category_id, title, description, ...
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// Field names used in the uploaded file
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$known_fields = array (
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'url',
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'category',
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'title',
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'description',
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'on_homepage',
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'hidden'
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);
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$hide_fields = array (
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'kw',
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'kwd',
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'kwds',
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'keyword',
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'keywords'
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);
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// All other fields are added to description, as "name:value".
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// Only one hide_field is assumed to be present, <> is removed from value.
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if (!($url = trim($linkdata['url'])) || !($title = trim($linkdata['title']))) {
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return 0; // 0 = fail
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}
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$cat = ($catname = trim($linkdata['category'])) ? get_cat($catname) : 0;
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$regs = array (); // Will be passed to ereg()
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foreach ($linkdata as $key => $value)
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if (!in_array($key, $known_fields))
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if (in_array($key, $hide_fields) && ereg('^<?([^>]*)>?$', $value, $regs)) // possibly in <...>
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if (($kwlist = trim($regs[1])) != '')
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$kw = '<i kw="' . htmlspecialchars($kwlist) . '">';
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else
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$kw = '';
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// i.e. assume only one of the $hide_fields will be present
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// and if found, hide the value as expando property of an <i> tag
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elseif (trim($value)) {
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$d .= ', ' . $key . ':' . $value;
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}
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if ($d) {
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$d = substr($d, 2) . ' - ';
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}
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return put_link($url, $cat, $title, $kw . ereg_replace('\[((/?(b|big|i|small|sub|sup|u))|br/)\]', '<\\1>', htmlspecialchars($d . $linkdata['description'])) . ($kw ? '</i>' : ''), $linkdata['on_homepage'] ? '1' : '0', $linkdata['hidden'] ? '1' : '0');
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// i.e. allow some BBcode tags, e.g. [b]...[/b]
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}
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/**
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* CSV file import functions
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* @author René Haentjens , Ghent University
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*/
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function import_csvfile()
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{
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global $catlinkstatus; // Feedback message to user.
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if (is_uploaded_file($filespec = $_FILES['import_file']['tmp_name']) && filesize($filespec) && ($myFile = @ fopen($filespec, 'r'))) {
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// read first line of file (column names) and find ',' or ';'
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$listsep = strpos($colnames = trim(fgets($myFile)), ',') !== false ? ',' : (strpos($colnames, ';') !== false ? ';' : '');
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if ($listsep) {
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$columns = array_map('strtolower', explode($listsep, $colnames));
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if (in_array('url', $columns) && in_array('title', $columns)) {
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$stats = array (
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0,
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0,
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0
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); // fails, updates, inserts
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// Modified by Ivan Tcholakov, 01-FEB-2010.
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//while (($data = fgetcsv($myFile, 32768, $listsep))) {
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while (($data = api_fgetcsv($myFile, null, $listsep))) {
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//
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foreach ($data as $i => & $text) {
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$linkdata[$columns[$i]] = $text;
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}
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$stats[import_link($linkdata)]++;
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unset ($linkdata);
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}
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$catlinkstatus = '';
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if ($stats[0]) {
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$catlinkstatus .= $stats[0] . ' ' . get_lang('CsvLinesFailed');
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}
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if ($stats[1]) {
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$catlinkstatus .= $stats[1] . ' ' . get_lang('CsvLinesOld');
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}
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if ($stats[2]) {
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$catlinkstatus .= $stats[2] . ' ' . get_lang('CsvLinesNew');
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}
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} else {
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$catlinkstatus = get_lang('CsvFileNoURL') . ($colnames ? get_lang('CsvFileLine1') . htmlspecialchars(substr($colnames, 0, 200)) . '...' : '');
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}
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} else {
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$catlinkstatus = get_lang('CsvFileNoSeps') . ($colnames ? get_lang('CsvFileLine1') . htmlspecialchars(substr($colnames, 0, 200)) . '...' : '');
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}
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fclose($myFile);
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} else {
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$catlinkstatus = get_lang('CsvFileNotFound');
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}
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}
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/**
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* This function checks if the url is a vimeo link
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* @author Julio Montoya
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* @version 1.0
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*/
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function isVimeoLink($url)
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{
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$isLink = strrpos($url, "vimeo.com");
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return $isLink;
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}
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function getVimeoLinkId($url)
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{
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$possibleUrls = array(
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'http://www.vimeo.com/',
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'http://vimeo.com/',
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'https://www.vimeo.com/',
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'https://vimeo.com/'
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);
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$url = str_replace($possibleUrls, '', $url);
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if (is_numeric($url)) {
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return $url;
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}
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return false;
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}
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/**
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* This function checks if the url is a youtube link
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* @author Jorge Frisancho
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* @author Julio Montoya - Fixing code
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* @version 1.0
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*/
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function is_youtube_link($url)
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{
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$is_youtube_link = strrpos($url, "youtube") || strrpos($url, "youtu.be");
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return $is_youtube_link;
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}
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function get_youtube_video_id($url)
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{
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// This is the length of YouTube's video IDs
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$len = 11;
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// The ID string starts after "v=", which is usually right after
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// "youtube.com/watch?" in the URL
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$pos = strpos($url, "v=");
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$id = '';
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//If false try other options
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if ($pos === false) {
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$url_parsed = parse_url($url);
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//Youtube shortener
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//http://youtu.be/ID
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$pos = strpos($url, "youtu.be");
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if ($pos == false) {
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$id = '';
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} else {
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return substr($url_parsed['path'], 1);
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}
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//if empty try the youtube.com/embed/ID
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if (empty($id)) {
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$pos = strpos($url, "embed");
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if ($pos === false) {
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return '';
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} else {
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return substr($url_parsed['path'], 7);
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}
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}
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} else {
|
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// Offset the start location to match the beginning of the ID string
|
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$pos += 2;
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// Get the ID string and return it
|
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$id = substr($url, $pos, $len);
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return $id;
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}
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}
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