C:/xampp/htdocs/moodle/lib/deprecatedlib.php

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<?php

// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

defined('MOODLE_INTERNAL') || die();

function sid_ob_rewrite($buffer) {
    throw new coding_exception('$CFG->usesid support was removed completely and can not be used.');
}

function update_log_display_entry($module, $action, $mtable, $field) {
    global $DB;

    debugging('The update_log_display_entry() is deprecated, please use db/log.php description file instead.');
}

function filter_text($text, $courseid = NULL) {
    global $CFG, $COURSE;

    if (!$courseid) {
        $courseid = $COURSE->id;
    }

    if (!$context = get_context_instance(CONTEXT_COURSE, $courseid)) {
        return $text;
    }

    return filter_manager::instance()->filter_text($text, $context);
}

function httpsrequired() {
    global $PAGE;
    $PAGE->https_required();
}

function get_file_url($path, $options=null, $type='coursefile') {
    global $CFG;

    $path = str_replace('//', '/', $path);
    $path = trim($path, '/'); // no leading and trailing slashes

    // type of file
    switch ($type) {
       case 'questionfile':
            $url = $CFG->wwwroot."/question/exportfile.php";
            break;
       case 'rssfile':
            $url = $CFG->wwwroot."/rss/file.php";
            break;
        case 'httpscoursefile':
            $url = $CFG->httpswwwroot."/file.php";
            break;
         case 'coursefile':
        default:
            $url = $CFG->wwwroot."/file.php";
    }

    if ($CFG->slasharguments) {
        $parts = explode('/', $path);
        foreach ($parts as $key => $part) {
            $subparts = explode('#', $part);
            $subparts = array_map('rawurlencode', $subparts);
            $parts[$key] = implode('#', $subparts);
        }
        $path  = implode('/', $parts);
        $ffurl = $url.'/'.$path;
        $separator = '?';
    } else {
        $path = rawurlencode('/'.$path);
        $ffurl = $url.'?file='.$path;
        $separator = '&amp;';
    }

    if ($options) {
        foreach ($options as $name=>$value) {
            $ffurl = $ffurl.$separator.$name.'='.$value;
            $separator = '&amp;';
        }
    }

    return $ffurl;
}

function print_file_upload_error($filearray = '', $returnerror = false) {
    throw new coding_exception('print_file_upload_error() can not be used any more, please use new file API');
}

function resolve_filename_collisions($destination,$files,$format='%s_%d.%s') {
    throw new coding_exception('resolve_filename_collisions() can not be used any more, please use new file API');
}

function check_potential_filename($destination,$filename,$files) {
    throw new coding_exception('check_potential_filename() can not be used any more, please use new file API');
}

function upload_print_form_fragment($numfiles=1, $names=null, $descriptions=null, $uselabels=false, $labelnames=null, $coursebytes=0, $modbytes=0, $return=false) {
    throw new coding_exception('upload_print_form_fragment() can not be used any more, please use new file API');
}

function auth_get_plugin_title($authtype) {
    debugging('Function auth_get_plugin_title() is deprecated, please use standard get_string("pluginname", "auth_'.$authtype.'")!');
    return get_string('pluginname', "auth_{$authtype}");
}



function enrol_into_course($course, $user, $enrol) {
    error('Function enrol_into_course() was removed, please use new enrol plugins instead!');
}

function get_default_course_role($course) {
    debugging('Function get_default_course_role() is deprecated, please use individual enrol plugin settings instead!');

    $student = get_archetype_roles('student');
    $student = reset($student);

    return $student;
}

function get_my_courses($userid, $sort='visible DESC,sortorder ASC', $fields=NULL, $doanything=false,$limit=0) {
    error('Function get_my_courses() was removed, please use new enrol_get_my_courses() or enrol_get_users_courses()!');
}

function get_list_of_languages($refreshcache=false, $returnall=false) {
    debugging('get_list_of_languages() is deprecated, please use get_string_manager()->get_list_of_translations() instead.');
    if ($refreshcache) {
        get_string_manager()->reset_caches();
    }
    return get_string_manager()->get_list_of_translations($returnall);
}

function get_list_of_currencies() {
    debugging('get_list_of_currencies() is deprecated, please use get_string_manager()->get_list_of_currencies() instead.');
    return get_string_manager()->get_list_of_currencies();
}

function get_list_of_countries() {
    debugging('get_list_of_countries() is deprecated, please use get_string_manager()->get_list_of_countries() instead.');
    return get_string_manager()->get_list_of_countries(false);
}

function isteacher() {
    error('Function isteacher() was removed, please use capabilities instead!');
}

function isteacherinanycourse() {
    throw new coding_Exception('Function isteacherinanycourse() was removed, please use capabilities instead!');
}

function get_guest() {
    throw new coding_Exception('Function get_guest() was removed, please use capabilities instead!');
}

function isguest() {
    throw new coding_Exception('Function isguest() was removed, please use capabilities instead!');
}

function get_teacher() {
    throw new coding_Exception('Function get_teacher() was removed, please use capabilities instead!');
}

function get_course_participants($courseid) {
    return get_enrolled_users(get_context_instance(CONTEXT_COURSE, $courseid));
}

function is_course_participant($userid, $courseid) {
    return is_enrolled(get_context_instance(CONTEXT_COURSE, $courseid), $userid);
}

function get_recent_enrolments($courseid, $timestart) {
    global $DB;

    $context = get_context_instance(CONTEXT_COURSE, $courseid);

    $sql = "SELECT u.id, u.firstname, u.lastname, MAX(l.time)
              FROM {user} u, {role_assignments} ra, {log} l
             WHERE l.time > ?
                   AND l.course = ?
                   AND l.module = 'course'
                   AND l.action = 'enrol'
                   AND ".$DB->sql_cast_char2int('l.info')." = u.id
                   AND u.id = ra.userid
                   AND ra.contextid ".get_related_contexts_string($context)."
          GROUP BY u.id, u.firstname, u.lastname
          ORDER BY MAX(l.time) ASC";
    $params = array($timestart, $courseid);
    return $DB->get_records_sql($sql, $params);
}


function make_context_subobj($rec) {
    throw new coding_Exception('make_context_subobj() was removed, use new context preloading');
}

function is_context_subobj_valid($rec, $contextlevel) {
    throw new coding_Exception('is_context_subobj_valid() was removed, use new context preloading');
}

function ensure_context_subobj_present(&$rec, $contextlevel) {
    throw new coding_Exception('ensure_context_subobj_present() was removed, use new context preloading');
}

########### FROM weblib.php ##########################################################################


function print_simple_box($message, $align='', $width='', $color='', $padding=5, $class='generalbox', $id='', $return=false) {
    $output = '';
    $output .= print_simple_box_start($align, $width, $color, $padding, $class, $id, true);
    $output .= $message;
    $output .= print_simple_box_end(true);

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}



function print_simple_box_start($align='', $width='', $color='', $padding=5, $class='generalbox', $id='', $return=false) {
    debugging('print_simple_box(_start/_end) is deprecated. Please use $OUTPUT->box(_start/_end) instead', DEBUG_DEVELOPER);

    $output = '';

    $divclasses = 'box '.$class.' '.$class.'content';
    $divstyles  = '';

    if ($align) {
        $divclasses .= ' boxalign'.$align;    // Implement alignment using a class
    }
    if ($width) {    // Hopefully we can eliminate these in calls to this function (inline styles are bad)
        if (substr($width, -1, 1) == '%') {    // Width is a % value
            $width = (int) substr($width, 0, -1);    // Extract just the number
            if ($width < 40) {
                $divclasses .= ' boxwidthnarrow';    // Approx 30% depending on theme
            } else if ($width > 60) {
                $divclasses .= ' boxwidthwide';      // Approx 80% depending on theme
            } else {
                $divclasses .= ' boxwidthnormal';    // Approx 50% depending on theme
            }
        } else {
            $divstyles  .= ' width:'.$width.';';     // Last resort
        }
    }
    if ($color) {    // Hopefully we can eliminate these in calls to this function (inline styles are bad)
        $divstyles  .= ' background:'.$color.';';
    }
    if ($divstyles) {
        $divstyles = ' style="'.$divstyles.'"';
    }

    if ($id) {
        $id = ' id="'.$id.'"';
    }

    $output .= '<div'.$id.$divstyles.' class="'.$divclasses.'">';

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}


function print_simple_box_end($return=false) {
    $output = '</div>';
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function convert_urls_into_links($text) {
    debugging('convert_urls_into_links() has been deprecated and replaced by a new filter');
}

function get_emoticons_list_for_help_file() {
    debugging('get_emoticons_list_for_help_file() has been deprecated, see the new emoticon_manager API');
    return '';
}

function replace_smilies(&$text) {
    debugging('replace_smilies() has been deprecated and replaced with the new filter_emoticon');
}

function detect_munged_arguments($string, $allowdots=1) {
    if (substr_count($string, '..') > $allowdots) {   // Sometimes we allow dots in references
        return true;
    }
    if (preg_match('/[\|\`]/', $string)) {  // check for other bad characters
        return true;
    }
    if (empty($string) or $string == '/') {
        return true;
    }

    return false;
}


function unzip_file($zipfile, $destination = '', $showstatus_ignored = true) {
    global $CFG;

    //Extract everything from zipfile
    $path_parts = pathinfo(cleardoubleslashes($zipfile));
    $zippath = $path_parts["dirname"];       //The path of the zip file
    $zipfilename = $path_parts["basename"];  //The name of the zip file
    $extension = $path_parts["extension"];    //The extension of the file

    //If no file, error
    if (empty($zipfilename)) {
        return false;
    }

    //If no extension, error
    if (empty($extension)) {
        return false;
    }

    //Clear $zipfile
    $zipfile = cleardoubleslashes($zipfile);

    //Check zipfile exists
    if (!file_exists($zipfile)) {
        return false;
    }

    //If no destination, passed let's go with the same directory
    if (empty($destination)) {
        $destination = $zippath;
    }

    //Clear $destination
    $destpath = rtrim(cleardoubleslashes($destination), "/");

    //Check destination path exists
    if (!is_dir($destpath)) {
        return false;
    }

    $packer = get_file_packer('application/zip');

    $result = $packer->extract_to_pathname($zipfile, $destpath);

    if ($result === false) {
        return false;
    }

    foreach ($result as $status) {
        if ($status !== true) {
            return false;
        }
    }

    return true;
}

function zip_files ($originalfiles, $destination) {
    global $CFG;

    //Extract everything from destination
    $path_parts = pathinfo(cleardoubleslashes($destination));
    $destpath = $path_parts["dirname"];       //The path of the zip file
    $destfilename = $path_parts["basename"];  //The name of the zip file
    $extension = $path_parts["extension"];    //The extension of the file

    //If no file, error
    if (empty($destfilename)) {
        return false;
    }

    //If no extension, add it
    if (empty($extension)) {
        $extension = 'zip';
        $destfilename = $destfilename.'.'.$extension;
    }

    //Check destination path exists
    if (!is_dir($destpath)) {
        return false;
    }

    //Check destination path is writable. TODO!!

    //Clean destination filename
    $destfilename = clean_filename($destfilename);

    //Now check and prepare every file
    $files = array();
    $origpath = NULL;

    foreach ($originalfiles as $file) {  //Iterate over each file
        //Check for every file
        $tempfile = cleardoubleslashes($file); // no doubleslashes!
        //Calculate the base path for all files if it isn't set
        if ($origpath === NULL) {
            $origpath = rtrim(cleardoubleslashes(dirname($tempfile)), "/");
        }
        //See if the file is readable
        if (!is_readable($tempfile)) {  //Is readable
            continue;
        }
        //See if the file/dir is in the same directory than the rest
        if (rtrim(cleardoubleslashes(dirname($tempfile)), "/") != $origpath) {
            continue;
        }
        //Add the file to the array
        $files[] = $tempfile;
    }

    $zipfiles = array();
    $start = strlen($origpath)+1;
    foreach($files as $file) {
        $zipfiles[substr($file, $start)] = $file;
    }

    $packer = get_file_packer('application/zip');

    return $packer->archive_to_pathname($zipfiles, $destpath . '/' . $destfilename);
}



function mygroupid($courseid) {
    global $USER;
    if ($groups = groups_get_all_groups($courseid, $USER->id)) {
        return array_keys($groups);
    } else {
        return false;
    }
}


function groupmode($course, $cm=null) {

    if (isset($cm->groupmode) && empty($course->groupmodeforce)) {
        return $cm->groupmode;
    }
    return $course->groupmode;
}

function set_current_group($courseid, $groupid) {
    global $SESSION;
    return $SESSION->currentgroup[$courseid] = $groupid;
}


function get_current_group($courseid, $full = false) {
    global $SESSION;

    if (isset($SESSION->currentgroup[$courseid])) {
        if ($full) {
            return groups_get_group($SESSION->currentgroup[$courseid]);
        } else {
            return $SESSION->currentgroup[$courseid];
        }
    }

    $mygroupid = mygroupid($courseid);
    if (is_array($mygroupid)) {
        $mygroupid = array_shift($mygroupid);
        set_current_group($courseid, $mygroupid);
        if ($full) {
            return groups_get_group($mygroupid);
        } else {
            return $mygroupid;
        }
    }

    if ($full) {
        return false;
    } else {
        return 0;
    }
}


function error($message, $link='') {
    throw new moodle_exception('notlocalisederrormessage', 'error', $link, $message, 'error() is a deprecated function, please call print_error() instead of error()');
}



function table_exists($table) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    return $DB->get_manager()->table_exists($table);
}

function field_exists($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    return $DB->get_manager()->field_exists($table, $field);
}

function find_index_name($table, $index) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    return $DB->get_manager()->find_index_name($table, $index);
}

function index_exists($table, $index) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    return $DB->get_manager()->index_exists($table, $index);
}

function find_check_constraint_name($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    return $DB->get_manager()->find_check_constraint_name($table, $field);
}

function check_constraint_exists($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    return $DB->get_manager()->check_constraint_exists($table, $field);
}

function find_key_name($table, $xmldb_key) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    return $DB->get_manager()->find_key_name($table, $xmldb_key);
}

function drop_table($table) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->drop_table($table);
    return true;
}

function install_from_xmldb_file($file) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->install_from_xmldb_file($file);
    return true;
}

function create_table($table) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->create_table($table);
    return true;
}

function create_temp_table($table) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->create_temp_table($table);
    return true;
}

function rename_table($table, $newname) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->rename_table($table, $newname);
    return true;
}

function add_field($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->add_field($table, $field);
    return true;
}

function drop_field($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->drop_field($table, $field);
    return true;
}

function change_field_type($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->change_field_type($table, $field);
    return true;
}

function change_field_precision($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->change_field_precision($table, $field);
    return true;
}

function change_field_unsigned($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->change_field_unsigned($table, $field);
    return true;
}

function change_field_notnull($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->change_field_notnull($table, $field);
    return true;
}

function change_field_enum($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used! Only dropping of enums is allowed.');
    $DB->get_manager()->drop_enum_from_field($table, $field);
    return true;
}

function change_field_default($table, $field) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->change_field_default($table, $field);
    return true;
}

function rename_field($table, $field, $newname) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->rename_field($table, $field, $newname);
    return true;
}

function add_key($table, $key) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->add_key($table, $key);
    return true;
}

function drop_key($table, $key) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->drop_key($table, $key);
    return true;
}

function rename_key($table, $key, $newname) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->rename_key($table, $key, $newname);
    return true;
}

function add_index($table, $index) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->add_index($table, $index);
    return true;
}

function drop_index($table, $index) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->drop_index($table, $index);
    return true;
}

function rename_index($table, $index, $newname) {
    global $DB;
    debugging('Deprecated ddllib function used!');
    $DB->get_manager()->rename_index($table, $index, $newname);
    return true;
}



function stripslashes_safe($mixed) {
    error('stripslashes_safe() not available anymore');
}
function stripslashes_recursive($var) {
    error('stripslashes_recursive() not available anymore');
}
function addslashes_object($dataobject) {
    error('addslashes_object() not available anymore');
}
function addslashes_recursive($var) {
    error('addslashes_recursive() not available anymore');
}
function execute_sql($command, $feedback=true) {
    error('execute_sql() not available anymore');
}
function record_exists_select($table, $select='') {
    error('record_exists_select() not available anymore');
}
function record_exists_sql($sql) {
    error('record_exists_sql() not available anymore');
}
function count_records_select($table, $select='', $countitem='COUNT(*)') {
    error('count_records_select() not available anymore');
}
function count_records_sql($sql) {
    error('count_records_sql() not available anymore');
}
function get_record_sql($sql, $expectmultiple=false, $nolimit=false) {
    error('get_record_sql() not available anymore');
}
function get_record_select($table, $select='', $fields='*') {
    error('get_record_select() not available anymore');
}
function get_recordset($table, $field='', $value='', $sort='', $fields='*', $limitfrom='', $limitnum='') {
    error('get_recordset() not available anymore');
}
function get_recordset_sql($sql, $limitfrom=null, $limitnum=null) {
    error('get_recordset_sql() not available anymore');
}
function rs_fetch_record(&$rs) {
    error('rs_fetch_record() not available anymore');
}
function rs_next_record(&$rs) {
    error('rs_next_record() not available anymore');
}
function rs_fetch_next_record(&$rs) {
    error('rs_fetch_next_record() not available anymore');
}
function rs_EOF($rs) {
    error('rs_EOF() not available anymore');
}
function rs_close(&$rs) {
    error('rs_close() not available anymore');
}
function get_records_select($table, $select='', $sort='', $fields='*', $limitfrom='', $limitnum='') {
    error('get_records_select() not available anymore');
}
function get_field_select($table, $return, $select) {
    error('get_field_select() not available anymore');
}
function get_field_sql($sql) {
    error('get_field_sql() not available anymore');
}
function delete_records_select($table, $select='') {
    error('get_field_sql() not available anymore');
}
function configure_dbconnection() {
    error('configure_dbconnection() removed');
}
function sql_max($field) {
    error('sql_max() removed - use normal sql MAX() instead');
}
function sql_as() {
    error('sql_as() removed - do not use AS for tables at all');
}
function sql_paging_limit($page, $recordsperpage) {
    error('Function sql_paging_limit() is deprecated. Replace it with the correct use of limitfrom, limitnum parameters');
}
function db_uppercase() {
    error('upper() removed - use normal sql UPPER()');
}
function db_lowercase() {
    error('upper() removed - use normal sql LOWER()');
}
function modify_database($sqlfile='', $sqlstring='') {
    error('modify_database() removed - use new XMLDB functions');
}
function where_clause($field1='', $value1='', $field2='', $value2='', $field3='', $value3='') {
    error('where_clause() removed - use new functions with $conditions parameter');
}
function execute_sql_arr($sqlarr, $continue=true, $feedback=true) {
    error('execute_sql_arr() removed');
}
function get_records_list($table, $field='', $values='', $sort='', $fields='*', $limitfrom='', $limitnum='') {
    error('get_records_list() removed');
}
function get_recordset_list($table, $field='', $values='', $sort='', $fields='*', $limitfrom='', $limitnum='') {
    error('get_recordset_list() removed');
}
function get_records_menu($table, $field='', $value='', $sort='', $fields='*', $limitfrom='', $limitnum='') {
    error('get_records_menu() removed');
}
function get_records_select_menu($table, $select='', $sort='', $fields='*', $limitfrom='', $limitnum='') {
    error('get_records_select_menu() removed');
}
function get_records_sql_menu($sql, $limitfrom='', $limitnum='') {
    error('get_records_sql_menu() removed');
}
function column_type($table, $column) {
    error('column_type() removed');
}
function recordset_to_menu($rs) {
    error('recordset_to_menu() removed');
}
function records_to_menu($records, $field1, $field2) {
    error('records_to_menu() removed');
}
function set_field_select($table, $newfield, $newvalue, $select, $localcall = false) {
    error('set_field_select() removed');
}
function get_fieldset_select($table, $return, $select) {
    error('get_fieldset_select() removed');
}
function get_fieldset_sql($sql) {
    error('get_fieldset_sql() removed');
}
function sql_ilike() {
    error('sql_ilike() not available anymore');
}
function sql_fullname($first='firstname', $last='lastname') {
    error('sql_fullname() not available anymore');
}
function sql_concat() {
    error('sql_concat() not available anymore');
}
function sql_empty() {
    error('sql_empty() not available anymore');
}
function sql_substr() {
    error('sql_substr() not available anymore');
}
function sql_bitand($int1, $int2) {
    error('sql_bitand() not available anymore');
}
function sql_bitnot($int1) {
    error('sql_bitnot() not available anymore');
}
function sql_bitor($int1, $int2) {
    error('sql_bitor() not available anymore');
}
function sql_bitxor($int1, $int2) {
    error('sql_bitxor() not available anymore');
}
function sql_cast_char2int($fieldname, $text=false) {
    error('sql_cast_char2int() not available anymore');
}
function sql_compare_text($fieldname, $numchars=32) {
    error('sql_compare_text() not available anymore');
}
function sql_order_by_text($fieldname, $numchars=32) {
    error('sql_order_by_text() not available anymore');
}
function sql_length($fieldname) {
    error('sql_length() not available anymore');
}
function sql_concat_join($separator="' '", $elements=array()) {
    error('sql_concat_join() not available anymore');
}
function sql_isempty($tablename, $fieldname, $nullablefield, $textfield) {
    error('sql_isempty() not available anymore');
}
function sql_isnotempty($tablename, $fieldname, $nullablefield, $textfield) {
    error('sql_isnotempty() not available anymore');
}
function begin_sql() {
    error('begin_sql() not available anymore');
}
function commit_sql() {
    error('commit_sql() not available anymore');
}
function rollback_sql() {
    error('rollback_sql() not available anymore');
}
function insert_record($table, $dataobject, $returnid=true, $primarykey='id') {
    error('insert_record() not available anymore');
}
function update_record($table, $dataobject) {
    error('update_record() not available anymore');
}
function get_records($table, $field='', $value='', $sort='', $fields='*', $limitfrom='', $limitnum='') {
    error('get_records() not available anymore');
}
function get_record($table, $field1, $value1, $field2='', $value2='', $field3='', $value3='', $fields='*') {
    error('get_record() not available anymore');
}
function set_field($table, $newfield, $newvalue, $field1, $value1, $field2='', $value2='', $field3='', $value3='') {
    error('set_field() not available anymore');
}
function count_records($table, $field1='', $value1='', $field2='', $value2='', $field3='', $value3='') {
    error('count_records() not available anymore');
}
function record_exists($table, $field1='', $value1='', $field2='', $value2='', $field3='', $value3='') {
    error('record_exists() not available anymore');
}
function delete_records($table, $field1='', $value1='', $field2='', $value2='', $field3='', $value3='') {
    error('delete_records() not available anymore');
}
function get_field($table, $return, $field1, $value1, $field2='', $value2='', $field3='', $value3='') {
    error('get_field() not available anymore');
}
function table_column($table, $oldfield, $field, $type='integer', $size='10',
                      $signed='unsigned', $default='0', $null='not null', $after='') {
    error('table_column() was removed, please use new ddl functions');
}
function use_html_editor($name='', $editorhidebuttons='', $id='') {
    error('use_html_editor() not available anymore');
}

function require_js($lib) {
    global $CFG, $PAGE;
    // Add the lib to the list of libs to be loaded, if it isn't already
    // in the list.
    if (is_array($lib)) {
        foreach($lib as $singlelib) {
            require_js($singlelib);
        }
        return;
    }

    debugging('Call to deprecated function require_js. Please use $PAGE->requires->js_module() instead.', DEBUG_DEVELOPER);

    if (strpos($lib, 'yui_') === 0) {
        $PAGE->requires->yui2_lib(substr($lib, 4));
    } else {
        if ($PAGE->requires->is_head_done()) {
            echo html_writer::script('', $lib);
        } else {
            $PAGE->requires->js(new moodle_url($lib));
        }
    }
}

function make_mod_upload_directory($courseid) {
    throw new coding_exception('make_mod_upload_directory has been deprecated by the file API changes in Moodle 2.0.');
}

function theme_setup($theme = '', $params=NULL) {
    throw new coding_exception('The function theme_setup is no longer required, and should no longer be used. ' .
            'The current theme gets initialised automatically before it is first used.');
}

function current_theme() {
    global $PAGE;
    // TODO, uncomment this once we have eliminated all references to current_theme in core code.
    // debugging('current_theme is deprecated, use $PAGE->theme->name instead', DEBUG_DEVELOPER);
    return $PAGE->theme->name;
}

function page_id_and_class(&$getid, &$getclass) {
    global $PAGE;
    debugging('Call to deprecated function page_id_and_class. Please use $PAGE->pagetype instead.', DEBUG_DEVELOPER);
    $getid = $PAGE->pagetype;
    $getclass = $PAGE->legacyclass;
}

function formerr($error) {
    debugging('formerr() has been deprecated. Please change your code to use $OUTPUT->error_text($string).');
    global $OUTPUT;
    echo $OUTPUT->error_text($error);
}

function skip_main_destination() {
    global $OUTPUT;
    return $OUTPUT->skip_link_target();
}

function print_headline($text, $size=2, $return=false) {
    global $OUTPUT;
    debugging('print_headline() has been deprecated. Please change your code to use $OUTPUT->heading().');
    $output = $OUTPUT->heading($text, $size);
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_heading($text, $deprecated = '', $size = 2, $class = 'main', $return = false, $id = '') {
    global $OUTPUT;
    debugging('print_heading() has been deprecated. Please change your code to use $OUTPUT->heading().');
    if (!empty($deprecated)) {
        debugging('Use of deprecated align attribute of print_heading. ' .
                'Please do not specify styling in PHP code like that.', DEBUG_DEVELOPER);
    }
    $output = $OUTPUT->heading($text, $size, $class, $id);
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_heading_block($heading, $class='', $return=false) {
    global $OUTPUT;
    debugging('print_heading_with_block() has been deprecated. Please change your code to use $OUTPUT->heading().');
    $output = $OUTPUT->heading($heading, 2, 'headingblock header ' . renderer_base::prepare_classes($class));
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_box($message, $classes='generalbox', $ids='', $return=false) {
    global $OUTPUT;
    debugging('print_box() has been deprecated. Please change your code to use $OUTPUT->box().');
    $output = $OUTPUT->box($message, $classes, $ids);
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_box_start($classes='generalbox', $ids='', $return=false) {
    global $OUTPUT;
    debugging('print_box_start() has been deprecated. Please change your code to use $OUTPUT->box_start().');
    $output = $OUTPUT->box_start($classes, $ids);
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_box_end($return=false) {
    global $OUTPUT;
    debugging('print_box_end() has been deprecated. Please change your code to use $OUTPUT->box_end().');
    $output = $OUTPUT->box_end();
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_container($message, $clearfix=false, $classes='', $idbase='', $return=false) {
    global $OUTPUT;
    if ($clearfix) {
        $classes .= ' clearfix';
    }
    $output = $OUTPUT->container($message, $classes, $idbase);
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_container_start($clearfix=false, $classes='', $idbase='', $return=false) {
    global $OUTPUT;
    if ($clearfix) {
        $classes .= ' clearfix';
    }
    $output = $OUTPUT->container_start($classes, $idbase);
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function check_theme_arrows() {
    debugging('check_theme_arrows() has been deprecated, do not use it anymore, it is now automatic.');
}

function print_container_end($return=false) {
    global $OUTPUT;
    $output = $OUTPUT->container_end();
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function notify($message, $classes = 'notifyproblem', $align = 'center', $return = false) {
    global $OUTPUT;

    if ($classes == 'green') {
        debugging('Use of deprecated class name "green" in notify. Please change to "notifysuccess".', DEBUG_DEVELOPER);
        $classes = 'notifysuccess'; // Backward compatible with old color system
    }

    $output = $OUTPUT->notification($message, $classes);
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_continue($link, $return = false) {
    global $CFG, $OUTPUT;

    if ($link == '') {
        if (!empty($_SERVER['HTTP_REFERER'])) {
            $link = $_SERVER['HTTP_REFERER'];
            $link = str_replace('&', '&amp;', $link); // make it valid XHTML
        } else {
            $link = $CFG->wwwroot .'/';
        }
    }

    $output = $OUTPUT->continue_button($link);
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_header($title='', $heading='', $navigation='', $focus='',
                      $meta='', $cache=true, $button='&nbsp;', $menu=null,
                      $usexml=false, $bodytags='', $return=false) {
    global $PAGE, $OUTPUT;

    $PAGE->set_title($title);
    $PAGE->set_heading($heading);
    $PAGE->set_cacheable($cache);
    if ($button == '') {
        $button = '&nbsp;';
    }
    $PAGE->set_button($button);
    $PAGE->set_headingmenu($menu);

    // TODO $menu

    if ($meta) {
        throw new coding_exception('The $meta parameter to print_header is no longer supported. '.
                'You should be able to do everything you want with $PAGE->requires and other such mechanisms.');
    }
    if ($usexml) {
        throw new coding_exception('The $usexml parameter to print_header is no longer supported.');
    }
    if ($bodytags) {
        throw new coding_exception('The $bodytags parameter to print_header is no longer supported.');
    }

    $output = $OUTPUT->header();

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_header_simple($title='', $heading='', $navigation='', $focus='', $meta='',
                       $cache=true, $button='&nbsp;', $menu='', $usexml=false, $bodytags='', $return=false) {

    global $COURSE, $CFG, $PAGE, $OUTPUT;

    if ($meta) {
        throw new coding_exception('The $meta parameter to print_header is no longer supported. '.
                'You should be able to do everything you want with $PAGE->requires and other such mechanisms.');
    }
    if ($usexml) {
        throw new coding_exception('The $usexml parameter to print_header is no longer supported.');
    }
    if ($bodytags) {
        throw new coding_exception('The $bodytags parameter to print_header is no longer supported.');
    }

    $PAGE->set_title($title);
    $PAGE->set_heading($heading);
    $PAGE->set_cacheable(true);
    $PAGE->set_button($button);

    $output = $OUTPUT->header();

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_footer($course = NULL, $usercourse = NULL, $return = false) {
    global $PAGE, $OUTPUT;
    debugging('print_footer() has been deprecated. Please change your code to use $OUTPUT->footer().');
    // TODO check arguments.
    if (is_string($course)) {
        debugging("Magic values like 'home', 'empty' passed to print_footer no longer have any effect. " .
                'To achieve a similar effect, call $PAGE->set_pagelayout before you call print_header.', DEBUG_DEVELOPER);
    } else if (!empty($course->id) && $course->id != $PAGE->course->id) {
        throw new coding_exception('The $course object you passed to print_footer does not match $PAGE->course.');
    }
    if (!is_null($usercourse)) {
        debugging('The second parameter ($usercourse) to print_footer is no longer supported. ' .
                '(I did not think it was being used anywhere.)', DEBUG_DEVELOPER);
    }
    $output = $OUTPUT->footer();
    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function user_login_string($course='ignored', $user='ignored') {
    debugging('user_login_info() has been deprecated. User login info is now handled via themes layouts.');
    return '';
}

function print_side_block($heading='', $content='', $list=NULL, $icons=NULL, $footer='', $attributes = array(), $title='') {
    global $OUTPUT;

    // We don't use $heading, becuse it often contains HTML that we don't want.
    // However, sometimes $title is not set, but $heading is.
    if (empty($title)) {
        $title = strip_tags($heading);
    }

    // Render list contents to HTML if required.
    if (empty($content) && $list) {
        $content = $OUTPUT->list_block_contents($icons, $list);
    }

    $bc = new block_contents();
    $bc->content = $content;
    $bc->footer = $footer;
    $bc->title = $title;

    if (isset($attributes['id'])) {
        $bc->id = $attributes['id'];
        unset($attributes['id']);
    }
    $bc->attributes = $attributes;

    echo $OUTPUT->block($bc, BLOCK_POS_LEFT); // POS LEFT may be wrong, but no way to get a better guess here.
}

function print_side_block_start($heading='', $attributes = array()) {
    throw new coding_exception('print_side_block_start has been deprecated. Please change your code to use $OUTPUT->block().');
}

function print_side_block_end($attributes = array(), $title='') {
    throw new coding_exception('print_side_block_end has been deprecated. Please change your code to use $OUTPUT->block().');
}

function blocks_have_content(&$blockmanager, $region) {
    debugging('The function blocks_have_content should no longer be used. Blocks are now printed by the theme.');
    return false;
}

function blocks_print_group($page, $blockmanager, $region) {
    debugging('The function blocks_print_group should no longer be used. Blocks are now printed by the theme.');
}

function blocks_setup(&$page, $pinned = BLOCKS_PINNED_FALSE) {
    debugging('The function blocks_print_group should no longer be used. Blocks are now printed by the theme.');
    return array(BLOCK_POS_LEFT => array(), BLOCK_POS_RIGHT => array());
}

function blocks_preferred_width($instances) {
    debugging('The function blocks_print_group should no longer be used. Blocks are now printed by the theme.');
    $width = 210;
}

function blocks_execute_action($page, &$blockmanager, $blockaction, $instanceorid, $pinned=false, $redirect=true) {
    throw new coding_exception('blocks_execute_action is no longer used. The way blocks work has been changed. See the new code in blocklib.php.');
}

function blocks_execute_url_action(&$PAGE, &$blockmanager,$pinned=false) {
    throw new coding_exception('blocks_execute_url_action is no longer used. It has been replaced by methods of block_manager.');
}

function blocks_execute_repositioning(&$instance, $newpos, $newweight, $pinned=false) {
    throw new coding_exception('blocks_execute_repositioning is no longer used. The way blocks work has been changed. See the new code in blocklib.php.');
}


function blocks_move_block($page, &$instance, $destpos, $destweight=NULL, $pinned=false) {
    throw new coding_exception('blocks_move_block is no longer used. The way blocks work has been changed. See the new code in blocklib.php.');
}

function print_table($table, $return=false) {
    global $OUTPUT;
    // TODO MDL-19755 turn debugging on once we migrate the current core code to use the new API
    debugging('print_table() has been deprecated. Please change your code to use html_writer::table().');
    $newtable = new html_table();
    foreach ($table as $property => $value) {
        if (property_exists($newtable, $property)) {
            $newtable->{$property} = $value;
        }
    }
    if (isset($table->class)) {
        $newtable->attributes['class'] = $table->class;
    }
    if (isset($table->rowclass) && is_array($table->rowclass)) {
        debugging('rowclass[] has been deprecated for html_table and should be replaced by rowclasses[]. please fix the code.');
        $newtable->rowclasses = $table->rowclass;
    }
    $output = html_writer::table($newtable);
    if ($return) {
        return $output;
    } else {
        echo $output;
        return true;
    }
}

function link_to_popup_window ($url, $name=null, $linkname=null, $height=400, $width=500, $title=null, $options=null, $return=false) {
    debugging('link_to_popup_window() has been removed. Please change your code to use $OUTPUT->action_link(). Please note popups are discouraged for accessibility reasons');

    return html_writer::link($url, $name);
}

function button_to_popup_window ($url, $name=null, $linkname=null,
                                 $height=400, $width=500, $title=null, $options=null, $return=false,
                                 $id=null, $class=null) {
    global $OUTPUT;

    debugging('button_to_popup_window() has been deprecated. Please change your code to use $OUTPUT->single_button().');

    if ($options == 'none') {
        $options = null;
    }

    if (empty($linkname)) {
        throw new coding_exception('A link must have a descriptive text value! See $OUTPUT->action_link() for usage.');
    }

    // Create a single_button object
    $form = new single_button($url, $linkname, 'post');
    $form->button->title = $title;
    $form->button->id = $id;

    // Parse the $options string
    $popupparams = array();
    if (!empty($options)) {
        $optionsarray = explode(',', $options);
        foreach ($optionsarray as $option) {
            if (strstr($option, '=')) {
                $parts = explode('=', $option);
                if ($parts[1] == '0') {
                    $popupparams[$parts[0]] = false;
                } else {
                    $popupparams[$parts[0]] = $parts[1];
                }
            } else {
                $popupparams[$option] = true;
            }
        }
    }

    if (!empty($height)) {
        $popupparams['height'] = $height;
    }
    if (!empty($width)) {
        $popupparams['width'] = $width;
    }

    $form->button->add_action(new popup_action('click', $url, $name, $popupparams));
    $output = $OUTPUT->render($form);

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_single_button($link, $options, $label='OK', $method='get', $notusedanymore='',
        $return=false, $tooltip='', $disabled = false, $jsconfirmmessage='', $formid = '') {
    global $OUTPUT;

    debugging('print_single_button() has been deprecated. Please change your code to use $OUTPUT->single_button().');

    // Cast $options to array
    $options = (array) $options;

    $button = new single_button(new moodle_url($link, $options), $label, $method, array('disabled'=>$disabled, 'title'=>$tooltip, 'id'=>$formid));

    if ($jsconfirmmessage) {
        $button->button->add_confirm_action($jsconfirmmessage);
    }

    $output = $OUTPUT->render($button);

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_spacer($height=1, $width=1, $br=true, $return=false) {
    global $CFG, $OUTPUT;

    debugging('print_spacer() has been deprecated. Please change your code to use $OUTPUT->spacer().');

    $output = $OUTPUT->spacer(array('height'=>$height, 'width'=>$width, 'br'=>$br));

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_file_picture($path, $courseid=0, $height='', $width='', $link='', $return=false) {
    throw new coding_exception('print_file_picture() has been deprecated since Moodle 2.0. Please use $OUTPUT->action_icon() instead.');
}

function print_user_picture($user, $courseid, $picture=NULL, $size=0, $return=false, $link=true, $target='', $alttext=true) {
    global $OUTPUT;

    debugging('print_user_picture() has been deprecated. Please change your code to use $OUTPUT->user_picture($user, array(\'courseid\'=>$courseid).');

    if (!is_object($user)) {
        $userid = $user;
        $user = new stdClass();
        $user->id = $userid;
    }

    if (empty($user->picture) and $picture) {
        $user->picture = $picture;
    }

    $options = array('size'=>$size, 'link'=>$link, 'alttext'=>$alttext, 'courseid'=>$courseid, 'popup'=>!empty($target));

    $output = $OUTPUT->user_picture($user, $options);

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_png() {
    throw new coding_exception('print_png() has been deprecated since Moodle 2.0. Please use $OUTPUT->pix_icon() instead.');
}


function print_textarea($usehtmleditor, $rows, $cols, $width, $height, $name, $value='', $obsolete=0, $return=false, $id='') {

    // Disabling because there is not yet a viable $OUTPUT option for cases when mforms can't be used
    // debugging('print_textarea() has been deprecated. You should be using mforms and the editor element.');

    global $CFG;

    $mincols = 65;
    $minrows = 10;
    $str = '';

    if ($id === '') {
        $id = 'edit-'.$name;
    }

    if ($usehtmleditor) {
        if ($height && ($rows < $minrows)) {
            $rows = $minrows;
        }
        if ($width && ($cols < $mincols)) {
            $cols = $mincols;
        }
    }

    if ($usehtmleditor) {
        editors_head_setup();
        $editor = editors_get_preferred_editor(FORMAT_HTML);
        $editor->use_editor($id, array('legacy'=>true));
    } else {
        $editorclass = '';
    }

    $str .= "\n".'<textarea class="form-textarea" id="'. $id .'" name="'. $name .'" rows="'. $rows .'" cols="'. $cols .'">'."\n";
    if ($usehtmleditor) {
        $str .= htmlspecialchars($value); // needed for editing of cleaned text!
    } else {
        $str .= s($value);
    }
    $str .= '</textarea>'."\n";

    if ($return) {
        return $str;
    }
    echo $str;
}


function helpbutton($page, $title, $module='moodle', $image=true, $linktext=false, $text='', $return=false, $imagetext='') {
    debugging('helpbutton() has been deprecated. Please change your code to use $OUTPUT->help_icon().');

    global $OUTPUT;

    $output = $OUTPUT->old_help_icon($page, $title, $module, $linktext);

    // hide image with CSS if needed

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function emoticonhelpbutton($form, $field, $return = false) {

    debugging('emoticonhelpbutton() was removed, new text editors will implement this feature');
}

function editorhelpbutton(){
    return '';

}

function editorshortcutshelpbutton() {

    global $CFG;
    //TODO: detect current editor and print correct info
/*    $imagetext = '<img src="' . $CFG->httpswwwroot . '/lib/editor/htmlarea/images/kbhelp.gif" alt="'.
        get_string('editorshortcutkeys').'" class="iconkbhelp" />';

    return helpbutton('editorshortcuts', get_string('editorshortcutkeys'), 'moodle', true, false, '', true, $imagetext);*/
    return '';
}


function print_arrow($direction='up', $strsort=null, $return=false) {
    // debugging('print_arrow() has been deprecated. Please change your code to use $OUTPUT->arrow().');

    global $OUTPUT;

    if (!in_array($direction, array('up', 'down', 'right', 'left', 'move'))) {
        return null;
    }

    $return = null;

    switch ($direction) {
        case 'up':
            $sortdir = 'asc';
            break;
        case 'down':
            $sortdir = 'desc';
            break;
        case 'move':
            $sortdir = 'asc';
            break;
        default:
            $sortdir = null;
            break;
    }

    // Prepare language string
    $strsort = '';
    if (empty($strsort) && !empty($sortdir)) {
        $strsort  = get_string('sort' . $sortdir, 'grades');
    }

    $return = ' <img src="'.$OUTPUT->pix_url('t/' . $direction) . '" alt="'.$strsort.'" /> ';

    if ($return) {
        return $return;
    } else {
        echo $return;
    }
}

function doc_link($path='', $text='', $iconpath='ignored') {
    global $CFG, $OUTPUT;

    debugging('doc_link() has been deprecated. Please change your code to use $OUTPUT->doc_link().');

    if (empty($CFG->docroot)) {
        return '';
    }

    return $OUTPUT->doc_link($path, $text);
}

function print_paging_bar($totalcount, $page, $perpage, $baseurl, $pagevar='page',$nocurr=false, $return=false) {
    global $OUTPUT;

    debugging('print_paging_bar() has been deprecated. Please change your code to use $OUTPUT->render($pagingbar).');

    if (empty($nocurr)) {
        debugging('the feature of parameter $nocurr has been removed from the paging_bar');
    }

    $pagingbar = new paging_bar($totalcount, $page, $perpage, $baseurl);
    $pagingbar->pagevar = $pagevar;
    $output = $OUTPUT->render($pagingbar);

    if ($return) {
        return $output;
    }

    echo $output;
    return true;
}

function notice_yesno($message, $linkyes, $linkno, $optionsyes=NULL, $optionsno=NULL, $methodyes='post', $methodno='post') {

    debugging('notice_yesno() has been deprecated. Please change your code to use $OUTPUT->confirm($message, $buttoncontinue, $buttoncancel).');

    global $OUTPUT;

    $buttoncontinue = new single_button(new moodle_url($linkyes, $optionsyes), get_string('yes'), $methodyes);
    $buttoncancel   = new single_button(new moodle_url($linkno, $optionsno), get_string('no'), $methodno);

    echo $OUTPUT->confirm($message, $buttoncontinue, $buttoncancel);
}

function print_scale_menu() {
    throw new coding_exception('print_scale_menu() has been deprecated since the Jurassic period. Get with the times!.');
}

function choose_from_menu ($options, $name, $selected='', $nothing='choose', $script='',
                           $nothingvalue='0', $return=false, $disabled=false, $tabindex=0,
                           $id='', $listbox=false, $multiple=false, $class='') {

    global $OUTPUT;
    debugging('choose_from_menu() has been deprecated. Please change your code to use html_writer::select().');

    if ($script) {
        debugging('The $script parameter has been deprecated. You must use component_actions instead', DEBUG_DEVELOPER);
    }
    $attributes = array();
    $attributes['disabled'] = $disabled ? 'disabled' : null;
    $attributes['tabindex'] = $tabindex ? $tabindex : null;
    $attributes['multiple'] = $multiple ? $multiple : null;
    $attributes['class'] = $class ? $class : null;
    $attributes['id'] = $id ? $id : null;

    $output = html_writer::select($options, $name, $selected, array($nothingvalue=>$nothing), $attributes);

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function choose_from_menu_yesno($name, $selected, $script = '', $return = false, $disabled = false, $tabindex = 0) {
    debugging('choose_from_menu_yesno() has been deprecated. Please change your code to use html_writer.');
    global $OUTPUT;

    if ($script) {
        debugging('The $script parameter has been deprecated. You must use component_actions instead', DEBUG_DEVELOPER);
    }

    $output = html_writer::select_yes_no($name, $selected, array('disabled'=>($disabled ? 'disabled' : null), 'tabindex'=>$tabindex));

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function choose_from_menu_nested($options,$name,$selected='',$nothing='choose',$script = '',
                                 $nothingvalue=0,$return=false,$disabled=false,$tabindex=0) {

    debugging('choose_from_menu_nested() has been removed. Please change your code to use html_writer::select().');
    global $OUTPUT;
}

function print_scale_menu_helpbutton($courseid, $scale, $return=false) {
    // debugging('print_scale_menu_helpbutton() has been deprecated. Please change your code to use $OUTPUT->help_scale($courseid, $scale).');
    global $OUTPUT;

    $output = $OUTPUT->help_icon_scale($courseid, $scale);

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}


function print_timer_selector($timelimit = 0, $unit = '', $name = 'timelimit', $return=false) {
    throw new coding_exception('print_timer_selector is completely removed. Please use html_writer instead');
}

function print_time_selector($hour, $minute, $currenttime=0, $step=5, $return=false) {
    debugging('print_time_selector() has been deprecated. Please change your code to use html_writer.');

    $hourselector = html_writer::select_time('hours', $hour, $currenttime);
    $minuteselector = html_writer::select_time('minutes', $minute, $currenttime, $step);

    $output = $hourselector . $$minuteselector;

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function print_date_selector($day, $month, $year, $currenttime=0, $return=false) {
    debugging('print_date_selector() has been deprecated. Please change your code to use html_writer.');

    $dayselector = html_writer::select_time('days', $day, $currenttime);
    $monthselector = html_writer::select_time('months', $month, $currenttime);
    $yearselector = html_writer::select_time('years', $year, $currenttime);

    $output = $dayselector . $monthselector . $yearselector;

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function popup_form($baseurl, $options, $formid, $selected='', $nothing='choose', $help='', $helptext='', $return=false,
    $targetwindow='self', $selectlabel='', $optionsextra=NULL, $submitvalue='', $disabled=false, $showbutton=false) {
    global $OUTPUT, $CFG;

    debugging('popup_form() has been deprecated. Please change your code to use $OUTPUT->single_select() or $OUTPUT->url_select().');

    if (empty($options)) {
        return '';
    }

    $urls = array();

    foreach ($options as $value=>$label) {
        $url = $baseurl.$value;
        $url = str_replace($CFG->wwwroot, '', $url);
        $url = str_replace('&amp;', '&', $url);
        $urls[$url] = $label;
        if ($selected == $value) {
            $active = $url;
        }
    }

    $nothing = $nothing ? array(''=>$nothing) : null;

    $select = new url_select($urls, $active, $nothing, $formid);
    $select->disabled = $disabled;

    $select->set_label($selectlabel);
    $select->set_old_help_icon($help, $helptext);

    $output = $OUTPUT->render($select);

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function close_window_button($name='closewindow', $return=false, $reloadopener = false) {
    global $OUTPUT;

    debugging('close_window_button() has been deprecated. Please change your code to use $OUTPUT->close_window_button().');
    $output = $OUTPUT->close_window_button(get_string($name));

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function choose_from_radio ($options, $name, $checked='', $return=false) {
    debugging('choose_from_radio() has been removed. Please change your code to use html_writer.');
}

function print_checkbox($name, $value, $checked = true, $label = '', $alt = '', $script='', $return=false) {

    // debugging('print_checkbox() has been deprecated. Please change your code to use html_writer::checkbox().');
    global $OUTPUT;

    if (!empty($script)) {
        debugging('The use of the $script param in print_checkbox has not been migrated into html_writer::checkbox().', DEBUG_DEVELOPER);
    }

    $output = html_writer::checkbox($name, $value, $checked, $label);

    if (empty($return)) {
        echo $output;
    } else {
        return $output;
    }

}


function print_textfield($name, $value, $alt = '', $size=50, $maxlength=0, $return=false) {
    debugging('print_textfield() has been deprecated. Please use mforms or html_writer.');

    if ($alt === '') {
        $alt = null;
    }

    $style = "width: {$size}px;";
    $attributes = array('type'=>'text', 'name'=>$name, 'alt'=>$alt, 'style'=>$style, 'value'=>$value);
    if ($maxlength) {
        $attributes['maxlength'] = $maxlength;
    }

    $output = html_writer::empty_tag('input', $attributes);

    if (empty($return)) {
        echo $output;
    } else {
        return $output;
    }
}


function print_heading_with_help($text, $helppage, $module='moodle', $icon=false, $return=false) {

    debugging('print_heading_with_help() has been deprecated. Please change your code to use $OUTPUT->heading().');

    global $OUTPUT;

    // Extract the src from $icon if it exists
    if (preg_match('/src="([^"]*)"/', $icon, $matches)) {
        $icon = $matches[1];
        $icon = new moodle_url($icon);
    } else {
        $icon = '';
    }

    $output = $OUTPUT->heading_with_help($text, $helppage, $module, $icon);

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function update_mymoodle_icon() {
    throw new coding_exception('update_mymoodle_icon() has been completely deprecated.');
}

function update_tag_button($tagid) {
    global $OUTPUT;
    debugging('update_tag_button() has been deprecated. Please change your code to use $OUTPUT->edit_button(moodle_url).');
    return $OUTPUT->edit_button(new moodle_url('/tag/index.php', array('id' => $tagid)));
}


function update_module_button($cmid, $ignored, $string) {
    global $CFG, $OUTPUT;

    // debugging('update_module_button() has been deprecated. Please change your code to use $OUTPUT->update_module_button().');

    //NOTE: DO NOT call new output method because it needs the module name we do not have here!

    if (has_capability('moodle/course:manageactivities', get_context_instance(CONTEXT_MODULE, $cmid))) {
        $string = get_string('updatethis', '', $string);

        $url = new moodle_url("$CFG->wwwroot/course/mod.php", array('update' => $cmid, 'return' => true, 'sesskey' => sesskey()));
        return $OUTPUT->single_button($url, $string);
    } else {
        return '';
    }
}

function update_categories_search_button($search,$page,$perpage) {
    throw new coding_exception('update_categories_search_button() has been completely deprecated.');
}

function print_user($user, $course, $messageselect=false, $return=false) {
    throw new coding_exception('print_user() has been completely deprecated. See user/index.php for new usage.');
}

function update_course_icon($courseid) {
    global $CFG, $OUTPUT;

    debugging('update_course_button() has been deprecated. Please change your code to use $OUTPUT->edit_button(moodle_url).');

    return $OUTPUT->edit_button(new moodle_url('/course/view.php', array('id' => $courseid)));
}

function print_navigation ($navigation, $separator=0, $return=false) {
    global $OUTPUT,$PAGE;

    # debugging('print_navigation has been deprecated please update your theme to use $OUTPUT->navbar() instead', DEBUG_DEVELOPER);

    $output = $OUTPUT->navbar();

    if ($return) {
        return $output;
    } else {
        echo $output;
    }
}

function build_navigation($extranavlinks, $cm = null) {
    global $CFG, $COURSE, $DB, $SITE, $PAGE;

    if (is_array($extranavlinks) && count($extranavlinks)>0) {
        # debugging('build_navigation() has been deprecated, please replace with $PAGE->navbar methods', DEBUG_DEVELOPER);
        foreach ($extranavlinks as $nav) {
            if (array_key_exists('name', $nav)) {
                if (array_key_exists('link', $nav) && !empty($nav['link'])) {
                    $link = $nav['link'];
                } else {
                    $link = null;
                }
                $PAGE->navbar->add($nav['name'],$link);
            }
        }
    }

    return(array('newnav' => true, 'navlinks' => array()));
}

function navmenu($course, $cm=NULL, $targetwindow='self') {
    // This function has been deprecated with the creation of the global nav in
    // moodle 2.0

    return '';
}

function switchroles_form($courseid) {
    debugging('switchroles_form() has been deprecated and replaced by an item in the global settings block');
    return '';
}

function admin_externalpage_print_header($focus='') {
    global $OUTPUT;

    debugging('admin_externalpage_print_header is deprecated. Please $OUTPUT->header() instead.', DEBUG_DEVELOPER);

    echo $OUTPUT->header();
}

function admin_externalpage_print_footer() {
// TODO Still 103 referernces in core code. Don't do debugging output yet.
    debugging('admin_externalpage_print_footer is deprecated. Please $OUTPUT->footer() instead.', DEBUG_DEVELOPER);
    global $OUTPUT;
    echo $OUTPUT->footer();
}



 function add_event($event) {
    global $CFG;
    require_once($CFG->dirroot.'/calendar/lib.php');
    $event = calendar_event::create($event);
    if ($event !== false) {
        return $event->id;
    }
    return false;
}

function update_event($event) {
    global $CFG;
    require_once($CFG->dirroot.'/calendar/lib.php');
    $event = (object)$event;
    $calendarevent = calendar_event::load($event->id);
    return $calendarevent->update($event);
}

function delete_event($id) {
    global $CFG;
    require_once($CFG->dirroot.'/calendar/lib.php');
    $event = calendar_event::load($id);
    return $event->delete();
}

function hide_event($event) {
    global $CFG;
    require_once($CFG->dirroot.'/calendar/lib.php');
    $event = new calendar_event($event);
    return $event->toggle_visibility(false);
}

function show_event($event) {
    global $CFG;
    require_once($CFG->dirroot.'/calendar/lib.php');
    $event = new calendar_event($event);
    return $event->toggle_visibility(true);
}