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view.php
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<?php
///////////////////////////////////////////////////////////////////////////
// //
// NOTICE OF COPYRIGHT //
// //
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
// http://moodle.org //
// //
// Copyright (C) 2005 Martin Dougiamas http://dougiamas.com //
// //
// This program 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 2 of the License, or //
// (at your option) any later version. //
// //
// This program 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: //
// //
// http://www.gnu.org/copyleft/gpl.html //
// //
///////////////////////////////////////////////////////////////////////////
require_once(__DIR__ . '/../../config.php');
require_once($CFG->dirroot . '/mod/data/locallib.php');
require_once($CFG->libdir . '/rsslib.php');
/// One of these is necessary!
$id = optional_param('id', 0, PARAM_INT); // course module id
$d = optional_param('d', 0, PARAM_INT); // database id
$rid = optional_param('rid', 0, PARAM_INT); //record id
$mode = optional_param('mode', '', PARAM_ALPHA); // Force the browse mode ('single')
$filter = optional_param('filter', 0, PARAM_BOOL);
// search filter will only be applied when $filter is true
$edit = optional_param('edit', -1, PARAM_BOOL);
$page = optional_param('page', 0, PARAM_INT);
/// These can be added to perform an action on a record
$approve = optional_param('approve', 0, PARAM_INT); //approval recordid
$disapprove = optional_param('disapprove', 0, PARAM_INT); // disapproval recordid
$delete = optional_param('delete', 0, PARAM_INT); //delete recordid
$multidelete = optional_param_array('delcheck', null, PARAM_INT);
$serialdelete = optional_param('serialdelete', null, PARAM_RAW);
if ($id) {
if (! $cm = get_coursemodule_from_id('data', $id)) {
print_error('invalidcoursemodule');
}
if (! $course = $DB->get_record('course', array('id'=>$cm->course))) {
print_error('coursemisconf');
}
if (! $data = $DB->get_record('data', array('id'=>$cm->instance))) {
print_error('invalidcoursemodule');
}
$record = NULL;
} else if ($rid) {
if (! $record = $DB->get_record('data_records', array('id'=>$rid))) {
print_error('invalidrecord', 'data');
}
if (! $data = $DB->get_record('data', array('id'=>$record->dataid))) {
print_error('invalidid', 'data');
}
if (! $course = $DB->get_record('course', array('id'=>$data->course))) {
print_error('coursemisconf');
}
if (! $cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
print_error('invalidcoursemodule');
}
} else { // We must have $d
if (! $data = $DB->get_record('data', array('id'=>$d))) {
print_error('invalidid', 'data');
}
if (! $course = $DB->get_record('course', array('id'=>$data->course))) {
print_error('coursemisconf');
}
if (! $cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
print_error('invalidcoursemodule');
}
$record = NULL;
}
require_course_login($course, true, $cm);
require_once($CFG->dirroot . '/comment/lib.php');
comment::init();
$context = context_module::instance($cm->id);
require_capability('mod/data:viewentry', $context);
/// If we have an empty Database then redirect because this page is useless without data
if (has_capability('mod/data:managetemplates', $context)) {
if (!$DB->record_exists('data_fields', array('dataid'=>$data->id))) { // Brand new database!
redirect($CFG->wwwroot.'/mod/data/field.php?d='.$data->id); // Redirect to field entry
}
}
/// Check further parameters that set browsing preferences
if (!isset($SESSION->dataprefs)) {
$SESSION->dataprefs = array();
}
if (!isset($SESSION->dataprefs[$data->id])) {
$SESSION->dataprefs[$data->id] = array();
$SESSION->dataprefs[$data->id]['search'] = '';
$SESSION->dataprefs[$data->id]['search_array'] = array();
$SESSION->dataprefs[$data->id]['sort'] = $data->defaultsort;
$SESSION->dataprefs[$data->id]['advanced'] = 0;
$SESSION->dataprefs[$data->id]['order'] = ($data->defaultsortdir == 0) ? 'ASC' : 'DESC';
}
// reset advanced form
if (!is_null(optional_param('resetadv', null, PARAM_RAW))) {
$SESSION->dataprefs[$data->id]['search_array'] = array();
// we need the redirect to cleanup the form state properly
redirect("view.php?id=$cm->id&mode=$mode&search=&advanced=1");
}
$advanced = optional_param('advanced', -1, PARAM_INT);
if ($advanced == -1) {
$advanced = $SESSION->dataprefs[$data->id]['advanced'];
} else {
if (!$advanced) {
// explicitly switched to normal mode - discard all advanced search settings
$SESSION->dataprefs[$data->id]['search_array'] = array();
}
$SESSION->dataprefs[$data->id]['advanced'] = $advanced;
}
$search_array = $SESSION->dataprefs[$data->id]['search_array'];
if (!empty($advanced)) {
$search = '';
//Added to ammend paging error. This error would occur when attempting to go from one page of advanced
//search results to another. All fields were reset in the page transfer, and there was no way of determining
//whether or not the user reset them. This would cause a blank search to execute whenever the user attempted
//to see any page of results past the first.
//This fix works as follows:
//$paging flag is set to false when page 0 of the advanced search results is viewed for the first time.
//Viewing any page of results after page 0 passes the false $paging flag though the URL (see line 523) and the
//execution falls through to the second condition below, allowing paging to be set to true.
//Paging remains true and keeps getting passed though the URL until a new search is performed
//(even if page 0 is revisited).
//A false $paging flag generates advanced search results based on the fields input by the user.
//A true $paging flag generates davanced search results from the $SESSION global.
$paging = optional_param('paging', NULL, PARAM_BOOL);
if($page == 0 && !isset($paging)) {
$paging = false;
}
else {
$paging = true;
}
// Now build the advanced search array.
list($search_array, $search) = data_build_search_array($data, $paging, $search_array);
$SESSION->dataprefs[$data->id]['search_array'] = $search_array; // Make it sticky.
} else {
$search = optional_param('search', $SESSION->dataprefs[$data->id]['search'], PARAM_NOTAGS);
//Paging variable not used for standard search. Set it to null.
$paging = NULL;
}
// Disable search filters if $filter is not true:
if (! $filter) {
$search = '';
}
$SESSION->dataprefs[$data->id]['search'] = $search; // Make it sticky
$sort = optional_param('sort', $SESSION->dataprefs[$data->id]['sort'], PARAM_INT);
$SESSION->dataprefs[$data->id]['sort'] = $sort; // Make it sticky
$order = (optional_param('order', $SESSION->dataprefs[$data->id]['order'], PARAM_ALPHA) == 'ASC') ? 'ASC': 'DESC';
$SESSION->dataprefs[$data->id]['order'] = $order; // Make it sticky
$oldperpage = get_user_preferences('data_perpage_'.$data->id, 10);
$perpage = optional_param('perpage', $oldperpage, PARAM_INT);
if ($perpage < 2) {
$perpage = 2;
}
if ($perpage != $oldperpage) {
set_user_preference('data_perpage_'.$data->id, $perpage);
}
// Completion and trigger events.
data_view($data, $course, $cm, $context);
$urlparams = array('d' => $data->id);
if ($record) {
$urlparams['rid'] = $record->id;
}
if ($page) {
$urlparams['page'] = $page;
}
if ($mode) {
$urlparams['mode'] = $mode;
}
if ($filter) {
$urlparams['filter'] = $filter;
}
// Initialize $PAGE, compute blocks
$PAGE->set_url('/mod/data/view.php', $urlparams);
if (($edit != -1) and $PAGE->user_allowed_editing()) {
$USER->editing = $edit;
}
$courseshortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
/// RSS and CSS and JS meta
$meta = '';
if (!empty($CFG->enablerssfeeds) && !empty($CFG->data_enablerssfeeds) && $data->rssarticles > 0) {
$rsstitle = $courseshortname . ': ' . format_string($data->name);
rss_add_http_header($context, 'mod_data', $data, $rsstitle);
}
if ($data->csstemplate) {
$PAGE->requires->css('/mod/data/css.php?d='.$data->id);
}
if ($data->jstemplate) {
$PAGE->requires->js('/mod/data/js.php?d='.$data->id, true);
}
/// Print the page header
// Note: MDL-19010 there will be further changes to printing header and blocks.
// The code will be much nicer than this eventually.
$title = $courseshortname.': ' . format_string($data->name);
if ($PAGE->user_allowed_editing()) {
// Change URL parameter and block display string value depending on whether editing is enabled or not
if ($PAGE->user_is_editing()) {
$urlediting = 'off';
$strediting = get_string('blockseditoff');
} else {
$urlediting = 'on';
$strediting = get_string('blocksediton');
}
$url = new moodle_url($CFG->wwwroot.'/mod/data/view.php', array('id' => $cm->id, 'edit' => $urlediting));
$PAGE->set_button($OUTPUT->single_button($url, $strediting));
}
if ($mode == 'asearch') {
$PAGE->navbar->add(get_string('search'));
}
$PAGE->force_settings_menu();
$PAGE->set_title($title);
$PAGE->set_heading($course->fullname);
echo $OUTPUT->header();
// Check to see if groups are being used here.
// We need the most up to date current group value. Make sure it is updated at this point.
$currentgroup = groups_get_activity_group($cm, true);
$groupmode = groups_get_activity_groupmode($cm);
$canmanageentries = has_capability('mod/data:manageentries', $context);
// Detect entries not approved yet and show hint instead of not found error.
if ($record and !data_can_view_record($data, $record, $currentgroup, $canmanageentries)) {
print_error('notapproved', 'data');
}
echo $OUTPUT->heading(format_string($data->name), 2);
// Do we need to show a link to the RSS feed for the records?
//this links has been Settings (database activity administration) block
/*if (!empty($CFG->enablerssfeeds) && !empty($CFG->data_enablerssfeeds) && $data->rssarticles > 0) {
echo '<div style="float:right;">';
rss_print_link($context->id, $USER->id, 'mod_data', $data->id, get_string('rsstype'));
echo '</div>';
echo '<div style="clear:both;"></div>';
}*/
if ($data->intro and empty($page) and empty($record) and $mode != 'single') {
$options = new stdClass();
$options->noclean = true;
}
echo $OUTPUT->box(format_module_intro('data', $data, $cm->id), 'generalbox', 'intro');
$returnurl = $CFG->wwwroot . '/mod/data/view.php?d='.$data->id.'&search='.s($search).'&sort='.s($sort).'&order='.s($order).'&';
groups_print_activity_menu($cm, $returnurl);
/// Delete any requested records
if ($delete && confirm_sesskey() && (data_user_can_manage_entry($delete, $data, $context))) {
if ($confirm = optional_param('confirm',0,PARAM_INT)) {
if (data_delete_record($delete, $data, $course->id, $cm->id)) {
echo $OUTPUT->notification(get_string('recorddeleted','data'), 'notifysuccess');
}
} else { // Print a confirmation page
$allnamefields = user_picture::fields('u');
// Remove the id from the string. This already exists in the sql statement.
$allnamefields = str_replace('u.id,', '', $allnamefields);
$dbparams = array($delete);
if ($deleterecord = $DB->get_record_sql("SELECT dr.*, $allnamefields
FROM {data_records} dr
JOIN {user} u ON dr.userid = u.id
WHERE dr.id = ?", $dbparams, MUST_EXIST)) { // Need to check this is valid.
if ($deleterecord->dataid == $data->id) { // Must be from this database
$deletebutton = new single_button(new moodle_url('/mod/data/view.php?d='.$data->id.'&delete='.$delete.'&confirm=1'), get_string('delete'), 'post');
echo $OUTPUT->confirm(get_string('confirmdeleterecord','data'),
$deletebutton, 'view.php?d='.$data->id);
$records[] = $deleterecord;
echo data_print_template('singletemplate', $records, $data, '', 0, true);
echo $OUTPUT->footer();
exit;
}
}
}
}
// Multi-delete.
if ($serialdelete) {
$multidelete = json_decode($serialdelete);
}
if ($multidelete && confirm_sesskey() && $canmanageentries) {
if ($confirm = optional_param('confirm', 0, PARAM_INT)) {
foreach ($multidelete as $value) {
data_delete_record($value, $data, $course->id, $cm->id);
}
} else {
$validrecords = array();
$recordids = array();
foreach ($multidelete as $value) {
$allnamefields = user_picture::fields('u');
// Remove the id from the string. This already exists in the sql statement.
$allnamefields = str_replace('u.id,', '', $allnamefields);
$dbparams = array('id' => $value);
if ($deleterecord = $DB->get_record_sql("SELECT dr.*, $allnamefields
FROM {data_records} dr
JOIN {user} u ON dr.userid = u.id
WHERE dr.id = ?", $dbparams)) { // Need to check this is valid.
if ($deleterecord->dataid == $data->id) { // Must be from this database.
$validrecords[] = $deleterecord;
$recordids[] = $deleterecord->id;
}
}
}
$serialiseddata = json_encode($recordids);
$submitactions = array('d' => $data->id, 'sesskey' => sesskey(), 'confirm' => '1', 'serialdelete' => $serialiseddata);
$action = new moodle_url('/mod/data/view.php', $submitactions);
$cancelurl = new moodle_url('/mod/data/view.php', array('d' => $data->id));
$deletebutton = new single_button($action, get_string('delete'));
echo $OUTPUT->confirm(get_string('confirmdeleterecords', 'data'), $deletebutton, $cancelurl);
echo data_print_template('listtemplate', $validrecords, $data, '', 0, false);
echo $OUTPUT->footer();
exit;
}
}
// If data activity closed dont let students in.
list($showactivity, $warnings) = data_get_time_availability_status($data, $canmanageentries);
if (!$showactivity) {
$reason = current(array_keys($warnings));
echo $OUTPUT->notification(get_string($reason, 'data', $warnings[$reason]));
}
if ($showactivity) {
// Print the tabs
if ($record or $mode == 'single') {
$currenttab = 'single';
}
elseif ($mode == 'singleteacher') {
$currenttab = 'singleteacher';
}
elseif($mode == 'asearch') {
$currenttab = 'asearch';
}
else {
$currenttab = 'list';
}
include('tabs.php');
if ($mode == 'asearch') {
$maxcount = 0;
data_print_preference_form($data, $perpage, $search, $sort, $order, $search_array, $advanced, $mode);
} else {
// Approve or disapprove any requested records
$approvecap = has_capability('mod/data:approve', $context);
if (($approve || $disapprove) && confirm_sesskey() && $approvecap) {
$newapproved = $approve ? true : false;
$recordid = $newapproved ? $approve : $disapprove;
if ($approverecord = $DB->get_record('data_records', array('id' => $recordid))) { // Need to check this is valid
if ($approverecord->dataid == $data->id) { // Must be from this database
data_approve_entry($approverecord->id, $newapproved);
$msgkey = $newapproved ? 'recordapproved' : 'recorddisapproved';
echo $OUTPUT->notification(get_string($msgkey, 'data'), 'notifysuccess');
}
}
}
$numentries = data_numentries($data);
/// Check the number of entries required against the number of entries already made (doesn't apply to teachers)
if ($data->entriesleft = data_get_entries_left_to_add($data, $numentries, $canmanageentries)) {
$strentrieslefttoadd = get_string('entrieslefttoadd', 'data', $data);
echo $OUTPUT->notification($strentrieslefttoadd);
}
/// Check the number of entries required before to view other participant's entries against the number of entries already made (doesn't apply to teachers)
$requiredentries_allowed = true;
if ($data->entrieslefttoview = data_get_entries_left_to_view($data, $numentries, $canmanageentries)) {
$strentrieslefttoaddtoview = get_string('entrieslefttoaddtoview', 'data', $data);
echo $OUTPUT->notification($strentrieslefttoaddtoview);
$requiredentries_allowed = false;
}
// Search for entries.
list($records, $maxcount, $totalcount, $page, $nowperpage, $sort, $mode) =
data_search_entries($data, $cm, $context, $mode, $currentgroup, $search, $sort, $order, $page, $perpage, $advanced, $search_array, $record);
// Advanced search form doesn't make sense for single (redirects list view).
if ($maxcount && $mode != 'single' && $mode != 'singleteacher') {
data_print_preference_form($data, $perpage, $search, $sort, $order, $search_array, $advanced, $mode);
}
if (empty($records)) {
if ($maxcount){
$a = new stdClass();
$a->max = $maxcount;
$a->reseturl = "view.php?id=$cm->id&mode=$mode&search=&advanced=0";
echo $OUTPUT->notification(get_string('foundnorecords','data', $a));
} else {
echo $OUTPUT->notification(get_string('norecords','data'));
}
} else {
// We have some records to print.
$url = new moodle_url('/mod/data/view.php', array('d' => $data->id, 'sesskey' => sesskey()));
echo html_writer::start_tag('form', array('action' => $url, 'method' => 'post'));
if ($maxcount != $totalcount) {
$a = new stdClass();
$a->num = $totalcount;
$a->max = $maxcount;
$a->reseturl = "view.php?id=$cm->id&mode=$mode&search=&advanced=0";
echo $OUTPUT->notification(get_string('foundrecords', 'data', $a), 'notifysuccess');
}
if ($mode == 'single') { // Single template
$baseurl = 'view.php?d=' . $data->id . '&mode=single&';
if (!empty($search)) {
$baseurl .= 'filter=1&';
}
if (!empty($page)) {
$baseurl .= 'page=' . $page;
}
echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
if (empty($data->singletemplate)){
echo $OUTPUT->notification(get_string('nosingletemplate','data'));
data_generate_default_template($data, 'singletemplate', 0, false, false);
}
//data_print_template() only adds ratings for singletemplate which is why we're attaching them here
//attach ratings to data records
require_once($CFG->dirroot.'/rating/lib.php');
if ($data->assessed != RATING_AGGREGATE_NONE) {
$ratingoptions = new stdClass;
$ratingoptions->context = $context;
$ratingoptions->component = 'mod_data';
$ratingoptions->ratingarea = 'entry';
$ratingoptions->items = $records;
$ratingoptions->aggregate = $data->assessed;//the aggregation method
$ratingoptions->scaleid = $data->scale;
$ratingoptions->userid = $USER->id;
$ratingoptions->returnurl = $CFG->wwwroot.'/mod/data/'.$baseurl;
$ratingoptions->assesstimestart = $data->assesstimestart;
$ratingoptions->assesstimefinish = $data->assesstimefinish;
$rm = new rating_manager();
$records = $rm->get_ratings($ratingoptions);
}
data_print_template('singletemplate', $records, $data, $search, $page, false, new moodle_url($baseurl));
echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
}
elseif ( $mode == 'singleteacher' && has_capability('moodle/course:update', $context) ) { // Single template
$baseurl = 'view.php?d=' . $data->id . '&mode=single&';
if (!empty($search)) {
$baseurl .= 'filter=1&';
}
if (!empty($page)) {
$baseurl .= 'page=' . $page;
}
echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
if (empty($data->singletemplateteacher)){
echo $OUTPUT->notification(get_string('nosingletemplate','data'));
data_generate_default_template($data, 'singletemplateteacher', 0, false, false);
}
//data_print_template() only adds ratings for singletemplate which is why we're attaching them here
//attach ratings to data records
require_once($CFG->dirroot.'/rating/lib.php');
if ($data->assessed != RATING_AGGREGATE_NONE) {
$ratingoptions = new stdClass;
$ratingoptions->context = $context;
$ratingoptions->component = 'mod_data';
$ratingoptions->ratingarea = 'entry';
$ratingoptions->items = $records;
$ratingoptions->aggregate = $data->assessed;//the aggregation method
$ratingoptions->scaleid = $data->scale;
$ratingoptions->userid = $USER->id;
$ratingoptions->returnurl = $CFG->wwwroot.'/mod/data/'.$baseurl;
$ratingoptions->assesstimestart = $data->assesstimestart;
$ratingoptions->assesstimefinish = $data->assesstimefinish;
$rm = new rating_manager();
$records = $rm->get_ratings($ratingoptions);
}
data_print_template('singletemplateteacher', $records, $data, $search, $page, false, new moodle_url($baseurl));
echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
}
else { // List template
$baseurl = 'view.php?d='.$data->id.'&';
//send the advanced flag through the URL so it is remembered while paging.
$baseurl .= 'advanced='.$advanced.'&';
if (!empty($search)) {
$baseurl .= 'filter=1&';
}
//pass variable to allow determining whether or not we are paging through results.
$baseurl .= 'paging='.$paging.'&';
echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
if (empty($data->listtemplate)){
echo $OUTPUT->notification(get_string('nolisttemplate','data'));
data_generate_default_template($data, 'listtemplate', 0, false, false);
}
echo $data->listtemplateheader;
data_print_template('listtemplate', $records, $data, $search, $page, false, new moodle_url($baseurl));
echo $data->listtemplatefooter;
echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
}
if ($mode != 'single' && $mode != 'singleteacher' && $canmanageentries) {
echo html_writer::empty_tag('input', array(
'type' => 'button',
'id' => 'checkall',
'value' => get_string('selectall'),
'class' => 'btn btn-secondary m-r-1'
));
echo html_writer::empty_tag('input', array(
'type' => 'button',
'id' => 'checknone',
'value' => get_string('deselectall'),
'class' => 'btn btn-secondary m-r-1'
));
echo html_writer::empty_tag('input', array(
'class' => 'form-submit',
'type' => 'submit',
'value' => get_string('deleteselected'),
'class' => 'btn btn-secondary m-r-1'
));
$module = array('name' => 'mod_data', 'fullpath' => '/mod/data/module.js');
$PAGE->requires->js_init_call('M.mod_data.init_view', null, false, $module);
}
echo html_writer::end_tag('form');
}
}
$search = trim($search);
if (empty($records)) {
$records = array();
}
// Check to see if we can export records to a portfolio. This is for exporting all records, not just the ones in the search.
if ($mode == '' && !empty($CFG->enableportfolios) && !empty($records)) {
$canexport = false;
// Exportallentries and exportentry are basically the same capability.
if (has_capability('mod/data:exportallentries', $context) || has_capability('mod/data:exportentry', $context)) {
$canexport = true;
} else if (has_capability('mod/data:exportownentry', $context) &&
$DB->record_exists('data_records', array('userid' => $USER->id))) {
$canexport = true;
}
if ($canexport) {
require_once($CFG->libdir . '/portfoliolib.php');
$button = new portfolio_add_button();
$button->set_callback_options('data_portfolio_caller', array('id' => $cm->id), 'mod_data');
if (data_portfolio_caller::has_files($data)) {
$button->set_formats(array(PORTFOLIO_FORMAT_RICHHTML, PORTFOLIO_FORMAT_LEAP2A)); // No plain html for us.
}
echo $button->to_html(PORTFOLIO_ADD_FULL_FORM);
}
}
}
echo $OUTPUT->footer();