mod/data/view.php

   1 <?php
   2 ///////////////////////////////////////////////////////////////////////////
   3 //                                                                       //
   4 // NOTICE OF COPYRIGHT                                                   //
   5 //                                                                       //
   6 // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   7 //          http://moodle.org                                            //
   8 //                                                                       //
   9 // Copyright (C) 2005 Martin Dougiamas  http://dougiamas.com             //
  10 //                                                                       //
  11 // This program is free software; you can redistribute it and/or modify  //
  12 // it under the terms of the GNU General Public License as published by  //
  13 // the Free Software Foundation; either version 2 of the License, or     //
  14 // (at your option) any later version.                                   //
  15 //                                                                       //
  16 // This program is distributed in the hope that it will be useful,       //
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  19 // GNU General Public License for more details:                          //
  20 //                                                                       //
  21 //          http://www.gnu.org/copyleft/gpl.html                         //
  22 //                                                                       //
  23 ///////////////////////////////////////////////////////////////////////////
  24
  25     require_once(__DIR__ . '/../../config.php');
  26     require_once($CFG->dirroot . '/mod/data/lib.php');
  27     require_once($CFG->libdir . '/rsslib.php');
  28     require_once($CFG->libdir . '/completionlib.php');
  29
  30 /// One of these is necessary!
  31     $id = optional_param('id', 0, PARAM_INT);  // course module id
  32     $d = optional_param('d', 0, PARAM_INT);   // database id
  33     $rid = optional_param('rid', 0, PARAM_INT);    //record id
  34     $mode = optional_param('mode', '', PARAM_ALPHA);    // Force the browse mode  ('single')
  35     $filter = optional_param('filter', 0, PARAM_BOOL);
  36     // search filter will only be applied when $filter is true
  37
  38     $edit = optional_param('edit', -1, PARAM_BOOL);
  39     $page = optional_param('page', 0, PARAM_INT);
  40 /// These can be added to perform an action on a record
  41     $approve = optional_param('approve', 0, PARAM_INT);    //approval recordid
  42     $disapprove = optional_param('disapprove', 0, PARAM_INT);    // disapproval recordid
  43     $delete = optional_param('delete', 0, PARAM_INT);    //delete recordid
  44     $multidelete = optional_param_array('delcheck', null, PARAM_INT);
  45     $serialdelete = optional_param('serialdelete', null, PARAM_RAW);
  46
  47     if ($id) {
  48         if (! $cm = get_coursemodule_from_id('data', $id)) {
  49             print_error('invalidcoursemodule');
  50         }
  51         if (! $course = $DB->get_record('course', array('id'=>$cm->course))) {
  52             print_error('coursemisconf');
  53         }
  54         if (! $data = $DB->get_record('data', array('id'=>$cm->instance))) {
  55             print_error('invalidcoursemodule');
  56         }
  57         $record = NULL;
  58
  59     } else if ($rid) {
  60         if (! $record = $DB->get_record('data_records', array('id'=>$rid))) {
  61             print_error('invalidrecord', 'data');
  62         }
  63         if (! $data = $DB->get_record('data', array('id'=>$record->dataid))) {
  64             print_error('invalidid', 'data');
  65         }
  66         if (! $course = $DB->get_record('course', array('id'=>$data->course))) {
  67             print_error('coursemisconf');
  68         }
  69         if (! $cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
  70             print_error('invalidcoursemodule');
  71         }
  72     } else {   // We must have $d
  73         if (! $data = $DB->get_record('data', array('id'=>$d))) {
  74             print_error('invalidid', 'data');
  75         }
  76         if (! $course = $DB->get_record('course', array('id'=>$data->course))) {
  77             print_error('coursemisconf');
  78         }
  79         if (! $cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
  80             print_error('invalidcoursemodule');
  81         }
  82         $record = NULL;
  83     }
  84
  85     require_course_login($course, true, $cm);
  86
  87     require_once($CFG->dirroot . '/comment/lib.php');
  88     comment::init();
  89
  90     $context = context_module::instance($cm->id);
  91     require_capability('mod/data:viewentry', $context);
  92
  93 /// If we have an empty Database then redirect because this page is useless without data
  94     if (has_capability('mod/data:managetemplates', $context)) {
  95         if (!$DB->record_exists('data_fields', array('dataid'=>$data->id))) {      // Brand new database!
  96             redirect($CFG->wwwroot.'/mod/data/field.php?d='.$data->id);  // Redirect to field entry
  97         }
  98     }
  99
 100
 101 /// Check further parameters that set browsing preferences
 102     if (!isset($SESSION->dataprefs)) {
 103         $SESSION->dataprefs = array();
 104     }
 105     if (!isset($SESSION->dataprefs[$data->id])) {
 106         $SESSION->dataprefs[$data->id] = array();
 107         $SESSION->dataprefs[$data->id]['search'] = '';
 108         $SESSION->dataprefs[$data->id]['search_array'] = array();
 109         $SESSION->dataprefs[$data->id]['sort'] = $data->defaultsort;
 110         $SESSION->dataprefs[$data->id]['advanced'] = 0;
 111         $SESSION->dataprefs[$data->id]['order'] = ($data->defaultsortdir == 0) ? 'ASC' : 'DESC';
 112     }
 113
 114     // reset advanced form
 115     if (!is_null(optional_param('resetadv', null, PARAM_RAW))) {
 116         $SESSION->dataprefs[$data->id]['search_array'] = array();
 117         // we need the redirect to cleanup the form state properly
 118         redirect("view.php?id=$cm->id&amp;mode=$mode&amp;search=&amp;advanced=1");
 119     }
 120
 121     $advanced = optional_param('advanced', -1, PARAM_INT);
 122     if ($advanced == -1) {
 123         $advanced = $SESSION->dataprefs[$data->id]['advanced'];
 124     } else {
 125         if (!$advanced) {
 126             // explicitly switched to normal mode - discard all advanced search settings
 127             $SESSION->dataprefs[$data->id]['search_array'] = array();
 128         }
 129         $SESSION->dataprefs[$data->id]['advanced'] = $advanced;
 130     }
 131
 132     $search_array = $SESSION->dataprefs[$data->id]['search_array'];
 133
 134     if (!empty($advanced)) {
 135         $search = '';
 136         $vals = array();
 137         $fields = $DB->get_records('data_fields', array('dataid'=>$data->id));
 138
 139         //Added to ammend paging error. This error would occur when attempting to go from one page of advanced
 140         //search results to another.  All fields were reset in the page transfer, and there was no way of determining
 141         //whether or not the user reset them.  This would cause a blank search to execute whenever the user attempted
 142         //to see any page of results past the first.
 143         //This fix works as follows:
 144         //$paging flag is set to false when page 0 of the advanced search results is viewed for the first time.
 145         //Viewing any page of results after page 0 passes the false $paging flag though the URL (see line 523) and the
 146         //execution falls through to the second condition below, allowing paging to be set to true.
 147         //Paging remains true and keeps getting passed though the URL until a new search is performed
 148         //(even if page 0 is revisited).
 149         //A false $paging flag generates advanced search results based on the fields input by the user.
 150         //A true $paging flag generates davanced search results from the $SESSION global.
 151
 152         $paging = optional_param('paging', NULL, PARAM_BOOL);
 153         if($page == 0 && !isset($paging)) {
 154             $paging = false;
 155         }
 156         else {
 157             $paging = true;
 158         }
 159         if (!empty($fields)) {
 160             foreach($fields as $field) {
 161                 $searchfield = data_get_field_from_id($field->id, $data);
 162                 //Get field data to build search sql with.  If paging is false, get from user.
 163                 //If paging is true, get data from $search_array which is obtained from the $SESSION (see line 116).
 164                 if(!$paging) {
 165                     $val = $searchfield->parse_search_field();
 166                 } else {
 167                     //Set value from session if there is a value @ the required index.
 168                     if (isset($search_array[$field->id])) {
 169                         $val = $search_array[$field->id]->data;
 170                     } else {             //If there is not an entry @ the required index, set value to blank.
 171                         $val = '';
 172                     }
 173                 }
 174                 if (!empty($val)) {
 175                     $search_array[$field->id] = new stdClass();
 176                     list($search_array[$field->id]->sql, $search_array[$field->id]->params) = $searchfield->generate_sql('c'.$field->id, $val);
 177                     $search_array[$field->id]->data = $val;
 178                     $vals[] = $val;
 179                 } else {
 180                     // clear it out
 181                     unset($search_array[$field->id]);
 182                 }
 183             }
 184         }
 185
 186         if (!$paging) {
 187             // name searching
 188             $fn = optional_param('u_fn', '', PARAM_NOTAGS);
 189             $ln = optional_param('u_ln', '', PARAM_NOTAGS);
 190         } else {
 191             $fn = isset($search_array[DATA_FIRSTNAME]) ? $search_array[DATA_FIRSTNAME]->data : '';
 192             $ln = isset($search_array[DATA_LASTNAME]) ? $search_array[DATA_LASTNAME]->data : '';
 193         }
 194         if (!empty($fn)) {
 195             $search_array[DATA_FIRSTNAME] = new stdClass();
 196             $search_array[DATA_FIRSTNAME]->sql    = '';
 197             $search_array[DATA_FIRSTNAME]->params = array();
 198             $search_array[DATA_FIRSTNAME]->field  = 'u.firstname';
 199             $search_array[DATA_FIRSTNAME]->data   = $fn;
 200             $vals[] = $fn;
 201         } else {
 202             unset($search_array[DATA_FIRSTNAME]);
 203         }
 204         if (!empty($ln)) {
 205             $search_array[DATA_LASTNAME] = new stdClass();
 206             $search_array[DATA_LASTNAME]->sql     = '';
 207             $search_array[DATA_LASTNAME]->params = array();
 208             $search_array[DATA_LASTNAME]->field   = 'u.lastname';
 209             $search_array[DATA_LASTNAME]->data    = $ln;
 210             $vals[] = $ln;
 211         } else {
 212             unset($search_array[DATA_LASTNAME]);
 213         }
 214
 215         $SESSION->dataprefs[$data->id]['search_array'] = $search_array;     // Make it sticky
 216
 217         // in case we want to switch to simple search later - there might be multiple values there ;-)
 218         if ($vals) {
 219             $val = reset($vals);
 220             if (is_string($val)) {
 221                 $search = $val;
 222             }
 223         }
 224
 225     } else {
 226         $search = optional_param('search', $SESSION->dataprefs[$data->id]['search'], PARAM_NOTAGS);
 227         //Paging variable not used for standard search. Set it to null.
 228         $paging = NULL;
 229     }
 230
 231     // Disable search filters if $filter is not true:
 232     if (! $filter) {
 233         $search = '';
 234     }
 235
 236     if (core_text::strlen($search) < 2) {
 237         $search = '';
 238     }
 239     $SESSION->dataprefs[$data->id]['search'] = $search;   // Make it sticky
 240
 241     $sort = optional_param('sort', $SESSION->dataprefs[$data->id]['sort'], PARAM_INT);
 242     $SESSION->dataprefs[$data->id]['sort'] = $sort;       // Make it sticky
 243
 244     $order = (optional_param('order', $SESSION->dataprefs[$data->id]['order'], PARAM_ALPHA) == 'ASC') ? 'ASC': 'DESC';
 245     $SESSION->dataprefs[$data->id]['order'] = $order;     // Make it sticky
 246
 247
 248     $oldperpage = get_user_preferences('data_perpage_'.$data->id, 10);
 249     $perpage = optional_param('perpage', $oldperpage, PARAM_INT);
 250
 251     if ($perpage < 2) {
 252         $perpage = 2;
 253     }
 254     if ($perpage != $oldperpage) {
 255         set_user_preference('data_perpage_'.$data->id, $perpage);
 256     }
 257
 258     $params = array(
 259         'context' => $context,
 260         'objectid' => $data->id
 261     );
 262     $event = \mod_data\event\course_module_viewed::create($params);
 263     $event->add_record_snapshot('course_modules', $cm);
 264     $event->add_record_snapshot('course', $course);
 265     $event->add_record_snapshot('data', $data);
 266     $event->trigger();
 267
 268     $urlparams = array('d' => $data->id);
 269     if ($record) {
 270         $urlparams['rid'] = $record->id;
 271     }
 272     if ($page) {
 273         $urlparams['page'] = $page;
 274     }
 275     if ($mode) {
 276         $urlparams['mode'] = $mode;
 277     }
 278     if ($filter) {
 279         $urlparams['filter'] = $filter;
 280     }
 281 // Initialize $PAGE, compute blocks
 282     $PAGE->set_url('/mod/data/view.php', $urlparams);
 283
 284     if (($edit != -1) and $PAGE->user_allowed_editing()) {
 285         $USER->editing = $edit;
 286     }
 287
 288     $courseshortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
 289
 290 /// RSS and CSS and JS meta
 291     $meta = '';
 292     if (!empty($CFG->enablerssfeeds) && !empty($CFG->data_enablerssfeeds) && $data->rssarticles > 0) {
 293         $rsstitle = $courseshortname . ': ' . format_string($data->name);
 294         rss_add_http_header($context, 'mod_data', $data, $rsstitle);
 295     }
 296     if ($data->csstemplate) {
 297         $PAGE->requires->css('/mod/data/css.php?d='.$data->id);
 298     }
 299     if ($data->jstemplate) {
 300         $PAGE->requires->js('/mod/data/js.php?d='.$data->id, true);
 301     }
 302
 303     // Mark as viewed
 304     $completion = new completion_info($course);
 305     $completion->set_module_viewed($cm);
 306
 307 /// Print the page header
 308     // Note: MDL-19010 there will be further changes to printing header and blocks.
 309     // The code will be much nicer than this eventually.
 310     $title = $courseshortname.': ' . format_string($data->name);
 311
 312     if ($PAGE->user_allowed_editing()) {
 313         // Change URL parameter and block display string value depending on whether editing is enabled or not
 314         if ($PAGE->user_is_editing()) {
 315             $urlediting = 'off';
 316             $strediting = get_string('blockseditoff');
 317         } else {
 318             $urlediting = 'on';
 319             $strediting = get_string('blocksediton');
 320         }
 321         $url = new moodle_url($CFG->wwwroot.'/mod/data/view.php', array('id' => $cm->id, 'edit' => $urlediting));
 322         $PAGE->set_button($OUTPUT->single_button($url, $strediting));
 323     }
 324
 325     if ($mode == 'asearch') {
 326         $PAGE->navbar->add(get_string('search'));
 327     }
 328
 329     $PAGE->set_title($title);
 330     $PAGE->set_heading($course->fullname);
 331
 332     echo $OUTPUT->header();
 333
 334     // Check to see if groups are being used here.
 335     // We need the most up to date current group value. Make sure it is updated at this point.
 336     $currentgroup = groups_get_activity_group($cm, true);
 337     $groupmode = groups_get_activity_groupmode($cm);
 338     $canmanageentries = has_capability('mod/data:manageentries', $context);
 339     // If a student is not part of a group and seperate groups is enabled, we don't
 340     // want them seeing all records.
 341     if ($currentgroup == 0 && $groupmode == 1 && !$canmanageentries) {
 342         $canviewallrecords = false;
 343     } else {
 344         $canviewallrecords = true;
 345     }
 346
 347     // detect entries not approved yet and show hint instead of not found error
 348     if ($record and $data->approval and !$record->approved and $record->userid != $USER->id and !$canmanageentries) {
 349         if (!$currentgroup or $record->groupid == $currentgroup or $record->groupid == 0) {
 350             print_error('notapproved', 'data');
 351         }
 352     }
 353
 354     echo $OUTPUT->heading(format_string($data->name), 2);
 355
 356     // Do we need to show a link to the RSS feed for the records?
 357     //this links has been Settings (database activity administration) block
 358     /*if (!empty($CFG->enablerssfeeds) && !empty($CFG->data_enablerssfeeds) && $data->rssarticles > 0) {
 359         echo '<div style="float:right;">';
 360         rss_print_link($context->id, $USER->id, 'mod_data', $data->id, get_string('rsstype'));
 361         echo '</div>';
 362         echo '<div style="clear:both;"></div>';
 363     }*/
 364
 365     if ($data->intro and empty($page) and empty($record) and $mode != 'single') {
 366         $options = new stdClass();
 367         $options->noclean = true;
 368     }
 369     echo $OUTPUT->box(format_module_intro('data', $data, $cm->id), 'generalbox', 'intro');
 370
 371     $returnurl = $CFG->wwwroot . '/mod/data/view.php?d='.$data->id.'&amp;search='.s($search).'&amp;sort='.s($sort).'&amp;order='.s($order).'&amp;';
 372     groups_print_activity_menu($cm, $returnurl);
 373
 374 /// Delete any requested records
 375
 376     if ($delete && confirm_sesskey() && (data_user_can_manage_entry($delete, $data, $context))) {
 377         if ($confirm = optional_param('confirm',0,PARAM_INT)) {
 378             if (data_delete_record($delete, $data, $course->id, $cm->id)) {
 379                 echo $OUTPUT->notification(get_string('recorddeleted','data'), 'notifysuccess');
 380             }
 381         } else {   // Print a confirmation page
 382             $allnamefields = user_picture::fields('u');
 383             // Remove the id from the string. This already exists in the sql statement.
 384             $allnamefields = str_replace('u.id,', '', $allnamefields);
 385             $dbparams = array($delete);
 386             if ($deleterecord = $DB->get_record_sql("SELECT dr.*, $allnamefields
 387                                                        FROM {data_records} dr
 388                                                             JOIN {user} u ON dr.userid = u.id
 389                                                       WHERE dr.id = ?", $dbparams, MUST_EXIST)) { // Need to check this is valid.
 390                 if ($deleterecord->dataid == $data->id) {                       // Must be from this database
 391                     $deletebutton = new single_button(new moodle_url('/mod/data/view.php?d='.$data->id.'&delete='.$delete.'&confirm=1'), get_string('delete'), 'post');
 392                     echo $OUTPUT->confirm(get_string('confirmdeleterecord','data'),
 393                             $deletebutton, 'view.php?d='.$data->id);
 394
 395                     $records[] = $deleterecord;
 396                     echo data_print_template('singletemplate', $records, $data, '', 0, true);
 397
 398                     echo $OUTPUT->footer();
 399                     exit;
 400                 }
 401             }
 402         }
 403     }
 404
 405
 406     // Multi-delete.
 407     if ($serialdelete) {
 408         $multidelete = json_decode($serialdelete);
 409     }
 410
 411     if ($multidelete && confirm_sesskey() && $canmanageentries) {
 412         if ($confirm = optional_param('confirm', 0, PARAM_INT)) {
 413             foreach ($multidelete as $value) {
 414                 data_delete_record($value, $data, $course->id, $cm->id);
 415             }
 416         } else {
 417             $validrecords = array();
 418             $recordids = array();
 419             foreach ($multidelete as $value) {
 420                 $allnamefields = user_picture::fields('u');
 421                 // Remove the id from the string. This already exists in the sql statement.
 422                 $allnamefields = str_replace('u.id,', '', $allnamefields);
 423                 $dbparams = array('id' => $value);
 424                 if ($deleterecord = $DB->get_record_sql("SELECT dr.*, $allnamefields
 425                                                            FROM {data_records} dr
 426                                                            JOIN {user} u ON dr.userid = u.id
 427                                                           WHERE dr.id = ?", $dbparams)) { // Need to check this is valid.
 428                     if ($deleterecord->dataid == $data->id) {  // Must be from this database.
 429                         $validrecords[] = $deleterecord;
 430                         $recordids[] = $deleterecord->id;
 431                     }
 432                 }
 433             }
 434             $serialiseddata = json_encode($recordids);
 435             $submitactions = array('d' => $data->id, 'sesskey' => sesskey(), 'confirm' => '1', 'serialdelete' => $serialiseddata);
 436             $action = new moodle_url('/mod/data/view.php', $submitactions);
 437             $cancelurl = new moodle_url('/mod/data/view.php', array('d' => $data->id));
 438             $deletebutton = new single_button($action, get_string('delete'));
 439             echo $OUTPUT->confirm(get_string('confirmdeleterecords', 'data'), $deletebutton, $cancelurl);
 440             echo data_print_template('listtemplate', $validrecords, $data, '', 0, false);
 441             echo $OUTPUT->footer();
 442             exit;
 443         }
 444     }
 445
 446
 447 //if data activity closed dont let students in
 448 $showactivity = true;
 449 if (!$canmanageentries) {
 450     $timenow = time();
 451     if (!empty($data->timeavailablefrom) && $data->timeavailablefrom > $timenow) {
 452         echo $OUTPUT->notification(get_string('notopenyet', 'data', userdate($data->timeavailablefrom)));
 453         $showactivity = false;
 454     } else if (!empty($data->timeavailableto) && $timenow > $data->timeavailableto) {
 455         echo $OUTPUT->notification(get_string('expired', 'data', userdate($data->timeavailableto)));
 456         $showactivity = false;
 457     }
 458 }
 459
 460 if ($showactivity) {
 461     // Print the tabs
 462     if ($record or $mode == 'single') {
 463         $currenttab = 'single';
 464     } elseif($mode == 'asearch') {
 465         $currenttab = 'asearch';
 466     }
 467     else {
 468         $currenttab = 'list';
 469     }
 470     include('tabs.php');
 471
 472     if ($mode == 'asearch') {
 473         $maxcount = 0;
 474         data_print_preference_form($data, $perpage, $search, $sort, $order, $search_array, $advanced, $mode);
 475
 476     } else {
 477         // Approve or disapprove any requested records
 478         $params = array(); // named params array
 479
 480         $approvecap = has_capability('mod/data:approve', $context);
 481
 482         if (($approve || $disapprove) && confirm_sesskey() && $approvecap) {
 483             $newapproved = $approve ? 1 : 0;
 484             $recordid = $newapproved ? $approve : $disapprove;
 485             if ($approverecord = $DB->get_record('data_records', array('id' => $recordid))) {   // Need to check this is valid
 486                 if ($approverecord->dataid == $data->id) {                       // Must be from this database
 487                     $newrecord = new stdClass();
 488                     $newrecord->id = $approverecord->id;
 489                     $newrecord->approved = $newapproved;
 490                     $DB->update_record('data_records', $newrecord);
 491                     $msgkey = $newapproved ? 'recordapproved' : 'recorddisapproved';
 492                     echo $OUTPUT->notification(get_string($msgkey, 'data'), 'notifysuccess');
 493                 }
 494             }
 495         }
 496
 497          $numentries = data_numentries($data);
 498     /// Check the number of entries required against the number of entries already made (doesn't apply to teachers)
 499         if ($data->requiredentries > 0 && $numentries < $data->requiredentries && !$canmanageentries) {
 500             $data->entriesleft = $data->requiredentries - $numentries;
 501             $strentrieslefttoadd = get_string('entrieslefttoadd', 'data', $data);
 502             echo $OUTPUT->notification($strentrieslefttoadd);
 503         }
 504
 505     /// 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)
 506         $requiredentries_allowed = true;
 507         if ($data->requiredentriestoview > 0 && $numentries < $data->requiredentriestoview && !$canmanageentries) {
 508             $data->entrieslefttoview = $data->requiredentriestoview - $numentries;
 509             $strentrieslefttoaddtoview = get_string('entrieslefttoaddtoview', 'data', $data);
 510             echo $OUTPUT->notification($strentrieslefttoaddtoview);
 511             $requiredentries_allowed = false;
 512         }
 513
 514         // Initialise the first group of params for advanced searches.
 515         $initialparams   = array();
 516
 517     /// setup group and approve restrictions
 518         if (!$approvecap && $data->approval) {
 519             if (isloggedin()) {
 520                 $approveselect = ' AND (r.approved=1 OR r.userid=:myid1) ';
 521                 $params['myid1'] = $USER->id;
 522                 $initialparams['myid1'] = $params['myid1'];
 523             } else {
 524                 $approveselect = ' AND r.approved=1 ';
 525             }
 526         } else {
 527             $approveselect = ' ';
 528         }
 529
 530         if ($currentgroup) {
 531             $groupselect = " AND (r.groupid = :currentgroup OR r.groupid = 0)";
 532             $params['currentgroup'] = $currentgroup;
 533             $initialparams['currentgroup'] = $params['currentgroup'];
 534         } else {
 535             if ($canviewallrecords) {
 536                 $groupselect = ' ';
 537             } else {
 538                 // If separate groups are enabled and the user isn't in a group or
 539                 // a teacher, manager, admin etc, then just show them entries for 'All participants'.
 540                 $groupselect = " AND r.groupid = 0";
 541             }
 542         }
 543
 544         // Init some variables to be used by advanced search
 545         $advsearchselect = '';
 546         $advwhere        = '';
 547         $advtables       = '';
 548         $advparams       = array();
 549         // This is used for the initial reduction of advanced search results with required entries.
 550         $entrysql        = '';
 551         $namefields = user_picture::fields('u');
 552         // Remove the id from the string. This already exists in the sql statement.
 553         $namefields = str_replace('u.id,', '', $namefields);
 554
 555     /// Find the field we are sorting on
 556         if ($sort <= 0 or !$sortfield = data_get_field_from_id($sort, $data)) {
 557
 558             switch ($sort) {
 559                 case DATA_LASTNAME:
 560                     $ordering = "u.lastname $order, u.firstname $order";
 561                     break;
 562                 case DATA_FIRSTNAME:
 563                     $ordering = "u.firstname $order, u.lastname $order";
 564                     break;
 565                 case DATA_APPROVED:
 566                     $ordering = "r.approved $order, r.timecreated $order";
 567                     break;
 568                 case DATA_TIMEMODIFIED:
 569                     $ordering = "r.timemodified $order";
 570                     break;
 571                 case DATA_TIMEADDED:
 572                 default:
 573                     $sort     = 0;
 574                     $ordering = "r.timecreated $order";
 575             }
 576
 577             $what = ' DISTINCT r.id, r.approved, r.timecreated, r.timemodified, r.userid, ' . $namefields;
 578             $count = ' COUNT(DISTINCT c.recordid) ';
 579             $tables = '{data_content} c,{data_records} r, {user} u ';
 580             $where =  'WHERE c.recordid = r.id
 581                          AND r.dataid = :dataid
 582                          AND r.userid = u.id ';
 583             $params['dataid'] = $data->id;
 584             $sortorder = " ORDER BY $ordering, r.id $order";
 585             $searchselect = '';
 586
 587             // If requiredentries is not reached, only show current user's entries
 588             if (!$requiredentries_allowed) {
 589                 $where .= ' AND u.id = :myid2 ';
 590                 $entrysql = ' AND r.userid = :myid3 ';
 591                 $params['myid2'] = $USER->id;
 592                 $initialparams['myid3'] = $params['myid2'];
 593             }
 594
 595             if (!empty($advanced)) {                                                  //If advanced box is checked.
 596                 $i = 0;
 597                 foreach($search_array as $key => $val) {                              //what does $search_array hold?
 598                     if ($key == DATA_FIRSTNAME or $key == DATA_LASTNAME) {
 599                         $i++;
 600                         $searchselect .= " AND ".$DB->sql_like($val->field, ":search_flname_$i", false);
 601                         $params['search_flname_'.$i] = "%$val->data%";
 602                         continue;
 603                     }
 604                     $advtables .= ', {data_content} c'.$key.' ';
 605                     $advwhere .= ' AND c'.$key.'.recordid = r.id';
 606                     $advsearchselect .= ' AND ('.$val->sql.') ';
 607                     $advparams = array_merge($advparams, $val->params);
 608                 }
 609             } else if ($search) {
 610                 $searchselect = " AND (".$DB->sql_like('c.content', ':search1', false)."
 611                                   OR ".$DB->sql_like('u.firstname', ':search2', false)."
 612                                   OR ".$DB->sql_like('u.lastname', ':search3', false)." ) ";
 613                 $params['search1'] = "%$search%";
 614                 $params['search2'] = "%$search%";
 615                 $params['search3'] = "%$search%";
 616             } else {
 617                 $searchselect = ' ';
 618             }
 619
 620         } else {
 621
 622             $sortcontent = $DB->sql_compare_text('c.' . $sortfield->get_sort_field());
 623             $sortcontentfull = $sortfield->get_sort_sql($sortcontent);
 624
 625             $what = ' DISTINCT r.id, r.approved, r.timecreated, r.timemodified, r.userid, ' . $namefields . ',
 626                     ' . $sortcontentfull . ' AS sortorder ';
 627             $count = ' COUNT(DISTINCT c.recordid) ';
 628             $tables = '{data_content} c, {data_records} r, {user} u ';
 629             $where =  'WHERE c.recordid = r.id
 630                          AND r.dataid = :dataid
 631                          AND r.userid = u.id ';
 632             if (!$advanced) {
 633                 $where .=  'AND c.fieldid = :sort';
 634             }
 635             $params['dataid'] = $data->id;
 636             $params['sort'] = $sort;
 637             $sortorder = ' ORDER BY sortorder '.$order.' , r.id ASC ';
 638             $searchselect = '';
 639
 640             // If requiredentries is not reached, only show current user's entries
 641             if (!$requiredentries_allowed) {
 642                 $where .= ' AND u.id = :myid2';
 643                 $entrysql = ' AND r.userid = :myid3';
 644                 $params['myid2'] = $USER->id;
 645                 $initialparams['myid3'] = $params['myid2'];
 646             }
 647             $i = 0;
 648             if (!empty($advanced)) {                                                  //If advanced box is checked.
 649                 foreach($search_array as $key => $val) {                              //what does $search_array hold?
 650                     if ($key == DATA_FIRSTNAME or $key == DATA_LASTNAME) {
 651                         $i++;
 652                         $searchselect .= " AND ".$DB->sql_like($val->field, ":search_flname_$i", false);
 653                         $params['search_flname_'.$i] = "%$val->data%";
 654                         continue;
 655                     }
 656                     $advtables .= ', {data_content} c'.$key.' ';
 657                     $advwhere .= ' AND c'.$key.'.recordid = r.id AND c'.$key.'.fieldid = '.$key;
 658                     $advsearchselect .= ' AND ('.$val->sql.') ';
 659                     $advparams = array_merge($advparams, $val->params);
 660                 }
 661             } else if ($search) {
 662                 $searchselect = " AND (".$DB->sql_like('c.content', ':search1', false)." OR ".$DB->sql_like('u.firstname', ':search2', false)." OR ".$DB->sql_like('u.lastname', ':search3', false)." ) ";
 663                 $params['search1'] = "%$search%";
 664                 $params['search2'] = "%$search%";
 665                 $params['search3'] = "%$search%";
 666             } else {
 667                 $searchselect = ' ';
 668             }
 669         }
 670
 671     /// To actually fetch the records
 672
 673         $fromsql    = "FROM $tables $advtables $where $advwhere $groupselect $approveselect $searchselect $advsearchselect";
 674         $allparams  = array_merge($params, $advparams);
 675
 676         // Provide initial sql statements and parameters to reduce the number of total records.
 677         $initialselect = $groupselect . $approveselect . $entrysql;
 678
 679         $recordids = data_get_all_recordids($data->id, $initialselect, $initialparams);
 680         $newrecordids = data_get_advance_search_ids($recordids, $search_array, $data->id);
 681         $totalcount = count($newrecordids);
 682         $selectdata = $where . $groupselect . $approveselect;
 683
 684         if (!empty($advanced)) {
 685             $advancedsearchsql = data_get_advanced_search_sql($sort, $data, $newrecordids, $selectdata, $sortorder);
 686             $sqlselect = $advancedsearchsql['sql'];
 687             $allparams = array_merge($allparams, $advancedsearchsql['params']);
 688         } else {
 689             $sqlselect  = "SELECT $what $fromsql $sortorder";
 690         }
 691
 692         /// Work out the paging numbers and counts
 693         if (empty($searchselect) && empty($advsearchselect)) {
 694             $maxcount = $totalcount;
 695         } else {
 696             $maxcount = count($recordids);
 697         }
 698
 699         if ($record) {     // We need to just show one, so where is it in context?
 700             $nowperpage = 1;
 701             $mode = 'single';
 702             $page = 0;
 703             // TODO MDL-33797 - Reduce this or consider redesigning the paging system.
 704             if ($allrecordids = $DB->get_fieldset_sql($sqlselect, $allparams)) {
 705                 $page = (int)array_search($record->id, $allrecordids);
 706                 unset($allrecordids);
 707             }
 708         } else if ($mode == 'single') {  // We rely on ambient $page settings
 709             $nowperpage = 1;
 710
 711         } else {
 712             $nowperpage = $perpage;
 713         }
 714
 715         // Advanced search form doesn't make sense for single (redirects list view).
 716         if ($maxcount && $mode != 'single') {
 717             data_print_preference_form($data, $perpage, $search, $sort, $order, $search_array, $advanced, $mode);
 718         }
 719
 720     /// Get the actual records
 721
 722         if (!$records = $DB->get_records_sql($sqlselect, $allparams, $page * $nowperpage, $nowperpage)) {
 723             // Nothing to show!
 724             if ($record) {         // Something was requested so try to show that at least (bug 5132)
 725                 if ($canmanageentries || empty($data->approval) ||
 726                          $record->approved || (isloggedin() && $record->userid == $USER->id)) {
 727                     if (!$currentgroup || $record->groupid == $currentgroup || $record->groupid == 0) {
 728                         // OK, we can show this one
 729                         $records = array($record->id => $record);
 730                         $totalcount = 1;
 731                     }
 732                 }
 733             }
 734         }
 735
 736         if (empty($records)) {
 737             if ($maxcount){
 738                 $a = new stdClass();
 739                 $a->max = $maxcount;
 740                 $a->reseturl = "view.php?id=$cm->id&amp;mode=$mode&amp;search=&amp;advanced=0";
 741                 echo $OUTPUT->notification(get_string('foundnorecords','data', $a));
 742             } else {
 743                 echo $OUTPUT->notification(get_string('norecords','data'));
 744             }
 745
 746         } else {
 747             //  We have some records to print.
 748             $url = new moodle_url('/mod/data/view.php', array('d' => $data->id, 'sesskey' => sesskey()));
 749             echo html_writer::start_tag('form', array('action' => $url, 'method' => 'post'));
 750
 751             if ($maxcount != $totalcount) {
 752                 $a = new stdClass();
 753                 $a->num = $totalcount;
 754                 $a->max = $maxcount;
 755                 $a->reseturl = "view.php?id=$cm->id&amp;mode=$mode&amp;search=&amp;advanced=0";
 756                 echo $OUTPUT->notification(get_string('foundrecords', 'data', $a), 'notifysuccess');
 757             }
 758
 759             if ($mode == 'single') { // Single template
 760                 $baseurl = 'view.php?d=' . $data->id . '&mode=single&';
 761                 if (!empty($search)) {
 762                     $baseurl .= 'filter=1&';
 763                 }
 764                 if (!empty($page)) {
 765                     $baseurl .= 'page=' . $page;
 766                 }
 767                 echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
 768
 769                 if (empty($data->singletemplate)){
 770                     echo $OUTPUT->notification(get_string('nosingletemplate','data'));
 771                     data_generate_default_template($data, 'singletemplate', 0, false, false);
 772                 }
 773
 774                 //data_print_template() only adds ratings for singletemplate which is why we're attaching them here
 775                 //attach ratings to data records
 776                 require_once($CFG->dirroot.'/rating/lib.php');
 777                 if ($data->assessed != RATING_AGGREGATE_NONE) {
 778                     $ratingoptions = new stdClass;
 779                     $ratingoptions->context = $context;
 780                     $ratingoptions->component = 'mod_data';
 781                     $ratingoptions->ratingarea = 'entry';
 782                     $ratingoptions->items = $records;
 783                     $ratingoptions->aggregate = $data->assessed;//the aggregation method
 784                     $ratingoptions->scaleid = $data->scale;
 785                     $ratingoptions->userid = $USER->id;
 786                     $ratingoptions->returnurl = $CFG->wwwroot.'/mod/data/'.$baseurl;
 787                     $ratingoptions->assesstimestart = $data->assesstimestart;
 788                     $ratingoptions->assesstimefinish = $data->assesstimefinish;
 789
 790                     $rm = new rating_manager();
 791                     $records = $rm->get_ratings($ratingoptions);
 792                 }
 793
 794                 data_print_template('singletemplate', $records, $data, $search, $page, false, new moodle_url($baseurl));
 795
 796                 echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
 797
 798             } else {                                  // List template
 799                 $baseurl = 'view.php?d='.$data->id.'&amp;';
 800                 //send the advanced flag through the URL so it is remembered while paging.
 801                 $baseurl .= 'advanced='.$advanced.'&amp;';
 802                 if (!empty($search)) {
 803                     $baseurl .= 'filter=1&amp;';
 804                 }
 805                 //pass variable to allow determining whether or not we are paging through results.
 806                 $baseurl .= 'paging='.$paging.'&amp;';
 807
 808                 echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
 809
 810                 if (empty($data->listtemplate)){
 811                     echo $OUTPUT->notification(get_string('nolisttemplate','data'));
 812                     data_generate_default_template($data, 'listtemplate', 0, false, false);
 813                 }
 814                 echo $data->listtemplateheader;
 815                 data_print_template('listtemplate', $records, $data, $search, $page, false, new moodle_url($baseurl));
 816                 echo $data->listtemplatefooter;
 817
 818                 echo $OUTPUT->paging_bar($totalcount, $page, $nowperpage, $baseurl);
 819             }
 820
 821             if ($mode != 'single' && $canmanageentries) {
 822                 echo html_writer::empty_tag('input', array(
 823                         'type' => 'button',
 824                         'id' => 'checkall',
 825                         'value' => get_string('selectall'),
 826                     ));
 827                 echo html_writer::empty_tag('input', array(
 828                         'type' => 'button',
 829                         'id' => 'checknone',
 830                         'value' => get_string('deselectall'),
 831                     ));
 832                 echo html_writer::empty_tag('input', array(
 833                         'class' => 'form-submit',
 834                         'type' => 'submit',
 835                         'value' => get_string('deleteselected'),
 836                     ));
 837
 838                 $module = array('name' => 'mod_data', 'fullpath' => '/mod/data/module.js');
 839                 $PAGE->requires->js_init_call('M.mod_data.init_view', null, false, $module);
 840             }
 841
 842             echo html_writer::end_tag('form');
 843         }
 844     }
 845
 846     $search = trim($search);
 847     if (empty($records)) {
 848         $records = array();
 849     }
 850
 851     // Check to see if we can export records to a portfolio. This is for exporting all records, not just the ones in the search.
 852     if ($mode == '' && !empty($CFG->enableportfolios) && !empty($records)) {
 853         $canexport = false;
 854         // Exportallentries and exportentry are basically the same capability.
 855         if (has_capability('mod/data:exportallentries', $context) || has_capability('mod/data:exportentry', $context)) {
 856             $canexport = true;
 857         } else if (has_capability('mod/data:exportownentry', $context) &&
 858                 $DB->record_exists('data_records', array('userid' => $USER->id))) {
 859             $canexport = true;
 860         }
 861         if ($canexport) {
 862             require_once($CFG->libdir . '/portfoliolib.php');
 863             $button = new portfolio_add_button();
 864             $button->set_callback_options('data_portfolio_caller', array('id' => $cm->id), 'mod_data');
 865             if (data_portfolio_caller::has_files($data)) {
 866                 $button->set_formats(array(PORTFOLIO_FORMAT_RICHHTML, PORTFOLIO_FORMAT_LEAP2A)); // No plain html for us.
 867             }
 868             echo $button->to_html(PORTFOLIO_ADD_FULL_FORM);
 869         }
 870     }
 871 }
 872
 873 echo $OUTPUT->footer();