3 // This file is part of Moodle - http://moodle.org/
5 // Moodle is free software: you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation, either version 3 of the License, or
8 // (at your option) any later version.
10 // Moodle is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
20 * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
21 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
25 define ('DATA_MAX_ENTRIES', 50);
26 define ('DATA_PERPAGE_SINGLE', 1);
28 define ('DATA_FIRSTNAME', -1);
29 define ('DATA_LASTNAME', -2);
30 define ('DATA_APPROVED', -3);
31 define ('DATA_TIMEADDED', 0);
32 define ('DATA_TIMEMODIFIED', -4);
34 define ('DATA_CAP_EXPORT', 'mod/data:viewalluserpresets');
36 define('DATA_PRESET_COMPONENT', 'mod_data');
37 define('DATA_PRESET_FILEAREA', 'site_presets');
38 define('DATA_PRESET_CONTEXT', SYSCONTEXTID);
40 // Users having assigned the default role "Non-editing teacher" can export database records
41 // Using the mod/data capability "viewalluserpresets" existing in Moodle 1.9.x.
42 // In Moodle >= 2, new roles may be introduced and used instead.
46 * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
47 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
49 class data_field_base { // Base class for Database Field Types (see field/*/field.class.php)
51 /** @var string Subclasses must override the type with their name */
52 var $type = 'unknown';
53 /** @var object The database object that this field belongs to */
55 /** @var object The field object itself, if we know it */
57 /** @var int Width of the icon for this fieldtype */
59 /** @var int Width of the icon for this fieldtype */
61 /** @var object course module or cmifno */
63 /** @var object activity context */
67 * Constructor function
70 * @uses CONTEXT_MODULE
75 function __construct($field=0, $data=0, $cm=0) { // Field or data or both, each can be id or object
78 if (empty($field) && empty($data)) {
79 print_error('missingfield', 'data');
83 if (is_object($field)) {
84 $this->field = $field; // Programmer knows what they are doing, we hope
85 } else if (!$this->field = $DB->get_record('data_fields', array('id'=>$field))) {
86 print_error('invalidfieldid', 'data');
89 if (!$this->data = $DB->get_record('data', array('id'=>$this->field->dataid))) {
90 print_error('invalidid', 'data');
95 if (empty($this->data)) { // We need to define this properly
97 if (is_object($data)) {
98 $this->data = $data; // Programmer knows what they are doing, we hope
99 } else if (!$this->data = $DB->get_record('data', array('id'=>$data))) {
100 print_error('invalidid', 'data');
102 } else { // No way to define it!
103 print_error('missingdata', 'data');
110 $this->cm = get_coursemodule_from_instance('data', $this->data->id);
113 if (empty($this->field)) { // We need to define some default values
114 $this->define_default_field();
117 $this->context = get_context_instance(CONTEXT_MODULE, $this->cm->id);
122 * This field just sets up a default field object
126 function define_default_field() {
128 if (empty($this->data->id)) {
129 echo $OUTPUT->notification('Programmer error: dataid not defined in field class');
131 $this->field = new stdClass();
132 $this->field->id = 0;
133 $this->field->dataid = $this->data->id;
134 $this->field->type = $this->type;
135 $this->field->param1 = '';
136 $this->field->param2 = '';
137 $this->field->param3 = '';
138 $this->field->name = '';
139 $this->field->description = '';
145 * Set up the field object according to data in an object. Now is the time to clean it!
149 function define_field($data) {
150 $this->field->type = $this->type;
151 $this->field->dataid = $this->data->id;
153 $this->field->name = trim($data->name);
154 $this->field->description = trim($data->description);
156 if (isset($data->param1)) {
157 $this->field->param1 = trim($data->param1);
159 if (isset($data->param2)) {
160 $this->field->param2 = trim($data->param2);
162 if (isset($data->param3)) {
163 $this->field->param3 = trim($data->param3);
165 if (isset($data->param4)) {
166 $this->field->param4 = trim($data->param4);
168 if (isset($data->param5)) {
169 $this->field->param5 = trim($data->param5);
176 * Insert a new field in the database
177 * We assume the field object is already defined as $this->field
182 function insert_field() {
185 if (empty($this->field)) {
186 echo $OUTPUT->notification('Programmer error: Field has not been defined yet! See define_field()');
190 $this->field->id = $DB->insert_record('data_fields',$this->field);
196 * Update a field in the database
201 function update_field() {
204 $DB->update_record('data_fields', $this->field);
209 * Delete a field completely
214 function delete_field() {
217 if (!empty($this->field->id)) {
218 $this->delete_content();
219 $DB->delete_records('data_fields', array('id'=>$this->field->id));
225 * Print the relevant form element in the ADD template for this field
228 * @param int $recordid
231 function display_add_field($recordid=0){
235 $content = $DB->get_field('data_content', 'content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid));
240 // beware get_field returns false for new, empty records MDL-18567
241 if ($content===false) {
245 $str = '<div title="'.s($this->field->description).'">';
246 $str .= '<input style="width:300px;" type="text" name="field_'.$this->field->id.'" id="field_'.$this->field->id.'" value="'.s($content).'" />';
253 * Print the relevant form element to define the attributes for this field
254 * viewable by teachers only.
258 * @return void Output is echo'd
260 function display_edit_field() {
261 global $CFG, $DB, $OUTPUT;
263 if (empty($this->field)) { // No field has been defined yet, try and make one
264 $this->define_default_field();
266 echo $OUTPUT->box_start('generalbox boxaligncenter boxwidthwide');
268 echo '<form id="editfield" action="'.$CFG->wwwroot.'/mod/data/field.php" method="post">'."\n";
269 echo '<input type="hidden" name="d" value="'.$this->data->id.'" />'."\n";
270 if (empty($this->field->id)) {
271 echo '<input type="hidden" name="mode" value="add" />'."\n";
272 $savebutton = get_string('add');
274 echo '<input type="hidden" name="fid" value="'.$this->field->id.'" />'."\n";
275 echo '<input type="hidden" name="mode" value="update" />'."\n";
276 $savebutton = get_string('savechanges');
278 echo '<input type="hidden" name="type" value="'.$this->type.'" />'."\n";
279 echo '<input name="sesskey" value="'.sesskey().'" type="hidden" />'."\n";
281 echo $OUTPUT->heading($this->name());
283 require_once($CFG->dirroot.'/mod/data/field/'.$this->type.'/mod.html');
285 echo '<div class="mdl-align">';
286 echo '<input type="submit" value="'.$savebutton.'" />'."\n";
287 echo '<input type="submit" name="cancel" value="'.get_string('cancel').'" />'."\n";
292 echo $OUTPUT->box_end();
296 * Display the content of the field in browse mode
299 * @param int $recordid
300 * @param object $template
301 * @return bool|string
303 function display_browse_field($recordid, $template) {
306 if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
307 if (isset($content->content)) {
308 $options = new stdClass();
309 if ($this->field->param1 == '1') { // We are autolinking this field, so disable linking within us
310 //$content->content = '<span class="nolink">'.$content->content.'</span>';
311 //$content->content1 = FORMAT_HTML;
312 $options->filter=false;
314 $options->para = false;
315 $str = format_text($content->content, $content->content1, $options);
325 * Update the content of one data field in the data_content table
327 * @param int $recordid
328 * @param mixed $value
329 * @param string $name
332 function update_content($recordid, $value, $name=''){
335 $content = new stdClass();
336 $content->fieldid = $this->field->id;
337 $content->recordid = $recordid;
338 $content->content = clean_param($value, PARAM_NOTAGS);
340 if ($oldcontent = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
341 $content->id = $oldcontent->id;
342 return $DB->update_record('data_content', $content);
344 return $DB->insert_record('data_content', $content);
349 * Delete all content associated with the field
352 * @param int $recordid
355 function delete_content($recordid=0) {
359 $conditions = array('fieldid'=>$this->field->id, 'recordid'=>$recordid);
361 $conditions = array('fieldid'=>$this->field->id);
364 $rs = $DB->get_recordset('data_content', $conditions);
366 $fs = get_file_storage();
367 foreach ($rs as $content) {
368 $fs->delete_area_files($this->context->id, 'mod_data', 'content', $content->id);
373 return $DB->delete_records('data_content', $conditions);
377 * Check if a field from an add form is empty
379 * @param mixed $value
383 function notemptyfield($value, $name) {
384 return !empty($value);
388 * Just in case a field needs to print something before the whole form
390 function print_before_form() {
394 * Just in case a field needs to print something after the whole form
396 function print_after_form() {
401 * Returns the sortable field for the content. By default, it's just content
402 * but for some plugins, it could be content 1 - content4
406 function get_sort_field() {
411 * Returns the SQL needed to refer to the column. Some fields may need to CAST() etc.
413 * @param string $fieldname
414 * @return string $fieldname
416 function get_sort_sql($fieldname) {
421 * Returns the name/type of the field
426 return get_string('name'.$this->type, 'data');
430 * Prints the respective type icon
438 $params = array('d'=>$this->data->id, 'fid'=>$this->field->id, 'mode'=>'display', 'sesskey'=>sesskey());
439 $link = new moodle_url('/mod/data/field.php', $params);
440 $str = '<a href="'.$link->out().'">';
441 $str .= '<img src="'.$OUTPUT->pix_url('field/'.$this->type, 'data') . '" ';
442 $str .= 'height="'.$this->iconheight.'" width="'.$this->iconwidth.'" alt="'.$this->type.'" title="'.$this->type.'" /></a>';
447 * Per default, it is assumed that fields support text exporting.
448 * Override this (return false) on fields not supporting text exporting.
452 function text_export_supported() {
457 * Per default, return the record's text value only from the "content" field.
458 * Override this in fields class if necesarry.
460 * @param string $record
463 function export_text_value($record) {
464 if ($this->text_export_supported()) {
465 return $record->content;
470 * @param string $relativepath
473 function file_ok($relativepath) {
480 * Given a template and a dataid, generate a default case template
483 * @param object $data
484 * @param string template [addtemplate, singletemplate, listtempalte, rsstemplate]
485 * @param int $recordid
487 * @param bool $update
488 * @return bool|string
490 function data_generate_default_template(&$data, $template, $recordid=0, $form=false, $update=true) {
493 if (!$data && !$template) {
496 if ($template == 'csstemplate' or $template == 'jstemplate' ) {
500 // get all the fields for that database
501 if ($fields = $DB->get_records('data_fields', array('dataid'=>$data->id), 'id')) {
503 $table = new html_table();
504 $table->attributes['class'] = 'mod-data-default-template';
505 $table->colclasses = array('template-field', 'template-token');
506 $table->data = array();
507 foreach ($fields as $field) {
508 if ($form) { // Print forms instead of data
509 $fieldobj = data_get_field($field, $data);
510 $token = $fieldobj->display_add_field($recordid);
511 } else { // Just print the tag
512 $token = '[['.$field->name.']]';
514 $table->data[] = array(
519 if ($template == 'listtemplate') {
520 $cell = new html_table_cell('##edit## ##more## ##delete## ##approve## ##export##');
522 $cell->attributes['class'] = 'controls';
523 $table->data[] = new html_table_row(array($cell));
524 } else if ($template == 'singletemplate') {
525 $cell = new html_table_cell('##edit## ##delete## ##approve## ##export##');
527 $cell->attributes['class'] = 'controls';
528 $table->data[] = new html_table_row(array($cell));
529 } else if ($template == 'asearchtemplate') {
530 $row = new html_table_row(array(get_string('authorfirstname', 'data').': ', '##firstname##'));
531 $row->attributes['class'] = 'searchcontrols';
532 $table->data[] = $row;
533 $row = new html_table_row(array(get_string('authorlastname', 'data').': ', '##lastname##'));
534 $row->attributes['class'] = 'searchcontrols';
535 $table->data[] = $row;
538 $str = html_writer::start_tag('div', array('class' => 'defaulttemplate'));
539 $str .= html_writer::table($table);
540 $str .= html_writer::end_tag('div');
541 if ($template == 'listtemplate'){
542 $str .= html_writer::empty_tag('hr');
546 $newdata = new stdClass();
547 $newdata->id = $data->id;
548 $newdata->{$template} = $str;
549 $DB->update_record('data', $newdata);
550 $data->{$template} = $str;
559 * Search for a field name and replaces it with another one in all the
560 * form templates. Set $newfieldname as '' if you want to delete the
561 * field from the form.
564 * @param object $data
565 * @param string $searchfieldname
566 * @param string $newfieldname
569 function data_replace_field_in_templates($data, $searchfieldname, $newfieldname) {
572 if (!empty($newfieldname)) {
583 $newdata = new stdClass();
584 $newdata->id = $data->id;
585 $newdata->singletemplate = str_ireplace('[['.$searchfieldname.']]',
586 $prestring.$newfieldname.$poststring, $data->singletemplate);
588 $newdata->listtemplate = str_ireplace('[['.$searchfieldname.']]',
589 $prestring.$newfieldname.$poststring, $data->listtemplate);
591 $newdata->addtemplate = str_ireplace('[['.$searchfieldname.']]',
592 $prestring.$newfieldname.$poststring, $data->addtemplate);
594 $newdata->addtemplate = str_ireplace('[['.$searchfieldname.'#id]]',
595 $prestring.$newfieldname.$idpart.$poststring, $data->addtemplate);
597 $newdata->rsstemplate = str_ireplace('[['.$searchfieldname.']]',
598 $prestring.$newfieldname.$poststring, $data->rsstemplate);
600 return $DB->update_record('data', $newdata);
605 * Appends a new field at the end of the form template.
608 * @param object $data
609 * @param string $newfieldname
611 function data_append_new_field_to_templates($data, $newfieldname) {
614 $newdata = new stdClass();
615 $newdata->id = $data->id;
618 if (!empty($data->singletemplate)) {
619 $newdata->singletemplate = $data->singletemplate.' [[' . $newfieldname .']]';
622 if (!empty($data->addtemplate)) {
623 $newdata->addtemplate = $data->addtemplate.' [[' . $newfieldname . ']]';
626 if (!empty($data->rsstemplate)) {
627 $newdata->rsstemplate = $data->singletemplate.' [[' . $newfieldname . ']]';
631 $DB->update_record('data', $newdata);
638 * this function creates an instance of the particular subfield class
641 * @param string $name
642 * @param object $data
643 * @return object|bool
645 function data_get_field_from_name($name, $data){
648 $field = $DB->get_record('data_fields', array('name'=>$name, 'dataid'=>$data->id));
651 return data_get_field($field, $data);
659 * this function creates an instance of the particular subfield class
662 * @param int $fieldid
663 * @param object $data
664 * @return bool|object
666 function data_get_field_from_id($fieldid, $data){
669 $field = $DB->get_record('data_fields', array('id'=>$fieldid, 'dataid'=>$data->id));
672 return data_get_field($field, $data);
680 * this function creates an instance of the particular subfield class
683 * @param string $type
684 * @param object $data
687 function data_get_field_new($type, $data) {
690 require_once($CFG->dirroot.'/mod/data/field/'.$type.'/field.class.php');
691 $newfield = 'data_field_'.$type;
692 $newfield = new $newfield(0, $data);
697 * returns a subclass field object given a record of the field, used to
698 * invoke plugin methods
699 * input: $param $field - record from db
702 * @param object $field
703 * @param object $data
707 function data_get_field($field, $data, $cm=null) {
711 require_once('field/'.$field->type.'/field.class.php');
712 $newfield = 'data_field_'.$field->type;
713 $newfield = new $newfield($field, $data, $cm);
720 * Given record object (or id), returns true if the record belongs to the current user
724 * @param mixed $record record object or id
727 function data_isowner($record) {
730 if (!isloggedin()) { // perf shortcut
734 if (!is_object($record)) {
735 if (!$record = $DB->get_record('data_records', array('id'=>$record))) {
740 return ($record->userid == $USER->id);
744 * has a user reached the max number of entries?
746 * @param object $data
749 function data_atmaxentries($data){
750 if (!$data->maxentries){
754 return (data_numentries($data) >= $data->maxentries);
759 * returns the number of entries already made by this user
763 * @param object $data
766 function data_numentries($data){
768 $sql = 'SELECT COUNT(*) FROM {data_records} WHERE dataid=? AND userid=?';
769 return $DB->count_records_sql($sql, array($data->id, $USER->id));
773 * function that takes in a dataid and adds a record
774 * this is used everytime an add template is submitted
778 * @param object $data
779 * @param int $groupid
782 function data_add_record($data, $groupid=0){
785 $cm = get_coursemodule_from_instance('data', $data->id);
786 $context = get_context_instance(CONTEXT_MODULE, $cm->id);
788 $record = new stdClass();
789 $record->userid = $USER->id;
790 $record->dataid = $data->id;
791 $record->groupid = $groupid;
792 $record->timecreated = $record->timemodified = time();
793 if (has_capability('mod/data:approve', $context)) {
794 $record->approved = 1;
796 $record->approved = 0;
798 return $DB->insert_record('data_records', $record);
802 * check the multple existence any tag in a template
804 * check to see if there are 2 or more of the same tag being used.
807 * @param int $dataid,
808 * @param string $template
811 function data_tags_check($dataid, $template) {
814 // first get all the possible tags
815 $fields = $DB->get_records('data_fields', array('dataid'=>$dataid));
816 // then we generate strings to replace
817 $tagsok = true; // let's be optimistic
818 foreach ($fields as $field){
819 $pattern="/\[\[".$field->name."\]\]/i";
820 if (preg_match_all($pattern, $template, $dummy)>1){
822 echo $OUTPUT->notification('[['.$field->name.']] - '.get_string('multipletags','data'));
830 * Adds an instance of a data
833 * @param object $data
836 function data_add_instance($data) {
839 if (empty($data->assessed)) {
843 $data->timemodified = time();
845 $data->id = $DB->insert_record('data', $data);
847 data_grade_item_update($data);
853 * updates an instance of a data
856 * @param object $data
859 function data_update_instance($data) {
862 $data->timemodified = time();
863 $data->id = $data->instance;
865 if (empty($data->assessed)) {
869 if (empty($data->ratingtime) or empty($data->assessed)) {
870 $data->assesstimestart = 0;
871 $data->assesstimefinish = 0;
874 if (empty($data->notification)) {
875 $data->notification = 0;
878 $DB->update_record('data', $data);
880 data_grade_item_update($data);
887 * deletes an instance of a data
893 function data_delete_instance($id) { // takes the dataid
896 if (!$data = $DB->get_record('data', array('id'=>$id))) {
900 $cm = get_coursemodule_from_instance('data', $data->id);
901 $context = get_context_instance(CONTEXT_MODULE, $cm->id);
903 /// Delete all the associated information
906 $fs = get_file_storage();
907 $fs->delete_area_files($context->id, 'mod_data');
909 // get all the records in this data
911 FROM {data_records} r
914 $DB->delete_records_select('data_content', "recordid IN ($sql)", array($id));
916 // delete all the records and fields
917 $DB->delete_records('data_records', array('dataid'=>$id));
918 $DB->delete_records('data_fields', array('dataid'=>$id));
920 // Delete the instance itself
921 $result = $DB->delete_records('data', array('id'=>$id));
924 data_grade_item_delete($data);
930 * returns a summary of data activity of this user
933 * @param object $course
934 * @param object $user
936 * @param object $data
937 * @return object|null
939 function data_user_outline($course, $user, $mod, $data) {
941 require_once("$CFG->libdir/gradelib.php");
943 $grades = grade_get_grades($course->id, 'mod', 'data', $data->id, $user->id);
944 if (empty($grades->items[0]->grades)) {
947 $grade = reset($grades->items[0]->grades);
951 if ($countrecords = $DB->count_records('data_records', array('dataid'=>$data->id, 'userid'=>$user->id))) {
952 $result = new stdClass();
953 $result->info = get_string('numrecords', 'data', $countrecords);
954 $lastrecord = $DB->get_record_sql('SELECT id,timemodified FROM {data_records}
955 WHERE dataid = ? AND userid = ?
956 ORDER BY timemodified DESC', array($data->id, $user->id), true);
957 $result->time = $lastrecord->timemodified;
959 $result->info .= ', ' . get_string('grade') . ': ' . $grade->str_long_grade;
963 $result = new stdClass();
964 $result->info = get_string('grade') . ': ' . $grade->str_long_grade;
966 //datesubmitted == time created. dategraded == time modified or time overridden
967 //if grade was last modified by the user themselves use date graded. Otherwise use date submitted
968 //TODO: move this copied & pasted code somewhere in the grades API. See MDL-26704
969 if ($grade->usermodified == $user->id || empty($grade->datesubmitted)) {
970 $result->time = $grade->dategraded;
972 $result->time = $grade->datesubmitted;
981 * Prints all the records uploaded by this user
984 * @param object $course
985 * @param object $user
987 * @param object $data
989 function data_user_complete($course, $user, $mod, $data) {
990 global $DB, $CFG, $OUTPUT;
991 require_once("$CFG->libdir/gradelib.php");
993 $grades = grade_get_grades($course->id, 'mod', 'data', $data->id, $user->id);
994 if (!empty($grades->items[0]->grades)) {
995 $grade = reset($grades->items[0]->grades);
996 echo $OUTPUT->container(get_string('grade').': '.$grade->str_long_grade);
997 if ($grade->str_feedback) {
998 echo $OUTPUT->container(get_string('feedback').': '.$grade->str_feedback);
1002 if ($records = $DB->get_records('data_records', array('dataid'=>$data->id,'userid'=>$user->id), 'timemodified DESC')) {
1003 data_print_template('singletemplate', $records, $data);
1008 * Return grade for given user or all users.
1011 * @param object $data
1012 * @param int $userid optional user id, 0 means all users
1013 * @return array array of grades, false if none
1015 function data_get_user_grades($data, $userid=0) {
1018 require_once($CFG->dirroot.'/rating/lib.php');
1020 $ratingoptions = new stdClass;
1021 $ratingoptions->component = 'mod_data';
1022 $ratingoptions->ratingarea = 'entry';
1023 $ratingoptions->modulename = 'data';
1024 $ratingoptions->moduleid = $data->id;
1026 $ratingoptions->userid = $userid;
1027 $ratingoptions->aggregationmethod = $data->assessed;
1028 $ratingoptions->scaleid = $data->scale;
1029 $ratingoptions->itemtable = 'data_records';
1030 $ratingoptions->itemtableusercolumn = 'userid';
1032 $rm = new rating_manager();
1033 return $rm->get_user_grades($ratingoptions);
1037 * Update activity grades
1041 * @param object $data
1042 * @param int $userid specific user only, 0 means all
1043 * @param bool $nullifnone
1045 function data_update_grades($data, $userid=0, $nullifnone=true) {
1047 require_once($CFG->libdir.'/gradelib.php');
1049 if (!$data->assessed) {
1050 data_grade_item_update($data);
1052 } else if ($grades = data_get_user_grades($data, $userid)) {
1053 data_grade_item_update($data, $grades);
1055 } else if ($userid and $nullifnone) {
1056 $grade = new stdClass();
1057 $grade->userid = $userid;
1058 $grade->rawgrade = NULL;
1059 data_grade_item_update($data, $grade);
1062 data_grade_item_update($data);
1067 * Update all grades in gradebook.
1071 function data_upgrade_grades() {
1074 $sql = "SELECT COUNT('x')
1075 FROM {data} d, {course_modules} cm, {modules} m
1076 WHERE m.name='data' AND m.id=cm.module AND cm.instance=d.id";
1077 $count = $DB->count_records_sql($sql);
1079 $sql = "SELECT d.*, cm.idnumber AS cmidnumber, d.course AS courseid
1080 FROM {data} d, {course_modules} cm, {modules} m
1081 WHERE m.name='data' AND m.id=cm.module AND cm.instance=d.id";
1082 $rs = $DB->get_recordset_sql($sql);
1084 // too much debug output
1085 $pbar = new progress_bar('dataupgradegrades', 500, true);
1087 foreach ($rs as $data) {
1089 upgrade_set_timeout(60*5); // set up timeout, may also abort execution
1090 data_update_grades($data, 0, false);
1091 $pbar->update($i, $count, "Updating Database grades ($i/$count).");
1098 * Update/create grade item for given data
1101 * @param object $data object with extra cmidnumber
1102 * @param mixed optional array/object of grade(s); 'reset' means reset grades in gradebook
1103 * @return object grade_item
1105 function data_grade_item_update($data, $grades=NULL) {
1107 require_once($CFG->libdir.'/gradelib.php');
1109 $params = array('itemname'=>$data->name, 'idnumber'=>$data->cmidnumber);
1111 if (!$data->assessed or $data->scale == 0) {
1112 $params['gradetype'] = GRADE_TYPE_NONE;
1114 } else if ($data->scale > 0) {
1115 $params['gradetype'] = GRADE_TYPE_VALUE;
1116 $params['grademax'] = $data->scale;
1117 $params['grademin'] = 0;
1119 } else if ($data->scale < 0) {
1120 $params['gradetype'] = GRADE_TYPE_SCALE;
1121 $params['scaleid'] = -$data->scale;
1124 if ($grades === 'reset') {
1125 $params['reset'] = true;
1129 return grade_update('mod/data', $data->course, 'mod', 'data', $data->id, 0, $grades, $params);
1133 * Delete grade item for given data
1136 * @param object $data object
1137 * @return object grade_item
1139 function data_grade_item_delete($data) {
1141 require_once($CFG->libdir.'/gradelib.php');
1143 return grade_update('mod/data', $data->course, 'mod', 'data', $data->id, 0, NULL, array('deleted'=>1));
1147 * returns a list of participants of this database
1149 * Returns the users with data in one data
1150 * (users with records in data_records, data_comments and ratings)
1152 * @todo: deprecated - to be deleted in 2.2
1154 * @param int $dataid
1157 function data_get_participants($dataid) {
1160 $params = array('dataid' => $dataid);
1162 $sql = "SELECT DISTINCT u.id, u.id
1165 WHERE r.dataid = :dataid AND
1167 $records = $DB->get_records_sql($sql, $params);
1169 $sql = "SELECT DISTINCT u.id, u.id
1173 WHERE r.dataid = ? AND
1176 c.commentarea = 'database_entry'";
1177 $comments = $DB->get_records_sql($sql, $params);
1179 $sql = "SELECT DISTINCT u.id, u.id
1183 WHERE r.dataid = ? AND
1186 a.component = 'mod_data' AND
1187 a.ratingarea = 'entry'";
1188 $ratings = $DB->get_records_sql($sql, $params);
1190 $participants = array();
1193 foreach ($records as $record) {
1194 $participants[$record->id] = $record;
1198 foreach ($comments as $comment) {
1199 $participants[$comment->id] = $comment;
1203 foreach ($ratings as $rating) {
1204 $participants[$rating->id] = $rating;
1208 return $participants;
1213 * takes a list of records, the current data, a search string,
1214 * and mode to display prints the translated template
1218 * @param string $template
1219 * @param array $records
1220 * @param object $data
1221 * @param string $search
1223 * @param bool $return
1226 function data_print_template($template, $records, $data, $search='', $page=0, $return=false) {
1227 global $CFG, $DB, $OUTPUT;
1228 $cm = get_coursemodule_from_instance('data', $data->id);
1229 $context = get_context_instance(CONTEXT_MODULE, $cm->id);
1231 static $fields = NULL;
1233 static $dataid = NULL;
1235 if (empty($dataid)) {
1236 $dataid = $data->id;
1237 } else if ($dataid != $data->id) {
1241 if (empty($fields)) {
1242 $fieldrecords = $DB->get_records('data_fields', array('dataid'=>$data->id));
1243 foreach ($fieldrecords as $fieldrecord) {
1244 $fields[]= data_get_field($fieldrecord, $data);
1246 $isteacher = has_capability('mod/data:managetemplates', $context);
1249 if (empty($records)) {
1253 foreach ($records as $record) { // Might be just one for the single template
1256 $patterns = array();
1257 $replacement = array();
1259 // Then we generate strings to replace for normal tags
1260 foreach ($fields as $field) {
1261 $patterns[]='[['.$field->field->name.']]';
1262 $replacement[] = highlight($search, $field->display_browse_field($record->id, $template));
1265 // Replacing special tags (##Edit##, ##Delete##, ##More##)
1266 $patterns[]='##edit##';
1267 $patterns[]='##delete##';
1268 if (has_capability('mod/data:manageentries', $context) or data_isowner($record->id)) {
1269 $replacement[] = '<a href="'.$CFG->wwwroot.'/mod/data/edit.php?d='
1270 .$data->id.'&rid='.$record->id.'&sesskey='.sesskey().'"><img src="'.$OUTPUT->pix_url('t/edit') . '" class="iconsmall" alt="'.get_string('edit').'" title="'.get_string('edit').'" /></a>';
1271 $replacement[] = '<a href="'.$CFG->wwwroot.'/mod/data/view.php?d='
1272 .$data->id.'&delete='.$record->id.'&sesskey='.sesskey().'"><img src="'.$OUTPUT->pix_url('t/delete') . '" class="iconsmall" alt="'.get_string('delete').'" title="'.get_string('delete').'" /></a>';
1274 $replacement[] = '';
1275 $replacement[] = '';
1278 $moreurl = $CFG->wwwroot . '/mod/data/view.php?d=' . $data->id . '&rid=' . $record->id;
1280 $moreurl .= '&filter=1';
1282 $patterns[]='##more##';
1283 $replacement[] = '<a href="' . $moreurl . '"><img src="' . $OUTPUT->pix_url('i/search') . '" class="iconsmall" alt="' . get_string('more', 'data') . '" title="' . get_string('more', 'data') . '" /></a>';
1285 $patterns[]='##moreurl##';
1286 $replacement[] = $moreurl;
1288 $patterns[]='##user##';
1289 $replacement[] = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$record->userid.
1290 '&course='.$data->course.'">'.fullname($record).'</a>';
1292 $patterns[]='##export##';
1294 if (!empty($CFG->enableportfolios) && ($template == 'singletemplate' || $template == 'listtemplate')
1295 && ((has_capability('mod/data:exportentry', $context)
1296 || (data_isowner($record->id) && has_capability('mod/data:exportownentry', $context))))) {
1297 require_once($CFG->libdir . '/portfoliolib.php');
1298 $button = new portfolio_add_button();
1299 $button->set_callback_options('data_portfolio_caller', array('id' => $cm->id, 'recordid' => $record->id), '/mod/data/locallib.php');
1300 list($formats, $files) = data_portfolio_caller::formats($fields, $record);
1301 $button->set_formats($formats);
1302 $replacement[] = $button->to_html(PORTFOLIO_ADD_ICON_LINK);
1304 $replacement[] = '';
1307 $patterns[] = '##timeadded##';
1308 $replacement[] = userdate($record->timecreated);
1310 $patterns[] = '##timemodified##';
1311 $replacement [] = userdate($record->timemodified);
1313 $patterns[]='##approve##';
1314 if (has_capability('mod/data:approve', $context) && ($data->approval) && (!$record->approved)){
1315 $replacement[] = '<span class="approve"><a href="'.$CFG->wwwroot.'/mod/data/view.php?d='.$data->id.'&approve='.$record->id.'&sesskey='.sesskey().'"><img src="'.$OUTPUT->pix_url('i/approve') . '" class="icon" alt="'.get_string('approve').'" /></a></span>';
1317 $replacement[] = '';
1320 $patterns[]='##comments##';
1321 if (($template == 'listtemplate') && ($data->comments)) {
1323 if (!empty($CFG->usecomments)) {
1324 require_once($CFG->dirroot . '/comment/lib.php');
1325 list($context, $course, $cm) = get_context_info_array($context->id);
1326 $cmt = new stdClass();
1327 $cmt->context = $context;
1328 $cmt->course = $course;
1330 $cmt->area = 'database_entry';
1331 $cmt->itemid = $record->id;
1332 $cmt->showcount = true;
1333 $cmt->component = 'mod_data';
1334 $comment = new comment($cmt);
1335 $replacement[] = $comment->output(true);
1338 $replacement[] = '';
1341 // actual replacement of the tags
1342 $newtext = str_ireplace($patterns, $replacement, $data->{$template});
1344 // no more html formatting and filtering - see MDL-6635
1350 // hack alert - return is always false in singletemplate anyway ;-)
1351 /**********************************
1352 * Printing Ratings Form *
1353 *********************************/
1354 if ($template == 'singletemplate') { //prints ratings options
1355 data_print_ratings($data, $record);
1358 /**********************************
1359 * Printing Comments Form *
1360 *********************************/
1361 if (($template == 'singletemplate') && ($data->comments)) {
1362 if (!empty($CFG->usecomments)) {
1363 require_once($CFG->dirroot . '/comment/lib.php');
1364 list($context, $course, $cm) = get_context_info_array($context->id);
1365 $cmt = new stdClass();
1366 $cmt->context = $context;
1367 $cmt->course = $course;
1369 $cmt->area = 'database_entry';
1370 $cmt->itemid = $record->id;
1371 $cmt->showcount = true;
1372 $cmt->component = 'mod_data';
1373 $comment = new comment($cmt);
1374 $comment->output(false);
1382 * Return rating related permissions
1384 * @param string $contextid the context id
1385 * @param string $component the component to get rating permissions for
1386 * @param string $ratingarea the rating area to get permissions for
1387 * @return array an associative array of the user's rating permissions
1389 function data_rating_permissions($contextid, $component, $ratingarea) {
1390 $context = get_context_instance_by_id($contextid, MUST_EXIST);
1391 if ($component != 'mod_data' || $ratingarea != 'entry') {
1395 'view' => has_capability('mod/data:viewrating',$context),
1396 'viewany' => has_capability('mod/data:viewanyrating',$context),
1397 'viewall' => has_capability('mod/data:viewallratings',$context),
1398 'rate' => has_capability('mod/data:rate',$context)
1403 * Validates a submitted rating
1404 * @param array $params submitted data
1405 * context => object the context in which the rated items exists [required]
1406 * itemid => int the ID of the object being rated
1407 * scaleid => int the scale from which the user can select a rating. Used for bounds checking. [required]
1408 * rating => int the submitted rating
1409 * rateduserid => int the id of the user whose items have been rated. NOT the user who submitted the ratings. 0 to update all. [required]
1410 * aggregation => int the aggregation method to apply when calculating grades ie RATING_AGGREGATE_AVERAGE [required]
1411 * @return boolean true if the rating is valid. Will throw rating_exception if not
1413 function data_rating_validate($params) {
1416 // Check the component is mod_data
1417 if ($params['component'] != 'mod_data') {
1418 throw new rating_exception('invalidcomponent');
1421 // Check the ratingarea is entry (the only rating area in data module)
1422 if ($params['ratingarea'] != 'entry') {
1423 throw new rating_exception('invalidratingarea');
1426 // Check the rateduserid is not the current user .. you can't rate your own entries
1427 if ($params['rateduserid'] == $USER->id) {
1428 throw new rating_exception('nopermissiontorate');
1431 $datasql = "SELECT d.id as dataid, d.scale, d.course, r.userid as userid, d.approval, r.approved, r.timecreated, d.assesstimestart, d.assesstimefinish, r.groupid
1432 FROM {data_records} r
1433 JOIN {data} d ON r.dataid = d.id
1434 WHERE r.id = :itemid";
1435 $dataparams = array('itemid'=>$params['itemid']);
1436 if (!$info = $DB->get_record_sql($datasql, $dataparams)) {
1437 //item doesn't exist
1438 throw new rating_exception('invaliditemid');
1441 if ($info->scale != $params['scaleid']) {
1442 //the scale being submitted doesnt match the one in the database
1443 throw new rating_exception('invalidscaleid');
1446 //check that the submitted rating is valid for the scale
1449 if ($params['rating'] < 0 && $params['rating'] != RATING_UNSET_RATING) {
1450 throw new rating_exception('invalidnum');
1454 if ($info->scale < 0) {
1455 //its a custom scale
1456 $scalerecord = $DB->get_record('scale', array('id' => -$info->scale));
1458 $scalearray = explode(',', $scalerecord->scale);
1459 if ($params['rating'] > count($scalearray)) {
1460 throw new rating_exception('invalidnum');
1463 throw new rating_exception('invalidscaleid');
1465 } else if ($params['rating'] > $info->scale) {
1466 //if its numeric and submitted rating is above maximum
1467 throw new rating_exception('invalidnum');
1470 if ($info->approval && !$info->approved) {
1471 //database requires approval but this item isnt approved
1472 throw new rating_exception('nopermissiontorate');
1475 // check the item we're rating was created in the assessable time window
1476 if (!empty($info->assesstimestart) && !empty($info->assesstimefinish)) {
1477 if ($info->timecreated < $info->assesstimestart || $info->timecreated > $info->assesstimefinish) {
1478 throw new rating_exception('notavailable');
1482 $course = $DB->get_record('course', array('id'=>$info->course), '*', MUST_EXIST);
1483 $cm = get_coursemodule_from_instance('data', $info->dataid, $course->id, false, MUST_EXIST);
1484 $context = get_context_instance(CONTEXT_MODULE, $cm->id, MUST_EXIST);
1486 // if the supplied context doesnt match the item's context
1487 if ($context->id != $params['context']->id) {
1488 throw new rating_exception('invalidcontext');
1491 // Make sure groups allow this user to see the item they're rating
1492 $groupid = $info->groupid;
1493 if ($groupid > 0 and $groupmode = groups_get_activity_groupmode($cm, $course)) { // Groups are being used
1494 if (!groups_group_exists($groupid)) { // Can't find group
1495 throw new rating_exception('cannotfindgroup');//something is wrong
1498 if (!groups_is_member($groupid) and !has_capability('moodle/site:accessallgroups', $context)) {
1499 // do not allow rating of posts from other groups when in SEPARATEGROUPS or VISIBLEGROUPS
1500 throw new rating_exception('notmemberofgroup');
1509 * function that takes in the current data, number of items per page,
1510 * a search string and prints a preference box in view.php
1512 * This preference box prints a searchable advanced search template if
1513 * a) A template is defined
1514 * b) The advanced search checkbox is checked.
1518 * @param object $data
1519 * @param int $perpage
1520 * @param string $search
1521 * @param string $sort
1522 * @param string $order
1523 * @param array $search_array
1524 * @param int $advanced
1525 * @param string $mode
1528 function data_print_preference_form($data, $perpage, $search, $sort='', $order='ASC', $search_array = '', $advanced = 0, $mode= ''){
1529 global $CFG, $DB, $PAGE, $OUTPUT;
1531 $cm = get_coursemodule_from_instance('data', $data->id);
1532 $context = get_context_instance(CONTEXT_MODULE, $cm->id);
1533 echo '<br /><div class="datapreferences">';
1534 echo '<form id="options" action="view.php" method="get">';
1536 echo '<input type="hidden" name="d" value="'.$data->id.'" />';
1537 if ($mode =='asearch') {
1539 echo '<input type="hidden" name="mode" value="list" />';
1541 echo '<label for="pref_perpage">'.get_string('pagesize','data').'</label> ';
1542 $pagesizes = array(2=>2,3=>3,4=>4,5=>5,6=>6,7=>7,8=>8,9=>9,10=>10,15=>15,
1543 20=>20,30=>30,40=>40,50=>50,100=>100,200=>200,300=>300,400=>400,500=>500,1000=>1000);
1544 echo html_writer::select($pagesizes, 'perpage', $perpage, false, array('id'=>'pref_perpage'));
1545 echo '<div id="reg_search" style="display: ';
1552 echo ';" > <label for="pref_search">'.get_string('search').'</label> <input type="text" size="16" name="search" id= "pref_search" value="'.s($search).'" /></div>';
1553 echo ' <label for="pref_sortby">'.get_string('sortby').'</label> ';
1554 // foreach field, print the option
1555 echo '<select name="sort" id="pref_sortby">';
1556 if ($fields = $DB->get_records('data_fields', array('dataid'=>$data->id), 'name')) {
1557 echo '<optgroup label="'.get_string('fields', 'data').'">';
1558 foreach ($fields as $field) {
1559 if ($field->id == $sort) {
1560 echo '<option value="'.$field->id.'" selected="selected">'.$field->name.'</option>';
1562 echo '<option value="'.$field->id.'">'.$field->name.'</option>';
1568 $options[DATA_TIMEADDED] = get_string('timeadded', 'data');
1569 $options[DATA_TIMEMODIFIED] = get_string('timemodified', 'data');
1570 $options[DATA_FIRSTNAME] = get_string('authorfirstname', 'data');
1571 $options[DATA_LASTNAME] = get_string('authorlastname', 'data');
1572 if ($data->approval and has_capability('mod/data:approve', $context)) {
1573 $options[DATA_APPROVED] = get_string('approved', 'data');
1575 echo '<optgroup label="'.get_string('other', 'data').'">';
1576 foreach ($options as $key => $name) {
1577 if ($key == $sort) {
1578 echo '<option value="'.$key.'" selected="selected">'.$name.'</option>';
1580 echo '<option value="'.$key.'">'.$name.'</option>';
1585 echo '<label for="pref_order" class="accesshide">'.get_string('order').'</label>';
1586 echo '<select id="pref_order" name="order">';
1587 if ($order == 'ASC') {
1588 echo '<option value="ASC" selected="selected">'.get_string('ascending','data').'</option>';
1590 echo '<option value="ASC">'.get_string('ascending','data').'</option>';
1592 if ($order == 'DESC') {
1593 echo '<option value="DESC" selected="selected">'.get_string('descending','data').'</option>';
1595 echo '<option value="DESC">'.get_string('descending','data').'</option>';
1600 $checked = ' checked="checked" ';
1605 $PAGE->requires->js('/mod/data/data.js');
1606 echo ' <input type="hidden" name="advanced" value="0" />';
1607 echo ' <input type="hidden" name="filter" value="1" />';
1608 echo ' <input type="checkbox" id="advancedcheckbox" name="advanced" value="1" '.$checked.' onchange="showHideAdvSearch(this.checked);" /><label for="advancedcheckbox">'.get_string('advancedsearch', 'data').'</label>';
1609 echo ' <input type="submit" value="'.get_string('savesettings','data').'" />';
1612 echo '<div class="dataadvancedsearch" id="data_adv_form" style="display: ';
1620 echo ';margin-left:auto;margin-right:auto;" >';
1621 echo '<table class="boxaligncenter">';
1623 // print ASC or DESC
1624 echo '<tr><td colspan="2"> </td></tr>';
1627 // Determine if we are printing all fields for advanced search, or the template for advanced search
1628 // If a template is not defined, use the deafault template and display all fields.
1629 if(empty($data->asearchtemplate)) {
1630 data_generate_default_template($data, 'asearchtemplate');
1633 static $fields = NULL;
1635 static $dataid = NULL;
1637 if (empty($dataid)) {
1638 $dataid = $data->id;
1639 } else if ($dataid != $data->id) {
1643 if (empty($fields)) {
1644 $fieldrecords = $DB->get_records('data_fields', array('dataid'=>$data->id));
1645 foreach ($fieldrecords as $fieldrecord) {
1646 $fields[]= data_get_field($fieldrecord, $data);
1649 $isteacher = has_capability('mod/data:managetemplates', $context);
1653 $patterns = array();
1654 $replacement = array();
1656 // Then we generate strings to replace for normal tags
1657 foreach ($fields as $field) {
1658 $fieldname = $field->field->name;
1659 $fieldname = preg_quote($fieldname, '/');
1660 $patterns[] = "/\[\[$fieldname\]\]/i";
1661 $searchfield = data_get_field_from_id($field->field->id, $data);
1662 if (!empty($search_array[$field->field->id]->data)) {
1663 $replacement[] = $searchfield->display_search_field($search_array[$field->field->id]->data);
1665 $replacement[] = $searchfield->display_search_field();
1668 $fn = !empty($search_array[DATA_FIRSTNAME]->data) ? $search_array[DATA_FIRSTNAME]->data : '';
1669 $ln = !empty($search_array[DATA_LASTNAME]->data) ? $search_array[DATA_LASTNAME]->data : '';
1670 $patterns[] = '/##firstname##/';
1671 $replacement[] = '<input type="text" size="16" name="u_fn" value="'.$fn.'" />';
1672 $patterns[] = '/##lastname##/';
1673 $replacement[] = '<input type="text" size="16" name="u_ln" value="'.$ln.'" />';
1675 // actual replacement of the tags
1676 $newtext = preg_replace($patterns, $replacement, $data->asearchtemplate);
1678 $options = new stdClass();
1679 $options->para=false;
1680 $options->noclean=true;
1682 echo format_text($newtext, FORMAT_HTML, $options);
1685 echo '<tr><td colspan="4" style="text-align: center;"><br/><input type="submit" value="'.get_string('savesettings','data').'" /><input type="submit" name="resetadv" value="'.get_string('resetsettings','data').'" /></td></tr>';
1696 * @param object $data
1697 * @param object $record
1698 * @return void Output echo'd
1700 function data_print_ratings($data, $record) {
1702 if (!empty($record->rating)){
1703 echo $OUTPUT->render($record->rating);
1708 * For Participantion Reports
1712 function data_get_view_actions() {
1713 return array('view');
1719 function data_get_post_actions() {
1720 return array('add','update','record delete');
1724 * @param string $name
1725 * @param int $dataid
1726 * @param int $fieldid
1729 function data_fieldname_exists($name, $dataid, $fieldid = 0) {
1732 if (!is_numeric($name)) {
1733 $like = $DB->sql_like('df.name', ':name', false);
1735 $like = "df.name = :name";
1737 $params = array('name'=>$name);
1739 $params['dataid'] = $dataid;
1740 $params['fieldid1'] = $fieldid;
1741 $params['fieldid2'] = $fieldid;
1742 return $DB->record_exists_sql("SELECT * FROM {data_fields} df
1743 WHERE $like AND df.dataid = :dataid
1744 AND ((df.id < :fieldid1) OR (df.id > :fieldid2))", $params);
1746 $params['dataid'] = $dataid;
1747 return $DB->record_exists_sql("SELECT * FROM {data_fields} df
1748 WHERE $like AND df.dataid = :dataid", $params);
1753 * @param array $fieldinput
1755 function data_convert_arrays_to_strings(&$fieldinput) {
1756 foreach ($fieldinput as $key => $val) {
1757 if (is_array($val)) {
1759 foreach ($val as $inner) {
1760 $str .= $inner . ',';
1762 $str = substr($str, 0, -1);
1764 $fieldinput->$key = $str;
1771 * Converts a database (module instance) to use the Roles System
1775 * @uses CONTEXT_MODULE
1778 * @param object $data a data object with the same attributes as a record
1779 * from the data database table
1780 * @param int $datamodid the id of the data module, from the modules table
1781 * @param array $teacherroles array of roles that have archetype teacher
1782 * @param array $studentroles array of roles that have archetype student
1783 * @param array $guestroles array of roles that have archetype guest
1784 * @param int $cmid the course_module id for this data instance
1785 * @return boolean data module was converted or not
1787 function data_convert_to_roles($data, $teacherroles=array(), $studentroles=array(), $cmid=NULL) {
1788 global $CFG, $DB, $OUTPUT;
1790 if (!isset($data->participants) && !isset($data->assesspublic)
1791 && !isset($data->groupmode)) {
1792 // We assume that this database has already been converted to use the
1793 // Roles System. above fields get dropped the data module has been
1794 // upgraded to use Roles.
1799 // We were not given the course_module id. Try to find it.
1800 if (!$cm = get_coursemodule_from_instance('data', $data->id)) {
1801 echo $OUTPUT->notification('Could not get the course module for the data');
1807 $context = get_context_instance(CONTEXT_MODULE, $cmid);
1810 // $data->participants:
1811 // 1 - Only teachers can add entries
1812 // 3 - Teachers and students can add entries
1813 switch ($data->participants) {
1815 foreach ($studentroles as $studentrole) {
1816 assign_capability('mod/data:writeentry', CAP_PREVENT, $studentrole->id, $context->id);
1818 foreach ($teacherroles as $teacherrole) {
1819 assign_capability('mod/data:writeentry', CAP_ALLOW, $teacherrole->id, $context->id);
1823 foreach ($studentroles as $studentrole) {
1824 assign_capability('mod/data:writeentry', CAP_ALLOW, $studentrole->id, $context->id);
1826 foreach ($teacherroles as $teacherrole) {
1827 assign_capability('mod/data:writeentry', CAP_ALLOW, $teacherrole->id, $context->id);
1833 // 2 - Only teachers can rate posts
1834 // 1 - Everyone can rate posts
1835 // 0 - No one can rate posts
1836 switch ($data->assessed) {
1838 foreach ($studentroles as $studentrole) {
1839 assign_capability('mod/data:rate', CAP_PREVENT, $studentrole->id, $context->id);
1841 foreach ($teacherroles as $teacherrole) {
1842 assign_capability('mod/data:rate', CAP_PREVENT, $teacherrole->id, $context->id);
1846 foreach ($studentroles as $studentrole) {
1847 assign_capability('mod/data:rate', CAP_ALLOW, $studentrole->id, $context->id);
1849 foreach ($teacherroles as $teacherrole) {
1850 assign_capability('mod/data:rate', CAP_ALLOW, $teacherrole->id, $context->id);
1854 foreach ($studentroles as $studentrole) {
1855 assign_capability('mod/data:rate', CAP_PREVENT, $studentrole->id, $context->id);
1857 foreach ($teacherroles as $teacherrole) {
1858 assign_capability('mod/data:rate', CAP_ALLOW, $teacherrole->id, $context->id);
1863 // $data->assesspublic:
1864 // 0 - Students can only see their own ratings
1865 // 1 - Students can see everyone's ratings
1866 switch ($data->assesspublic) {
1868 foreach ($studentroles as $studentrole) {
1869 assign_capability('mod/data:viewrating', CAP_PREVENT, $studentrole->id, $context->id);
1871 foreach ($teacherroles as $teacherrole) {
1872 assign_capability('mod/data:viewrating', CAP_ALLOW, $teacherrole->id, $context->id);
1876 foreach ($studentroles as $studentrole) {
1877 assign_capability('mod/data:viewrating', CAP_ALLOW, $studentrole->id, $context->id);
1879 foreach ($teacherroles as $teacherrole) {
1880 assign_capability('mod/data:viewrating', CAP_ALLOW, $teacherrole->id, $context->id);
1886 $cm = $DB->get_record('course_modules', array('id'=>$cmid));
1889 switch ($cm->groupmode) {
1892 case SEPARATEGROUPS:
1893 foreach ($studentroles as $studentrole) {
1894 assign_capability('moodle/site:accessallgroups', CAP_PREVENT, $studentrole->id, $context->id);
1896 foreach ($teacherroles as $teacherrole) {
1897 assign_capability('moodle/site:accessallgroups', CAP_ALLOW, $teacherrole->id, $context->id);
1901 foreach ($studentroles as $studentrole) {
1902 assign_capability('moodle/site:accessallgroups', CAP_ALLOW, $studentrole->id, $context->id);
1904 foreach ($teacherroles as $teacherrole) {
1905 assign_capability('moodle/site:accessallgroups', CAP_ALLOW, $teacherrole->id, $context->id);
1913 * Returns the best name to show for a preset
1915 * @param string $shortname
1916 * @param string $path
1919 function data_preset_name($shortname, $path) {
1921 // We are looking inside the preset itself as a first choice, but also in normal data directory
1922 $string = get_string('modulename', 'datapreset_'.$shortname);
1924 if (substr($string, 0, 1) == '[') {
1932 * Returns an array of all the available presets.
1936 function data_get_available_presets($context) {
1941 // First load the ratings sub plugins that exist within the modules preset dir
1942 if ($dirs = get_list_of_plugins('mod/data/preset')) {
1943 foreach ($dirs as $dir) {
1944 $fulldir = $CFG->dirroot.'/mod/data/preset/'.$dir;
1945 if (is_directory_a_preset($fulldir)) {
1946 $preset = new stdClass();
1947 $preset->path = $fulldir;
1948 $preset->userid = 0;
1949 $preset->shortname = $dir;
1950 $preset->name = data_preset_name($dir, $fulldir);
1951 if (file_exists($fulldir.'/screenshot.jpg')) {
1952 $preset->screenshot = $CFG->wwwroot.'/mod/data/preset/'.$dir.'/screenshot.jpg';
1953 } else if (file_exists($fulldir.'/screenshot.png')) {
1954 $preset->screenshot = $CFG->wwwroot.'/mod/data/preset/'.$dir.'/screenshot.png';
1955 } else if (file_exists($fulldir.'/screenshot.gif')) {
1956 $preset->screenshot = $CFG->wwwroot.'/mod/data/preset/'.$dir.'/screenshot.gif';
1958 $presets[] = $preset;
1962 // Now add to that the site presets that people have saved
1963 $presets = data_get_available_site_presets($context, $presets);
1968 * Gets an array of all of the presets that users have saved to the site.
1970 * @param stdClass $context The context that we are looking from.
1971 * @param array $presets
1972 * @return array An array of presets
1974 function data_get_available_site_presets($context, array $presets=array()) {
1977 $fs = get_file_storage();
1978 $files = $fs->get_area_files(DATA_PRESET_CONTEXT, DATA_PRESET_COMPONENT, DATA_PRESET_FILEAREA);
1979 $canviewall = has_capability('mod/data:viewalluserpresets', $context);
1980 if (empty($files)) {
1983 foreach ($files as $file) {
1984 if (($file->is_directory() && $file->get_filepath()=='/') || !$file->is_directory() || (!$canviewall && $file->get_userid() != $USER->id)) {
1987 $preset = new stdClass;
1988 $preset->path = $file->get_filepath();
1989 $preset->name = trim($preset->path, '/');
1990 $preset->shortname = $preset->name;
1991 $preset->userid = $file->get_userid();
1992 $preset->id = $file->get_id();
1993 $preset->storedfile = $file;
1994 $presets[] = $preset;
2000 * Deletes a saved preset.
2002 * @param string $name
2005 function data_delete_site_preset($name) {
2006 $fs = get_file_storage();
2008 $files = $fs->get_directory_files(DATA_PRESET_CONTEXT, DATA_PRESET_COMPONENT, DATA_PRESET_FILEAREA, 0, '/'.$name.'/');
2009 if (!empty($files)) {
2010 foreach ($files as $file) {
2015 $dir = $fs->get_file(DATA_PRESET_CONTEXT, DATA_PRESET_COMPONENT, DATA_PRESET_FILEAREA, 0, '/'.$name.'/', '.');
2023 * Prints the heads for a page
2025 * @param stdClass $course
2026 * @param stdClass $cm
2027 * @param stdClass $data
2028 * @param string $currenttab
2030 function data_print_header($course, $cm, $data, $currenttab='') {
2032 global $CFG, $displaynoticegood, $displaynoticebad, $OUTPUT, $PAGE;
2034 $PAGE->set_title($data->name);
2035 echo $OUTPUT->header();
2036 echo $OUTPUT->heading(format_string($data->name));
2038 // Groups needed for Add entry tab
2039 $currentgroup = groups_get_activity_group($cm);
2040 $groupmode = groups_get_activity_groupmode($cm);
2045 include('tabs.php');
2048 // Print any notices
2050 if (!empty($displaynoticegood)) {
2051 echo $OUTPUT->notification($displaynoticegood, 'notifysuccess'); // good (usually green)
2052 } else if (!empty($displaynoticebad)) {
2053 echo $OUTPUT->notification($displaynoticebad); // bad (usuually red)
2058 * Can user add more entries?
2060 * @param object $data
2061 * @param mixed $currentgroup
2062 * @param int $groupmode
2063 * @param stdClass $context
2066 function data_user_can_add_entry($data, $currentgroup, $groupmode, $context = null) {
2069 if (empty($context)) {
2070 $cm = get_coursemodule_from_instance('data', $data->id, 0, false, MUST_EXIST);
2071 $context = get_context_instance(CONTEXT_MODULE, $cm->id);
2074 if (has_capability('mod/data:manageentries', $context)) {
2075 // no entry limits apply if user can manage
2077 } else if (!has_capability('mod/data:writeentry', $context)) {
2080 } else if (data_atmaxentries($data)) {
2084 //if in the view only time window
2086 if ($now>$data->timeviewfrom && $now<$data->timeviewto) {
2090 if (!$groupmode or has_capability('moodle/site:accessallgroups', $context)) {
2094 if ($currentgroup) {
2095 return groups_is_member($currentgroup);
2097 //else it might be group 0 in visible mode
2098 if ($groupmode == VISIBLEGROUPS){
2110 function is_directory_a_preset($directory) {
2111 $directory = rtrim($directory, '/\\') . '/';
2112 $status = file_exists($directory.'singletemplate.html') &&
2113 file_exists($directory.'listtemplate.html') &&
2114 file_exists($directory.'listtemplateheader.html') &&
2115 file_exists($directory.'listtemplatefooter.html') &&
2116 file_exists($directory.'addtemplate.html') &&
2117 file_exists($directory.'rsstemplate.html') &&
2118 file_exists($directory.'rsstitletemplate.html') &&
2119 file_exists($directory.'csstemplate.css') &&
2120 file_exists($directory.'jstemplate.js') &&
2121 file_exists($directory.'preset.xml');
2127 * Abstract class used for data preset importers
2129 abstract class data_preset_importer {
2134 protected $directory;
2139 * @param stdClass $course
2140 * @param stdClass $cm
2141 * @param stdClass $module
2142 * @param string $directory
2144 public function __construct($course, $cm, $module, $directory) {
2145 $this->course = $course;
2147 $this->module = $module;
2148 $this->directory = $directory;
2152 * Returns the name of the directory the preset is located in
2155 public function get_directory() {
2156 return basename($this->directory);
2160 * Retreive the contents of a file. That file may either be in a conventional directory of the Moodle file storage
2161 * @param file_storage $filestorage. should be null if using a conventional directory
2162 * @param stored_file $fileobj the directory to look in. null if using a conventional directory
2163 * @param string $dir the directory to look in. null if using the Moodle file storage
2164 * @param string $filename the name of the file we want
2165 * @return string the contents of the file
2167 public function data_preset_get_file_contents(&$filestorage, &$fileobj, $dir, $filename) {
2168 if(empty($filestorage) || empty($fileobj)) {
2169 if (substr($dir, -1)!='/') {
2172 return file_get_contents($dir.$filename);
2174 $file = $filestorage->get_file(DATA_PRESET_CONTEXT, DATA_PRESET_COMPONENT, DATA_PRESET_FILEAREA, 0, $fileobj->get_filepath(), $filename);
2175 return $file->get_content();
2180 * Gets the preset settings
2181 * @global moodle_database $DB
2184 public function get_preset_settings() {
2187 $fs = $fileobj = null;
2188 if (!is_directory_a_preset($this->directory)) {
2189 //maybe the user requested a preset stored in the Moodle file storage
2191 $fs = get_file_storage();
2192 $files = $fs->get_area_files(DATA_PRESET_CONTEXT, DATA_PRESET_COMPONENT, DATA_PRESET_FILEAREA);
2194 //preset name to find will be the final element of the directory
2195 $presettofind = end(explode('/',$this->directory));
2197 //now go through the available files available and see if we can find it
2198 foreach ($files as $file) {
2199 if (($file->is_directory() && $file->get_filepath()=='/') || !$file->is_directory()) {
2202 $presetname = trim($file->get_filepath(), '/');
2203 if ($presetname==$presettofind) {
2204 $this->directory = $presetname;
2209 if (empty($fileobj)) {
2210 print_error('invalidpreset', 'data', '', $this->directory);
2214 $allowed_settings = array(
2218 'requiredentriestoview',
2225 $result = new stdClass;
2226 $result->settings = new stdClass;
2227 $result->importfields = array();
2228 $result->currentfields = $DB->get_records('data_fields', array('dataid'=>$this->module->id));
2229 if (!$result->currentfields) {
2230 $result->currentfields = array();
2235 $presetxml = $this->data_preset_get_file_contents($fs, $fileobj, $this->directory,'preset.xml');
2236 $parsedxml = xmlize($presetxml, 0);
2238 /* First, do settings. Put in user friendly array. */
2239 $settingsarray = $parsedxml['preset']['#']['settings'][0]['#'];
2240 $result->settings = new StdClass();
2241 foreach ($settingsarray as $setting => $value) {
2242 if (!is_array($value) || !in_array($setting, $allowed_settings)) {
2243 // unsupported setting
2246 $result->settings->$setting = $value[0]['#'];
2249 /* Now work out fields to user friendly array */
2250 $fieldsarray = $parsedxml['preset']['#']['field'];
2251 foreach ($fieldsarray as $field) {
2252 if (!is_array($field)) {
2255 $f = new StdClass();
2256 foreach ($field['#'] as $param => $value) {
2257 if (!is_array($value)) {
2260 $f->$param = $value[0]['#'];
2262 $f->dataid = $this->module->id;
2263 $f->type = clean_param($f->type, PARAM_ALPHA);
2264 $result->importfields[] = $f;
2266 /* Now add the HTML templates to the settings array so we can update d */
2267 $result->settings->singletemplate = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"singletemplate.html");
2268 $result->settings->listtemplate = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"listtemplate.html");
2269 $result->settings->listtemplateheader = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"listtemplateheader.html");
2270 $result->settings->listtemplatefooter = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"listtemplatefooter.html");
2271 $result->settings->addtemplate = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"addtemplate.html");
2272 $result->settings->rsstemplate = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"rsstemplate.html");
2273 $result->settings->rsstitletemplate = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"rsstitletemplate.html");
2274 $result->settings->csstemplate = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"csstemplate.css");
2275 $result->settings->jstemplate = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"jstemplate.js");
2278 if (file_exists($this->directory."/asearchtemplate.html")) {
2279 $result->settings->asearchtemplate = $this->data_preset_get_file_contents($fs, $fileobj,$this->directory,"asearchtemplate.html");
2281 $result->settings->asearchtemplate = NULL;
2283 $result->settings->instance = $this->module->id;
2289 * Import the preset into the given database module
2292 function import($overwritesettings) {
2295 $params = $this->get_preset_settings();
2296 $settings = $params->settings;
2297 $newfields = $params->importfields;
2298 $currentfields = $params->currentfields;
2299 $preservedfields = array();
2301 /* Maps fields and makes new ones */
2302 if (!empty($newfields)) {
2303 /* We require an injective mapping, and need to know what to protect */
2304 foreach ($newfields as $nid => $newfield) {
2305 $cid = optional_param("field_$nid", -1, PARAM_INT);
2309 if (array_key_exists($cid, $preservedfields)){
2310 print_error('notinjectivemap', 'data');
2312 else $preservedfields[$cid] = true;
2315 foreach ($newfields as $nid => $newfield) {
2316 $cid = optional_param("field_$nid", -1, PARAM_INT);
2318 /* A mapping. Just need to change field params. Data kept. */
2319 if ($cid != -1 and isset($currentfields[$cid])) {
2320 $fieldobject = data_get_field_from_id($currentfields[$cid]->id, $this->module);
2321 foreach ($newfield as $param => $value) {
2322 if ($param != "id") {
2323 $fieldobject->field->$param = $value;
2326 unset($fieldobject->field->similarfield);
2327 $fieldobject->update_field();
2328 unset($fieldobject);
2330 /* Make a new field */
2331 include_once("field/$newfield->type/field.class.php");
2333 if (!isset($newfield->description)) {
2334 $newfield->description = '';
2336 $classname = 'data_field_'.$newfield->type;
2337 $fieldclass = new $classname($newfield, $this->module);
2338 $fieldclass->insert_field();
2344 /* Get rid of all old unused data */
2345 if (!empty($preservedfields)) {
2346 foreach ($currentfields as $cid => $currentfield) {
2347 if (!array_key_exists($cid, $preservedfields)) {
2348 /* Data not used anymore so wipe! */
2349 print "Deleting field $currentfield->name<br />";
2351 $id = $currentfield->id;
2352 //Why delete existing data records and related comments/ratings??
2353 $DB->delete_records('data_content', array('fieldid'=>$id));
2354 $DB->delete_records('data_fields', array('id'=>$id));
2359 // handle special settings here
2360 if (!empty($settings->defaultsort)) {
2361 if (is_numeric($settings->defaultsort)) {
2363 $settings->defaultsort = 0;
2365 $settings->defaultsort = (int)$DB->get_field('data_fields', 'id', array('dataid'=>$this->module->id, 'name'=>$settings->defaultsort));
2368 $settings->defaultsort = 0;
2371 // do we want to overwrite all current database settings?
2372 if ($overwritesettings) {
2373 // all supported settings
2374 $overwrite = array_keys((array)$settings);
2376 // only templates and sorting
2377 $overwrite = array('singletemplate', 'listtemplate', 'listtemplateheader', 'listtemplatefooter',
2378 'addtemplate', 'rsstemplate', 'rsstitletemplate', 'csstemplate', 'jstemplate',
2379 'asearchtemplate', 'defaultsortdir', 'defaultsort');
2382 // now overwrite current data settings
2383 foreach ($this->module as $prop=>$unused) {
2384 if (in_array($prop, $overwrite)) {
2385 $this->module->$prop = $settings->$prop;
2389 data_update_instance($this->module);
2391 return $this->cleanup();
2395 * Any clean up routines should go here
2398 public function cleanup() {
2404 * Data preset importer for uploaded presets
2406 class data_preset_upload_importer extends data_preset_importer {
2407 public function __construct($course, $cm, $module, $filepath) {
2409 if (is_file($filepath)) {
2410 $fp = get_file_packer();
2411 if ($fp->extract_to_pathname($filepath, $filepath.'_extracted')) {
2412 fulldelete($filepath);
2414 $filepath .= '_extracted';
2416 parent::__construct($course, $cm, $module, $filepath);
2418 public function cleanup() {
2419 return fulldelete($this->directory);
2424 * Data preset importer for existing presets
2426 class data_preset_existing_importer extends data_preset_importer {
2428 public function __construct($course, $cm, $module, $fullname) {
2430 list($userid, $shortname) = explode('/', $fullname, 2);
2431 $context = get_context_instance(CONTEXT_MODULE, $cm->id);
2432 if ($userid && ($userid != $USER->id) && !has_capability('mod/data:manageuserpresets', $context) && !has_capability('mod/data:viewalluserpresets', $context)) {
2433 throw new coding_exception('Invalid preset provided');
2436 $this->userid = $userid;
2437 $filepath = data_preset_path($course, $userid, $shortname);
2438 parent::__construct($course, $cm, $module, $filepath);
2440 public function get_userid() {
2441 return $this->userid;
2448 * @param object $course
2449 * @param int $userid
2450 * @param string $shortname
2453 function data_preset_path($course, $userid, $shortname) {
2456 $context = get_context_instance(CONTEXT_COURSE, $course->id);
2458 $userid = (int)$userid;
2461 if ($userid > 0 && ($userid == $USER->id || has_capability('mod/data:viewalluserpresets', $context))) {
2462 $path = $CFG->dataroot.'/data/preset/'.$userid.'/'.$shortname;
2463 } else if ($userid == 0) {
2464 $path = $CFG->dirroot.'/mod/data/preset/'.$shortname;
2465 } else if ($userid < 0) {
2466 $path = $CFG->tempdir.'/data/'.-$userid.'/'.$shortname;
2473 * Implementation of the function for printing the form elements that control
2474 * whether the course reset functionality affects the data.
2476 * @param $mform form passed by reference
2478 function data_reset_course_form_definition(&$mform) {
2479 $mform->addElement('header', 'dataheader', get_string('modulenameplural', 'data'));
2480 $mform->addElement('checkbox', 'reset_data', get_string('deleteallentries','data'));
2482 $mform->addElement('checkbox', 'reset_data_notenrolled', get_string('deletenotenrolled', 'data'));
2483 $mform->disabledIf('reset_data_notenrolled', 'reset_data', 'checked');
2485 $mform->addElement('checkbox', 'reset_data_ratings', get_string('deleteallratings'));
2486 $mform->disabledIf('reset_data_ratings', 'reset_data', 'checked');
2488 $mform->addElement('checkbox', 'reset_data_comments', get_string('deleteallcomments'));
2489 $mform->disabledIf('reset_data_comments', 'reset_data', 'checked');
2493 * Course reset form defaults.
2496 function data_reset_course_form_defaults($course) {
2497 return array('reset_data'=>0, 'reset_data_ratings'=>1, 'reset_data_comments'=>1, 'reset_data_notenrolled'=>0);
2501 * Removes all grades from gradebook
2505 * @param int $courseid
2506 * @param string $type optional type
2508 function data_reset_gradebook($courseid, $type='') {
2511 $sql = "SELECT d.*, cm.idnumber as cmidnumber, d.course as courseid
2512 FROM {data} d, {course_modules} cm, {modules} m
2513 WHERE m.name='data' AND m.id=cm.module AND cm.instance=d.id AND d.course=?";
2515 if ($datas = $DB->get_records_sql($sql, array($courseid))) {
2516 foreach ($datas as $data) {
2517 data_grade_item_update($data, 'reset');
2523 * Actual implementation of the reset course functionality, delete all the
2524 * data responses for course $data->courseid.
2528 * @param object $data the data submitted from the reset course.
2529 * @return array status array
2531 function data_reset_userdata($data) {
2533 require_once($CFG->libdir.'/filelib.php');
2534 require_once($CFG->dirroot.'/rating/lib.php');
2536 $componentstr = get_string('modulenameplural', 'data');
2539 $allrecordssql = "SELECT r.id
2540 FROM {data_records} r
2541 INNER JOIN {data} d ON r.dataid = d.id
2542 WHERE d.course = ?";
2544 $alldatassql = "SELECT d.id
2548 $rm = new rating_manager();
2549 $ratingdeloptions = new stdClass;
2550 $ratingdeloptions->component = 'mod_data';
2551 $ratingdeloptions->ratingarea = 'entry';
2553 // delete entries if requested
2554 if (!empty($data->reset_data)) {
2555 $DB->delete_records_select('comments', "itemid IN ($allrecordssql) AND commentarea='database_entry'", array($data->courseid));
2556 $DB->delete_records_select('data_content', "recordid IN ($allrecordssql)", array($data->courseid));
2557 $DB->delete_records_select('data_records', "dataid IN ($alldatassql)", array($data->courseid));
2559 if ($datas = $DB->get_records_sql($alldatassql, array($data->courseid))) {
2560 foreach ($datas as $dataid=>$unused) {
2561 fulldelete("$CFG->dataroot/$data->courseid/moddata/data/$dataid");
2563 if (!$cm = get_coursemodule_from_instance('data', $dataid)) {
2566 $datacontext = get_context_instance(CONTEXT_MODULE, $cm->id);
2568 $ratingdeloptions->contextid = $datacontext->id;
2569 $rm->delete_ratings($ratingdeloptions);
2573 if (empty($data->reset_gradebook_grades)) {
2574 // remove all grades from gradebook
2575 data_reset_gradebook($data->courseid);
2577 $status[] = array('component'=>$componentstr, 'item'=>get_string('deleteallentries', 'data'), 'error'=>false);
2580 // remove entries by users not enrolled into course
2581 if (!empty($data->reset_data_notenrolled)) {
2582 $recordssql = "SELECT r.id, r.userid, r.dataid, u.id AS userexists, u.deleted AS userdeleted
2583 FROM {data_records} r
2584 JOIN {data} d ON r.dataid = d.id
2585 LEFT JOIN {user} u ON r.userid = u.id
2586 WHERE d.course = ? AND r.userid > 0";
2588 $course_context = get_context_instance(CONTEXT_COURSE, $data->courseid);
2589 $notenrolled = array();
2591 $rs = $DB->get_recordset_sql($recordssql, array($data->courseid));
2592 foreach ($rs as $record) {
2593 if (array_key_exists($record->userid, $notenrolled) or !$record->userexists or $record->userdeleted
2594 or !is_enrolled($course_context, $record->userid)) {
2596 if (!$cm = get_coursemodule_from_instance('data', $record->dataid)) {
2599 $datacontext = get_context_instance(CONTEXT_MODULE, $cm->id);
2600 $ratingdeloptions->contextid = $datacontext->id;
2601 $ratingdeloptions->itemid = $record->id;
2602 $rm->delete_ratings($ratingdeloptions);
2604 $DB->delete_records('comments', array('itemid'=>$record->id, 'commentarea'=>'database_entry'));
2605 $DB->delete_records('data_content', array('recordid'=>$record->id));
2606 $DB->delete_records('data_records', array('id'=>$record->id));
2607 // HACK: this is ugly - the recordid should be before the fieldid!
2608 if (!array_key_exists($record->dataid, $fields)) {
2609 if ($fs = $DB->get_records('data_fields', array('dataid'=>$record->dataid))) {
2610 $fields[$record->dataid] = array_keys($fs);
2612 $fields[$record->dataid] = array();
2615 foreach($fields[$record->dataid] as $fieldid) {
2616 fulldelete("$CFG->dataroot/$data->courseid/moddata/data/$record->dataid/$fieldid/$record->id");
2618 $notenrolled[$record->userid] = true;
2622 $status[] = array('component'=>$componentstr, 'item'=>get_string('deletenotenrolled', 'data'), 'error'=>false);
2625 // remove all ratings
2626 if (!empty($data->reset_data_ratings)) {
2627 if ($datas = $DB->get_records_sql($alldatassql, array($data->courseid))) {
2628 foreach ($datas as $dataid=>$unused) {
2629 if (!$cm = get_coursemodule_from_instance('data', $dataid)) {
2632 $datacontext = get_context_instance(CONTEXT_MODULE, $cm->id);
2634 $ratingdeloptions->contextid = $datacontext->id;
2635 $rm->delete_ratings($ratingdeloptions);
2639 if (empty($data->reset_gradebook_grades)) {
2640 // remove all grades from gradebook
2641 data_reset_gradebook($data->courseid);
2644 $status[] = array('component'=>$componentstr, 'item'=>get_string('deleteallratings'), 'error'=>false);
2647 // remove all comments
2648 if (!empty($data->reset_data_comments)) {
2649 $DB->delete_records_select('comments', "itemid IN ($allrecordssql) AND commentarea='database_entry'", array($data->courseid));
2650 $status[] = array('component'=>$componentstr, 'item'=>get_string('deleteallcomments'), 'error'=>false);
2653 // updating dates - shift may be negative too
2654 if ($data->timeshift) {
2655 shift_course_mod_dates('data', array('timeavailablefrom', 'timeavailableto', 'timeviewfrom', 'timeviewto'), $data->timeshift, $data->courseid);
2656 $status[] = array('component'=>$componentstr, 'item'=>get_string('datechanged'), 'error'=>false);
2663 * Returns all other caps used in module
2667 function data_get_extra_capabilities() {
2668 return array('moodle/site:accessallgroups', 'moodle/site:viewfullnames', 'moodle/rating:view', 'moodle/rating:viewany', 'moodle/rating:viewall', 'moodle/rating:rate', 'moodle/comment:view', 'moodle/comment:post', 'moodle/comment:delete');
2672 * @param string $feature FEATURE_xx constant for requested feature
2673 * @return mixed True if module supports feature, null if doesn't know
2675 function data_supports($feature) {
2677 case FEATURE_GROUPS: return true;
2678 case FEATURE_GROUPINGS: return true;
2679 case FEATURE_GROUPMEMBERSONLY: return true;
2680 case FEATURE_MOD_INTRO: return true;
2681 case FEATURE_COMPLETION_TRACKS_VIEWS: return true;
2682 case FEATURE_GRADE_HAS_GRADE: return true;
2683 case FEATURE_GRADE_OUTCOMES: return true;
2684 case FEATURE_RATE: return true;
2685 case FEATURE_BACKUP_MOODLE2: return true;
2686 case FEATURE_SHOW_DESCRIPTION: return true;
2688 default: return null;
2693 * @param array $export
2694 * @param string $delimiter_name
2695 * @param object $database
2697 * @param bool $return
2698 * @return string|void
2700 function data_export_csv($export, $delimiter_name, $dataname, $count, $return=false) {
2702 require_once($CFG->libdir . '/csvlib.class.php');
2703 $delimiter = csv_import_reader::get_delimiter($delimiter_name);
2704 $filename = clean_filename("{$dataname}-{$count}_record");
2708 $filename .= clean_filename('-' . gmdate("Ymd_Hi"));
2709 $filename .= clean_filename("-{$delimiter_name}_separated");
2710 $filename .= '.csv';
2711 if (empty($return)) {
2712 header("Content-Type: application/download\n");
2713 header("Content-Disposition: attachment; filename=$filename");
2714 header('Expires: 0');
2715 header('Cache-Control: must-revalidate,post-check=0,pre-check=0');
2716 header('Pragma: public');
2718 $encdelim = '&#' . ord($delimiter) . ';';
2720 foreach($export as $row) {
2721 foreach($row as $key => $column) {
2722 $row[$key] = str_replace($delimiter, $encdelim, $column);
2724 $returnstr .= implode($delimiter, $row) . "\n";
2726 if (empty($return)) {
2735 * @param array $export
2736 * @param string $dataname
2740 function data_export_xls($export, $dataname, $count) {
2742 require_once("$CFG->libdir/excellib.class.php");
2743 $filename = clean_filename("{$dataname}-{$count}_record");
2747 $filename .= clean_filename('-' . gmdate("Ymd_Hi"));
2748 $filename .= '.xls';
2751 $workbook = new MoodleExcelWorkbook($filearg);
2752 $workbook->send($filename);
2753 $worksheet = array();
2754 $worksheet[0] =& $workbook->add_worksheet('');
2756 foreach ($export as $row) {
2758 foreach($row as $col) {
2759 $worksheet[0]->write($rowno, $colno, $col);
2770 * @param array $export
2771 * @param string $dataname
2775 function data_export_ods($export, $dataname, $count) {
2777 require_once("$CFG->libdir/odslib.class.php");
2778 $filename = clean_filename("{$dataname}-{$count}_record");
2782 $filename .= clean_filename('-' . gmdate("Ymd_Hi"));
2783 $filename .= '.ods';
2785 $workbook = new MoodleODSWorkbook($filearg);
2786 $workbook->send($filename);
2787 $worksheet = array();
2788 $worksheet[0] =& $workbook->add_worksheet('');
2790 foreach ($export as $row) {
2792 foreach($row as $col) {
2793 $worksheet[0]->write($rowno, $colno, $col);
2804 * @param int $dataid
2805 * @param array $fields
2806 * @param array $selectedfields
2809 function data_get_exportdata($dataid, $fields, $selectedfields) {
2812 $exportdata = array();
2814 // populate the header in first row of export
2815 foreach($fields as $key => $field) {
2816 if (!in_array($field->field->id, $selectedfields)) {
2817 // ignore values we aren't exporting
2818 unset($fields[$key]);
2820 $exportdata[0][] = $field->field->name;
2824 $datarecords = $DB->get_records('data_records', array('dataid'=>$dataid));
2825 ksort($datarecords);
2827 foreach($datarecords as $record) {
2828 // get content indexed by fieldid
2829 if( $content = $DB->get_records('data_content', array('recordid'=>$record->id), 'fieldid', 'fieldid, content, content1, content2, content3, content4') ) {
2830 foreach($fields as $field) {
2832 if(isset($content[$field->field->id])) {
2833 $contents = $field->export_text_value($content[$field->field->id]);
2835 $exportdata[$line][] = $contents;
2845 * Lists all browsable file areas
2847 * @param object $course
2849 * @param object $context
2852 function data_get_file_areas($course, $cm, $context) {
2858 * Serves the data attachments. Implements needed access control ;-)
2860 * @param object $course
2862 * @param object $context
2863 * @param string $filearea
2864 * @param array $args
2865 * @param bool $forcedownload
2866 * @return bool false if file not found, does not return if found - justsend the file
2868 function data_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload) {
2871 if ($context->contextlevel != CONTEXT_MODULE) {
2875 require_course_login($course, true, $cm);
2877 if ($filearea === 'content') {
2878 $contentid = (int)array_shift($args);
2880 if (!$content = $DB->get_record('data_content', array('id'=>$contentid))) {
2884 if (!$field = $DB->get_record('data_fields', array('id'=>$content->fieldid))) {
2888 if (!$record = $DB->get_record('data_records', array('id'=>$content->recordid))) {
2892 if (!$data = $DB->get_record('data', array('id'=>$field->dataid))) {
2896 if ($data->id != $cm->instance) {
2897 // hacker attempt - context does not match the contentid
2902 if ($data->approval and !$record->approved and !data_isowner($record) and !has_capability('mod/data:approve', $context)) {
2907 if ($record->groupid) {
2908 $groupmode = groups_get_activity_groupmode($cm, $course);
2909 if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
2910 if (!groups_is_member($record->groupid)) {
2916 $fieldobj = data_get_field($field, $data, $cm);
2918 $relativepath = implode('/', $args);
2919 $fullpath = "/$context->id/mod_data/content/$content->id/$relativepath";
2921 if (!$fieldobj->file_ok($relativepath)) {
2925 $fs = get_file_storage();
2926 if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
2930 // finally send the file
2931 send_stored_file($file, 0, 0, true); // download MUST be forced - security!
2938 function data_extend_navigation($navigation, $course, $module, $cm) {
2939 global $CFG, $OUTPUT, $USER, $DB;
2941 $rid = optional_param('rid', 0, PARAM_INT);
2943 $data = $DB->get_record('data', array('id'=>$cm->instance));
2944 $currentgroup = groups_get_activity_group($cm);
2945 $groupmode = groups_get_activity_groupmode($cm);
2947 $numentries = data_numentries($data);
2948 /// Check the number of entries required against the number of entries already made (doesn't apply to teachers)
2949 if ($data->requiredentries > 0 && $numentries < $data->requiredentries && !has_capability('mod/data:manageentries', get_context_instance(CONTEXT_MODULE, $cm->id))) {
2950 $data->entriesleft = $data->requiredentries - $numentries;
2951 $entriesnode = $navigation->add(get_string('entrieslefttoadd', 'data', $data));
2952 $entriesnode->add_class('note');
2955 $navigation->add(get_string('list', 'data'), new moodle_url('/mod/data/view.php', array('d'=>$cm->instance)));
2957 $navigation->add(get_string('single', 'data'), new moodle_url('/mod/data/view.php', array('d'=>$cm->instance, 'rid'=>$rid)));
2959 $navigation->add(get_string('single', 'data'), new moodle_url('/mod/data/view.php', array('d'=>$cm->instance, 'mode'=>'single')));
2961 $navigation->add(get_string('search', 'data'), new moodle_url('/mod/data/view.php', array('d'=>$cm->instance, 'mode'=>'asearch')));
2965 * Adds module specific settings to the settings block
2967 * @param settings_navigation $settings The settings navigation object
2968 * @param navigation_node $datanode The node to add module settings to
2970 function data_extend_settings_navigation(settings_navigation $settings, navigation_node $datanode) {
2971 global $PAGE, $DB, $CFG, $USER;
2973 $data = $DB->get_record('data', array("id" => $PAGE->cm->instance));
2975 $currentgroup = groups_get_activity_group($PAGE->cm);
2976 $groupmode = groups_get_activity_groupmode($PAGE->cm);
2978 if (data_user_can_add_entry($data, $currentgroup, $groupmode, $PAGE->cm->context)) { // took out participation list here!
2979 if (empty($editentry)) { //TODO: undefined
2980 $addstring = get_string('add', 'data');
2982 $addstring = get_string('editentry', 'data');
2984 $datanode->add($addstring, new moodle_url('/mod/data/edit.php', array('d'=>$PAGE->cm->instance)));
2987 if (has_capability(DATA_CAP_EXPORT, $PAGE->cm->context)) {
2988 // The capability required to Export database records is centrally defined in 'lib.php'
2989 // and should be weaker than those required to edit Templates, Fields and Presets.
2990 $datanode->add(get_string('exportentries', 'data'), new moodle_url('/mod/data/export.php', array('d'=>$data->id)));
2992 if (has_capability('mod/data:manageentries', $PAGE->cm->context)) {
2993 $datanode->add(get_string('importentries', 'data'), new moodle_url('/mod/data/import.php', array('d'=>$data->id)));
2996 if (has_capability('mod/data:managetemplates', $PAGE->cm->context)) {
2998 if ($currenttab == 'list') {
2999 $defaultemplate = 'listtemplate';
3000 } else if ($currenttab == 'add') {
3001 $defaultemplate = 'addtemplate';
3002 } else if ($currenttab == 'asearch') {
3003 $defaultemplate = 'asearchtemplate';
3005 $defaultemplate = 'singletemplate';
3008 $templates = $datanode->add(get_string('templates', 'data'));
3010 $templatelist = array ('listtemplate', 'singletemplate', 'asearchtemplate', 'addtemplate', 'rsstemplate', 'csstemplate', 'jstemplate');
3011 foreach ($templatelist as $template) {
3012 $templates->add(get_string($template, 'data'), new moodle_url('/mod/data/templates.php', array('d'=>$data->id,'mode'=>$template)));
3015 $datanode->add(get_string('fields', 'data'), new moodle_url('/mod/data/field.php', array('d'=>$data->id)));
3016 $datanode->add(get_string('presets', 'data'), new moodle_url('/mod/data/preset.php', array('d'=>$data->id)));
3019 if (!empty($CFG->enablerssfeeds) && !empty($CFG->data_enablerssfeeds) && $data->rssarticles > 0) {
3020 require_once("$CFG->libdir/rsslib.php");
3022 $string = get_string('rsstype','forum');
3024 $url = new moodle_url(rss_get_url($PAGE->cm->context->id, $USER->id, 'mod_data', $data->id));
3025 $datanode->add($string, $url, settings_navigation::TYPE_SETTING, null, null, new pix_icon('i/rss', ''));
3030 * Save the database configuration as a preset.
3032 * @param stdClass $course The course the database module belongs to.
3033 * @param stdClass $cm The course module record
3034 * @param stdClass $data The database record
3035 * @param string $path
3038 function data_presets_save($course, $cm, $data, $path) {
3039 $fs = get_file_storage();
3040 $filerecord = new stdClass;
3041 $filerecord->contextid = DATA_PRESET_CONTEXT;
3042 $filerecord->component = DATA_PRESET_COMPONENT;
3043 $filerecord->filearea = DATA_PRESET_FILEAREA;
3044 $filerecord->itemid = 0;
3045 $filerecord->filepath = '/'.$path.'/';
3047 $filerecord->filename = 'preset.xml';
3048 $fs->create_file_from_string($filerecord, data_presets_generate_xml($course, $cm, $data));
3050 $filerecord->filename = 'singletemplate.html';
3051 $fs->create_file_from_string($filerecord, $data->singletemplate);
3053 $filerecord->filename = 'listtemplateheader.html';
3054 $fs->create_file_from_string($filerecord, $data->listtemplateheader);
3056 $filerecord->filename = 'listtemplate.html';
3057 $fs->create_file_from_string($filerecord, $data->listtemplate);
3059 $filerecord->filename = 'listtemplatefooter.html';
3060 $fs->create_file_from_string($filerecord, $data->listtemplatefooter);
3062 $filerecord->filename = 'addtemplate.html';
3063 $fs->create_file_from_string($filerecord, $data->addtemplate);
3065 $filerecord->filename = 'rsstemplate.html';
3066 $fs->create_file_from_string($filerecord, $data->rsstemplate);
3068 $filerecord->filename = 'rsstitletemplate.html';
3069 $fs->create_file_from_string($filerecord, $data->rsstitletemplate);
3071 $filerecord->filename = 'csstemplate.css';
3072 $fs->create_file_from_string($filerecord, $data->csstemplate);
3074 $filerecord->filename = 'jstemplate.js';
3075 $fs->create_file_from_string($filerecord, $data->jstemplate);
3077 $filerecord->filename = 'asearchtemplate.html';
3078 $fs->create_file_from_string($filerecord, $data->asearchtemplate);
3084 * Generates the XML for the database module provided
3086 * @global moodle_database $DB
3087 * @param stdClass $course The course the database module belongs to.
3088 * @param stdClass $cm The course module record
3089 * @param stdClass $data The database record
3090 * @return string The XML for the preset
3092 function data_presets_generate_xml($course, $cm, $data) {
3095 // Assemble "preset.xml":
3096 $presetxmldata = "<preset>\n\n";
3098 // Raw settings are not preprocessed during saving of presets
3099 $raw_settings = array(
3103 'requiredentriestoview',
3110 $presetxmldata .= "<settings>\n";
3111 // First, settings that do not require any conversion
3112 foreach ($raw_settings as $setting) {
3113 $presetxmldata .= "<$setting>" . htmlspecialchars($data->$setting) . "</$setting>\n";
3116 // Now specific settings
3117 if ($data->defaultsort > 0 && $sortfield = data_get_field_from_id($data->defaultsort, $data)) {
3118 $presetxmldata .= '<defaultsort>' . htmlspecialchars($sortfield->field->name) . "</defaultsort>\n";
3120 $presetxmldata .= "<defaultsort>0</defaultsort>\n";
3122 $presetxmldata .= "</settings>\n\n";
3123 // Now for the fields. Grab all that are non-empty
3124 $fields = $DB->get_records('data_fields', array('dataid'=>$data->id));
3126 if (!empty($fields)) {
3127 foreach ($fields as $field) {
3128 $presetxmldata .= "<field>\n";
3129 foreach ($field as $key => $value) {
3130 if ($value != '' && $key != 'id' && $key != 'dataid') {
3131 $presetxmldata .= "<$key>" . htmlspecialchars($value) . "</$key>\n";
3134 $presetxmldata .= "</field>\n\n";
3137 $presetxmldata .= '</preset>';
3138 return $presetxmldata;
3141 function data_presets_export($course, $cm, $data, $tostorage=false) {
3144 $presetname = clean_filename($data->name) . '-preset-' . gmdate("Ymd_Hi");
3145 $exportsubdir = "mod_data/presetexport/$presetname";
3146 make_temp_directory($exportsubdir);
3147 $exportdir = "$CFG->tempdir/$exportsubdir";
3149 // Assemble "preset.xml":
3150 $presetxmldata = data_presets_generate_xml($course, $cm, $data);
3152 // After opening a file in write mode, close it asap
3153 $presetxmlfile = fopen($exportdir . '/preset.xml', 'w');
3154 fwrite($presetxmlfile, $presetxmldata);
3155 fclose($presetxmlfile);
3157 // Now write the template files
3158 $singletemplate = fopen($exportdir . '/singletemplate.html', 'w');
3159 fwrite($singletemplate, $data->singletemplate);
3160 fclose($singletemplate);
3162 $listtemplateheader = fopen($exportdir . '/listtemplateheader.html', 'w');
3163 fwrite($listtemplateheader, $data->listtemplateheader);
3164 fclose($listtemplateheader);
3166 $listtemplate = fopen($exportdir . '/listtemplate.html', 'w');
3167 fwrite($listtemplate, $data->listtemplate);
3168 fclose($listtemplate);
3170 $listtemplatefooter = fopen($exportdir . '/listtemplatefooter.html', 'w');
3171 fwrite($listtemplatefooter, $data->listtemplatefooter);
3172 fclose($listtemplatefooter);
3174 $addtemplate = fopen($exportdir . '/addtemplate.html', 'w');
3175 fwrite($addtemplate, $data->addtemplate);
3176 fclose($addtemplate);
3178 $rsstemplate = fopen($exportdir . '/rsstemplate.html', 'w');
3179 fwrite($rsstemplate, $data->rsstemplate);
3180 fclose($rsstemplate);
3182 $rsstitletemplate = fopen($exportdir . '/rsstitletemplate.html', 'w');
3183 fwrite($rsstitletemplate, $data->rsstitletemplate);
3184 fclose($rsstitletemplate);
3186 $csstemplate = fopen($exportdir . '/csstemplate.css', 'w');
3187 fwrite($csstemplate, $data->csstemplate);
3188 fclose($csstemplate);
3190 $jstemplate = fopen($exportdir . '/jstemplate.js', 'w');
3191 fwrite($jstemplate, $data->jstemplate);
3192 fclose($jstemplate);
3194 $asearchtemplate = fopen($exportdir . '/asearchtemplate.html', 'w');
3195 fwrite($asearchtemplate, $data->asearchtemplate);
3196 fclose($asearchtemplate);
3198 // Check if all files have been generated
3199 if (! is_directory_a_preset($exportdir)) {
3200 print_error('generateerror', 'data');
3205 'singletemplate.html',
3206 'listtemplateheader.html',
3207 'listtemplate.html',
3208 'listtemplatefooter.html',
3211 'rsstitletemplate.html',
3214 'asearchtemplate.html'
3217 $filelist = array();
3218 foreach ($filenames as $filename) {
3219 $filelist[$filename] = $exportdir . '/' . $filename;
3222 $exportfile = $exportdir.'.zip';
3223 file_exists($exportfile) && unlink($exportfile);
3225 $fp = get_file_packer('application/zip');
3226 $fp->archive_to_pathname($filelist, $exportfile);
3228 foreach ($filelist as $file) {
3233 // Return the full path to the exported preset file:
3238 * Running addtional permission check on plugin, for example, plugins
3239 * may have switch to turn on/off comments option, this callback will
3240 * affect UI display, not like pluginname_comment_validate only throw
3242 * Capability check has been done in comment->check_permissions(), we
3243 * don't need to do it again here.
3245 * @param stdClass $comment_param {
3246 * context => context the context object
3247 * courseid => int course id
3248 * cm => stdClass course module object
3249 * commentarea => string comment area
3250 * itemid => int itemid
3254 function data_comment_permissions($comment_param) {
3256 if (!$record = $DB->get_record('data_records', array('id'=>$comment_param->itemid))) {
3257 throw new comment_exception('invalidcommentitemid');
3259 if (!$data = $DB->get_record('data', array('id'=>$record->dataid))) {
3260 throw new comment_exception('invalidid', 'data');
3262 if ($data->comments) {
3263 return array('post'=>true, 'view'=>true);
3265 return array('post'=>false, 'view'=>false);
3270 * Validate comment parameter before perform other comments actions
3272 * @param stdClass $comment_param {
3273 * context => context the context object
3274 * courseid => int course id
3275 * cm => stdClass course module object
3276 * commentarea => string comment area
3277 * itemid => int itemid
3281 function data_comment_validate($comment_param) {
3283 // validate comment area
3284 if ($comment_param->commentarea != 'database_entry') {
3285 throw new comment_exception('invalidcommentarea');
3288 if (!$record = $DB->get_record('data_records', array('id'=>$comment_param->itemid))) {
3289 throw new comment_exception('invalidcommentitemid');
3291 if (!$data = $DB->get_record('data', array('id'=>$record->dataid))) {
3292 throw new comment_exception('invalidid', 'data');
3294 if (!$course = $DB->get_record('course', array('id'=>$data->course))) {
3295 throw new comment_exception('coursemisconf');
3297 if (!$cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
3298 throw new comment_exception('invalidcoursemodule');
3300 if (!$data->comments) {
3301 throw new comment_exception('commentsoff', 'data');
3303 $context = get_context_instance(CONTEXT_MODULE, $cm->id);
3306 if ($data->approval and !$record->approved and !data_isowner($record) and !has_capability('mod/data:approve', $context)) {
3307 throw new comment_exception('notapproved', 'data');
3311 if ($record->groupid) {
3312 $groupmode = groups_get_activity_groupmode($cm, $course);
3313 if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
3314 if (!groups_is_member($record->groupid)) {
3315 throw new comment_exception('notmemberofgroup');
3319 // validate context id
3320 if ($context->id != $comment_param->context->id) {
3321 throw new comment_exception('invalidcontext');
3323 // validation for comment deletion
3324 if (!empty($comment_param->commentid)) {
3325 if ($comment = $DB->get_record('comments', array('id'=>$comment_param->commentid))) {
3326 if ($comment->commentarea != 'database_entry') {
3327 throw new comment_exception('invalidcommentarea');
3329 if ($comment->contextid != $comment_param->context->id) {
3330 throw new comment_exception('invalidcontext');
3332 if ($comment->itemid != $comment_param->itemid) {
3333 throw new comment_exception('invalidcommentitemid');
3336 throw new comment_exception('invalidcommentid');
3343 * Return a list of page types
3344 * @param string $pagetype current page type
3345 * @param stdClass $parentcontext Block's parent context
3346 * @param stdClass $currentcontext Current context of block
3348 function data_page_type_list($pagetype, $parentcontext, $currentcontext) {
3349 $module_pagetype = array('mod-data-*'=>get_string('page-mod-data-x', 'data'));
3350 return $module_pagetype;