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329 lines
12 KiB
329 lines
12 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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defined('MOODLE_INTERNAL') OR die('not allowed');
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require_once($CFG->dirroot.'/mod/feedback/item/feedback_item_class.php');
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class feedback_item_numeric extends feedback_item_base {
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protected $type = "numeric";
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public function build_editform($item, $feedback, $cm) {
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global $DB, $CFG;
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require_once('numeric_form.php');
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//get the lastposition number of the feedback_items
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$position = $item->position;
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$lastposition = $DB->count_records('feedback_item', array('feedback'=>$feedback->id));
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if ($position == -1) {
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$i_formselect_last = $lastposition + 1;
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$i_formselect_value = $lastposition + 1;
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$item->position = $lastposition + 1;
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} else {
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$i_formselect_last = $lastposition;
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$i_formselect_value = $item->position;
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}
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//the elements for position dropdownlist
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$positionlist = array_slice(range(0, $i_formselect_last), 1, $i_formselect_last, true);
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$item->presentation = empty($item->presentation) ? '' : $item->presentation;
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$range_from_to = explode('|', $item->presentation);
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if (isset($range_from_to[0]) AND is_numeric($range_from_to[0])) {
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$range_from = $this->format_float($range_from_to[0]);
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} else {
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$range_from = '-';
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}
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if (isset($range_from_to[1]) AND is_numeric($range_from_to[1])) {
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$range_to = $this->format_float($range_from_to[1]);
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} else {
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$range_to = '-';
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}
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$item->rangefrom = $range_from;
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$item->rangeto = $range_to;
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//all items for dependitem
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$feedbackitems = feedback_get_depend_candidates_for_item($feedback, $item);
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$commonparams = array('cmid'=>$cm->id,
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'id'=>isset($item->id) ? $item->id : null,
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'typ'=>$item->typ,
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'items'=>$feedbackitems,
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'feedback'=>$feedback->id);
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//build the form
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$customdata = array('item' => $item,
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'common' => $commonparams,
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'positionlist' => $positionlist,
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'position' => $position);
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$this->item_form = new feedback_numeric_form('edit_item.php', $customdata);
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}
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public function save_item() {
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global $DB;
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if (!$this->get_data()) {
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return false;
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}
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$item = $this->item;
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if (isset($item->clone_item) AND $item->clone_item) {
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$item->id = ''; //to clone this item
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$item->position++;
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}
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$item->hasvalue = $this->get_hasvalue();
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if (!$item->id) {
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$item->id = $DB->insert_record('feedback_item', $item);
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} else {
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$DB->update_record('feedback_item', $item);
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}
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return $DB->get_record('feedback_item', array('id'=>$item->id));
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}
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/**
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* Helper function for collected data, both for analysis page and export to excel
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*
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* @param stdClass $item the db-object from feedback_item
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* @param int $groupid
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* @param int $courseid
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* @return stdClass
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*/
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protected function get_analysed($item, $groupid = false, $courseid = false) {
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global $DB;
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$analysed = new stdClass();
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$analysed->data = array();
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$analysed->name = $item->name;
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$values = feedback_get_group_values($item, $groupid, $courseid);
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$avg = 0.0;
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$counter = 0;
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if ($values) {
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$data = array();
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foreach ($values as $value) {
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if (is_numeric($value->value)) {
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$data[] = $value->value;
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$avg += $value->value;
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$counter++;
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}
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}
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$avg = $counter > 0 ? $avg / $counter : null;
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$analysed->data = $data;
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$analysed->avg = $avg;
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}
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return $analysed;
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}
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public function get_printval($item, $value) {
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if (!isset($value->value)) {
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return '';
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}
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return $value->value;
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}
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public function print_analysed($item, $itemnr = '', $groupid = false, $courseid = false) {
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$values = $this->get_analysed($item, $groupid, $courseid);
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if (isset($values->data) AND is_array($values->data)) {
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echo "<table class=\"analysis itemtype_{$item->typ}\">";
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echo '<tr><th colspan="2" align="left">';
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echo $itemnr . ' ';
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if (strval($item->label) !== '') {
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echo '('. format_string($item->label).') ';
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}
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echo format_text($item->name, FORMAT_HTML, array('noclean' => true, 'para' => false));
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echo '</th></tr>';
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foreach ($values->data as $value) {
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echo '<tr><td colspan="2" class="singlevalue">';
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echo $this->format_float($value);
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echo '</td></tr>';
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}
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if (isset($values->avg)) {
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$avg = format_float($values->avg, 2);
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} else {
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$avg = '-';
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}
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echo '<tr><td colspan="2"><b>';
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echo get_string('average', 'feedback').': '.$avg;
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echo '</b></td></tr>';
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echo '</table>';
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}
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}
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public function excelprint_item(&$worksheet, $row_offset,
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$xls_formats, $item,
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$groupid, $courseid = false) {
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$analysed_item = $this->get_analysed($item, $groupid, $courseid);
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$worksheet->write_string($row_offset, 0, $item->label, $xls_formats->head2);
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$worksheet->write_string($row_offset, 1, $item->name, $xls_formats->head2);
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$data = $analysed_item->data;
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if (is_array($data)) {
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// Export average.
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$worksheet->write_string($row_offset,
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2,
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get_string('average', 'feedback'),
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$xls_formats->value_bold);
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if (isset($analysed_item->avg)) {
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$worksheet->write_number($row_offset + 1,
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2,
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$analysed_item->avg,
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$xls_formats->value_bold);
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} else {
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$worksheet->write_string($row_offset + 1,
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2,
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'',
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$xls_formats->value_bold);
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}
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$row_offset++;
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}
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$row_offset++;
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return $row_offset;
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}
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/**
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* Prints the float nicely in the localized format
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*
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* Similar to format_float() but automatically calculates the number of decimal places
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*
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* @param float $value The float to print
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* @return string
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*/
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protected function format_float($value) {
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if (!is_numeric($value)) {
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return null;
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}
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$decimal = is_int($value) ? 0 : strlen(substr(strrchr($value, '.'), 1));
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return format_float($value, $decimal);
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}
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/**
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* Returns human-readable boundaries (min - max)
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* @param stdClass $item
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* @return string
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*/
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protected function get_boundaries_for_display($item) {
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list($rangefrom, $rangeto) = explode('|', $item->presentation);
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if (!isset($rangefrom) || !is_numeric($rangefrom)) {
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$rangefrom = null;
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}
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if (!isset($rangeto) || !is_numeric($rangeto)) {
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$rangeto = null;
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}
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if (is_null($rangefrom) && is_numeric($rangeto)) {
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return ' (' . get_string('maximal', 'feedback') .
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': ' . $this->format_float($rangeto) . ')';
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}
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if (is_numeric($rangefrom) && is_null($rangeto)) {
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return ' (' . get_string('minimal', 'feedback') .
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': ' . $this->format_float($rangefrom) . ')';
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}
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if (is_null($rangefrom) && is_null($rangeto)) {
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return '';
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}
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return ' (' . $this->format_float($rangefrom) .
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' - ' . $this->format_float($rangeto) . ')';
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}
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/**
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* Returns the postfix to be appended to the display name that is based on other settings
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*
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* @param stdClass $item
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* @return string
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*/
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public function get_display_name_postfix($item) {
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return html_writer::span($this->get_boundaries_for_display($item), 'boundaries');
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}
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/**
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* Adds an input element to the complete form
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*
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* @param stdClass $item
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* @param mod_feedback_complete_form $form
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*/
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public function complete_form_element($item, $form) {
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$name = $this->get_display_name($item);
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$inputname = $item->typ . '_' . $item->id;
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$form->add_form_element($item,
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['text', $inputname, $name],
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true,
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false
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);
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$form->set_element_type($inputname, PARAM_NOTAGS);
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$tmpvalue = $this->format_float($form->get_item_value($item));
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$form->set_element_default($inputname, $tmpvalue);
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// Add form validation rule to check for boundaries.
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$form->add_validation_rule(function($values, $files) use ($item) {
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$inputname = $item->typ . '_' . $item->id;
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list($rangefrom, $rangeto) = explode('|', $item->presentation);
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if (!isset($values[$inputname]) || trim($values[$inputname]) === '') {
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return $item->required ? array($inputname => get_string('required')) : true;
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}
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$value = unformat_float($values[$inputname], true);
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if ($value === false) {
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return array($inputname => get_string('invalidnum', 'error'));
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}
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if ((is_numeric($rangefrom) && $value < floatval($rangefrom)) ||
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(is_numeric($rangeto) && $value > floatval($rangeto))) {
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return array($inputname => get_string('numberoutofrange', 'feedback'));
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}
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return true;
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});
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}
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public function create_value($data) {
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$data = unformat_float($data, true);
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if (is_numeric($data)) {
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$data = floatval($data);
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} else {
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$data = '';
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}
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return $data;
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}
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/**
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* Return the analysis data ready for external functions.
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*
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* @param stdClass $item the item (question) information
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* @param int $groupid the group id to filter data (optional)
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* @param int $courseid the course id (optional)
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* @return array an array of data with non scalar types json encoded
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* @since Moodle 3.3
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*/
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public function get_analysed_for_external($item, $groupid = false, $courseid = false) {
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$externaldata = array();
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$data = $this->get_analysed($item, $groupid, $courseid);
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if (is_array($data->data)) {
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return $data->data; // No need to json, scalar type.
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}
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return $externaldata;
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}
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}
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