Andreas Grabs
554 lines
19 KiB
PHP
554 lines
19 KiB
PHP
<?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 $sep_dec, $sep_thous;
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private $commonparams;
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private $item_form;
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private $item;
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public function init() {
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$this->sep_dec = get_string('separator_decimal', 'feedback');
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if (substr($this->sep_dec, 0, 2) == '[[') {
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$this->sep_dec = FEEDBACK_DECIMAL;
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}
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$this->sep_thous = get_string('separator_thousand', 'feedback');
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if (substr($this->sep_thous, 0, 2) == '[[') {
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$this->sep_thous = FEEDBACK_THOUSAND;
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}
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}
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public function build_editform($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 = str_replace(FEEDBACK_DECIMAL,
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$this->sep_dec,
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floatval($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 = str_replace(FEEDBACK_DECIMAL,
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$this->sep_dec,
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floatval($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', $customdata);
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}
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//this function only can used after the call of build_editform()
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public function show_editform() {
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$this->item_form->display();
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}
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public function is_cancelled() {
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return $this->item_form->is_cancelled();
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}
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public function get_data() {
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if ($this->item = $this->item_form->get_data()) {
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return true;
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}
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return false;
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}
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public function save_item() {
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global $DB;
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if (!$item = $this->item_form->get_data()) {
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return false;
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}
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if (isset($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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//liefert eine Struktur ->name, ->data = array(mit Antworten)
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public 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 / $counter : 0;
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$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 '<tr><th colspan="2" align="left">';
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echo $itemnr.' ('.$item->label.') '.$item->name;
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echo '</th></tr>';
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foreach ($values->data as $value) {
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echo '<tr><td colspan="2" valign="top" align="left">';
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echo '- '.number_format($value, 2, $this->sep_dec, $this->sep_thous);
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echo '</td></tr>';
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}
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if (isset($values->avg)) {
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$avg = number_format($values->avg, 2, $this->sep_dec, $this->sep_thous);
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} else {
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$avg = number_format(0, 2, $this->sep_dec, $this->sep_thous);
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}
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echo '<tr><td align="left" colspan="2"><b>';
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echo get_string('average', 'feedback').': '.$avg;
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echo '</b></td></tr>';
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}
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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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//mittelwert anzeigen
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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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$xls_formats->value_bold);
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$worksheet->write_number($row_offset + 1,
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2,
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$analysed_item->avg,
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$xls_formats->value_bold);
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$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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* print the item at the edit-page of feedback
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*
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* @global object
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* @param object $item
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* @return void
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*/
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public function print_item_preview($item) {
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global $OUTPUT, $DB;
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$align = right_to_left() ? 'right' : 'left';
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$str_required_mark = '<span class="feedback_required_mark">*</span>';
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//get the range
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$range_from_to = explode('|', $item->presentation);
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//get the min-value
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if (isset($range_from_to[0]) AND is_numeric($range_from_to[0])) {
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$range_from = floatval($range_from_to[0]);
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} else {
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$range_from = 0;
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}
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//get the max-value
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if (isset($range_from_to[1]) AND is_numeric($range_from_to[1])) {
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$range_to = floatval($range_from_to[1]);
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} else {
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$range_to = 0;
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}
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$requiredmark = ($item->required == 1) ? $str_required_mark : '';
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//print the question and label
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echo '<div class="feedback_item_label_'.$align.'">';
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echo '('.$item->label.') ';
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echo format_text($item->name . $requiredmark, true, false, false);
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if ($item->dependitem) {
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$params = array('id'=>$item->dependitem);
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if ($dependitem = $DB->get_record('feedback_item', $params)) {
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echo ' <span class="feedback_depend">';
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echo '('.$dependitem->label.'->'.$item->dependvalue.')';
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echo '</span>';
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}
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}
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echo '<span class="feedback_item_numinfo">';
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switch(true) {
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case ($range_from === '-' AND is_numeric($range_to)):
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echo ' ('.get_string('maximal', 'feedback').
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': '.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_to).')';
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break;
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case (is_numeric($range_from) AND $range_to === '-'):
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echo ' ('.get_string('minimal', 'feedback').
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': '.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_from).')';
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break;
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case ($range_from === '-' AND $range_to === '-'):
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break;
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default:
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echo ' ('.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_from).
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' - '.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_to).')';
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break;
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}
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echo '</span>';
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echo '</div>';
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//print the presentation
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echo '<div class="feedback_item_presentation_'.$align.'">';
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echo '<span class="feedback_item_textfield">';
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echo '<input type="text" '.
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'name="'.$item->typ.'_'.$item->id.'" '.
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'size="10" '.
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'maxlength="10" '.
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'value="" />';
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echo '</span>';
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echo '</div>';
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}
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/**
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* print the item at the complete-page of feedback
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*
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* @global object
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* @param object $item
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* @param string $value
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* @param bool $highlightrequire
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* @return void
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*/
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public function print_item_complete($item, $value = '', $highlightrequire = false) {
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global $OUTPUT;
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$align = right_to_left() ? 'right' : 'left';
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$str_required_mark = '<span class="feedback_required_mark">*</span>';
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//get the range
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$range_from_to = explode('|', $item->presentation);
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//get the min-value
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if (isset($range_from_to[0]) AND is_numeric($range_from_to[0])) {
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$range_from = floatval($range_from_to[0]);
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} else {
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$range_from = 0;
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}
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//get the max-value
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if (isset($range_from_to[1]) AND is_numeric($range_from_to[1])) {
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$range_to = floatval($range_from_to[1]);
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} else {
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$range_to = 0;
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}
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if ($highlightrequire AND (!$this->check_value($value, $item))) {
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$highlight = ' missingrequire';
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} else {
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$highlight = '';
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}
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$requiredmark = ($item->required == 1) ? $str_required_mark : '';
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//print the question and label
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echo '<div class="feedback_item_label_'.$align.$highlight.'">';
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echo format_text($item->name . $requiredmark, true, false, false);
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echo '<span class="feedback_item_numinfo">';
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switch(true) {
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case ($range_from === '-' AND is_numeric($range_to)):
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echo ' ('.get_string('maximal', 'feedback').
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': '.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_to).')';
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break;
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case (is_numeric($range_from) AND $range_to === '-'):
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echo ' ('.get_string('minimal', 'feedback').
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': '.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_from).')';
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break;
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case ($range_from === '-' AND $range_to === '-'):
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break;
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default:
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echo ' ('.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_from).
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' - '.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_to).')';
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break;
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}
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echo '</span>';
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echo '</div>';
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//print the presentation
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echo '<div class="feedback_item_presentation_'.$align.$highlight.'">';
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echo '<span class="feedback_item_textfield">';
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echo '<input type="text" '.
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'name="'.$item->typ.'_'.$item->id.'" '.
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'size="10" '.
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'maxlength="10" '.
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'value="'.$value.'" />';
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echo '</span>';
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echo '</div>';
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}
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/**
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* print the item at the complete-page of feedback
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*
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* @global object
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* @param object $item
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* @param string $value
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* @return void
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*/
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public function print_item_show_value($item, $value = '') {
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global $OUTPUT;
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$align = right_to_left() ? 'right' : 'left';
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$str_required_mark = '<span class="feedback_required_mark">*</span>';
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//get the range
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$range_from_to = explode('|', $item->presentation);
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//get the min-value
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if (isset($range_from_to[0]) AND is_numeric($range_from_to[0])) {
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$range_from = floatval($range_from_to[0]);
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} else {
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$range_from = 0;
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}
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//get the max-value
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if (isset($range_from_to[1]) AND is_numeric($range_from_to[1])) {
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$range_to = floatval($range_from_to[1]);
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} else {
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$range_to = 0;
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}
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$requiredmark = ($item->required == 1) ? $str_required_mark : '';
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//print the question and label
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echo '<div class="feedback_item_label_'.$align.'">';
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echo '('.$item->label.') ';
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echo format_text($item->name . $requiredmark, true, false, false);
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switch(true) {
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case ($range_from === '-' AND is_numeric($range_to)):
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echo ' ('.get_string('maximal', 'feedback').
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': '.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_to).')';
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break;
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case (is_numeric($range_from) AND $range_to === '-'):
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echo ' ('.get_string('minimal', 'feedback').
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': '.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_from).')';
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break;
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case ($range_from === '-' AND $range_to === '-'):
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break;
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default:
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echo ' ('.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_from).
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' - '.str_replace(FEEDBACK_DECIMAL, $this->sep_dec, $range_to).')';
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break;
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}
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echo '</div>';
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//print the presentation
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echo '<div class="feedback_item_presentation_'.$align.'">';
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echo $OUTPUT->box_start('generalbox boxalign'.$align);
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if (is_numeric($value)) {
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$str_num_value = number_format($value, 2, $this->sep_dec, $this->sep_thous);
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} else {
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$str_num_value = ' ';
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}
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echo $str_num_value;
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echo $OUTPUT->box_end();
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echo '</div>';
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}
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public function check_value($value, $item) {
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$value = str_replace($this->sep_dec, FEEDBACK_DECIMAL, $value);
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//if the item is not required, so the check is true if no value is given
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if ((!isset($value) OR $value == '') AND $item->required != 1) {
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return true;
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}
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if (!is_numeric($value)) {
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return false;
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}
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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 = floatval($range_from_to[0]);
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} else {
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$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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$range_to = floatval($range_from_to[1]);
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} else {
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$range_to = '-';
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}
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switch(true) {
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case ($range_from === '-' AND is_numeric($range_to)):
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if (floatval($value) <= $range_to) {
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return true;
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}
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break;
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case (is_numeric($range_from) AND $range_to === '-'):
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if (floatval($value) >= $range_from) {
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return true;
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}
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break;
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case ($range_from === '-' AND $range_to === '-'):
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return true;
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break;
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default:
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if (floatval($value) >= $range_from AND floatval($value) <= $range_to) {
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return true;
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}
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break;
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}
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return false;
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}
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public function create_value($data) {
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$data = str_replace($this->sep_dec, FEEDBACK_DECIMAL, $data);
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if (is_numeric($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 $data;
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}
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//compares the dbvalue with the dependvalue
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//dbvalue is the number put in by the user
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//dependvalue is the value that is compared
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public function compare_value($item, $dbvalue, $dependvalue) {
|
|
if ($dbvalue == $dependvalue) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function get_presentation($data) {
|
|
$num1 = str_replace($this->sep_dec, FEEDBACK_DECIMAL, $data->numericrangefrom);
|
|
if (is_numeric($num1)) {
|
|
$num1 = floatval($num1);
|
|
} else {
|
|
$num1 = '-';
|
|
}
|
|
|
|
$num2 = str_replace($this->sep_dec, FEEDBACK_DECIMAL, $data->numericrangeto);
|
|
if (is_numeric($num2)) {
|
|
$num2 = floatval($num2);
|
|
} else {
|
|
$num2 = '-';
|
|
}
|
|
|
|
if ($num1 === '-' OR $num2 === '-') {
|
|
return $num1 . '|'. $num2;
|
|
}
|
|
|
|
if ($num1 > $num2) {
|
|
return $num2 . '|'. $num1;
|
|
} else {
|
|
return $num1 . '|'. $num2;
|
|
}
|
|
}
|
|
|
|
public function get_hasvalue() {
|
|
return 1;
|
|
}
|
|
|
|
public function can_switch_require() {
|
|
return true;
|
|
}
|
|
|
|
public function value_type() {
|
|
return PARAM_FLOAT;
|
|
}
|
|
|
|
public function clean_input_value($value) {
|
|
$value = str_replace($this->sep_dec, FEEDBACK_DECIMAL, $value);
|
|
if (!is_numeric($value)) {
|
|
if ($value == '') {
|
|
return null; //an empty string should be null
|
|
} else {
|
|
return clean_param($value, PARAM_TEXT); //we have to know the value if it is wrong
|
|
}
|
|
}
|
|
return clean_param($value, $this->value_type());
|
|
}
|
|
}
|