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<?php
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///////////////////////////////////////////////////////////////////////////
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// //
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// NOTICE OF COPYRIGHT //
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// //
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// Moodle - Modular Object-Oriented Dynamic Learning Environment //
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// http://moodle.org //
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// //
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// Copyright (C) 1999-onwards Moodle Pty Ltd http://moodle.com //
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// //
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// This program 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 2 of the License, or //
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// (at your option) any later version. //
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// //
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// This program 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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// http://www.gnu.org/copyleft/gpl.html //
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// //
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///////////////////////////////////////////////////////////////////////////
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class data_field_multimenu extends data_field_base {
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var $type = 'multimenu';
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/**
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* priority for globalsearch indexing
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*
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* @var int
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* */
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protected static $priority = self::LOW_PRIORITY;
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public function supports_preview(): bool {
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return true;
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}
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public function get_data_content_preview(int $recordid): stdClass {
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$options = explode("\n", $this->field->param1);
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$options = array_map('trim', $options);
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$selected = $options[$recordid % count($options)];
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$selected .= '##' . $options[($recordid + 1) % count($options)];
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return (object)[
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'id' => 0,
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'fieldid' => $this->field->id,
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'recordid' => $recordid,
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'content' => $selected,
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'content1' => null,
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'content2' => null,
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'content3' => null,
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'content4' => null,
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];
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}
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function display_add_field($recordid = 0, $formdata = null) {
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global $DB, $OUTPUT;
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if ($formdata) {
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$fieldname = 'field_' . $this->field->id;
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if (isset($formdata->$fieldname)) {
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$content = $formdata->$fieldname;
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} else {
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$content = array();
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}
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} else if ($recordid) {
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$contentfield = $DB->get_field('data_content', 'content', ['fieldid' => $this->field->id, 'recordid' => $recordid]);
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$content = explode('##', $contentfield ?? '');
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} else {
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$content = array();
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}
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$str = '<div title="'.s($this->field->description).'">';
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$str .= '<input name="field_' . $this->field->id . '[xxx]" type="hidden" value="xxx"/>'; // hidden field - needed for empty selection
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$str .= '<label for="field_' . $this->field->id . '">';
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$str .= '<legend><span class="accesshide">' . s($this->field->name);
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if ($this->field->required) {
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$str .= ' ' . get_string('requiredelement', 'form') . '</span></legend>';
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$str .= '<div class="inline-req">';
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$str .= $OUTPUT->pix_icon('req', get_string('requiredelement', 'form'));
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$str .= '</div>';
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} else {
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$str .= '</span></legend>';
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}
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$str .= '</label>';
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$str .= '<select name="field_' . $this->field->id . '[]" id="field_' . $this->field->id . '"';
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$str .= ' multiple="multiple" class="mod-data-input form-control">';
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foreach (explode("\n", $this->field->param1) as $option) {
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$option = trim($option);
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$str .= '<option value="' . s($option) . '"';
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if (in_array($option, $content)) {
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// Selected by user.
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$str .= ' selected = "selected"';
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}
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$str .= '>';
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$str .= $option . '</option>';
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}
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$str .= '</select>';
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$str .= '</div>';
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return $str;
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}
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function display_search_field($value = '') {
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global $CFG, $DB;
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if (is_array($value)){
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$content = $value['selected'];
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$allrequired = $value['allrequired'] ? true : false;
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} else {
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$content = array();
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$allrequired = false;
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}
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static $c = 0;
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$str = '<label class="accesshide" for="f_' . $this->field->id . '">' . s($this->field->name) . '</label>';
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$str .= '<select id="f_'.$this->field->id.'" name="f_'.$this->field->id.'[]" multiple="multiple" class="form-control">';
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// display only used options
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$varcharcontent = $DB->sql_compare_text('content', 255);
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$sql = "SELECT DISTINCT $varcharcontent AS content
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FROM {data_content}
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WHERE fieldid=? AND content IS NOT NULL";
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$usedoptions = array();
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if ($used = $DB->get_records_sql($sql, array($this->field->id))) {
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foreach ($used as $data) {
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$valuestr = $data->content;
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if ($valuestr === '') {
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continue;
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}
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$values = explode('##', $valuestr);
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foreach ($values as $value) {
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$usedoptions[$value] = $value;
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}
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}
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}
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$found = false;
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foreach (explode("\n",$this->field->param1) as $option) {
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$option = trim($option);
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if (!isset($usedoptions[$option])) {
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continue;
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}
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$found = true;
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$str .= '<option value="' . s($option) . '"';
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if (in_array($option, $content)) {
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// Selected by user.
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$str .= ' selected = "selected"';
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}
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$str .= '>' . $option . '</option>';
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}
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if (!$found) {
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// oh, nothing to search for
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return '';
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}
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$str .= '</select>';
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$str .= html_writer::checkbox('f_'.$this->field->id.'_allreq', null, $allrequired,
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get_string('selectedrequired', 'data'), array('class' => 'mr-1'));
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return $str;
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}
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public function parse_search_field($defaults = null) {
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$paramselected = 'f_'.$this->field->id;
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$paramallrequired = 'f_'.$this->field->id.'_allreq';
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if (empty($defaults[$paramselected])) { // One empty means the other ones are empty too.
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$defaults = array($paramselected => array(), $paramallrequired => 0);
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}
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$selected = optional_param_array($paramselected, $defaults[$paramselected], PARAM_NOTAGS);
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$allrequired = optional_param($paramallrequired, $defaults[$paramallrequired], PARAM_BOOL);
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if (empty($selected)) {
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// no searching
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return '';
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}
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return array('selected'=>$selected, 'allrequired'=>$allrequired);
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}
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function generate_sql($tablealias, $value) {
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global $DB;
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static $i=0;
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$i++;
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$name = "df_multimenu_{$i}_";
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$params = array();
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$varcharcontent = $DB->sql_compare_text("{$tablealias}.content", 255);
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$allrequired = $value['allrequired'];
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$selected = $value['selected'];
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if ($selected) {
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$conditions = array();
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$j=0;
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foreach ($selected as $sel) {
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$j++;
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$xname = $name.$j;
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$likesel = str_replace('%', '\%', $sel);
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$likeselsel = str_replace('_', '\_', $likesel);
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$conditions[] = "({$tablealias}.fieldid = {$this->field->id} AND ({$varcharcontent} = :{$xname}a
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OR {$tablealias}.content LIKE :{$xname}b
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OR {$tablealias}.content LIKE :{$xname}c
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OR {$tablealias}.content LIKE :{$xname}d))";
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$params[$xname.'a'] = $sel;
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$params[$xname.'b'] = "$likesel##%";
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$params[$xname.'c'] = "%##$likesel";
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$params[$xname.'d'] = "%##$likesel##%";
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}
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if ($allrequired) {
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return array(" (".implode(" AND ", $conditions).") ", $params);
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} else {
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return array(" (".implode(" OR ", $conditions).") ", $params);
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}
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} else {
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return array(" ", array());
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}
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}
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function update_content($recordid, $value, $name='') {
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global $DB;
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$content = new stdClass();
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$content->fieldid = $this->field->id;
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$content->recordid = $recordid;
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$content->content = $this->format_data_field_multimenu_content($value);
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if ($oldcontent = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
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$content->id = $oldcontent->id;
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return $DB->update_record('data_content', $content);
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} else {
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return $DB->insert_record('data_content', $content);
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}
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}
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function format_data_field_multimenu_content($content) {
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if (!is_array($content)) {
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return NULL;
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}
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$options = explode("\n", $this->field->param1);
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$options = array_map('trim', $options);
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$vals = array();
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foreach ($content as $key=>$val) {
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if ($key === 'xxx') {
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continue;
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}
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if (!in_array($val, $options)) {
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continue;
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}
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$vals[] = $val;
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}
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if (empty($vals)) {
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return NULL;
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}
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return implode('##', $vals);
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}
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function display_browse_field($recordid, $template) {
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$content = $this->get_data_content($recordid);
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if (!$content || empty($content->content)) {
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return '';
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}
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$options = explode("\n", $this->field->param1);
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$options = array_map('trim', $options);
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$contentarray = explode('##', $content->content);
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$str = '';
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foreach ($contentarray as $line) {
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if (!in_array($line, $options)) {
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// Hmm, looks like somebody edited the field definition.
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continue;
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}
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$str .= $line . "<br />\n";
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}
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return $str;
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}
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/**
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* Check if a field from an add form is empty
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*
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* @param mixed $value
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* @param mixed $name
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* @return bool
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*/
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function notemptyfield($value, $name) {
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unset($value['xxx']);
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return !empty($value);
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}
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/**
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* Returns the presentable string value for a field content.
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*
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* The returned string should be plain text.
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*
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* @param stdClass $content
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* @return string
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*/
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public static function get_content_value($content) {
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$arr = explode('##', $content->content);
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$strvalue = '';
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foreach ($arr as $a) {
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$strvalue .= $a . ' ';
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}
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return trim($strvalue, "\r\n ");
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}
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/**
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* Return the plugin configs for external functions.
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*
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* @return array the list of config parameters
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* @since Moodle 3.3
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*/
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public function get_config_for_external() {
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// Return all the config parameters.
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$configs = [];
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for ($i = 1; $i <= 10; $i++) {
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$configs["param$i"] = $this->field->{"param$i"};
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}
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return $configs;
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}
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}
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