Current File : /home/vacivi36/ava/admin/classes/local/settings/autocomplete.php
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Auto complete admin setting.
*
* @package core_admin
* @copyright 2020 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core_admin\local\settings;
defined('MOODLE_INTERNAL') || die();
require_once($CFG->libdir . '/adminlib.php');
/**
* Auto complete setting class.
*
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @copyright 2020 The Open University
*/
class autocomplete extends \admin_setting_configmultiselect {
/** @var boolean Should we allow typing new entries to the field? */
protected $tags = false;
/** @var string Name of an AMD module to send/process ajax requests. */
protected $ajax = '';
/** @var string Placeholder text for an empty list. */
protected $placeholder = '';
/** @var bool Whether the search has to be case-sensitive. */
protected $casesensitive = false;
/** @var bool Show suggestions by default - but this can be turned off. */
protected $showsuggestions = true;
/** @var string String that is shown when there are no selections. */
protected $noselectionstring = '';
/** @var string Delimiter to store values in database. */
protected $delimiter = ',';
/** @var string Should be multiple choices? */
protected $multiple = true;
/** @var string The link to manage choices. */
protected $manageurl = true;
/** @var string The text to display in manage link. */
protected $managetext = true;
/**
* Constructor
*
* @param string $name unique ascii name, either 'mysetting' for settings that in config, or 'myplugin/mysetting'
* for ones in config_plugins.
* @param string $visiblename localised
* @param string $description long localised info
* @param array $defaultsetting array of selected items
* @param array $choices options for autocomplete field
* @param array $attributes settings for autocomplete field
*/
public function __construct($name, $visiblename, $description, $defaultsetting, $choices, $attributes = null) {
if ($attributes === null) {
$attributes = [];
}
$this->placeholder = get_string('search');
$this->noselectionstring = get_string('noselection', 'form');
$defaultattributes = [
'tags',
'showsuggestions',
'placeholder',
'noselectionstring',
'ajax',
'casesensitive',
'delimiter',
'multiple',
'manageurl',
'managetext'
];
foreach ($defaultattributes as $attributename) {
if (isset($attributes[$attributename])) {
$this->$attributename = $attributes[$attributename];
}
}
parent::__construct($name, $visiblename, $description, $defaultsetting, $choices);
}
/**
* Returns the select setting(s)
*
* @return mixed null or array. Null if no settings else array of setting(s)
*/
public function get_setting() {
$result = $this->config_read($this->name);
if (is_null($result)) {
return null;
}
if ($result === '') {
return [];
}
return explode($this->delimiter, $result);
}
/**
* Saves setting(s) provided through $data
*
* @param array $data
*/
public function write_setting($data) {
if (!is_array($data)) {
return ''; // Ignore it.
}
if (!$this->load_choices() || empty($this->choices)) {
return '';
}
unset($data['xxxxx']);
$save = [];
foreach ($data as $value) {
if (!array_key_exists($value, $this->choices)) {
continue; // Ignore it.
}
$save[] = $value;
}
return ($this->config_write($this->name, implode($this->delimiter, $save)) ? '' : get_string('errorsetting', 'admin'));
}
/**
* Returns XHTML autocomplete field
*
* @param array $data Array of values to select by default
* @param string $query
* @return string XHTML autocomplete field
*/
public function output_html($data, $query = '') {
global $OUTPUT;
if (!$this->load_choices() or empty($this->choices)) {
return '';
}
$default = $this->get_defaultsetting();
if (empty($default)) {
$default = [];
}
if (is_null($data)) {
$data = [];
}
$context = [
'id' => $this->get_id(),
'name' => $this->get_full_name()
];
$defaults = [];
$options = [];
$template = 'core_admin/local/settings/autocomplete';
foreach ($this->choices as $value => $name) {
if (in_array($value, $default)) {
$defaults[] = $name;
}
$options[] = [
'value' => $value,
'text' => $name,
'selected' => in_array($value, $data),
'disabled' => false
];
}
$context['options'] = $options;
$context['tags'] = $this->tags;
$context['placeholder'] = $this->placeholder;
$context['casesensitive'] = $this->casesensitive;
$context['multiple'] = $this->multiple;
$context['showsuggestions'] = $this->showsuggestions;
$context['manageurl'] = $this->manageurl;
$context['managetext'] = $this->managetext;
if (is_null($default)) {
$defaultinfo = null;
} if (!empty($defaults)) {
$defaultinfo = implode(', ', $defaults);
} else {
$defaultinfo = get_string('none');
}
$element = $OUTPUT->render_from_template($template, $context);
return format_admin_setting($this, $this->visiblename, $element, $this->description, true, '', $defaultinfo, $query);
}
}
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