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executable file 230 lines (192 sloc) 8.635 kb
<?php // $Id$
///////////////////////////////////////////////////////////////////////////
// //
// NOTICE OF COPYRIGHT //
// //
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
// http://moodle.org //
// //
// Copyright (C) 1999-onwards Moodle Pty Ltd http://moodle.com //
// //
// This program 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 2 of the License, or //
// (at your option) any later version. //
// //
// This program 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: //
// //
// http://www.gnu.org/copyleft/gpl.html //
// //
///////////////////////////////////////////////////////////////////////////
class data_field_multimenu extends data_field_base {
var $type = 'multimenu';
function data_field_multimenu($field=0, $data=0) {
parent::data_field_base($field, $data);
}
function display_add_field($recordid=0) {
if ($recordid){
$content = get_field('data_content', 'content', 'fieldid', $this->field->id, 'recordid', $recordid);
$content = explode('##', $content);
} else {
$content = array();
}
$str = '<div title="'.s($this->field->description).'">';
$str .= '<input name="field_' . $this->field->id . '[xxx]" type="hidden" value="xxx"/>'; // hidden field - needed for empty selection
$str .= '<select name="field_' . $this->field->id . '[]" id="field_' . $this->field->id . '" multiple="multiple">';
foreach (explode("\n",$this->field->param1) as $option) {
$option = trim($option);
$str .= '<option value="' . s($option) . '"';
if (in_array($option, $content)) {
// Selected by user.
$str .= ' selected = "selected"';
}
$str .= '>';
$str .= $option . '</option>';
}
$str .= '</select>';
$str .= '</div>';
return $str;
}
function display_search_field($value = '') {
global $CFG;
if (is_array($value)){
$content = $value['selected'];
$allrequired = $value['allrequired'] ? 'checked = "checked"' : '';
} else {
$content = array();
$allrequired = '';
}
static $c = 0;
$str = '<select name="f_'.$this->field->id.'[]" multiple="multiple">';
// display only used options
$varcharcontent = sql_compare_text('content', 255);
$sql = "SELECT DISTINCT $varcharcontent AS content
FROM {$CFG->prefix}data_content
WHERE fieldid={$this->field->id} AND content IS NOT NULL";
$usedoptions = array();
if ($used = get_records_sql($sql)) {
foreach ($used as $data) {
$valuestr = $data->content;
if ($valuestr === '') {
continue;
}
$values = explode('##', $valuestr);
foreach ($values as $value) {
$usedoptions[$value] = $value;
}
}
}
$found = false;
foreach (explode("\n",$this->field->param1) as $option) {
$option = trim($option);
if (!isset($usedoptions[$option])) {
continue;
}
$found = true;
$str .= '<option value="' . s($option) . '"';
if (in_array(addslashes($option), $content)) {
// Selected by user.
$str .= ' selected = "selected"';
}
$str .= '>' . $option . '</option>';
}
if (!$found) {
// oh, nothing to search for
return '';
}
$str .= '</select>';
$str .= '&nbsp;<input name="f_'.$this->field->id.'_allreq" id="f_'.$this->field->id.'_allreq'.$c.'" type="checkbox" '.$allrequired.'/>';
$str .= '<label for="f_'.$this->field->id.'_allreq'.$c.'">'.get_string('selectedrequired', 'data').'</label>';
$c++;
return $str;
}
function parse_search_field() {
$selected = optional_param('f_'.$this->field->id, array(), PARAM_NOTAGS);
$allrequired = optional_param('f_'.$this->field->id.'_allreq', 0, PARAM_BOOL);
if (empty($selected)) {
// no searching
return '';
}
return array('selected'=>$selected, 'allrequired'=>$allrequired);
}
function generate_sql($tablealias, $value) {
$allrequired = $value['allrequired'];
$selected = $value['selected'];
$varcharcontent = sql_compare_text("{$tablealias}.content", 255);
if ($selected) {
$conditions = array();
foreach ($selected as $sel) {
$likesel = str_replace('%', '\%', $sel);
$likeselsel = str_replace('_', '\_', $likesel);
$conditions[] = "({$tablealias}.fieldid = {$this->field->id} AND ($varcharcontent = '$sel'
OR {$tablealias}.content LIKE '$likesel##%'
OR {$tablealias}.content LIKE '%##$likesel'
OR {$tablealias}.content LIKE '%##$likesel##%'))";
}
if ($allrequired) {
return " (".implode(" AND ", $conditions).") ";
} else {
return " (".implode(" OR ", $conditions).") ";
}
} else {
return " ";
}
}
function update_content($recordid, $value, $name='') {
$content = new object;
$content->fieldid = $this->field->id;
$content->recordid = $recordid;
$content->content = $this->format_data_field_multimenu_content($value);
if ($oldcontent = get_record('data_content','fieldid', $this->field->id, 'recordid', $recordid)) {
$content->id = $oldcontent->id;
return update_record('data_content', $content);
} else {
return insert_record('data_content', $content);
}
}
function format_data_field_multimenu_content($content) {
if (!is_array($content)) {
return NULL;
}
$options = explode("\n", $this->field->param1);
$options = array_map('trim', $options);
$vals = array();
foreach ($content as $key=>$val) {
if ($key === 'xxx') {
continue;
}
if (!in_array(stripslashes($val), $options)) {
continue;
}
$vals[] = $val;
}
if (empty($vals)) {
return NULL;
}
return implode('##', $vals);
}
function display_browse_field($recordid, $template) {
if ($content = get_record('data_content', 'fieldid', $this->field->id, 'recordid', $recordid)) {
if (empty($content->content)) {
return false;
}
$options = explode("\n",$this->field->param1);
$options = array_map('trim', $options);
$contentArr = explode('##', $content->content);
$str = '';
foreach ($contentArr as $line) {
if (!in_array($line, $options)) {
// hmm, looks like somebody edited the field definition
continue;
}
$str .= $line . "<br />\n";
}
return $str;
}
return false;
}
}
?>
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