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moodle/mod/data/fields.php
moodler 54cf0d092f Fixed a parameter check
2006-01-24 02:07:13 +00:00

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<?php // $Id$
///////////////////////////////////////////////////////////////////////////
// //
// NOTICE OF COPYRIGHT //
// //
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
// http://moodle.org //
// //
// Copyright (C) 2005 Martin Dougiamas http://dougiamas.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 //
// //
///////////////////////////////////////////////////////////////////////////
require_once('../../config.php');
require_once('lib.php');
require_once($CFG->libdir.'/blocklib.php');
define('PAGE_DATA_FIELDS', 'mod-data-fields');
define('PAGE_DATA', PAGE_DATA_FIELDS);
require_once('pagelib.php');
require_login();
page_map_class(PAGE_DATA_FIELDS, 'page_data');
$DEFINEDPAGES = array(PAGE_DATA_FIELDS);
$id = optional_param('id', 0, PARAM_INT); // course module id
$d = optional_param('d', 0, PARAM_INT); // database id
$fid = optional_param('fid', 0 , PARAM_INT); //update field id
$newtype = optional_param('fieldmenu','',PARAM_ALPHA); //type of the new field
//action specifies what action is performed when data is submitted
$mode = optional_param('mode','',PARAM_ALPHA);
$displayflag = ''; //str to print after an operation,
if ($id) {
if (! $cm = get_record('course_modules', 'id', $id)) {
error('Course Module ID was incorrect');
}
if (! $course = get_record('course', 'id', $cm->course)) {
error('Course is misconfigured');
}
if (! $data = get_record('data', 'id', $cm->instance)) {
error('Course module is incorrect');
}
} else {
if (! $data = get_record('data', 'id', $d)) {
error('Data ID is incorrect');
}
if (! $course = get_record('course', 'id', $data->course)) {
error('Course is misconfigured');
}
if (! $cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
error('Course Module ID was incorrect');
}
}
if (!isteacheredit($course->id)){
error(get_string('noaccess','data'));
}
add_to_log($course->id, 'data', 'view', "view.php?id=$cm->id", $data->id, $cm->id);
// Initialize $PAGE, compute blocks
$PAGE = page_create_instance($data->id);
$pageblocks = blocks_setup($PAGE);
$blocks_preferred_width = bounded_number(180, blocks_preferred_width($pageblocks[BLOCK_POS_LEFT]), 210);
/// Print the page header
if (!empty($edit) && $PAGE->user_allowed_editing()) {
if ($edit == 'on') {
$USER->editing = true;
} else if ($edit == 'off') {
$USER->editing = false;
}
}
$PAGE->print_header($course->shortname.': %fullname%');
echo '<table id="layout-table"><tr>';
if(!empty($CFG->showblocksonmodpages) && (blocks_have_content($pageblocks, BLOCK_POS_LEFT) || $PAGE->user_is_editing())) {
echo '<td style="width: '.$blocks_preferred_width.'px;" id="left-column">';
blocks_print_group($PAGE, $pageblocks, BLOCK_POS_LEFT);
echo '</td>';
}
echo '<td id="middle-column">';
print_heading(format_string($data->name));
/************************************
* Data Processing *
***********************************/
switch($mode){
case 'add': ///add a new field
if (confirm_sesskey() and $field = data_submitted()){
$sql = 'SELECT * from '.$CFG->prefix.'data_fields WHERE name LIKE "'.$field->name.
'" AND dataid = '.$data->id;
if ($field->name and !get_record_sql($sql)){
$field->dataid = $data->id;
insert_record('data_fields', $field);
$displayflag = get_string('fieldadded','data');
}
else { //no duplicate names allowed in one database!
$displayflag = get_string('invalidfieldname','data');
}
}
break;
case 'delete': ///delete a field
if (confirm_sesskey()){
if ($confirm = optional_param('confirm', 0, PARAM_INT)){
delete_records('data_fields','id',$fid);
$displayflag = get_string('fielddeleted','data');
}
else { //prints annoying confirmation dialogue
$field = get_record('data_fields','id',$fid);
print_simple_box_start('center', '60%');
echo '<div align="center">';
echo '<form action = "fields.php?d='.$data->id.'&amp;mode=delete&amp;fid='.$fid.'" method="post">';
echo '<input name="sesskey" value="'.sesskey().'" type="hidden" />';
echo '<input name="confirm" value="1" type="hidden" />';
echo '<strong>'.$field->name.'</strong> - '.get_string('confirmdeletefield','data');
echo '<p />';
echo '<input type="submit" value="'.get_string('ok').'"> ';
echo '<input type="button" value="'.get_string('cancel').'" onclick="javascript:history.go(-1);" />';
echo '</form>';
echo '</div>';
print_simple_box_end();
echo '</td></tr></table>';
print_footer($course);
exit;
}
}
break;
case 'update': ///update a field
if (confirm_sesskey() and $field = data_submitted()){
$field->id = $fid;
$field->name = optional_param('name','',PARAM_NOTAGS);
$sql = 'SELECT * from '.$CFG->prefix.'data_fields WHERE name LIKE "'.$field->name.
'" AND dataid = '.$data->id.' AND ((id < '.$field->id.') OR (id > '.$field->id.'))';
if ($field->name and !get_records_sql($sql)){
//depends on the type of field, perform native update methods
$currentfield = get_record('data_fields','id',$fid);
$g = data_get_field($currentfield);
$g->update($field);
unset($g);
$displayflag = get_string('fieldupdated','data');
}
else {
$displayflag = get_string('invalidfieldname','data');
}
}
break;
default:
break;
}
/// Check to see if groups are being used here
if ($groupmode = groupmode($course, $cm)) { // Groups are being used
$currentgroup = setup_and_print_groups($course, $groupmode, "view.php?id=$cm->id");
} else {
$currentgroup = 0;
}
if ($currentgroup) {
$groupselect = " AND groupid = '$currentgroup'";
$groupparam = "&amp;groupid=$currentgroup";
} else {
$groupselect = "";
$groupparam = "";
}
/// Print the tabs
$currenttab = 'fields';
include('tabs.php');
/// Print the browsing interface
///get the list of possible fields (plugins)
$directories = get_list_of_plugins('mod/data/field/');
$menufield = array();
foreach ($directories as $directory){
$menufield[$directory] = get_string($directory,'data'); //get from language files
}
asort($menufield); //sort in alphabetical order
notify ($displayflag); //print message, if any
if (($mode == 'new') && confirm_sesskey() ){ //adding new field
require_once('field/'.$newtype.'/field.class.php');
$f = 'data_field_'.$newtype;
$g = new $f;
$g->display_edit_field(0, $data->id);
unset($f);
unset($g);
}
else if ($mode != 'display'){ //display main form - add new, update, delete
echo '<form name="fieldform" action="fields.php?d='.$data->id.'&amp;" method="POST">';
echo '<input type="hidden" name="mode" value="">';
echo '<input name="sesskey" value="'.sesskey().'" type="hidden">';
print_simple_box_start('center','50%');
///New fields
echo '<table width="100%"><tr>';
echo '<td>'.get_string('newfield','data').' ';
choose_from_menu($menufield,'fieldmenu','0','choose','fieldform.mode.value=\'new\';fieldform.submit();','0');
helpbutton('fields', get_string('addafield','data'), 'data');
echo '</td></tr>';
/*******************************************
* Print List of Fields in Quiz Style *
*******************************************/
if (!count_records('data_fields','dataid',$data->id)) {
echo '<tr><td colspan="2">'.get_string('nofieldindatabase','data').'</td></tr>'; // nothing in database
}
else { //else print quiz style list of fields
echo '<tr><td>';
print_simple_box_start('center','90%');
echo '<table width="100%"><tr><td align="center"><b>'.get_string('action','data').
'</b></td><td><b>'.get_string('fieldname','data').
'</b></td><td align="center"><b>'.get_string('type','data').'</b></td></tr>';
if ($fields = get_records('data_fields','dataid',$data->id)){
foreach ($fields as $field) {
///Print Action Column
echo '<tr><td align="center">';
echo '<a href="fields.php?d='.$data->id.'&amp;mode=display&amp;fid='.$field->id.'&amp;sesskey='.sesskey().'">';
echo '<img src="'.$CFG->pixpath.'/t/edit.gif"
height="11" width="11" border="0" alt="'.get_string('edit').'" /></a>';
echo '&nbsp;';
echo '<a href="fields.php?d='.$data->id.'&amp;mode=delete&amp;fid='.$field->id.'&amp;sesskey='.sesskey().'">';
echo '<img src="'.$CFG->pixpath.'/t/delete.gif"
height="11" width="11" border="0" alt="'.get_string('delete').'" /></a>';
echo '</td>';
///Print Fieldname Column
echo '<td>';
echo $field->name;
echo '</td>';
///Print Type Column
echo '<td align="center">';
$g = data_get_field($field);
echo $g->image(); //print type icon
echo '</td></tr>';
}
}
echo '</table>';
print_simple_box_end();
} //close else
echo '</td></tr></table>';
print_simple_box_end();
echo '</form>';
}else { //display native update form
if (confirm_sesskey()){
$currentfield = get_record('data_fields','id',$fid);
$g = data_get_field($currentfield);
$g->display_edit_field($currentfield->id);
unset($g);
}
}
/// Finish the page
echo '</td></tr></table>';
print_footer($course);
?>
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