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moodle/mod/data/field.php

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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');
$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('newtype','',PARAM_ALPHA); // type of the new field
$mode = optional_param('mode','',PARAM_ALPHA);
$defaultsort = optional_param('defaultsort', 0, PARAM_INT);
$defaultsortdir = optional_param('defaultsortdir', 0, PARAM_INT);
$cancel = optional_param('cancel', 0, PARAM_BOOL);
if ($cancel) {
$mode = 'list';
}
if ($id) {
if (! $cm = get_coursemodule_from_id('data', $id)) {
print_error('invalidcoursemodule');
}
if (! $course = $DB->get_record('course', array('id'=>$cm->course))) {
print_error('coursemisconf');
}
if (! $data = $DB->get_record('data', array('id'=>$cm->instance))) {
print_error('invalidcoursemodule');
}
} else {
if (! $data = $DB->get_record('data', array('id'=>$d))) {
print_error('invalidid', 'data');
}
if (! $course = $DB->get_record('course', array('id'=>$data->course))) {
print_error('invalidcoursemodule');
}
if (! $cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
print_error('invalidcoursemodule');
}
}
require_login($course->id, true, $cm);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
require_capability('mod/data:managetemplates', $context);
/************************************
* Data Processing *
***********************************/
switch ($mode) {
case 'add': ///add a new field
if (confirm_sesskey() and $fieldinput = data_submitted()){
//$fieldinput->name = data_clean_field_name($fieldinput->name);
/// Only store this new field if it doesn't already exist.
if (($fieldinput->name == '') or data_fieldname_exists($fieldinput->name, $data->id)) {
$displaynoticebad = get_string('invalidfieldname','data');
} else {
/// Check for arrays and convert to a comma-delimited string
data_convert_arrays_to_strings($fieldinput);
/// Create a field object to collect and store the data safely
$type = required_param('type', PARAM_FILE);
$field = data_get_field_new($type, $data);
$field->define_field($fieldinput);
$field->insert_field();
/// Update some templates
data_append_new_field_to_templates($data, $fieldinput->name);
add_to_log($course->id, 'data', 'fields add',
"field.php?d=$data->id&amp;mode=display&amp;fid=$fid", $fid, $cm->id);
$displaynoticegood = get_string('fieldadded','data');
}
}
break;
case 'update': ///update a field
if (confirm_sesskey() and $fieldinput = data_submitted()){
//$fieldinput->name = data_clean_field_name($fieldinput->name);
if (($fieldinput->name == '') or data_fieldname_exists($fieldinput->name, $data->id, $fieldinput->fid)) {
$displaynoticebad = get_string('invalidfieldname','data');
} else {
/// Check for arrays and convert to a comma-delimited string
data_convert_arrays_to_strings($fieldinput);
/// Create a field object to collect and store the data safely
$field = data_get_field_from_id($fid, $data);
$oldfieldname = $field->field->name;
$field->field->name = $fieldinput->name;
$field->field->description = $fieldinput->description;
for ($i=1; $i<=10; $i++) {
if (isset($fieldinput->{'param'.$i})) {
$field->field->{'param'.$i} = $fieldinput->{'param'.$i};
} else {
$field->field->{'param'.$i} = '';
}
}
$field->update_field();
/// Update the templates.
data_replace_field_in_templates($data, $oldfieldname, $field->field->name);
add_to_log($course->id, 'data', 'fields update',
"field.php?d=$data->id&amp;mode=display&amp;fid=$fid", $fid, $cm->id);
$displaynoticegood = get_string('fieldupdated','data');
}
}
break;
case 'delete': // Delete a field
if (confirm_sesskey()){
if ($confirm = optional_param('confirm', 0, PARAM_INT)) {
// Delete the field completely
if ($field = data_get_field_from_id($fid, $data)) {
$field->delete_field();
// Update the templates.
data_replace_field_in_templates($data, $field->field->name, '');
// Update the default sort field
if ($fid == $data->defaultsort) {
unset($rec);
$rec->id = $data->id;
$rec->defaultsort = 0;
$rec->defaultsortdir = 0;
$DB->update_record('data', $rec);
}
add_to_log($course->id, 'data', 'fields delete',
"field.php?d=$data->id", $field->field->name, $cm->id);
$displaynoticegood = get_string('fielddeleted', 'data');
}
} else {
data_print_header($course,$cm,$data, false);
// Print confirmation message.
$field = data_get_field_from_id($fid, $data);
echo $OUTPUT->confirm('<strong>'.$field->name().': '.$field->field->name.'</strong><br /><br />'. get_string('confirmdeletefield','data'),
'field.php?d='.$data->id.'&mode=delete&fid='.$fid.'&confirm=1',
'field.php?d='.$data->id);
echo $OUTPUT->footer();
exit;
}
}
break;
case 'sort': // Set the default sort parameters
if (confirm_sesskey()) {
$rec->id = $data->id;
$rec->defaultsort = $defaultsort;
$rec->defaultsortdir = $defaultsortdir;
$DB->update_record('data', $rec);
redirect($CFG->wwwroot.'/mod/data/field.php?d='.$data->id, get_string('changessaved'), 2);
exit;
}
break;
default:
break;
}
/// 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
$PAGE->set_pagetype('mod-data-field-' . $newtype);
$PAGE->navbar->add(get_string('fields', 'data'));
if (($mode == 'new') && (!empty($newtype)) && confirm_sesskey()) { /// Adding a new field
data_print_header($course, $cm, $data,'fields');
$field = data_get_field_new($newtype, $data);
$field->display_edit_field();
} else if ($mode == 'display' && confirm_sesskey()) { /// Display/edit existing field
data_print_header($course, $cm, $data,'fields');
$field = data_get_field_from_id($fid, $data);
$field->display_edit_field();
} else { /// Display the main listing of all fields
data_print_header($course, $cm, $data,'fields');
if (!$DB->record_exists('data_fields', array('dataid'=>$data->id))) {
echo $OUTPUT->notification(get_string('nofieldindatabase','data')); // nothing in database
echo $OUTPUT->notification(get_string('pleaseaddsome','data', 'preset.php?id='.$cm->id)); // link to presets
} else { //else print quiz style list of fields
$table = new html_table();
$table->head = array(get_string('fieldname','data'), get_string('type','data'), get_string('fielddescription', 'data'), get_string('action','data'));
$table->align = array('left','left','left', 'center');
$table->wrap = array(false,false,false,false);
if ($fff = $DB->get_records('data_fields', array('dataid'=>$data->id),'id')){
foreach ($fff as $ff) {
$field = data_get_field($ff, $data);
$table->data[] = array(
'<a href="field.php?mode=display&amp;d='.$data->id.
'&amp;fid='.$field->field->id.'&amp;sesskey='.sesskey().'">'.$field->field->name.'</a>',
$field->image().'&nbsp;'.get_string($field->type, 'data'),
shorten_text($field->field->description, 30),
'<a href="field.php?d='.$data->id.'&amp;mode=display&amp;fid='.$field->field->id.'&amp;sesskey='.sesskey().'">'.
'<img src="'.$OUTPUT->old_icon_url('t/edit') . '" class="iconsmall" alt="'.get_string('edit').'" title="'.get_string('edit').'" /></a>'.
'&nbsp;'.
'<a href="field.php?d='.$data->id.'&amp;mode=delete&amp;fid='.$field->field->id.'&amp;sesskey='.sesskey().'">'.
'<img src="'.$OUTPUT->old_icon_url('t/delete') . '" class="iconsmall" alt="'.get_string('delete').'" title="'.get_string('delete').'" /></a>'
);
}
}
echo $OUTPUT->table($table);
}
echo '<div class="fieldadd">';
echo '<label for="fieldform_jump">'.get_string('newfield','data').'</label>';
$popupurl = $CFG->wwwroot.'/mod/data/field.php?d='.$data->id.'&mode=new&sesskey='. sesskey();
echo $OUTPUT->select(html_select::make_popup_form($popupurl, 'newtype', $menufield, "fieldform"));
echo $OUTPUT->help_icon(moodle_help_icon::make('fields', get_string('addafield','data'), 'data'));
echo '</div>';
echo '<div class="sortdefault">';
echo '<form id="sortdefault" action="'.$CFG->wwwroot.'/mod/data/field.php" method="get">';
echo '<div>';
echo '<input type="hidden" name="d" value="'.$data->id.'" />';
echo '<input type="hidden" name="mode" value="sort" />';
echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
echo '<label for="defaultsort">'.get_string('defaultsortfield','data').'</label>';
echo '<select id="defaultsort" name="defaultsort">';
if ($fields = $DB->get_records('data_fields', array('dataid'=>$data->id))) {
echo '<optgroup label="'.get_string('fields', 'data').'">';
foreach ($fields as $field) {
if ($data->defaultsort == $field->id) {
echo '<option value="'.$field->id.'" selected="selected">'.$field->name.'</option>';
} else {
echo '<option value="'.$field->id.'">'.$field->name.'</option>';
}
}
echo '</optgroup>';
}
$options = array();
$options[DATA_TIMEADDED] = get_string('timeadded', 'data');
// TODO: we will need to change defaultsort db to unsinged to make these work in 2.0
/* $options[DATA_TIMEMODIFIED] = get_string('timemodified', 'data');
$options[DATA_FIRSTNAME] = get_string('authorfirstname', 'data');
$options[DATA_LASTNAME] = get_string('authorlastname', 'data');
if ($data->approval and has_capability('mod/data:approve', $context)) {
$options[DATA_APPROVED] = get_string('approved', 'data');
}*/
echo '<optgroup label="'.get_string('other', 'data').'">';
foreach ($options as $key => $name) {
if ($data->defaultsort == $key) {
echo '<option value="'.$key.'" selected="selected">'.$name.'</option>';
} else {
echo '<option value="'.$key.'">'.$name.'</option>';
}
}
echo '</optgroup>';
echo '</select>';
$options = array(0 => get_string('ascending', 'data'),
1 => get_string('descending', 'data'));
echo $OUTPUT->select(html_select::make($options, 'defaultsortdir', $data->defaultsortdir, false));
echo '<input type="submit" value="'.get_string('save', 'data').'" />';
echo '</div>';
echo '</form>';
echo '</div>';
}
/// Finish the page
echo $OUTPUT->footer();
?>
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