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<?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/>.
/**
* Lets the user define and edit roles.
*
* Responds to actions:
* [blank] - list roles.
* delete - delete a role (with are-you-sure)
* moveup - change the sort order
* movedown - change the sort order
*
* For all but the first two of those, you also need a roleid parameter, and
* possibly some other data.
*
* @package core_role
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(__DIR__ . '/../../config.php');
require_once($CFG->libdir.'/adminlib.php');
require_once($CFG->dirroot . '/' . $CFG->admin . '/roles/lib.php');
$action = optional_param('action', '', PARAM_ALPHA);
if ($action) {
$roleid = required_param('roleid', PARAM_INT);
} else {
$roleid = 0;
}
// Get the base URL for this and related pages into a convenient variable.
$baseurl = $CFG->wwwroot . '/' . $CFG->admin . '/roles/manage.php';
$defineurl = $CFG->wwwroot . '/' . $CFG->admin . '/roles/define.php';
admin_externalpage_setup('defineroles');
// Check access permissions.
$systemcontext = context_system::instance();
require_capability('moodle/role:manage', $systemcontext);
// Get some basic data we are going to need.
$roles = role_fix_names(get_all_roles(), $systemcontext, ROLENAME_ORIGINAL);
$undeletableroles = array();
$undeletableroles[$CFG->notloggedinroleid] = 1;
$undeletableroles[$CFG->guestroleid] = 1;
$undeletableroles[$CFG->defaultuserroleid] = 1;
// Process submitted data.
$confirmed = (optional_param('confirm', false, PARAM_BOOL) && data_submitted() && confirm_sesskey());
switch ($action) {
case 'delete':
if (isset($undeletableroles[$roleid])) {
print_error('cannotdeletethisrole', '', $baseurl);
}
if (!$confirmed) {
// Show confirmation.
echo $OUTPUT->header();
$optionsyes = array('action'=>'delete', 'roleid'=>$roleid, 'sesskey'=>sesskey(), 'confirm'=>1);
$a = new stdClass();
$a->id = $roleid;
$a->name = $roles[$roleid]->name;
$a->shortname = $roles[$roleid]->shortname;
$a->count = $DB->count_records_select('role_assignments',
'roleid = ?', array($roleid), 'COUNT(DISTINCT userid)');
$formcontinue = new single_button(new moodle_url($baseurl, $optionsyes), get_string('yes'));
$formcancel = new single_button(new moodle_url($baseurl), get_string('no'), 'get');
echo $OUTPUT->confirm(get_string('deleterolesure', 'core_role', $a), $formcontinue, $formcancel);
echo $OUTPUT->footer();
die;
}
if (!delete_role($roleid)) {
// The delete failed.
print_error('cannotdeleterolewithid', 'error', $baseurl, $roleid);
}
// Deleted a role sitewide...
redirect($baseurl);
break;
case 'moveup':
if (confirm_sesskey()) {
$prevrole = null;
$thisrole = null;
foreach ($roles as $role) {
if ($role->id == $roleid) {
$thisrole = $role;
break;
} else {
$prevrole = $role;
}
}
if (is_null($thisrole) || is_null($prevrole)) {
print_error('cannotmoverolewithid', 'error', '', $roleid);
}
if (!switch_roles($thisrole, $prevrole)) {
print_error('cannotmoverolewithid', 'error', '', $roleid);
}
}
redirect($baseurl);
break;
case 'movedown':
if (confirm_sesskey()) {
$thisrole = null;
$nextrole = null;
foreach ($roles as $role) {
if ($role->id == $roleid) {
$thisrole = $role;
} else if (!is_null($thisrole)) {
$nextrole = $role;
break;
}
}
if (is_null($nextrole)) {
print_error('cannotmoverolewithid', 'error', '', $roleid);
}
if (!switch_roles($thisrole, $nextrole)) {
print_error('cannotmoverolewithid', 'error', '', $roleid);
}
}
redirect($baseurl);
break;
}
// Print the page header and tabs.
echo $OUTPUT->header();
$currenttab = 'manage';
require('managetabs.php');
// Initialise table.
$table = new html_table();
$table->colclasses = array('leftalign', 'leftalign', 'leftalign', 'leftalign');
$table->id = 'roles';
$table->attributes['class'] = 'admintable generaltable';
$table->head = array(
get_string('role') . ' ' . $OUTPUT->help_icon('roles', 'core_role'),
get_string('description'),
get_string('roleshortname', 'core_role'),
get_string('edit')
);
// Get some strings outside the loop.
$stredit = get_string('edit');
$strdelete = get_string('delete');
$strmoveup = get_string('moveup');
$strmovedown = get_string('movedown');
// Print a list of roles with edit/copy/delete/reorder icons.
$table->data = array();
$firstrole = reset($roles);
$lastrole = end($roles);
foreach ($roles as $role) {
// Basic data.
$row = array(
'<a href="' . $defineurl . '?action=view&roleid=' . $role->id . '">' . $role->localname . '</a>',
role_get_description($role),
s($role->shortname),
'',
);
// Move up.
if ($role->sortorder != $firstrole->sortorder) {
$row[3] .= get_action_icon($baseurl . '?action=moveup&roleid=' . $role->id . '&sesskey=' . sesskey(), 'up', $strmoveup, $strmoveup);
} else {
$row[3] .= get_spacer();
}
// Move down.
if ($role->sortorder != $lastrole->sortorder) {
$row[3] .= get_action_icon($baseurl . '?action=movedown&roleid=' . $role->id . '&sesskey=' . sesskey(), 'down', $strmovedown, $strmovedown);
} else {
$row[3] .= get_spacer();
}
// Edit.
$row[3] .= get_action_icon($defineurl . '?action=edit&roleid=' . $role->id,
'edit', $stredit, get_string('editxrole', 'core_role', $role->localname));
// Delete.
if (isset($undeletableroles[$role->id])) {
$row[3] .= get_spacer();
} else {
$row[3] .= get_action_icon($baseurl . '?action=delete&roleid=' . $role->id,
'delete', $strdelete, get_string('deletexrole', 'core_role', $role->localname));
}
$table->data[] = $row;
}
echo html_writer::table($table);
echo $OUTPUT->container_start('buttons');
echo $OUTPUT->single_button(new moodle_url($defineurl, array('action' => 'add')), get_string('addrole', 'core_role'), 'get');
echo $OUTPUT->container_end();
echo $OUTPUT->footer();
die;
function get_action_icon($url, $icon, $alt, $tooltip) {
global $OUTPUT;
return '<a title="' . $tooltip . '" href="'. $url . '">' .
$OUTPUT->pix_icon('t/' . $icon, $alt) . '</a> ';
}
function get_spacer() {
global $OUTPUT;
return $OUTPUT->spacer();
}