mirror of
https://github.com/moodle/moodle.git
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313 lines
12 KiB
PHP
313 lines
12 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Lets you assign roles to users in a particular context.
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*
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* @package core
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* @subpackage role
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* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once(dirname(__FILE__) . '/../../config.php');
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require_once($CFG->dirroot . '/' . $CFG->admin . '/roles/lib.php');
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define("MAX_USERS_TO_LIST_PER_ROLE", 10);
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$contextid = required_param('contextid',PARAM_INT);
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$roleid = optional_param('roleid', 0, PARAM_INT);
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list($context, $course, $cm) = get_context_info_array($contextid);
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$url = new moodle_url('/admin/roles/assign.php', array('contextid' => $contextid));
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if ($course) {
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$isfrontpage = ($course->id == SITEID);
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} else {
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$isfrontpage = false;
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if ($context->contextlevel == CONTEXT_USER) {
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$course = $DB->get_record('course', array('id'=>optional_param('courseid', SITEID, PARAM_INT)), '*', MUST_EXIST);
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$user = $DB->get_record('user', array('id'=>$context->instanceid), '*', MUST_EXIST);
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$url->param('courseid', $course->id);
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$url->param('userid', $user->id);
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} else {
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$course = $SITE;
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}
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}
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// security
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require_login($course, false, $cm);
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require_capability('moodle/role:assign', $context);
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$PAGE->set_url($url);
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$PAGE->set_context($context);
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$contextname = print_context_name($context);
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$courseid = $course->id;
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// These are needed early because of tabs.php
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list($assignableroles, $assigncounts, $nameswithcounts) = get_assignable_roles($context, ROLENAME_BOTH, true);
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$overridableroles = get_overridable_roles($context, ROLENAME_BOTH);
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// Make sure this user can assign this role
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if ($roleid && !isset($assignableroles[$roleid])) {
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$a = new stdClass;
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$a->roleid = $roleid;
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$a->context = $contextname;
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print_error('cannotassignrolehere', '', get_context_url($context), $a);
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}
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// Work out an appropriate page title.
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if ($roleid) {
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$a = new stdClass;
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$a->role = $assignableroles[$roleid];
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$a->context = $contextname;
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$title = get_string('assignrolenameincontext', 'role', $a);
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} else {
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if ($isfrontpage) {
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$title = get_string('frontpageroles', 'admin');
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} else {
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$title = get_string('assignrolesin', 'role', $contextname);
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}
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}
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// Process any incoming role assignments before printing the header.
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if ($roleid) {
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// Create the user selector objects.
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$options = array('context' => $context, 'roleid' => $roleid);
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$potentialuserselector = roles_get_potential_user_selector($context, 'addselect', $options);
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$currentuserselector = new existing_role_holders('removeselect', $options);
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// Process incoming role assignments
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$errors = array();
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if (optional_param('add', false, PARAM_BOOL) && confirm_sesskey()) {
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$userstoassign = $potentialuserselector->get_selected_users();
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if (!empty($userstoassign)) {
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foreach ($userstoassign as $adduser) {
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$allow = true;
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if ($allow) {
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role_assign($roleid, $adduser->id, $context->id);
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}
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}
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$potentialuserselector->invalidate_selected_users();
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$currentuserselector->invalidate_selected_users();
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$rolename = $assignableroles[$roleid];
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add_to_log($course->id, 'role', 'assign', 'admin/roles/assign.php?contextid='.$context->id.'&roleid='.$roleid, $rolename, '', $USER->id);
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// Counts have changed, so reload.
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list($assignableroles, $assigncounts, $nameswithcounts) = get_assignable_roles($context, ROLENAME_BOTH, true);
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}
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}
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// Process incoming role unassignments
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if (optional_param('remove', false, PARAM_BOOL) && confirm_sesskey()) {
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$userstounassign = $currentuserselector->get_selected_users();
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if (!empty($userstounassign)) {
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foreach ($userstounassign as $removeuser) {
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//unassign only roles that are added manually, no messing with other components!!!
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role_unassign($roleid, $removeuser->id, $context->id, '');
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}
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$potentialuserselector->invalidate_selected_users();
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$currentuserselector->invalidate_selected_users();
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$rolename = $assignableroles[$roleid];
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add_to_log($course->id, 'role', 'unassign', 'admin/roles/assign.php?contextid='.$context->id.'&roleid='.$roleid, $rolename, '', $USER->id);
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// Counts have changed, so reload.
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list($assignableroles, $assigncounts, $nameswithcounts) = get_assignable_roles($context, ROLENAME_BOTH, true);
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}
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}
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}
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$PAGE->set_pagelayout('admin');
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$PAGE->set_title($title);
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switch ($context->contextlevel) {
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case CONTEXT_SYSTEM:
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admin_externalpage_setup('assignroles', '', array('contextid' => $contextid, 'roleid' => $roleid));
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break;
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case CONTEXT_USER:
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$fullname = fullname($user, has_capability('moodle/site:viewfullnames', $context));
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$PAGE->set_heading($fullname);
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$showroles = 1;
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break;
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case CONTEXT_COURSECAT:
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$PAGE->set_heading("$SITE->fullname: ".get_string("categories"));
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break;
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case CONTEXT_COURSE:
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if ($isfrontpage) {
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admin_externalpage_setup('frontpageroles', '', array('contextid' => $contextid, 'roleid' => $roleid));
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} else {
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$PAGE->set_heading($course->fullname);
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}
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break;
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case CONTEXT_MODULE:
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$PAGE->set_heading(print_context_name($context, false));
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$PAGE->set_cacheable(false);
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break;
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case CONTEXT_BLOCK:
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$PAGE->set_heading($PAGE->course->fullname);
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break;
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}
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echo $OUTPUT->header();
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// Print heading.
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echo $OUTPUT->heading_with_help($title, 'assignroles', 'role');
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if ($roleid) {
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// Show UI for assigning a particular role to users.
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// Print a warning if we are assigning system roles.
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if ($context->contextlevel == CONTEXT_SYSTEM) {
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echo $OUTPUT->box(get_string('globalroleswarning', 'role'));
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}
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// Print the form.
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$assignurl = new moodle_url($PAGE->url, array('roleid'=>$roleid));
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?>
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<form id="assignform" method="post" action="<?php echo $assignurl ?>"><div>
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<input type="hidden" name="sesskey" value="<?php echo sesskey() ?>" />
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<table summary="" class="roleassigntable generaltable generalbox boxaligncenter" cellspacing="0">
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<tr>
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<td id="existingcell">
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<p><label for="removeselect"><?php print_string('extusers', 'role'); ?></label></p>
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<?php $currentuserselector->display() ?>
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</td>
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<td id="buttonscell">
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<div id="addcontrols">
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<input name="add" id="add" type="submit" value="<?php echo $OUTPUT->larrow().' '.get_string('add'); ?>" title="<?php print_string('add'); ?>" /><br />
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</div>
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<div id="removecontrols">
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<input name="remove" id="remove" type="submit" value="<?php echo get_string('remove').' '.$OUTPUT->rarrow(); ?>" title="<?php print_string('remove'); ?>" />
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</div>
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</td>
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<td id="potentialcell">
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<p><label for="addselect"><?php print_string('potusers', 'role'); ?></label></p>
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<?php $potentialuserselector->display() ?>
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</td>
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</tr>
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</table>
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</div></form>
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<?php
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$PAGE->requires->js_init_call('M.core_role.init_add_assign_page');
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if (!empty($errors)) {
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$msg = '<p>';
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foreach ($errors as $e) {
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$msg .= $e.'<br />';
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}
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$msg .= '</p>';
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echo $OUTPUT->box_start();
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echo $OUTPUT->notification($msg);
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echo $OUTPUT->box_end();
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}
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// Print a form to swap roles, and a link back to the all roles list.
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echo '<div class="backlink">';
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$select = new single_select($PAGE->url, 'roleid', $nameswithcounts, $roleid, null);
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$select->label = get_string('assignanotherrole', 'role');
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echo $OUTPUT->render($select);
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$backurl = new moodle_url('/admin/roles/assign.php', array('contextid' => $contextid));
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echo '<p><a href="' . $backurl->out() . '">' . get_string('backtoallroles', 'role') . '</a></p>';
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echo '</div>';
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} else if (empty($assignableroles)) {
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// Print a message that there are no roles that can me assigned here.
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echo $OUTPUT->heading(get_string('notabletoassignroleshere', 'role'), 3);
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} else {
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// Show UI for choosing a role to assign.
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// Print a warning if we are assigning system roles.
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if ($context->contextlevel == CONTEXT_SYSTEM) {
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echo $OUTPUT->box(get_string('globalroleswarning', 'role'));
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}
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// Print instruction
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echo $OUTPUT->heading(get_string('chooseroletoassign', 'role'), 3);
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// Get the names of role holders for roles with between 1 and MAX_USERS_TO_LIST_PER_ROLE users,
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// and so determine whether to show the extra column.
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$roleholdernames = array();
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$strmorethanmax = get_string('morethan', 'role', MAX_USERS_TO_LIST_PER_ROLE);
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$showroleholders = false;
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foreach ($assignableroles as $roleid => $notused) {
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$roleusers = '';
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if (0 < $assigncounts[$roleid] && $assigncounts[$roleid] <= MAX_USERS_TO_LIST_PER_ROLE) {
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$roleusers = get_role_users($roleid, $context, false, 'u.id, u.lastname, u.firstname');
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if (!empty($roleusers)) {
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$strroleusers = array();
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foreach ($roleusers as $user) {
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$strroleusers[] = '<a href="' . $CFG->wwwroot . '/user/view.php?id=' . $user->id . '" >' . fullname($user) . '</a>';
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}
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$roleholdernames[$roleid] = implode('<br />', $strroleusers);
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$showroleholders = true;
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}
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} else if ($assigncounts[$roleid] > MAX_USERS_TO_LIST_PER_ROLE) {
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$assignurl = new moodle_url($PAGE->url, array('roleid'=>$roleid));
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$roleholdernames[$roleid] = '<a href="'.$assignurl.'">'.$strmorethanmax.'</a>';
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} else {
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$roleholdernames[$roleid] = '';
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}
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}
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// Print overview table
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$table = new html_table();
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$table->tablealign = 'center';
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$table->width = '60%';
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$table->head = array(get_string('role'), get_string('description'), get_string('userswiththisrole', 'role'));
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$table->wrap = array('nowrap', '', 'nowrap');
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$table->align = array('left', 'left', 'center');
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if ($showroleholders) {
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$table->headspan = array(1, 1, 2);
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$table->wrap[] = 'nowrap';
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$table->align[] = 'left';
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}
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foreach ($assignableroles as $roleid => $rolename) {
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$description = format_string($DB->get_field('role', 'description', array('id'=>$roleid)));
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$assignurl = new moodle_url($PAGE->url, array('roleid'=>$roleid));
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$row = array('<a href="'.$assignurl.'">'.$rolename.'</a>',
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$description, $assigncounts[$roleid]);
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if ($showroleholders) {
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$row[] = $roleholdernames[$roleid];
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}
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$table->data[] = $row;
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}
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echo html_writer::table($table);
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if ($context->contextlevel > CONTEXT_USER) {
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echo html_writer::start_tag('div', array('class'=>'backlink'));
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echo html_writer::tag('a', get_string('backto', '', $contextname), array('href'=>get_context_url($context)));
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echo html_writer::end_tag('div');
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}
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}
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echo $OUTPUT->footer();
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