/**
* Produces a table to visually compare roles and capabilities.
*
* @param array $capabilities An array of capabilities to show comparison for.
* @param int $contextid The context we are displaying for.
* @param array $roles An array of roles to show comparison for.
* @return string
*/
public function capability_comparison_table(array $capabilities, $contextid, array $roles)
{
$strpermissions = $this->get_permission_strings();
$permissionclasses = $this->get_permission_classes();
if ($contextid === context_system::instance()->id) {
$strpermissions[CAP_INHERIT] = new lang_string('notset', 'role');
}
$table = new html_table();
$table->attributes['class'] = 'comparisontable';
$table->head = array(' ');
foreach ($roles as $role) {
$url = new moodle_url('/admin/roles/define.php', array('action' => 'view', 'roleid' => $role->id));
$table->head[] = html_writer::div(html_writer::link($url, $role->localname));
}
$table->data = array();
foreach ($capabilities as $capability) {
$contexts = tool_capability_calculate_role_data($capability, $roles);
$captitle = new html_table_cell(get_capability_string($capability) . html_writer::span($capability));
$captitle->header = true;
$row = new html_table_row(array($captitle));
foreach ($roles as $role) {
if (isset($contexts[$contextid]->rolecapabilities[$role->id])) {
$permission = $contexts[$contextid]->rolecapabilities[$role->id];
} else {
$permission = CAP_INHERIT;
}
$cell = new html_table_cell($strpermissions[$permission]);
$cell->attributes['class'] = $permissionclasses[$permission];
$row->cells[] = $cell;
}
$table->data[] = $row;
}
// Start the list item, and print the context name as a link to the place to make changes.
if ($contextid == context_system::instance()->id) {
$url = new moodle_url('/admin/roles/manage.php');
$title = get_string('changeroles', 'tool_capability');
} else {
$url = new moodle_url('/admin/roles/override.php', array('contextid' => $contextid));
$title = get_string('changeoverrides', 'tool_capability');
}
$context = context::instance_by_id($contextid);
$html = $this->output->heading(html_writer::link($url, $context->get_context_name(), array('title' => $title)), 3);
$html .= html_writer::table($table);
// If there are any child contexts, print them recursively.
if (!empty($contexts[$contextid]->children)) {
foreach ($contexts[$contextid]->children as $childcontextid) {
$html .= $this->capability_comparison_table($capabilities, $childcontextid, $roles, true);
}
}
return $html;
}
/**
* Outputs a matrix of roles and capabilities.
*
* @param int $contextid The context we are displaying for.
* @param array $capabilities An array of capabilities to show.
* @param array $roles An array of roles to show.
*/
function capability_matrix($contextid, array $capabilities, array $roles)
{
$strpermissions = get_permission_strings();
if ($contextid === context_system::instance()->id) {
$strpermissions[CAP_INHERIT] = new lang_string('notset', 'role');
}
// Start the list item.
$context = context::instance_by_id($contextid);
echo "\n" . $context->get_context_name() . "\t";
// Display the role names as headings.
foreach ($roles as $role) {
echo $role->localname . "\t";
}
echo "\n\n";
$matrix = array();
foreach ($capabilities as $capability) {
$contexts = tool_capability_calculate_role_data($capability, $roles);
echo get_capability_string($capability) . "\t";
foreach ($roles as $role) {
if (isset($contexts[$contextid]->rolecapabilities[$role->id])) {
$permission = $contexts[$contextid]->rolecapabilities[$role->id];
} else {
$permission = CAP_INHERIT;
}
echo $strpermissions[$permission] . "\t";
$matrix[$role][$capability] = $permission;
// for comparison matrix !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
}
echo "\n";
}
// If there are any child contexts, print them recursively.
if (!empty($contexts[$contextid]->children)) {
foreach ($contexts[$contextid]->children as $childcontextid) {
capability_comparison_table($capabilities, $childcontextid, $roles, true);
}
}
return;
}
