MDL-67748 admin: Show user identity fields on the manage tokens page

On sites with many users, the fullname itself may not be unique
identifier of users. Display the user identity fields below the token
owner's name.

webservice/classes/token_table.php

@@ -47,6 +47,9 @@ class token_table extends \table_sql {
     /** @var bool $hasviewfullnames Does the user have the viewfullnames capability. */
     protected $hasviewfullnames;
 
+    /** @var array */
+    protected $userextrafields;
+
     /** @var object */
     protected $filterdata;
 
@@ -66,6 +69,9 @@ public function __construct($id, $filterdata = null) {
         $this->showalltokens = has_capability('moodle/webservice:managealltokens', $context);
         $this->hasviewfullnames = has_capability('moodle/site:viewfullnames', $context);
 
+        // List of user identity fields.
+        $this->userextrafields = \core\user_fields::get_identity_fields(\context_system::instance(), false);
+
         // Filter form values.
         $this->filterdata = $filterdata;
 
@@ -142,9 +148,19 @@ public function col_validuntil($data) {
     public function col_fullname($data) {
         global $OUTPUT;
 
+        $identity = [];
+
+        foreach ($this->userextrafields as $userextrafield) {
+            $identity[] = $data->$userextrafield;
+        }
+
         $userprofilurl = new \moodle_url('/user/profile.php', ['id' => $data->userid]);
         $content = \html_writer::link($userprofilurl, fullname($data, $this->hasviewfullnames));
 
+        if ($identity) {
+            $content .= \html_writer::div('<small>' . implode(', ', $identity) . '</small>', 'useridentity text-muted');
+        }
+
         // Make up list of capabilities that the user is missing for the given webservice.
         $webservicemanager = new \webservice();
         $usermissingcaps = $webservicemanager->get_missing_capabilities_by_users([['id' => $data->userid]], $data->serviceid);
@@ -156,7 +172,7 @@ public function col_fullname($data) {
             }, $usermissingcaps[$data->userid]);
             $list = \html_writer::alist($links);
             $help = $OUTPUT->help_icon('missingcaps', 'webservice');
-            $content .= print_collapsible_region(\html_writer::div($list . $help, 'missingcaps'), 'small',
+            $content .= print_collapsible_region(\html_writer::div($list . $help, 'missingcaps'), 'small mt-2',
                 \html_writer::random_id('usermissingcaps'), get_string('usermissingcaps', 'webservice', $count), '', true, true);
         }
 
@@ -235,6 +251,10 @@ public function query_db($pagesize, $useinitialsbar = false) {
         $usernamefields = $userfieldsapi->get_sql('u', false, '', '', false)->selects;
         $creatorfields = $userfieldsapi->get_sql('c', false, 'creator', '', false)->selects;
 
+        if (!empty($this->userextrafields)) {
+            $usernamefields .= ',u.' . implode(',u.', $this->userextrafields);
+        }
+
         $params = ['tokenmode' => EXTERNAL_TOKEN_PERMANENT];
 
         $selectfields = "SELECT t.id, t.token, t.iprestriction, t.validuntil, t.creatorid,