MDL-23371 reverting last commit in this file, this was most probably …

…unintentional copy/paste from cas plugin - we need to act quickly because this was breaking installs

auth/ldap/db/install.php

@@ -1,12 +1,14 @@
 <?php
 
-function xmldb_auth_cas_install() {
+function xmldb_auth_ldap_install() {
     global $CFG, $DB;
 
     // upgrade from 1.9.x, introducing version.php
 
-    // remove cached passwords, we do not need them for this plugin
-    $DB->set_field('user', 'password', 'not cached', array('auth'=>'cas'));
+    // remove cached passwords, we do not need them for this plugin, but only if internal
+    if (get_config('auth/ldap', 'preventpassindb')) {
+        $DB->set_field('user', 'password', 'not cached', array('auth'=>'ldap'));
+    }
 
     // We kept the LDAP version used to connect to the server in
     // $config->version. In 2.0, $config->version is overwritten with
@@ -15,10 +17,10 @@ function xmldb_auth_cas_install() {
     //
     // This works by pure luck, as the plugin version number is stored in
     // config_plugins table before we get called. The good news is the new
-    // version number is stored for 'auth_cas' plugin name, while the old ldap
-    // version setting is stored for 'auth/cas' plugin name. Yay!
-    if ($ldap_version = get_config('auth/cas', 'version')) {
-        set_config('ldap_version', $ldap_version, 'auth/cas');
-        unset_config('version', 'auth/cas');
+    // version number is stored for 'auth_ldap' plugin name, while the old ldap
+    // version setting is stored for 'auth/ldap' plugin name. Yay!
+    if ($ldap_version = get_config('auth/ldap', 'version')) {
+        set_config('ldap_version', $ldap_version, 'auth/ldap');
+        unset_config('version', 'auth/ldap');
     }
 }