From 05e43411659c3bbce5b50f190350d75475901db6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20S=CC=8Ckoda?= <commits@skodak.org>
Date: Sun, 22 Jul 2012 13:17:15 +0200
Subject: [PATCH] MDL-34441 rewrite log display actions after db migration

---
 .../dbtransfer/lang/en/tool_dbtransfer.php    |  1 +
 admin/tool/dbtransfer/locallib.php            | 39 ++++++++++++++++++-
 2 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/admin/tool/dbtransfer/lang/en/tool_dbtransfer.php b/admin/tool/dbtransfer/lang/en/tool_dbtransfer.php
index 448183b5e96..24c013c9802 100644
--- a/admin/tool/dbtransfer/lang/en/tool_dbtransfer.php
+++ b/admin/tool/dbtransfer/lang/en/tool_dbtransfer.php
@@ -22,6 +22,7 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+$string['convertinglogdisplay'] = 'Converting log display actions';
 $string['dbexport'] = 'Database export';
 $string['dbtransfer'] = 'Database transfer';
 $string['exportdata'] = 'Export data';
diff --git a/admin/tool/dbtransfer/locallib.php b/admin/tool/dbtransfer/locallib.php
index 8e5d2d68ecd..b0c27a1c99f 100644
--- a/admin/tool/dbtransfer/locallib.php
+++ b/admin/tool/dbtransfer/locallib.php
@@ -83,6 +83,43 @@ function tool_dbtransfer_transfer_database(moodle_database $sourcedb, moodle_dat
 
     $var = new database_mover($sourcedb, $targetdb, true, $feedback);
     $var->export_database(null);
+
+    tool_dbtransfer_rebuild_target_log_actions($targetdb, $feedback);
+}
+
+/**
+ * Very hacky function for rebuilding of log actions in target database.
+ * @param moodle_database $target
+ * @param progress_trace $feedback
+ * @return void
+ * @throws Exception on conversion error
+ */
+function tool_dbtransfer_rebuild_target_log_actions(moodle_database $target, progress_trace $feedback = null) {
+    global $DB, $CFG;
+    require_once("$CFG->libdir/upgradelib.php");
+
+    $feedback->output(get_string('convertinglogdisplay', 'tool_dbtransfer'));
+
+    $olddb = $DB;
+    $DB = $target;
+    try {
+        $DB->delete_records('log_display', array('component'=>'moodle'));
+        log_update_descriptions('moodle');
+        $plugintypes = get_plugin_types();
+        foreach ($plugintypes as $type=>$location) {
+            $plugs = get_plugin_list($type);
+            foreach ($plugs as $plug=>$fullplug) {
+                $component = $type.'_'.$plug;
+                $DB->delete_records('log_display', array('component'=>$component));
+                log_update_descriptions($component);
+            }
+        }
+    } catch (Exception $e) {
+        $DB = $olddb;
+        throw $e;
+    }
+    $DB = $olddb;
+    $feedback->output(get_string('done', 'core_dbtransfer', null), 1);
 }
 
 /**
@@ -105,7 +142,7 @@ function tool_dbtransfer_get_drivers() {
         $dblibrary = $matches[2];
 
         if ($dbtype === 'sqlite3') {
-            // Ignored unfinished.
+            // Blacklist unfinished drivers.
             continue;
         }