From c9deaa8e798ce0a0bc29cbce4ddabdc1d0c16504 Mon Sep 17 00:00:00 2001
From: Eric Merrill <merrill@oakland.edu>
Date: Tue, 26 Mar 2013 15:18:10 -0400
Subject: [PATCH] MDL-25631 backup Decoupling legacy files from course config
 settigs. If they are present, they will be restored.

---
 backup/moodle2/restore_course_task.class.php |  2 ++
 backup/moodle2/restore_stepslib.php          | 24 +++++++++++++++++++-
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/backup/moodle2/restore_course_task.class.php b/backup/moodle2/restore_course_task.class.php
index 8a8713a097c66..5f231e97d7f32 100644
--- a/backup/moodle2/restore_course_task.class.php
+++ b/backup/moodle2/restore_course_task.class.php
@@ -71,6 +71,8 @@ public function build() {
             $this->add_step(new restore_course_structure_step('course_info', 'course.xml'));
         }
 
+        $this->add_step(new restore_course_legacy_files_step('legacy_files'));
+
         // Restore course enrolments (plugins and membership). Conditionally prevented for any IMPORT/HUB operation
         if ($this->plan->get_mode() != backup::MODE_IMPORT && $this->plan->get_mode() != backup::MODE_HUB) {
             $this->add_step(new restore_enrolments_structure_step('course_enrolments', 'enrolments.xml'));
diff --git a/backup/moodle2/restore_stepslib.php b/backup/moodle2/restore_stepslib.php
index f25447552c6b4..5afd99e4a51e9 100644
--- a/backup/moodle2/restore_stepslib.php
+++ b/backup/moodle2/restore_stepslib.php
@@ -1459,7 +1459,6 @@ protected function after_execute() {
 
         // Add course related files, without itemid to match
         $this->add_related_files('course', 'summary', null);
-        $this->add_related_files('course', 'legacy', null);
 
         // Deal with legacy allowed modules.
         if ($this->legacyrestrictmodules) {
@@ -1486,6 +1485,29 @@ protected function after_execute() {
     }
 }
 
+/**
+ * Execution step that will migrate legacy files if present.
+ */
+class restore_course_legacy_files_step extends restore_execution_step {
+    public function define_execution() {
+        global $DB;
+
+        // Do a check for legacy files and skip if there are none.
+        $sql = 'SELECT count(*)
+                  FROM {backup_files_temp}
+                 WHERE backupid = ?
+                   AND contextid = ?
+                   AND component = ?
+                   AND filearea  = ?';
+        $params = array($this->get_restoreid(), $this->task->get_old_contextid(), 'course', 'legacy');
+
+        if ($DB->count_records_sql($sql, $params)) {
+            $DB->set_field('course', 'legacyfiles', 2, array('id' => $this->get_courseid()));
+            restore_dbops::send_files_to_pool($this->get_basepath(), $this->get_restoreid(), 'course',
+                'legacy', $this->task->get_old_contextid(), $this->task->get_userid());
+        }
+    }
+}
 
 /*
  * Structure step that will read the roles.xml file (at course/activity/block levels)