From afb4494bd0113779da569ee367ba5aae44d8bc9f Mon Sep 17 00:00:00 2001
From: David Mudrak <david@moodle.com>
Date: Sat, 4 Jun 2011 21:04:02 +0200
Subject: [PATCH] MDL-27448 URL resource module backup conversion improved

The patch also fixes invalid 'course' field in moodle2 backup code.
---
 mod/url/backup/moodle1/lib.php                | 77 +++++++++++++++----
 .../backup/moodle2/backup_url_stepslib.php    |  2 +-
 2 files changed, 65 insertions(+), 14 deletions(-)

diff --git a/mod/url/backup/moodle1/lib.php b/mod/url/backup/moodle1/lib.php
index bd6cf472eb8..862762021f1 100644
--- a/mod/url/backup/moodle1/lib.php
+++ b/mod/url/backup/moodle1/lib.php
@@ -31,13 +31,14 @@ defined('MOODLE_INTERNAL') || die();
  */
 class moodle1_mod_url_handler extends moodle1_resource_successor_handler {
 
+    /** @var moodle1_file_manager instance */
+    protected $fileman = null;
+
     /**
      * Converts /MOODLE_BACKUP/COURSE/MODULES/MOD/RESOURCE data
      * Called by moodle1_mod_resource_handler::process_resource()
      */
     public function process_legacy_resource($data) {
-        $data['externalurl'] = $data['reference'];
-        unset($data['reference']);
 
         // get the course module id and context id
         $instanceid = $data['id'];
@@ -45,21 +46,71 @@ class moodle1_mod_url_handler extends moodle1_resource_successor_handler {
         $moduleid   = $cminfo['id'];
         $contextid  = $this->converter->get_contextid(CONTEXT_MODULE, $moduleid);
 
-        // we now have all information needed to start writing into the file
+        // prepare the new url instance record
+        $url                 = array();
+        $url['id']           = $data['id'];
+        $url['name']         = $data['name'];
+        $url['intro']        = $data['intro'];
+        $url['introformat']  = $data['introformat'];
+        $url['externalurl']  = $data['reference'];
+        $url['timemodified'] = $data['timemodified'];
+
+        // populate display and displayoptions fields
+        $options = array('printheading' => 0, 'printintro' => 1);
+        if ($data['options'] == 'frame') {
+            $url['display'] = RESOURCELIB_DISPLAY_FRAME;
+
+        } else if ($data['options'] == 'objectframe') {
+            $url['display'] = RESOURCELIB_DISPLAY_EMBED;
+
+        } else if ($data['popup']) {
+            $url['display'] = RESOURCELIB_DISPLAY_POPUP;
+            $rawoptions = explode(',', $data['popup']);
+            foreach ($rawoptions as $rawoption) {
+                list($name, $value) = explode('=', trim($rawoption), 2);
+                if ($value > 0 and ($name == 'width' or $name == 'height')) {
+                    $options['popup'.$name] = $value;
+                    continue;
+                }
+            }
+
+        } else {
+            $url['display'] = RESOURCELIB_DISPLAY_AUTO;
+        }
+        $url['displayoptions'] = serialize($options);
+
+        // populate the parameters field
+        $parameters = array();
+        if ($data['alltext']) {
+            $rawoptions = explode(',', $data['alltext']);
+            foreach ($rawoptions as $rawoption) {
+                list($variable, $parameter) = explode('=', trim($rawoption), 2);
+                $parameters[$parameter] = $variable;
+            }
+        }
+        $url['parameters'] = serialize($parameters);
+
+        // convert course files embedded into the intro
+        $this->fileman = $this->converter->get_file_manager($contextid, 'mod_url', 'intro');
+        $url['intro'] = moodle1_converter::migrate_referenced_files($url['intro'], $this->fileman);
+
+        // write url.xml
         $this->open_xml_writer("activities/url_{$moduleid}/url.xml");
         $this->xmlwriter->begin_tag('activity', array('id' => $instanceid, 'moduleid' => $moduleid,
             'modulename' => 'url', 'contextid' => $contextid));
-        $this->xmlwriter->begin_tag('url', array('id' => $instanceid));
-
-        unset($data['id']); // we already write it as attribute, do not repeat it as child element
-        foreach ($data as $field => $value) {
-            $this->xmlwriter->full_tag($field, $value);
-        }
-    }
-
-    public function on_legacy_resource_end() {
-        $this->xmlwriter->end_tag('url');
+        $this->write_xml('url', $url, array('/url/id'));
         $this->xmlwriter->end_tag('activity');
         $this->close_xml_writer();
+
+        // write inforef.xml
+        $this->open_xml_writer("activities/url_{$moduleid}/inforef.xml");
+        $this->xmlwriter->begin_tag('inforef');
+        $this->xmlwriter->begin_tag('fileref');
+        foreach ($this->fileman->get_fileids() as $fileid) {
+            $this->write_xml('file', array('id' => $fileid));
+        }
+        $this->xmlwriter->end_tag('fileref');
+        $this->xmlwriter->end_tag('inforef');
+        $this->close_xml_writer();
     }
 }
diff --git a/mod/url/backup/moodle2/backup_url_stepslib.php b/mod/url/backup/moodle2/backup_url_stepslib.php
index d3133fb7223..40c8892a615 100644
--- a/mod/url/backup/moodle2/backup_url_stepslib.php
+++ b/mod/url/backup/moodle2/backup_url_stepslib.php
@@ -37,7 +37,7 @@ class backup_url_activity_structure_step extends backup_activity_structure_step
 
         // Define each element separated
         $url = new backup_nested_element('url', array('id'), array(
-            'course','name', 'intro', 'introformat', 'externalurl',
+            'name', 'intro', 'introformat', 'externalurl',
             'display', 'displayoptions', 'parameters', 'timemodified'));