MDL-22151 backup - clean old data backup & restore code
[moodle.git] / mod / data / restorelib.php
index efcd37f..4ba5aee 100644 (file)
@@ -1,4 +1,4 @@
-<?php // $Id
+<?php
 //This php script contains all the stuff to backup/restore data mod
 
     //This is the "graphical" structure of the data mod:
     //
     //-----------------------------------------------------------
 
-    //Backup data files because we've selected to backup user info
-    //and files are user info's level
-
-$fieldids = array();    //array in the format of $fieldids[$oldid]=$newid. This is needed because of double dependencies of multiple tables.
-
-
-    //Return a content encoded to support interactivities linking. Every module
-function data_restore_mods($mod,$restore) {
-    global $CFG, $DB;
-
-    $status = true;
-
-    $data = backup_getid($restore->backup_unique_code,$mod->modtype,$mod->id);
-
-    if ($data) {
-        //Now get completed xmlized object
-        $info = $data->info;
-        // if necessary, write to restorelog and adjust date/time fields
-        if ($restore->course_startdateoffset) {
-            restore_log_date_changes('Database', $restore, $info['MOD']['#'], array('TIMEAVAILABLEFROM', 'TIMEAVAILABLETO','TIMEVIEWFROM', 'TIMEVIEWTO'));
-        }
-        //traverse_xmlize($info);                                                                     //Debug
-        //print_object ($GLOBALS['traverse_array']);                                                  //Debug
-        //$GLOBALS['traverse_array']="";                                                              //Debug
-
-        $database->course = $restore->course_id;
-
-        $database->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);
-        $database->intro = backup_todb($info['MOD']['#']['INTRO']['0']['#']);
-        // Only relevant for restoring backups from 1.6 in a 1.7 install.
-        if (isset($info['MOD']['#']['RATINGS']['0']['#'])) {
-            $database->ratings = backup_todb($info['MOD']['#']['RATINGS']['0']['#']);
-        }
-        $database->comments = backup_todb($info['MOD']['#']['COMMENTS']['0']['#']);
-        $database->timeavailablefrom = backup_todb($info['MOD']['#']['TIMEAVAILABLEFROM']['0']['#']);
-        $database->timeavailableto = backup_todb($info['MOD']['#']['TIMEAVAILABLETO']['0']['#']);
-        $database->timeviewfrom = backup_todb($info['MOD']['#']['TIMEVIEWFROM']['0']['#']);
-        $database->timeviewto = backup_todb($info['MOD']['#']['TIMEVIEWTO']['0']['#']);
-        // Only relevant for restoring backups from 1.6 in a 1.7 install.
-        if (isset($info['MOD']['#']['PARTICIPANTS']['0']['#'])) {
-            $database->participants = backup_todb($info['MOD']['#']['PARTICIPANTS']['0']['#']);
-        }
-        $database->requiredentries = backup_todb($info['MOD']['#']['REQUIREDENTRIES']['0']['#']);
-        $database->requiredentriestoview = backup_todb($info['MOD']['#']['REQUIREDENTRIESTOVIEW']['0']['#']);
-        $database->maxentries = backup_todb($info['MOD']['#']['MAXENTRIES']['0']['#']);
-        $database->rssarticles = backup_todb($info['MOD']['#']['RSSARTICLES']['0']['#']);
-        $database->singletemplate = backup_todb($info['MOD']['#']['SINGLETEMPLATE']['0']['#']);
-        $database->listtemplate = backup_todb($info['MOD']['#']['LISTTEMPLATE']['0']['#']);
-        $database->listtemplateheader = backup_todb($info['MOD']['#']['LISTTEMPLATEHEADER']['0']['#']);
-        $database->listtemplatefooter = backup_todb($info['MOD']['#']['LISTTEMPLATEFOOTER']['0']['#']);
-        $database->addtemplate = backup_todb($info['MOD']['#']['ADDTEMPLATE']['0']['#']);
-        $database->rsstemplate = backup_todb($info['MOD']['#']['RSSTEMPLATE']['0']['#']);
-        $database->rsstitletemplate = backup_todb($info['MOD']['#']['RSSTITLETEMPLATE']['0']['#']);
-        $database->csstemplate = backup_todb($info['MOD']['#']['CSSTEMPLATE']['0']['#']);
-        $database->jstemplate = backup_todb($info['MOD']['#']['JSTEMPLATE']['0']['#']);
-        $database->asearchtemplate = backup_todb($info['MOD']['#']['ASEARCHTEMPLATE']['0']['#']);
-        $database->approval = backup_todb($info['MOD']['#']['APPROVAL']['0']['#']);
-        $database->scale = backup_todb($info['MOD']['#']['SCALE']['0']['#']);
-        $database->assessed = backup_todb($info['MOD']['#']['ASSESSED']['0']['#']);
-        // Only relevant for restoring backups from 1.6 in a 1.7 install.
-        if (isset($info['MOD']['#']['ASSESSPUBLIC']['0']['#'])) {
-            $database->assesspublic = backup_todb($info['MOD']['#']['ASSESSPUBLIC']['0']['#']);
-        }
-        $database->defaultsort = backup_todb($info['MOD']['#']['DEFAULTSORT']['0']['#']);
-        $database->defaultsortdir = backup_todb($info['MOD']['#']['DEFAULTSORTDIR']['0']['#']);
-        $database->editany = backup_todb($info['MOD']['#']['EDITANY']['0']['#']);
-        $database->notification = backup_todb($info['MOD']['#']['NOTIFICATION']['0']['#']);
-        if ($database->notification == null) { /// Changed to NOT NULL between 1.9 and 2.0 - MDL-14548
-            unset($database->notification);    /// Unset it if null to get proper Moodle 2.0 default (0) applied
-        }
-
-        // We have to recode the scale field if it's <0 (positive is a grade, not a scale)
-        if ($database->scale < 0) {
-            $scale = backup_getid($restore->backup_unique_code, 'scale', abs($database->scale));
-            if ($scale) {
-                $database->scale = -($scale->new_id);
-            }
-        }
-
-        $newid = $DB->insert_record ('data', $database);
-
-        //Do some output
-        if (!defined('RESTORE_SILENTLY')) {
-            echo "<li>".get_string("modulename","data")." \"".format_string($database->name,true)."\"</li>";
-        }
-
-        if ($newid) {
-            //We have the newid, update backup_ids
-            backup_putid($restore->backup_unique_code,$mod->modtype,
-                             $mod->id, $newid);
-            //Now check if want to restore user data and do it.
-            if (function_exists('restore_userdata_selected')) {
-                // Moodle 1.6
-                $restore_userdata_selected = restore_userdata_selected($restore, 'data', $mod->id);
-            } else {
-                // Moodle 1.5
-                $restore_userdata_selected = $restore->mods['data']->userinfo;
-            }
-
-            global $fieldids;
-            //Restore data_fields first!!! need to hold an array of [oldid]=>newid due to double dependencies
-            $status = $status and data_fields_restore_mods ($mod->id, $newid, $info, $restore);
-
-            // now use the new field in the defaultsort
-            $newdefaultsort = empty($fieldids[$database->defaultsort]) ? 0 : $fieldids[$database->defaultsort];
-            $DB->set_field('data', 'defaultsort', $newdefaultsort, array('id' => $newid));
-
-            if ($restore_userdata_selected) {
-                $status = $status and data_records_restore_mods ($mod->id, $newid, $info, $restore);
-            }
-
-            // If the backup contained $data->participants, $data->assesspublic
-            // and $data->groupmode, we need to convert the data to use Roles.
-            // It means the backup was made pre Moodle 1.7. We check the
-            // backup_version to make sure.
-            if (isset($database->participants) && isset($database->assesspublic)) {
-
-                if (!$teacherroles = get_archetype_roles('teacher')) {
-                      notice('Default teacher role was not found. Roles and permissions '.
-                             'for your database modules will have to be manually set.');
-                }
-                if (!$studentroles = get_archetype_roles('student')) {
-                      notice('Default student role was not found. Roles and permissions '.
-                             'for all your database modules will have to be manually set.');
-                }
-                if (!$guestroles = get_archetype_roles('guest')) {
-                      notice('Default guest role was not found. Roles and permissions '.
-                             'for all your database modules will have to be manually set.');
-                }
-                require_once($CFG->dirroot.'/mod/data/lib.php');
-                data_convert_to_roles($database, $teacherroles, $studentroles,
-                                      $restore->mods['data']->instances[$mod->id]->restored_as_course_module);
-            }
-
-        } else {
-            $status = false;
-        }
-    } else {
-        $status = false;
-    }
-
-    return $status;
-}
-
-function data_fields_restore_mods ($old_data_id, $new_data_id, $info, $restore) {
-    global $CFG, $fieldids, $DB;
-
-
-    $fields = $info['MOD']['#']['FIELDS']['0']['#']['FIELD'];
-
-    for ($i = 0; $i < sizeof($fields); $i++) {
-
-        $fie_info = $fields[$i];
-        $oldid = backup_todb($fie_info['#']['ID']['0']['#']);
-
-        $field -> dataid = $new_data_id;
-        $field -> type = backup_todb($fie_info['#']['TYPE']['0']['#']);
-        $field -> name = backup_todb($fie_info['#']['NAME']['0']['#']);
-        $field -> description = backup_todb($fie_info['#']['DESCRIPTION']['0']['#']);
-        $field -> param1 = backup_todb($fie_info['#']['PARAM1']['0']['#']);
-        $field -> param2 = backup_todb($fie_info['#']['PARAM2']['0']['#']);
-        $field -> param3 = backup_todb($fie_info['#']['PARAM3']['0']['#']);
-        $field -> param4 = backup_todb($fie_info['#']['PARAM4']['0']['#']);
-        $field -> param5 = backup_todb($fie_info['#']['PARAM5']['0']['#']);
-        $field -> param6 = backup_todb($fie_info['#']['PARAM6']['0']['#']);
-        $field -> param7 = backup_todb($fie_info['#']['PARAM7']['0']['#']);
-        $field -> param8 = backup_todb($fie_info['#']['PARAM8']['0']['#']);
-        $field -> param9 = backup_todb($fie_info['#']['PARAM9']['0']['#']);
-        $field -> param10 = backup_todb($fie_info['#']['PARAM10']['0']['#']);
-
-        $newid = $DB->insert_record ("data_fields",$field);
-
-        $fieldids[$oldid] = $newid;    //so we can use them in sub tables that depends on both fieldid and recordid
-
-        //Do some output
-        if (($i+1) % 50 == 0) {
-            if (!defined('RESTORE_SILENTLY')) {
-                echo ".";
-                if (($i+1) % 1000 == 0) {
-                    echo "<br />";
-                }
-            }
-            backup_flush(300);
-        }
-
-        if ($newid) {
-            //We have the newid, update backup_ids
-            $status = backup_putid($restore->backup_unique_code,"data_fields",$oldid, $newid);
-        } else {
-            $status = false;
-        }
-
-    }
-    return $status;
-
-}
-
-function data_records_restore_mods ($old_data_id, $new_data_id, $info, $restore) {
-    global $CFG, $fieldids, $DB;
-
-    $status = true;
-
-    $records = isset($info['MOD']['#']['RECORDS']['0']['#']['RECORD']) ? $info['MOD']['#']['RECORDS']['0']['#']['RECORD'] : array();
-
-    if (empty($records)) { // no records to restore
-        return true;
-    }
-
-    for ($i = 0; $i < sizeof($records); $i++) {
-
-        $rec_info = $records[$i];
-        $oldid = backup_todb($rec_info['#']['ID']['0']['#']);
-
-        $record = new object();
-        $record -> dataid = $new_data_id;
-        $record -> userid = backup_todb($rec_info['#']['USERID']['0']['#']);
-        $record -> groupid = backup_todb($rec_info['#']['GROUPID']['0']['#']);
-        $record -> timecreated = backup_todb($rec_info['#']['TIMECREATED']['0']['#']);
-        $record -> timemodified = backup_todb($rec_info['#']['TIMEMODIFIED']['0']['#']);
-        $record -> approved = backup_todb($rec_info['#']['APPROVED']['0']['#']);
-        $user = backup_getid($restore->backup_unique_code,"user",$record->userid);
-        $group= restore_group_getid($restore, $record->groupid);
-
-        if ($user) {
-            $record->userid = $user->new_id;
-        }
-        if ($group) {
-            $record->groupid= $group->new_id;
-        }
-
-        $newid = $DB->insert_record ("data_records",$record);
-
-        //Do some output
-        if (($i+1) % 50 == 0) {
-            if (!defined('RESTORE_SILENTLY')) {
-                echo ".";
-                if (($i+1) % 1000 == 0) {
-                    echo "<br />";
-                }
-            }
-            backup_flush(300);
-        }
-
-        if ($newid) {
-            //We have the newid, update backup_ids
-            $status = $status and backup_putid($restore->backup_unique_code,"data_records",$oldid, $newid);
-
-            $status = $status and data_content_restore_mods ($oldid, $newid, $old_data_id, $new_data_id, $rec_info, $restore);
-            $status = $status and data_ratings_restore_mods ($oldid, $newid, $info, $rec_info);
-            $status = $status and data_comments_restore_mods ($oldid, $newid, $old_data_id, $new_data_id, $info, $rec_info);
-
-        } else {
-            $status = false;
-        }
-    }
-    return $status;
-}
-
-function data_content_restore_mods ($old_record_id, $new_record_id, $old_data_id, $new_data_id, $recinfo, $restore) {
-    global $CFG, $fieldids, $DB;
-
-    $status = true;
-
-    $contents = $recinfo['#']['CONTENTS']['0']['#']['CONTENT'];
-
-    for ($i = 0; $i < sizeof($contents); $i++) {
-
-        $con_info = $contents[$i];
-        $oldid = backup_todb($con_info['#']['ID']['0']['#']);
-        $oldfieldid = backup_todb($con_info['#']['FIELDID']['0']['#']);
-        $oldrecordid = backup_todb($con_info['#']['RECORDID']['0']['#']);
-
-        $content -> recordid = $new_record_id;
-        $content -> fieldid = $fieldids[$oldfieldid];
-        $content -> content = backup_todb($con_info['#']['CONTENT']['0']['#']);
-        $content -> content1 = backup_todb($con_info['#']['CONTENT1']['0']['#']);
-        $content -> content2 = backup_todb($con_info['#']['CONTENT2']['0']['#']);
-        $content -> content3 = backup_todb($con_info['#']['CONTENT3']['0']['#']);
-        $content -> content4 = backup_todb($con_info['#']['CONTENT4']['0']['#']);
-        $newid = $DB->insert_record ("data_content",$content);
-
-        //Do some output
-        if (($i+1) % 50 == 0) {
-            if (!defined('RESTORE_SILENTLY')) {
-                echo ".";
-                if (($i+1) % 1000 == 0) {
-                    echo "<br />";
-                }
-            }
-            backup_flush(300);
-        }
-
-        if ($newid) {
-            //We have the newid, update backup_ids
-
-            $status = $status and data_restore_files ($old_data_id, $new_data_id, $oldfieldid, $content->fieldid, $oldrecordid, $content->recordid, $recinfo, $restore);
-            $status = $status and backup_putid($restore->backup_unique_code,"data_content",$oldid, $newid);
-        } else {
-            $status = false;
-        }
-    }
-    return $status;
-}
-
-
-function data_restore_files ($old_data_id, $new_data_id, $old_field_id, $new_field_id, $old_record_id, $new_record_id, $recinfo, $restore) {
-    global $CFG, $DB;
-
-    $status = true;
-    $todo = false;
-    $moddata_path = "";
-    $data_path = "";
-    $temp_path = "";
-
-    //First, we check to "course_id" exists and create is as necessary
-    //in CFG->dataroot
-    $dest_dir = $CFG->dataroot."/".$restore->course_id;
-    $status = check_dir_exists($dest_dir,true);
-
-    //Now, locate course's moddata directory
-    $moddata_path = $CFG->dataroot."/".$restore->course_id."/".$CFG->moddata;
-
-    //Check it exists and create it
-    $status = check_dir_exists($moddata_path,true);
-
-    //Now, locate data directory
-    if ($status) {
-        $data_path = $moddata_path."/data";
-        //Check it exists and create it
-        $status = check_dir_exists($data_path,true);
-    }
-
-    //Now locate the temp dir we are gong to restore
-    if ($status) {
-        $temp_path = $CFG->dataroot."/temp/backup/".$restore->backup_unique_code.
-                    "/moddata/data/".$old_data_id."/".$old_field_id."/".$old_record_id;
-        $todo = check_dir_exists($temp_path);
-    }
-
-    //If todo, we create the neccesary dirs in course moddata/data
-    if ($status and $todo) {
-        //First this data id
-        $this_data_path = $data_path."/".$new_data_id;
-
-        $status = check_dir_exists($this_data_path,true);
-        //Now this user id
-        $this_field_path = $this_data_path."/".$new_field_id;
-        $status = check_dir_exists($this_field_path,true);
-        $this_record_path = $this_field_path = $this_field_path."/".$new_record_id;
-        $status = check_dir_exists($this_record_path,true);
-        //And now, copy temp_path to user_data_path
-
-        $status = @backup_copy_file($temp_path, $this_record_path);
-    }
-
-    return $status;
-}
-
-function data_ratings_restore_mods ($oldid, $newid, $info, $rec_info) {
-    global $CFG, $DB;
-
-    $status = true;
-
-    $ratings= isset($rec_info['#']['RATINGS']['0']['#']['RATING']) ? $rec_info['#']['RATINGS']['0']['#']['RATING'] : array();
-
-    if (empty($ratings)) { // no ratings to restore
-        return true;
-    }
-    for ($i = 0; $i < sizeof($ratings); $i++) {
-
-        $rat_info = $ratings[$i];
-
-        $rating -> recordid = $newid;
-        $rating -> userid = backup_todb($rat_info['#']['USERID']['0']['#']);
-        $rating -> rating = backup_todb($rat_info['#']['RATING']['0']['#']);
-
-        $DB->insert_record("data_ratings", $rating);
-    }
-    return $status;
-}
-
-function data_comments_restore_mods ($oldid, $newid, $old_data_id, $new_data_id, $info, $rec_info) {
-    global $CFG, $DB;
-
-    $status = true;
-
-    $newmodcontext = restore_get_new_context($restore, 'course_modules', CONTEXT_MODULE, $old_gid);
-
-    $comments= isset($rec_info['#']['COMMENTS']['0']['#']['COMMENT']) ? $rec_info['#']['COMMENTS']['0']['#']['COMMENT'] : array();
-
-    if (empty($comments)) { // no comments to restore
-        return true;
-    }
-
-    for ($i = 0; $i < sizeof($comments); $i++) {
-
-        $com_info = $comments[$i];
-
-        $comment->itemid = $newid;
-        $comment->contextid = $newmodcontext->id;
-        $comment->userid = backup_todb($com_info['#']['USERID']['0']['#']);
-        $comment->content = backup_todb($com_info['#']['CONTENT']['0']['#']);
-        $comment->commentarea = backup_todb($com_info['#']['COMMENTAREA']['0']['#']);
-        $comment->timecreated = backup_todb($com_info['#']['TIMECREATED']['0']['#']);
-        $user = backup_getid($restore->backup_unique_code,"user",$comment->userid);
-        if ($user) {
-            $comment->userid = $user->new_id;
-        }
-        $DB->insert_record("comments", $comment);
-    }
-    return $status;
-
-}
-
-/**
- * Returns a content decoded to support interactivities linking. Every module
- * should have its own. They are called automatically from
- * xxxx_decode_content_links_caller() function in each module
- * in the restore process.
- *
- * @param string $content the content to be decoded
- * @param object $restore the preferences used in restore
- * @return string the decoded string
- */
-function data_decode_content_links ($content,$restore) {
-
-    global $CFG;
-
-    $result = $content;
-
-/// Link to the list of datas
-
-    $searchstring='/\$@(DATAINDEX)\*([0-9]+)@\$/';
-/// We look for it
-    preg_match_all($searchstring,$content,$foundset);
-/// If found, then we are going to look for its new id (in backup tables)
-    if ($foundset[0]) {
-    /// print_object($foundset);                                     //Debug
-    /// Iterate over foundset[2]. They are the old_ids
-        foreach($foundset[2] as $old_id) {
-        /// We get the needed variables here (course id)
-            $rec = backup_getid($restore->backup_unique_code,"course",$old_id);
-        /// Personalize the searchstring
-            $searchstring='/\$@(DATAINDEX)\*('.$old_id.')@\$/';
-        /// If it is a link to this course, update the link to its new location
-            if($rec->new_id) {
-            /// Now replace it
-                $result= preg_replace($searchstring,$CFG->wwwroot.'/mod/data/index.php?id='.$rec->new_id,$result);
-            } else {
-            /// It's a foreign link so leave it as original
-                $result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/data/index.php?id='.$old_id,$result);
-            }
-        }
-    }
-
-/// Link to data view by moduleid
-
-    $searchstring='/\$@(DATAVIEWBYID)\*([0-9]+)@\$/';
-/// We look for it
-    preg_match_all($searchstring,$result,$foundset);
-/// If found, then we are going to look for its new id (in backup tables)
-    if ($foundset[0]) {
-    /// print_object($foundset);                                     //Debug
-    /// Iterate over foundset[2]. They are the old_ids
-        foreach($foundset[2] as $old_id) {
-        /// We get the needed variables here (course_modules id)
-            $rec = backup_getid($restore->backup_unique_code,"course_modules",$old_id);
-        /// Personalize the searchstring
-            $searchstring='/\$@(DATAVIEWBYID)\*('.$old_id.')@\$/';
-        /// If it is a link to this course, update the link to its new location
-            if($rec->new_id) {
-            /// Now replace it
-                $result= preg_replace($searchstring,$CFG->wwwroot.'/mod/data/view.php?id='.$rec->new_id,$result);
-            } else {
-            /// It's a foreign link so leave it as original
-                $result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/data/view.php?id='.$old_id,$result);
-            }
-        }
-    }
-
-/// Link to data view by dataid
-
-    $searchstring='/\$@(DATAVIEWBYD)\*([0-9]+)@\$/';
-/// We look for it
-    preg_match_all($searchstring,$result,$foundset);
-/// If found, then we are going to look for its new id (in backup tables)
-    if ($foundset[0]) {
-    /// print_object($foundset);                                     //Debug
-    /// Iterate over foundset[2]. They are the old_ids
-        foreach($foundset[2] as $old_id) {
-        /// We get the needed variables here (data id)
-            $rec = backup_getid($restore->backup_unique_code,"data",$old_id);
-        /// Personalize the searchstring
-            $searchstring='/\$@(DATAVIEWBYD)\*('.$old_id.')@\$/';
-        /// If it is a link to this course, update the link to its new location
-            if($rec->new_id) {
-            /// Now replace it
-                $result= preg_replace($searchstring,$CFG->wwwroot.'/mod/data/view.php?d='.$rec->new_id,$result);
-            } else {
-            /// It's a foreign link so leave it as original
-                $result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/data/view.php?d='.$old_id,$result);
-            }
-        }
-    }
-
-/// Link to data record (element)
-
-    $searchstring='/\$@(DATAVIEWRECORD)\*([0-9]+)\*([0-9]+)@\$/';
-/// We look for it
-    preg_match_all($searchstring,$result,$foundset);
-/// If found, then we are going to look for its new id (in backup tables)
-    if ($foundset[0]) {
-    /// print_object($foundset);                                     //Debug
-    /// Iterate over foundset[2] and foundset[3]. They are the old_ids
-        foreach($foundset[2] as $key => $old_id) {
-            $old_id2 = $foundset[3][$key];
-        /// We get the needed variables here (data id and record id)
-            $rec = backup_getid($restore->backup_unique_code,"data",$old_id);
-            $rec2 = backup_getid($restore->backup_unique_code,"data_records",$old_id2);
-        /// Personalize the searchstring
-            $searchstring='/\$@(DATAVIEWRECORD)\*('.$old_id.')\*('.$old_id2.')@\$/';
-        /// If it is a link to this course, update the link to its new location
-            if($rec->new_id && $rec2->new_id) {
-            /// Now replace it
-                $result= preg_replace($searchstring,$CFG->wwwroot.'/mod/data/view.php?d='.$rec->new_id.'&amp;rid='.$rec2->new_id,$result);
-            } else {
-            /// It's a foreign link so leave it as original
-                $result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/data/view.php?d='.$old_id.'&amp;rid='.$old_id2,$result);
-            }
-        }
-    }
-
-    return $result;
-}
-
-/**
- * This function makes all the necessary calls to xxxx_decode_content_links()
- * function in each module, passing them the desired contents to be decoded
- * from backup format to destination site/course in order to mantain inter-activities
- * working in the backup/restore process. It's called from restore_decode_content_links()
- * function in restore process
- *
- * @param object $restore the preferences used in restore
- * @return boolean status of the execution
- */
-function data_decode_content_links_caller($restore) {
-    global $CFG, $DB;
-
-    $status = true;
-
-/// Process every DATA (intro, all HTML templates) in the course
-/// Supported fields for main table:
-    $supportedfields = array('intro','singletemplate','listtemplate',
-        'listtemplateheader','addtemplate','rsstemplate','rsstitletemplate');
-    if ($datas = $DB->get_records_sql ("SELECT d.id, ".implode(',',$supportedfields)."
-                                          FROM {data} d
-                                         WHERE d.course = ?", array($restore->course_id))) {
-    /// Iterate over each data
-        $i = 0;   //Counter to send some output to the browser to avoid timeouts
-        foreach ($datas as $data) {
-        /// Increment counter
-            $i++;
-
-        /// Make a new copy of the data object with nothing in, to use if
-        /// changes are necessary (allows us to do $DB->update_record without
-        /// worrying about every single field being included and needing
-        /// slashes).
-            $newdata = new stdClass;
-            $newdata->id=$data->id;
-
-        /// Loop through handling each supported field
-            $changed = false;
-            foreach($supportedfields as $field) {
-                $result = restore_decode_content_links_worker($data->{$field},$restore);
-                if ($result != $data->{$field}) {
-                    $newdata->{$field} = $result;
-                    $changed = true;
-                    if (debugging()) {
-                        if (!defined('RESTORE_SILENTLY')) {
-                            echo '<br /><hr />'.s($data->{$field}).'<br />changed to<br />'.s($result).'<hr /><br />';
-                        }
-                    }
-                }
-            }
-
-        /// Update record if any field changed
-            if($changed) {
-                $DB->update_record("data",$newdata);
-            }
-
-        /// Do some output
-            if (($i+1) % 5 == 0) {
-                if (!defined('RESTORE_SILENTLY')) {
-                    echo ".";
-                    if (($i+1) % 100 == 0) {
-                        echo "<br />";
-                    }
-                }
-                backup_flush(300);
-            }
-        }
-    }
-
-/// Process every COMMENT (content) in the course
-    if ($comments = $DB->get_records_sql ("SELECT dc.id, dc.content
-                                             FROM {data} d,
-                                                  {data_records} dr,
-                                                  {data_comments} dc
-                                            WHERE d.course = ?
-                                                  AND dr.dataid = d.id
-                                                  AND dc.recordid = dr.id", array($restore->course_id))) {
-    /// Iterate over each data_comments->content
-        $i = 0;   //Counter to send some output to the browser to avoid timeouts
-        foreach ($comments as $comment) {
-        /// Increment counter
-            $i++;
-            $content = $comment->content;
-            $result = restore_decode_content_links_worker($content,$restore);
-            if ($result != $content) {
-            /// Update record
-                $comment->content = $result;
-                $DB->update_record("data_comments",$comment);
-                if (debugging()) {
-                    if (!defined('RESTORE_SILENTLY')) {
-                        echo '<br /><hr />'.s($content).'<br />changed to<br />'.s($result).'<hr /><br />';
-                    }
-                }
-            }
-        /// Do some output
-            if (($i+1) % 5 == 0) {
-                if (!defined('RESTORE_SILENTLY')) {
-                    echo ".";
-                    if (($i+1) % 100 == 0) {
-                        echo "<br />";
-                    }
-                }
-                backup_flush(300);
-            }
-        }
-    }
-
-/// Process every CONTENT (content, content1, content2, content3, content4) in the course
-    if ($contents = $DB->get_records_sql("SELECT dc.id, dc.content, dc.content1, dc.content2, dc.content3, dc.content4
-                                            FROM {data} d,
-                                                 {data_records} dr,
-                                                 {data_content} dc
-                                           WHERE d.course = ?
-                                                 AND dr.dataid = d.id
-                                                 AND dc.recordid = dr.id", array($restore->course_id))) {
-    /// Iterate over each data_content->content, content1, content2, content3 and content4
-        $i = 0;   //Counter to send some output to the browser to avoid timeouts
-        foreach ($contents as $cnt) {
-        /// Increment counter
-            $i++;
-            $content = $cnt->content;
-            $content1 = $cnt->content1;
-            $content2 = $cnt->content2;
-            $content3 = $cnt->content3;
-            $content4 = $cnt->content4;
-            $result = restore_decode_content_links_worker($content,$restore);
-            $result1 = restore_decode_content_links_worker($content1,$restore);
-            $result2 = restore_decode_content_links_worker($content2,$restore);
-            $result3 = restore_decode_content_links_worker($content3,$restore);
-            $result4 = restore_decode_content_links_worker($content4,$restore);
-            if ($result != $content || $result1 != $content1 || $result2 != $content2 ||
-                $result3 != $content3 || $result4 != $content4) {
-            /// Unset fields to update only the necessary ones
-                unset($cnt->content);
-                unset($cnt->content1);
-                unset($cnt->content2);
-                unset($cnt->content3);
-                unset($cnt->content4);
-            /// Conditionally set the fields
-                if ($result != $content) {
-                    $cnt->content = $result;
-                }
-                if ($result1 != $content1) {
-                    $cnt->content1 = $result1;
-                }
-                if ($result2 != $content2) {
-                    $cnt->content2 = $result2;
-                }
-                if ($result3 != $content3) {
-                    $cnt->content3 = $result3;
-                }
-                if ($result4 != $content4) {
-                    $cnt->content4 = $result4;
-                }
-            /// Update record with the changed fields
-                $DB->update_record("data_content",$cnt);
-                if (debugging()) {
-                    if (!defined('RESTORE_SILENTLY')) {
-                        echo '<br /><hr />'.s($content).'<br />changed to<br />'.s($result).'<hr /><br />';
-                    }
-                }
-            }
-        /// Do some output
-            if (($i+1) % 5 == 0) {
-                if (!defined('RESTORE_SILENTLY')) {
-                    echo ".";
-                    if (($i+1) % 100 == 0) {
-                        echo "<br />";
-                    }
-                }
-                backup_flush(300);
-            }
-        }
-    }
-
-    return $status;
+// !! data module never has had this in previous versions of restore. Amazing!
+function data_restore_logs($restore,$log) {
+    // nothing here, just a reminder for work todo in 2.0
 }