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Now every link to forums (from resources and forums) and every link
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to resources (from resources and forums) are re-encoded in backup/restore.

I could reduce the code size but for now I prefer to have it this looong
form to clarify what it's doing.

Please, test, test and test...
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stronk7 committed May 8, 2004
1 parent 92ff725 commit 5b76e6f
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Showing 5 changed files with 286 additions and 6 deletions.
16 changes: 11 additions & 5 deletions backup/STATUS.txt
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Expand Up @@ -126,9 +126,9 @@ Backup Details:
- Modify the backup frontend..............................NOT EXISTS
- Modify the backup of course_sections and course_modules.NOT EXISTS
- Modify every module backuplib to work properly..........NOT EXISTS
- Encode every possible internal link........................IN PROGRESS
- Encode every possible internal link........................DONE
- Links to forums.........................................DONE
- Links to resources......................................NOT EXISTS
- Links to resources......................................DONE
Restore Details:
===============
- Delete old entries at restore start........................DONE
Expand Down Expand Up @@ -245,11 +245,17 @@ Restore Details:
- From database...........................................DONE
- From filesystem.........................................DONE
- Upload backup files........................................DONE
- Decode every possible internal link........................IN PROGRESS
- Links to forums.........................................IN PROGRESS
- Decode every possible internal link........................DONE
- Links to forums.........................................DONE
- From forums (post->message)..........................DONE
- From forums (forum->intro)...........................DONE
- From resources (resource->summary)...................DONE
- From resources (resource->alltext)...................DONE
- Links to resources......................................DONE
- From forums (post->message)..........................DONE
- From forums (forum->intro)...........................DONE
- From resources (resource->summary)...................DONE
- From resources (resource->alltext)...................DONE
- Links to resources......................................NOT EXISTS

========== ========== ========== =========== =========== =========== ===

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2 changes: 1 addition & 1 deletion backup/version.php
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Expand Up @@ -5,6 +5,6 @@
// database (backup_version) to determine whether upgrades should
// be performed (see db/backup_*.php)

$backup_version = 2004050800; // The current version is a date (YYYYMMDDXX)
$backup_version = 2004050801; // The current version is a date (YYYYMMDDXX)

$backup_release = "1.3 development"; // User-friendly version number
35 changes: 35 additions & 0 deletions mod/forum/restorelib.php
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Expand Up @@ -951,6 +951,41 @@ function forum_decode_content_links_caller($restore) {
}
}

//RESOURCE: Decode every RESOURCE (summary) in the coure

//Check we are restoring resources
if ($restore->mods['resource']->restore == 1) {
//Get all course resources
if ($resources = get_records_sql ("SELECT r.id, r.summary
FROM {$CFG->prefix}resource r
WHERE r.course = $restore->course_id")) {
//Iterate over each resource->summary
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($resources as $resource) {
//Increment counter
$i++;
$content = $resource->summary;
$result = forum_decode_content_links($content,$restore);
if ($result != $content) {
//Update record
$resource->summary = addslashes($result);
$status = update_record("resource",$resource);
if ($CFG->debug>7) {
echo "<br><hr>".$content."<br>changed to</br>".$result."<hr><br>";
}
}
//Do some output
if (($i+1) % 5 == 0) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br>";
}
backup_flush(300);
}
}
}
}

echo "</ul>";
return $status;
}
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14 changes: 14 additions & 0 deletions mod/resource/backuplib.php
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Expand Up @@ -57,10 +57,24 @@ function resource_check_backup_mods($course,$user_data=false,$backup_unique_code
return $info;
}

//Return a content encoded to support interactivities linking. Every module
//should have its own. They are called automatically from the backup procedure.
function resource_encode_content_links ($content,$preferences) {

global $CFG;

$base = preg_quote($CFG->wwwroot,"/");

//Link to the list of resources
$buscar="/(".$base."\/mod\/resource\/index.php\?id\=)([0-9]+)/";
$result= preg_replace($buscar,'$@RESOURCEINDEX*$2@$',$content);

//Link to resource view by moduleid
$buscar="/(".$base."\/mod\/resource\/view.php\?id\=)([0-9]+)/";
$result= preg_replace($buscar,'$@RESOURCEVIEWBYID*$2@$',$result);

return $result;
}

// INTERNAL FUNCTIONS. BASED IN THE MOD STRUCTURE

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225 changes: 225 additions & 0 deletions mod/resource/restorelib.php
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Expand Up @@ -68,6 +68,231 @@ function resource_restore_mods($mod,$restore) {
return $status;
}

//Return a content decoded to support interactivities linking. Every module
//should have its own. They are called automatically from
//resource_decode_content_links_caller() function in each module
//in the restore process
function resource_decode_content_links ($content,$restore) {

global $CFG;

$result = $content;

//Link to the list of resources

$searchstring='/\$@(RESOURCEINDEX)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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
$searchstring='/\$@(RESOURCEINDEX)\*('.$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,$CFG->wwwroot.'/mod/resource/index.php?id='.$rec->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/resource/index.php?id='.$old_id,$result);
}
}
}

//Link to resource view by moduleid

$searchstring='/\$@(RESOURCEVIEWBYID)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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
$searchstring='/\$@(RESOURCEVIEWBYID)\*('.$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,$CFG->wwwroot.'/mod/resource/view.php?id='.$rec->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/resource/view.php?id='.$old_id,$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
function resource_decode_content_links_caller($restore) {

global $CFG;

$status = true;

echo "<ul>";

//FORUM: Decode every POST (message) in the coure

//Check we are restoring forums
if ($restore->mods['forum']->restore == 1) {
echo "<li>".get_string("from")." ".get_string("modulenameplural","forum");
//Get all course posts
if ($posts = get_records_sql ("SELECT p.id, p.message
FROM {$CFG->prefix}forum_posts p,
{$CFG->prefix}forum_discussions d
WHERE d.course = $restore->course_id AND
p.discussion = d.id")) {
//Iterate over each post->message
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($posts as $post) {
//Increment counter
$i++;
$content = $post->message;
$result = resource_decode_content_links($content,$restore);
if ($result != $content) {
//Update record
$post->message = addslashes($result);
$status = update_record("forum_posts",$post);
if ($CFG->debug>7) {
echo "<br><hr>".$content."<br>changed to</br>".$result."<hr><br>";
}
}
//Do some output
if (($i+1) % 5 == 0) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br>";
}
backup_flush(300);
}
}
}
}

//FORUM: Decode every FORUM (intro) in the coure

//Check we are restoring forums
if ($restore->mods['forum']->restore == 1) {
//Get all course forums
if ($forums = get_records_sql ("SELECT f.id, f.intro
FROM {$CFG->prefix}forum f
WHERE f.course = $restore->course_id")) {
//Iterate over each forum->intro
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($forums as $forum) {
//Increment counter
$i++;
$content = $forum->intro;
$result = resource_decode_content_links($content,$restore);
if ($result != $content) {
//Update record
$forum->intro = addslashes($result);
$status = update_record("forum",$forum);
if ($CFG->debug>7) {
echo "<br><hr>".$content."<br>changed to</br>".$result."<hr><br>";
}
}
//Do some output
if (($i+1) % 5 == 0) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br>";
}
backup_flush(300);
}
}
}
}

//RESOURCE: Decode every RESOURCE (alltext) in the coure

//Check we are restoring resources
if ($restore->mods['resource']->restore == 1) {
echo "<li>".get_string("from")." ".get_string("modulenameplural","resource");
//Get all course resources
if ($resources = get_records_sql ("SELECT r.id, r.alltext
FROM {$CFG->prefix}resource r
WHERE r.course = $restore->course_id")) {
//Iterate over each resource->alltext
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($resources as $resource) {
//Increment counter
$i++;
$content = $resource->alltext;
$result = resource_decode_content_links($content,$restore);
if ($result != $content) {
//Update record
$resource->alltext = addslashes($result);
$status = update_record("resource",$resource);
if ($CFG->debug>7) {
echo "<br><hr>".$content."<br>changed to</br>".$result."<hr><br>";
}
}
//Do some output
if (($i+1) % 5 == 0) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br>";
}
backup_flush(300);
}
}
}
}

//RESOURCE: Decode every RESOURCE (summary) in the coure

//Check we are restoring resources
if ($restore->mods['resource']->restore == 1) {
//Get all course resources
if ($resources = get_records_sql ("SELECT r.id, r.summary
FROM {$CFG->prefix}resource r
WHERE r.course = $restore->course_id")) {
//Iterate over each resource->summary
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($resources as $resource) {
//Increment counter
$i++;
$content = $resource->summary;
$result = resource_decode_content_links($content,$restore);
if ($result != $content) {
//Update record
$resource->summary = addslashes($result);
$status = update_record("resource",$resource);
if ($CFG->debug>7) {
echo "<br><hr>".$content."<br>changed to</br>".$result."<hr><br>";
}
}
//Do some output
if (($i+1) % 5 == 0) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br>";
}
backup_flush(300);
}
}
}
}

echo "</ul>";
return $status;
}


//This function returns a log record with all the necessay transformations
//done. It's used by restore_log_module() to restore modules log.
function resource_restore_logs($restore,$log) {
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