diff options
Diffstat (limited to 'lib/migrate.php')
| -rw-r--r-- | lib/migrate.php | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/lib/migrate.php b/lib/migrate.php new file mode 100644 index 000000000..43a003a3c --- /dev/null +++ b/lib/migrate.php @@ -0,0 +1,291 @@ +<?php + +// need access to ElggDiskFilestore::make_file_matrix(), which is protected. +// this is a PITA. +class tempFilestore extends ElggDiskFilestore { + public function make_file_matrix($filename) { + return parent::make_file_matrix($filename); + } + +} +$filestore = new tempFilestore(); + + + +/** + * Migrates all pics from files to tidypics. + * + */ +function tidypics_migrate_pics() { + $limit = 100; + $r = true; + + // migrate + // @todo: should this return false since there was no error? + if (!$users = tidypics_get_user_guids_with_pics_in_files(0, $limit)) { + return $r; + } + + //echo "Grabbed " . count($users) . " users\n"; + while (is_array($users) AND count($users) > 0) { + foreach ($users as $user_guid) { + // reset the query cache. + $DB_QUERY_CACHE = array(); + if (!$user = get_entity($user_guid)) { + continue; + } + + $r = tidypics_migrate_user_pics($user); + } + + //echo "Trying to grab $limit more users...\n"; + $offset = $offset + $limit; + $users = tidypics_get_user_guids_with_pics_in_files($offset, $limit); + } + + return $r; +} + + +/** + * Migrates all pictures owned by a user regardless of + * if they're group or user files. + * + * @param ElggUser $user User to migrate. + * @return bool on success + */ +function tidypics_migrate_user_pics(ElggUser $user) { + global $CONFIG, $filestore; + + // update all entity subtypes in a single go at the end. + $updated_guids = array(); + + if (!$pics = tidypics_get_user_pics_from_files($user_guid) OR count($pics) < 1) { + return false; + } + + //echo "{$user->name} ({$user->getGUID()}) has " . count($pics) . " pics.\n"; + + // get an album to migrate into if it already exists. + // will create later on if it doesn't. + $user_album_entities = get_entities_from_metadata('migrated_from_files', true, 'object', 'album', $user->getGUID(), 1); + $user_album_guid = isset($album_entities[0]) ? $album_entities[0]->getGUID() : false; + + // a list of albums to randomly select a cover for on newly created albums. + $new_album_guids = array(); + + foreach ($pics as $pic) { + // check that it's not already in tidy pics + if (false !== strpos($pic->filename, 'image/')) { + //echo "{$pic->filename} ({$pic->getGUID()}) looks like it's already in tidy pics. Ignoring.\n"; + continue; + } + + // blank some vars + $group_pic = $group_album_guid = $group_guid = false; + + // see if we're doing a group file migration. + if ($pic->container_guid != $user->getGUID() + AND $group = get_entity($pic->container_guid) + AND $group instanceof ElggGroup + ) { + //echo "{$pic->getGUID()} is in a group!\n"; + $group_pic = true; + $group_guid = $group->getGUID(); + + // yes, this is how you get entities by container_guid. + // yes, it's wrong, wrong, wrong for this function to work this way. + $group_album_entities = get_entities('object', 'album', $group_guid); + + // get_entities_from_metadata doesn't support container_guid (or owner_guid meaning container_guid) + // do it the hard way. + if (is_array($group_album_entities)) { + foreach ($group_album_entities as $group_album) { + if ($group_album->migrated_from_files == true) { + $group_album_guid = $group_album->getGUID(); + break; + } + } + } + $album_guid = $group_album_guid; + $group_album_guids[] = $group_album_guid; + } else { + $album_guid = $user_album_guid; + } + + //echo "album_guid is $album_guid and group_pic is: $group_pic\n"; + + // create an album if we need to. + if (!$album_guid) { + //echo "Creating new album...\n"; + $album = new ElggObject(); + $album->subtype = 'album'; + $album->new_album = TP_NEW_ALBUM; + + if ($group_pic) { + $album->container_guid = $group_guid; + $album->owner_guid = $group->owner_guid; + $album->access_id = $group->group_acl; + $album->title = $group->name; + } else { + $album->container_guid = $user_guid; + $album->owner_guid = $user->getGUID(); + $album->access_id = ACCESS_DEFAULT; + $album->title = $user->name; + } + + if (!$album->save()) { + //echo "Couldn't migrate pics for {$user->name} ($user_guid)!\n"; + return false; + } + $album->migrated_from_files = true; + $album_guid = $album->getGUID(); + $new_album_guids[] = $album_guid; + + // save the album guid as the users + if (!$group_pic) { + $user_album_guid = $album_guid; + } + } + + if (!tidypics_migrate_pic_from_files($pic, $album_guid)) { + //echo "{$pic->filename} ({$pic->getGUID()}) Couldn't be migrated. Ignoring.\n"; + continue; + } + } + + // randomly pic an image to be the cover for the user gallery + //$album->cover = $pic_guids[array_rand($pic_guids)]; + foreach ($new_album_guids as $guid) { + tidypics_set_random_cover_pic($guid); + } + + return true; +} + + +/** + * Randomly pics an image from an album to be the cover. + * @return bool on success + */ +function tidypics_set_random_cover_pic($album_guid) { + global $CONFIG; + + if ($album = get_entity($album_guid) AND $album instanceof TidypicsAlbum) { + $q = "SELECT guid FROM {$CONFIG->dbprefix}entities WHERE container_guid = $album_guid ORDER BY RAND() limit 1"; + $pic = get_data($q); + + return $album->cover = $pic[0]->guid; + } + + return false; +} + +/** + * Migrates a single pic from the file repo. + * @return bool on succes. + */ +function tidypics_migrate_pic_from_files($pic, $album_guid) { + global $CONFIG, $filestore; + + // get the subtype id. + $image_subtype_id = get_subtype_id('object', 'image'); + + // hold which metadata on the files need to be changes + // also holds the images we need to move + $file_md_fields = array('filename', 'thumbnail', 'smallthumb', 'largethumb'); + + if (!$user = get_entity($pic->owner_guid)) { + return false; + } + + // figure out where to move the files. + $matrix = $filestore->make_file_matrix($user->username); + $user_fs_path = $CONFIG->dataroot . $matrix; + $album_fs_path = $CONFIG->dataroot . $matrix . "image/$album_guid/"; + if (!is_dir($album_fs_path)) { + if (!mkdir($album_fs_path, 0700, true)) { + return false; + } + } + + // change all the 'file/'s to 'image/'s in certain metadata + // these are also the files we need to move. + foreach ($file_md_fields as $md_name) { + // $pic->$md_name = str_replace('file/', 'image/', $pic->$md_name); + $old_file = $pic->$md_name; + $new_file = str_replace('file/', "image/$album_guid", $old_file); + + if (!($old_fp = fopen($user_fs_path . $old_file, 'r') + AND $new_fp = fopen($user_fs_path . $new_file, 'w'))) { + //echo "Could not move {$user_fs_path}{$old_file} to {$user_fs_path}{$new_file}\n"; + continue; + } + + while (!feof($old_fp)) { + if (!fputs($new_fp, fread($old_fp, 8192))) { + //echo "Could not move {$user_fs_path}{$old_file} to {$user_fs_path}{$new_file} (Error writing.)\n"; + break; + } + } + + $pic->$md_name = $new_file; + } + // update container. + // this doesn't work...? + //$pic->container_guid = $album_guid; + + // delete old one. + unlink($user_fs_path . $old_file); + + $q = "UPDATE {$CONFIG->dbprefix}entities SET subtype = $image_subtype_id, container_guid = $album_guid WHERE guid = {$pic->getGUID()}"; + //echo "Finished moving {$user_fs_path}{$old_file} to {$user_fs_path}{$new_file}\n"; + + return update_data($q); +} + + +/** + * Grabs all user IDs with images in the files repo. + * return mixed. False on fail, array of GUIDs on success. + */ +function tidypics_get_user_guids_with_pics_in_files($offset, $limit) { + global $CONFIG; + + //$simpletype_ms_id = add_metastring('simple_type'); + //$image_ms_id = add_metastring('image'); + + $q = "SELECT DISTINCT e.owner_guid + FROM + {$CONFIG->dbprefix}entities as e, + {$CONFIG->dbprefix}entity_subtypes as st + + WHERE st.subtype = 'file' + AND e.subtype = st.id + LIMIT $offset, $limit"; + + if (!$data = get_data($q)) { + return false; + } + + // return an array of IDs + $r = array(); + foreach ($data as $row) { + $r[] = $row->owner_guid; + } + + return $r; +} + +/** + * Gets a list of images for a single user. + * @return array of GUIDs, false on fail. + */ +function tidypics_get_user_pics_from_files($user_guid) { + if (!$user = get_entity($user_guid) AND $user instanceof ElggUser) { + return false; + } + + // @todo Might have to cycle this through with standard while + foreach. + return get_entities_from_metadata('simpletype', 'image', 'object', 'file', $user_guid, 5000); +} |