function ph_migrate_import($migration, $update, $idlist, $skip, $limit, $progress)
{
ph_migrate_statistics_init();
ini_set('memory_limit', '-1');
do_action('ph_migrate_register_field_handlers');
$migrations = ph_migrate_migrations();
$migration = $migrations[$migration];
//step one: fetch the mapping table as a backing store for all migration decisions
global $wpdb;
$mapping = $wpdb->get_results('select source_id,dest_id,needs_import from ' . $wpdb->prefix . 'ph_migrate_map_' . $migration->name);
//step two: fetch all source ids
$ids = $migration->source->getIDs();
//step three: apply the idlist as a filter to all source ids
if (is_array($idlist) && count($idlist) > 0) {
$new_ids = array();
foreach ($ids as $id) {
if (in_array($id, $idlist)) {
$new_ids[] = $id;
}
}
$ids = $new_ids;
}
//step four: apply the skip and limit as a filter to all source ids
if (0 != $skip) {
echo "First " . $skip . " items of " . count($ids) . " were skipped!\n";
$ids = array_slice($ids, $skip);
}
if (0 != $limit) {
$ids = array_splice($ids, 0, $limit);
}
ph_migrate_statistics_increment("Sources to be migrated", count($ids));
//step five: for each source id check wether migration is neccessary:
// * using update
// * checking wether it's already migrated
// * calling prepareRow (returning NULL cancels this item)
// if migration should be done:
// * load existing entity if available
// * map fields over
// * save entity
$nImported = 0;
$nIgnored = 0;
foreach ($ids as $source_id) {
ph_migrate_statistics_increment("Sources analyzed", 1);
echo "ID: " . $source_id . "\n";
ini_set('memory_limit', '-1');
$entry = null;
foreach ($mapping as $map_entry) {
if ($map_entry->source_id == $source_id) {
$entry = $map_entry;
break;
}
}
if ($entry == null || true == $entry->needs_import || $entry->dest_id == null || $entry->dest_id != null && $update) {
if ($entry == null) {
$entry = new Stdclass();
$entry->source_id = $source_id;
$entry->dest_id = null;
$entry->needs_import = true;
$entry->is_new = true;
$mapping[] = $entry;
}
$data = $migration->source->getItemByID($source_id);
$data = $migration->prepareRow($data);
if ($data != null) {
$destination = null;
if ($entry->dest_id != null) {
echo "fetching destination..." . $entry->dest_id . "\n";
$destination = $migration->destination->getItemByID($entry->dest_id);
} else {
echo "creating destination...\n";
$destination = $migration->destination->createItem();
}
if ($destination == null) {
echo "unable to get destination!\n";
if ($migration->destination == null) {
echo "migration destination is null!\n";
}
} else {
$migration->map($data, $destination);
$dest_id = $migration->destination->save($destination);
// if $dest_id wp_error -> abfangen
$entry->dest_id = $dest_id;
$entry->needs_import = false;
if (isset($entry->is_new)) {
$wpdb->insert($wpdb->prefix . 'ph_migrate_map_' . $migration->name, array('source_id' => $entry->source_id, 'dest_id' => $entry->dest_id, 'needs_import' => $entry->needs_import));
} else {
$wpdb->update($wpdb->prefix . 'ph_migrate_map_' . $migration->name, array('source_id' => $entry->source_id, 'dest_id' => $entry->dest_id, 'needs_import' => $entry->needs_import), array('source_id' => $entry->source_id));
}
$nImported++;
ph_migrate_statistics_increment("Sources imported or updated", 1);
}
} else {
$nIgnored++;
ph_migrate_statistics_increment("Sources ignored", 1);
}
} else {
$nIgnored++;
ph_migrate_statistics_increment("Sources ignored", 1);
}
if (0 == ($nImported + $nIgnored) % $progress && $progress != -1) {
echo esc_html("Migration progress: {$nImported} imported, {$nIgnored} skipped, " . (count($ids) - ($nImported + $nIgnored)) . " remaining.\n");
}
}
//step six: PROFIT
echo esc_html("Migration result: {$nImported} imported, {$nIgnored} skipped.\n");
}
}
if (0 === strpos($argv[$i], '--skip=')) {
$skip = intval(substr($argv[$i], strlen('--skip=')));
}
if (0 === strpos($argv[$i], '--progress=')) {
$progress = intval(substr($argv[$i], strlen('--progress=')));
}
}
ph_migrate_import($migration, $update, $idlist, $skip, $limit, $progress);
}
if ('rollback' == $argv[1] && count($argv) >= 3) {
$migration = $argv[2];
$progress = -1;
$idlist = array();
for ($i = 3; $i < count($argv); $i++) {
if (0 === strpos($argv[$i], '--progress=')) {
$progress = intval(substr($argv[$i], strlen('--progress=')));
}
if (0 === strpos($argv[$i], '--idList=')) {
$tmp = substr($argv[$i], strlen('--idList='));
$idlist = explode(',', $tmp);
}
}
ph_migrate_rollback($migration, $progress, $idlist);
}
if ('test' == $argv[1]) {
ph_migrate_statistics_init();
ph_migrate_statistics_increment('Test', 1);
ph_migrate_statistics_increment('Test', 2);
ph_migrate_statistics_increment("Test with apostroph: '", 1);
}
