function migrate()
{
if ($this->import_throttled_import) {
$result = '';
$this->import_skip_first = $this->state->skip_first;
$this->import_field_separator = $this->state->field_separator;
$params = new DSCParameter();
$params->setValue('skip_first', $this->import_skip_first);
$params->setValue('num_records', $this->import_num_records);
$params->setValue('num_fields', $this->import_fields_num);
$params->setValue('clear_fields', $this->import_clear_fields);
$params->setValue('chunk_size', $this->import_chunk_size);
$params->setValue('preserve_header', $this->import_preserve_header);
$params->setValue('offset', $this->import_offset);
$params->setValue('begin_import', $this->import_begin_import);
$params->setValue('throttled_import', true);
$params->setValue('rec_deliminer', $this->import_rec_deliminer);
$params->setValue('field_deliminer', $this->import_field_separator);
while (true) {
$data = TiendaCSV::fromFileToArray($this->source_import, $this->import_fields, $this->import_fields_num, $this->parse_method, $params);
$c = count($data[0]);
$this->set('data', $data[0]);
$result .= $this->migrate_data();
if ($c != $this->import_num_records) {
break;
}
$params->setValue('offset', $data[1]);
$params->setValue('begin_import', false);
}
return $result;
} else {
return $this->migrate_data();
}
}
