protected function DrupalVersion5::getFieldTypeColumns in Drupal-to-Drupal data migration 7.2

Detect what database columns are available for the given field.

Parameters

$field_info: Info describing the incoming field. We specifically are looking at the field_name, type_name, and db_storage values.

Return value

array List of column suffixes relevant to the field ('value', 'fid', etc.).

1 call to DrupalVersion5::getFieldTypeColumns()

DrupalVersion5::populateSourceFieldInfo in d5/d5.inc

Retrieve info on all fields attached to the given entity type and bundle. Populates $this->sourceFieldInfo.

File

d5/d5.inc, line 149

Implementation of DrupalVersion for Drupal 5 sources.

Class

DrupalVersion5

Drupal 5 implementations of functions shared among multiple types of objects.

Code

protected function getFieldTypeColumns($field_info) {
  $field_name = $field_info->field_name;
  if ($field_info->db_storage) {
    $table_name = 'content_type_' . $field_info->type_name;
  }
  else {
    $table_name = 'content_' . $field_name;
  }
  $row = Database::getConnection('default', $this->arguments['source_connection'])
    ->select($table_name, 't')
    ->fields('t')
    ->range(0, 1)
    ->execute()
    ->fetchObject();
  $type_columns = array();
  if ($row) {
    foreach ($row as $column_name => $column_value) {
      if (!strncmp($field_name, $column_name, strlen($field_name))) {
        $type_columns[] = substr($column_name, strlen($field_name) + 1);
      }
    }
  }
  return $type_columns;
}