function farm_livestock_update_7001 in farmOS 7

Migrate Animal Parents field to plain Parents field (from farm_asset_children).

File

modules/farm/farm_livestock/farm_livestock.install, line 65

Farm livestock install file.

Code

function farm_livestock_update_7001(&$sandbox) {

  // Revert this module's field_instance Features component.
  features_revert(array(
    'farm_livestock' => array(
      'field_instance',
    ),
  ));

  // If the new description field database tables exist...
  if (db_table_exists('field_data_field_farm_parent') && db_table_exists('field_revision_field_farm_parent')) {

    // Copy all references from the old database tables to the new ones.
    db_query('INSERT INTO {field_data_field_farm_parent} SELECT * FROM {field_data_field_farm_animal_parents}');
    db_query('INSERT INTO {field_revision_field_farm_parent} SELECT * FROM {field_revision_field_farm_animal_parents}');

    // Delete the old field.
    $field = field_info_instance('farm_asset', 'field_farm_animal_parents', 'animal');
    field_delete_instance($field);
  }
}