function node_update_7012

Switches body fields to untranslatable while upgrading from D6 and makes them language neutral.

Related topics

File

modules/node/node.install, line 886

Code

function node_update_7012() {
    // If we are upgrading from D6, then body fields should be set back to
    // untranslatable, as D6 did not know about the idea of translating fields,
    // but only nodes. If a D7 > D7 update is running we need to skip this update,
    // as it is a valid use case to have translatable body fields in this context.
    if (variable_get('update_d6', FALSE)) {
        // Make node bodies untranslatable: field_update_field() cannot be used
        // throughout the upgrade process and we do not have an update counterpart
        // for _update_7000_field_create_field(). Hence we are forced to update the
        // 'field_config' table directly. This is a safe operation since it is
        // being performed while upgrading from D6. Perfoming the same operation
        // during a D7 update is highly discouraged.
        db_update('field_config')->fields(array(
            'translatable' => 0,
        ))
            ->condition('field_name', 'body')
            ->execute();
        // Switch field languages to LANGUAGE_NONE, since initially they were
        // assigned the node language.
        foreach (array(
            'field_data_body',
            'field_revision_body',
        ) as $table) {
            db_update($table)->fields(array(
                'language' => LANGUAGE_NONE,
            ))
                ->execute();
        }
        node_type_cache_reset();
    }
}