jfederico / moodle-mod_bigbluebuttonbn

 * @param   string    $tablename

 * @param   string    $fieldname

 */

function xmldb_bigbluebuttonbn_drop_field($dbman, $tablename, $fieldname) {

    $table = new xmldb_table($tablename);

    $field = new xmldb_field($fieldname);

    if ($dbman->field_exists($table, $field)) {

        $dbman->drop_field($table, $field, true, true);

    }

}

/**

 * Generic helper function for renaming a field in a table.

 * @param   string    $fieldnameold

 * @param   string    $fieldnamenew

 */

function xmldb_bigbluebuttonbn_rename_field($dbman, $tablename, $fieldnameold, $fieldnamenew) {

    $table = new xmldb_table($tablename);

    $field = new xmldb_field($fieldnameold);

    if ($dbman->field_exists($table, $field)) {

        $dbman->rename_field($table, $field, $fieldnamenew, true, true);

    }

}

/**

 * Generic helper function for renaming a table.