AppGini 5.98

In hooks/tablename.php or hooks/__global.php, add this in the global scope (outside any function definitions):

// Change tablename and fieldname to actual table and field names
define('tablename.fieldname.MinYear', 2010);
define('tablename.fieldname.MaxYear', 2030);

// Dynamic dates also works:
define('tablename.fieldname.MinYear', date('Y') - 1); // = last year
define('tablename.fieldname.MaxYear', date('Y') + 2); // = 2 years ahead