createTable method
Implementation
String createTable(String tableName) {
String query = " CREATE TABLE IF NOT EXISTS $tableName ( ";
_columns.forEach((k, v) {
if (v.runtimeType.toString() == "SchemaUtils") {
query += " ${v.get()} ";
} else {
query += " $v ";
}
});
return ' ${query.limitedTrim()} ); ';
}