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Version: 0.10.x

Error Handling

All runtime errors in SeaORM is represented by DbErr.

Parsing database specific errors

You can retrieve the database specific error code from any of DbErr::Conn, DbErr::Exec or DbErr::Query.

let mud_cake = cake::ActiveModel {
id: Set(1),
name: Set("Moldy Cake".to_owned()),
price: Set(dec!(10.25)),
gluten_free: Set(false),
serial: Set(Uuid::new_v4()),
bakery_id: Set(None),

// Insert a new cake with its primary key (`id` column) set to 1.
let cake ="could not insert cake");

// Insert the same row again and it failed
// because primary key of each row should be unique.
let error: DbErr = cake
.expect_err("inserting should fail due to duplicate primary key");

match error {
DbErr::Exec(RuntimeErr::SqlxError(error)) => match error {
Error::Database(e) => {
// We check the error code thrown by the database (MySQL in this case),
// `23000` means `ER_DUP_KEY`: we have a duplicate key in the table.
assert_eq!(e.code().unwrap(), "23000");
_ => panic!("Unexpected sqlx-error kind"),
_ => panic!("Unexpected Error kind"),