DbException class

Typed exceptions thrown by every dartapi_db driver.

All database errors surface as a DbException subclass, so application code can map them to HTTP responses without parsing driver messages:

try {
  await db.insert('users', {'email': dto.email, ...});
} on UniqueViolationException {
  throw const ApiException(409, 'Email already registered');
} on DbConnectionException {
  throw const ApiException(503, 'Database unavailable');
}

The original driver exception is preserved in cause for logging and debugging.

Implemented types

• Exception

Implementers

• DbConnectionException
• ForeignKeyViolationException
• QueryException
• UniqueViolationException

Constructors

DbException(String message, {Object? cause})

const

Properties

cause → Object?

The underlying driver exception, when available.

final

hashCode → int

The hash code for this object.

no setter, inherited

message → String

Human-readable description of what failed.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited