Enum diesel::result::ConnectionError

pub enum ConnectionError {
    InvalidCString(NulError),
    BadConnection(String),
    InvalidConnectionUrl(String),
    CouldntSetupConfiguration(Error),
    // some variants omitted
}

Errors which can occur during Connection::establish

Variants

InvalidCString(NulError)

The connection URL contained a NUL byte.

Tuple Fields of InvalidCString

0: NulError

BadConnection(String)

The database returned an error.

Tuple Fields of BadConnection

0: String

InvalidConnectionUrl(String)

The connection URL could not be parsed.

Tuple Fields of InvalidConnectionUrl

0: String

CouldntSetupConfiguration(Error)

Diesel could not configure the database connection.

Diesel may try to automatically set session specific configuration values, such as UTF8 encoding, or enabling the || operator on MySQL. This variant is returned if an error occurred executing the query to set those options. Diesel will never affect global configuration.

Tuple Fields of CouldntSetupConfiguration

0: Error

Trait Implementations

impl Debug for ConnectionError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ConnectionError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for ConnectionError

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn StdError>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

impl From<NulError> for ConnectionError

fn from(e: NulError) -> Self

Performs the conversion.

impl PartialEq<ConnectionError> for ConnectionError

fn eq(&self, other: &ConnectionError) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &ConnectionError) -> bool

This method tests for !=.

impl StructuralPartialEq for ConnectionError