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.

BadConnection(String)

The database returned an error.

InvalidConnectionUrl(String)

The connection URL could not be parsed.

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.

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

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

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

pub 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