Enum odbc_api::handles::SqlResult

pub enum SqlResult<T> {
    Success(T),
    SuccessWithInfo(T),
    Error {
        function: &'static str,
    },
}

Result of an ODBC function call. Variants hold the same meaning as the constants associated with SqlReturn. This type may hold results, but it is still the responsibility of the user to fetch and handle the diagnostics in case of an Error.

Variants

Success(T)

The function has been executed successfully.

Tuple Fields of Success

0: T

SuccessWithInfo(T)

The function has been executed successfully. There have been warnings.

Tuple Fields of SuccessWithInfo

0: T

Error

Function returned error state. Check diagnostics.

Fields of Error

function: &'static str

Name of the ODBC Api call which caused the error. This might help interpreting associatedif the error ODBC diagnostics if the error is bubbeld all the way up to the end users output, but the context is lost.

Implementations

impl<T> SqlResult<T>

pub fn into_result(self, handle: &dyn AsHandle) -> Result<T, Error>

impl SqlResult<()>

pub fn on_success<F, T>(self, f: F) -> SqlResult<T> where
    F: FnOnce() -> T, 

Append a return value a successful to Result

impl<T> SqlResult<T>

pub fn log_diagnostics(&self, handle: &dyn AsHandle)

Logs diagonstics of handle if variant is either Error or SuccessWithInfo.

pub fn is_err(&self) -> bool

True if variant is SqlResult::Error.

pub fn map<U, F>(self, f: F) -> SqlResult<U> where
    F: FnOnce(T) -> U, 

Applies f to any value wrapped in Success or SuccessWithInfo.

pub fn unwrap(self) -> T

Trait Implementations

impl<T: Debug> Debug for SqlResult<T>

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

Formats the value using the given formatter.