Enum Error 

pub enum Error {
    Sqlx(Error),
    UnresolvedPlaceholder(UnresolvedPlaceholder),
    NothingToSet(NothingToSet),
    NothingToInsert(NothingToInsert),
    FeatureNotEnabled(&'static str),
}

Errors from executing a qbrs query against Postgres via sqlx. An enum rather than a bare sqlx::Error so a qbrs-level misuse is distinguishable from a driver/database error without string-matching a message.

Variants

Sqlx(Error)

A real error from Postgres or the sqlx driver: a failed connection, constraint violation, decode failure, etc.

UnresolvedPlaceholder(UnresolvedPlaceholder)

A prepare!{} placeholder reached execution unresolved: either Prepared::resolve() found no matching field in Params, or the query was executed directly instead of through .prepare().

NothingToSet(NothingToSet)

An *Update describing no assignment, or an insert of no rows — caught where the request-shaped data is read (Assignments::from_row, .values_all), never at a statement. Here so a handler returning this crate’s Result can ? on that as readily as on a query.

NothingToInsert(NothingToInsert)

FeatureNotEnabled(&'static str)

A column type is enabled on qbrs but not on qbrs-sqlx, so the value renders and has nothing to bind it. The two crates carry the same feature names for exactly this reason — turn it on in both.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<NothingToInsert> for Error

fn from(source: NothingToInsert) -> Self

Converts to this type from the input type.

impl From<NothingToSet> for Error

fn from(source: NothingToSet) -> Self

Converts to this type from the input type.

impl From<UnresolvedPlaceholder> for Error

fn from(source: UnresolvedPlaceholder) -> Self

Converts to this type from the input type.