Trait SqlConnExt 

pub trait SqlConnExt: SqlConn {
    // Provided methods
    fn query_rows<T>(
        &self,
        sql: &str,
        params: &[SqlValue],
        f: impl FnMut(&dyn SqlRow) -> Result<T, SqlError>,
    ) -> Result<Vec<T>, SqlError> { ... }
    fn query_opt<T>(
        &self,
        sql: &str,
        params: &[SqlValue],
        f: impl FnMut(&dyn SqlRow) -> Result<T, SqlError>,
    ) -> Result<Option<T>, SqlError> { ... }
}

Convenience helpers over any SqlConn.

Provided Methods

fn query_rows<T>( &self, sql: &str, params: &[SqlValue], f: impl FnMut(&dyn SqlRow) -> Result<T, SqlError>, ) -> Result<Vec<T>, SqlError>

Collect every row (f maps one row).

fn query_opt<T>( &self, sql: &str, params: &[SqlValue], f: impl FnMut(&dyn SqlRow) -> Result<T, SqlError>, ) -> Result<Option<T>, SqlError>

The first row, if any.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<C: SqlConn + ?Sized> SqlConnExt for C