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macro_rules! sqlite_async_prepared_impl {
($executor:path, $row:ty, $value:ty) => {
impl<'a, Marker, DecodedRow> PreparedStatement<'a, Marker, DecodedRow> {
/// Binds `params` and runs the statement, returning the number of rows it
/// changed.
///
/// # Errors
///
/// Returns [`DrizzleError::ParameterError`] when `params` do not match the
/// statement's placeholders (missing, duplicated, or extra),
/// or the database error when the statement fails.
///
/// [`DrizzleError::ParameterError`]: drizzle_core::error::DrizzleError::ParameterError
///
/// # Panics
///
/// In debug builds, panics when `N` differs from the number of placeholders.
pub async fn execute<const N: usize>(
&self,
conn: &impl $executor,
params: [drizzle_core::param::ParamBind<
'a,
drizzle_sqlite::values::SQLiteValue<'a>,
>; N],
) -> drizzle_core::error::Result<u64> {
debug_assert_eq!(N, self.inner.external_param_count(), "parameter count mismatch: expected {} params but got {}", self.inner.external_param_count(), N);
let (sql_str, params) = self.inner.bind(params)?;
let mut driver_params = Vec::with_capacity(self.inner.params.len());
driver_params.extend(params.map(Into::into));
conn.exec(sql_str, driver_params).await
}
/// Binds `params`, runs the query, and decodes every row into `T`.
///
/// # Errors
///
/// Returns [`DrizzleError::ParameterError`] when `params` do not match the
/// statement's placeholders (missing, duplicated, or extra),
/// the database error when the query fails, or a decode error when a row
/// does not fit `T`.
///
/// [`DrizzleError::ParameterError`]: drizzle_core::error::DrizzleError::ParameterError
///
/// # Panics
///
/// In debug builds, panics when `N` differs from the number of placeholders.
pub async fn all<T, const N: usize>(
&self,
conn: &impl $executor,
params: [drizzle_core::param::ParamBind<
'a,
drizzle_sqlite::values::SQLiteValue<'a>,
>; N],
) -> drizzle_core::error::Result<Vec<T>>
where
for<'r> Marker: drizzle_core::row::DecodeSelectedRef<&'r $row, T>,
{
debug_assert_eq!(N, self.inner.external_param_count(), "parameter count mismatch: expected {} params but got {}", self.inner.external_param_count(), N);
let (sql_str, params) = self.inner.bind(params)?;
let mut driver_params = Vec::with_capacity(self.inner.params.len());
driver_params.extend(params.map(Into::into));
let mut rows = conn.fetch(sql_str, driver_params).await?;
let mut results = Vec::new();
while let Some(row) = rows.next().await? {
let converted = <Marker as drizzle_core::row::DecodeSelectedRef<
&$row,
T,
>>::decode(&row)?;
results.push(converted);
}
Ok(results)
}
/// Binds `params`, runs the query, and decodes its first row into `T`.
///
/// # Errors
///
/// Returns [`DrizzleError::ParameterError`] when `params` do not match the
/// statement's placeholders (missing, duplicated, or extra),
/// [`DrizzleError::NotFound`] when no row matches, the database error when
/// the query fails, or a decode error when the row does not fit `T`.
///
/// [`DrizzleError::NotFound`]: drizzle_core::error::DrizzleError::NotFound
///
/// [`DrizzleError::ParameterError`]: drizzle_core::error::DrizzleError::ParameterError
///
/// # Panics
///
/// In debug builds, panics when `N` differs from the number of placeholders.
pub async fn get<T, const N: usize>(
&self,
conn: &impl $executor,
params: [drizzle_core::param::ParamBind<
'a,
drizzle_sqlite::values::SQLiteValue<'a>,
>; N],
) -> drizzle_core::error::Result<T>
where
for<'r> Marker: drizzle_core::row::DecodeSelectedRef<&'r $row, T>,
{
debug_assert_eq!(N, self.inner.external_param_count(), "parameter count mismatch: expected {} params but got {}", self.inner.external_param_count(), N);
let (sql_str, params) = self.inner.bind(params)?;
let mut driver_params = Vec::with_capacity(self.inner.params.len());
driver_params.extend(params.map(Into::into));
let mut rows = conn.fetch(sql_str, driver_params).await?;
let decoded = if let Some(row) = rows.next().await? {
<Marker as drizzle_core::row::DecodeSelectedRef<&$row, T>>::decode(&row)
} else {
Err(drizzle_core::error::DrizzleError::NotFound)
};
while rows.next().await?.is_some() {}
decoded
}
}
impl<Marker, DecodedRow> OwnedPreparedStatement<Marker, DecodedRow> {
/// Binds `params` and runs the statement, returning the number of rows it
/// changed.
///
/// # Errors
///
/// Returns [`DrizzleError::ParameterError`] when `params` do not match the
/// statement's placeholders (missing, duplicated, or extra),
/// or the database error when the statement fails.
///
/// [`DrizzleError::ParameterError`]: drizzle_core::error::DrizzleError::ParameterError
///
/// # Panics
///
/// In debug builds, panics when `N` differs from the number of placeholders.
pub async fn execute<'a, const N: usize>(
&self,
conn: &impl $executor,
params: [drizzle_core::param::ParamBind<
'a,
drizzle_sqlite::values::SQLiteValue<'a>,
>; N],
) -> drizzle_core::error::Result<u64> {
debug_assert_eq!(N, self.inner.external_param_count(), "parameter count mismatch: expected {} params but got {}", self.inner.external_param_count(), N);
let (sql_str, params) = self.inner.bind(params)?;
let mut driver_params = Vec::with_capacity(self.inner.params.len());
driver_params.extend(params.map(Into::into));
conn.exec(sql_str, driver_params).await
}
/// Binds `params`, runs the query, and decodes every row into `T`.
///
/// # Errors
///
/// Returns [`DrizzleError::ParameterError`] when `params` do not match the
/// statement's placeholders (missing, duplicated, or extra),
/// the database error when the query fails, or a decode error when a row
/// does not fit `T`.
///
/// [`DrizzleError::ParameterError`]: drizzle_core::error::DrizzleError::ParameterError
///
/// # Panics
///
/// In debug builds, panics when `N` differs from the number of placeholders.
pub async fn all<'a, T, const N: usize>(
&self,
conn: &impl $executor,
params: [drizzle_core::param::ParamBind<
'a,
drizzle_sqlite::values::SQLiteValue<'a>,
>; N],
) -> drizzle_core::error::Result<Vec<T>>
where
for<'r> Marker: drizzle_core::row::DecodeSelectedRef<&'r $row, T>,
{
debug_assert_eq!(N, self.inner.external_param_count(), "parameter count mismatch: expected {} params but got {}", self.inner.external_param_count(), N);
let (sql_str, params) = self.inner.bind(params)?;
let mut driver_params = Vec::with_capacity(self.inner.params.len());
driver_params.extend(params.map(Into::into));
let mut rows = conn.fetch(sql_str, driver_params).await?;
let mut results = Vec::new();
while let Some(row) = rows.next().await? {
let converted = <Marker as drizzle_core::row::DecodeSelectedRef<
&$row,
T,
>>::decode(&row)?;
results.push(converted);
}
Ok(results)
}
/// Binds `params`, runs the query, and decodes its first row into `T`.
///
/// # Errors
///
/// Returns [`DrizzleError::ParameterError`] when `params` do not match the
/// statement's placeholders (missing, duplicated, or extra),
/// [`DrizzleError::NotFound`] when no row matches, the database error when
/// the query fails, or a decode error when the row does not fit `T`.
///
/// [`DrizzleError::NotFound`]: drizzle_core::error::DrizzleError::NotFound
///
/// [`DrizzleError::ParameterError`]: drizzle_core::error::DrizzleError::ParameterError
///
/// # Panics
///
/// In debug builds, panics when `N` differs from the number of placeholders.
pub async fn get<'a, T, const N: usize>(
&self,
conn: &impl $executor,
params: [drizzle_core::param::ParamBind<
'a,
drizzle_sqlite::values::SQLiteValue<'a>,
>; N],
) -> drizzle_core::error::Result<T>
where
for<'r> Marker: drizzle_core::row::DecodeSelectedRef<&'r $row, T>,
{
debug_assert_eq!(N, self.inner.external_param_count(), "parameter count mismatch: expected {} params but got {}", self.inner.external_param_count(), N);
let (sql_str, params) = self.inner.bind(params)?;
let mut driver_params = Vec::with_capacity(self.inner.params.len());
driver_params.extend(params.map(Into::into));
let mut rows = conn.fetch(sql_str, driver_params).await?;
let decoded = if let Some(row) = rows.next().await? {
<Marker as drizzle_core::row::DecodeSelectedRef<&$row, T>>::decode(&row)
} else {
Err(drizzle_core::error::DrizzleError::NotFound)
};
while rows.next().await?.is_some() {}
decoded
}
}
};
}
pub(crate) use sqlite_async_prepared_impl;