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use crate::any::connection::AnyConnectionKind;
use crate::any::{Any, AnyColumn, AnyConnection, AnyDone, AnyRow, AnyStatement, AnyTypeInfo};
use crate::database::Database;
use crate::describe::Describe;
use crate::error::Error;
use crate::executor::{Execute, Executor};
use either::Either;
use futures_core::future::BoxFuture;
use futures_core::stream::BoxStream;
use futures_util::{StreamExt, TryStreamExt};
impl<'c> Executor<'c> for &'c mut AnyConnection {
type Database = Any;
fn fetch_many<'e, 'q: 'e, E: 'q>(
self,
mut query: E,
) -> BoxStream<'e, Result<Either<AnyDone, AnyRow>, Error>>
where
'c: 'e,
E: Execute<'q, Self::Database>,
{
let arguments = query.take_arguments();
let query = query.sql();
match &mut self.0 {
#[cfg(feature = "postgres")]
AnyConnectionKind::Postgres(conn) => conn
.fetch_many((query, arguments.map(Into::into)))
.map_ok(|v| v.map_right(Into::into).map_left(Into::into))
.boxed(),
#[cfg(feature = "mysql")]
AnyConnectionKind::MySql(conn) => conn
.fetch_many((query, arguments.map(Into::into)))
.map_ok(|v| v.map_right(Into::into).map_left(Into::into))
.boxed(),
#[cfg(feature = "sqlite")]
AnyConnectionKind::Sqlite(conn) => conn
.fetch_many((query, arguments.map(Into::into)))
.map_ok(|v| v.map_right(Into::into).map_left(Into::into))
.boxed(),
#[cfg(feature = "mssql")]
AnyConnectionKind::Mssql(conn) => conn
.fetch_many((query, arguments.map(Into::into)))
.map_ok(|v| v.map_right(Into::into).map_left(Into::into))
.boxed(),
}
}
fn fetch_optional<'e, 'q: 'e, E: 'q>(
self,
mut query: E,
) -> BoxFuture<'e, Result<Option<AnyRow>, Error>>
where
'c: 'e,
E: Execute<'q, Self::Database>,
{
let arguments = query.take_arguments();
let query = query.sql();
Box::pin(async move {
Ok(match &mut self.0 {
#[cfg(feature = "postgres")]
AnyConnectionKind::Postgres(conn) => conn
.fetch_optional((query, arguments.map(Into::into)))
.await?
.map(Into::into),
#[cfg(feature = "mysql")]
AnyConnectionKind::MySql(conn) => conn
.fetch_optional((query, arguments.map(Into::into)))
.await?
.map(Into::into),
#[cfg(feature = "sqlite")]
AnyConnectionKind::Sqlite(conn) => conn
.fetch_optional((query, arguments.map(Into::into)))
.await?
.map(Into::into),
#[cfg(feature = "mssql")]
AnyConnectionKind::Mssql(conn) => conn
.fetch_optional((query, arguments.map(Into::into)))
.await?
.map(Into::into),
})
})
}
fn prepare_with<'e, 'q: 'e>(
self,
sql: &'q str,
_parameters: &[AnyTypeInfo],
) -> BoxFuture<'e, Result<AnyStatement<'q>, Error>>
where
'c: 'e,
{
Box::pin(async move {
Ok(match &mut self.0 {
#[cfg(feature = "postgres")]
AnyConnectionKind::Postgres(conn) => conn.prepare(sql).await.map(Into::into)?,
#[cfg(feature = "mysql")]
AnyConnectionKind::MySql(conn) => conn.prepare(sql).await.map(Into::into)?,
#[cfg(feature = "sqlite")]
AnyConnectionKind::Sqlite(conn) => conn.prepare(sql).await.map(Into::into)?,
#[cfg(feature = "mssql")]
AnyConnectionKind::Mssql(conn) => conn.prepare(sql).await.map(Into::into)?,
})
})
}
fn describe<'e, 'q: 'e>(
self,
sql: &'q str,
) -> BoxFuture<'e, Result<Describe<Self::Database>, Error>>
where
'c: 'e,
{
Box::pin(async move {
Ok(match &mut self.0 {
#[cfg(feature = "postgres")]
AnyConnectionKind::Postgres(conn) => conn.describe(sql).await.map(map_describe)?,
#[cfg(feature = "mysql")]
AnyConnectionKind::MySql(conn) => conn.describe(sql).await.map(map_describe)?,
#[cfg(feature = "sqlite")]
AnyConnectionKind::Sqlite(conn) => conn.describe(sql).await.map(map_describe)?,
#[cfg(feature = "mssql")]
AnyConnectionKind::Mssql(conn) => conn.describe(sql).await.map(map_describe)?,
})
})
}
}
fn map_describe<DB: Database>(info: Describe<DB>) -> Describe<Any>
where
AnyTypeInfo: From<DB::TypeInfo>,
AnyColumn: From<DB::Column>,
{
let parameters = match info.parameters {
None => None,
Some(Either::Right(num)) => Some(Either::Right(num)),
Some(Either::Left(params)) => {
Some(Either::Left(params.into_iter().map(Into::into).collect()))
}
};
Describe {
parameters,
nullable: info.nullable,
columns: info.columns.into_iter().map(Into::into).collect(),
}
}