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use byteorder::{NetworkEndian, ReadBytesExt, WriteBytesExt};
use std::io::prelude::*;
use deserialize::{self, FromSql};
use pg::Pg;
use serialize::{self, IsNull, Output, ToSql};
use sql_types;
impl FromSql<sql_types::Oid, Pg> for u32 {
fn from_sql(bytes: Option<&[u8]>) -> deserialize::Result<Self> {
let mut bytes = not_none!(bytes);
bytes.read_u32::<NetworkEndian>().map_err(|e| e.into())
}
}
impl ToSql<sql_types::Oid, Pg> for u32 {
fn to_sql<W: Write>(&self, out: &mut Output<W, Pg>) -> serialize::Result {
out.write_u32::<NetworkEndian>(*self)
.map(|_| IsNull::No)
.map_err(|e| e.into())
}
}
#[test]
fn i16_to_sql() {
let mut bytes = Output::test();
ToSql::<sql_types::SmallInt, Pg>::to_sql(&1i16, &mut bytes).unwrap();
ToSql::<sql_types::SmallInt, Pg>::to_sql(&0i16, &mut bytes).unwrap();
ToSql::<sql_types::SmallInt, Pg>::to_sql(&-1i16, &mut bytes).unwrap();
assert_eq!(bytes, vec![0, 1, 0, 0, 255, 255]);
}
#[test]
fn i32_to_sql() {
let mut bytes = Output::test();
ToSql::<sql_types::Integer, Pg>::to_sql(&1i32, &mut bytes).unwrap();
ToSql::<sql_types::Integer, Pg>::to_sql(&0i32, &mut bytes).unwrap();
ToSql::<sql_types::Integer, Pg>::to_sql(&-1i32, &mut bytes).unwrap();
assert_eq!(bytes, vec![0, 0, 0, 1, 0, 0, 0, 0, 255, 255, 255, 255]);
}
#[test]
fn i64_to_sql() {
let mut bytes = Output::test();
ToSql::<sql_types::BigInt, Pg>::to_sql(&1i64, &mut bytes).unwrap();
ToSql::<sql_types::BigInt, Pg>::to_sql(&0i64, &mut bytes).unwrap();
ToSql::<sql_types::BigInt, Pg>::to_sql(&-1i64, &mut bytes).unwrap();
assert_eq!(
bytes,
vec![
0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255,
]
);
}