use std::error::Error;
use bytes::BytesMut;
use postgres_types::{IsNull, ToSql, Type, to_sql_checked};
use crate::{Value, Values};
pub trait PostgresDriver<'a> {
fn as_params(&'a self) -> Vec<&'a (dyn ToSql + Sync)>;
}
impl ToSql for Value {
fn to_sql(
&self,
ty: &Type,
out: &mut BytesMut,
) -> Result<IsNull, Box<dyn Error + Sync + Send>> {
match self {
Value::Null => None::<bool>.to_sql(ty, out),
Value::Bool(v) => v.to_sql(ty, out),
Value::TinyInt(v) => v.to_sql(ty, out),
Value::SmallInt(v) => v.to_sql(ty, out),
Value::Int(v) => v.to_sql(ty, out),
Value::BigInt(v) => v.to_sql(ty, out),
Value::TinyUnsigned(v) => (*v as u32).to_sql(ty, out),
Value::SmallUnsigned(v) => (*v as u32).to_sql(ty, out),
Value::Unsigned(v) => v.to_sql(ty, out),
Value::BigUnsigned(v) => (*v as i64).to_sql(ty, out),
Value::Float(v) => v.to_sql(ty, out),
Value::Double(v) => v.to_sql(ty, out),
Value::String(v) => v.as_str().to_sql(ty, out),
Value::Bytes(v) => v.as_ref().to_sql(ty, out),
#[cfg(feature="postgres-json")]
Value::Json(v) => v.as_ref().to_sql(ty, out),
#[cfg(feature="postgres-chrono")]
Value::DateTime(v) => v.as_ref().to_sql(ty, out),
}
}
fn accepts(_ty: &Type) -> bool {
true
}
to_sql_checked!();
}
impl From<Vec<Value>> for Values {
fn from(v: Vec<Value>) -> Values {
Values(v)
}
}
impl<'a> PostgresDriver<'a> for Values {
fn as_params(&'a self) -> Vec<&'a (dyn ToSql + Sync)> {
self.0.iter().map(|x| {
let y: &(dyn ToSql + Sync) = x;
y
}).collect()
}
}