sqlx_postgres/types/time/
date.rsuse crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
use crate::types::time::PG_EPOCH;
use crate::types::Type;
use crate::{PgArgumentBuffer, PgHasArrayType, PgTypeInfo, PgValueFormat, PgValueRef, Postgres};
use std::mem;
use time::macros::format_description;
use time::{Date, Duration};
impl Type<Postgres> for Date {
fn type_info() -> PgTypeInfo {
PgTypeInfo::DATE
}
}
impl PgHasArrayType for Date {
fn array_type_info() -> PgTypeInfo {
PgTypeInfo::DATE_ARRAY
}
}
impl Encode<'_, Postgres> for Date {
fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> Result<IsNull, BoxDynError> {
let days: i32 = (*self - PG_EPOCH).whole_days().try_into().map_err(|_| {
format!("value {self:?} would overflow binary encoding for Postgres DATE")
})?;
Encode::<Postgres>::encode(days, buf)
}
fn size_hint(&self) -> usize {
mem::size_of::<i32>()
}
}
impl<'r> Decode<'r, Postgres> for Date {
fn decode(value: PgValueRef<'r>) -> Result<Self, BoxDynError> {
Ok(match value.format() {
PgValueFormat::Binary => {
let days: i32 = Decode::<Postgres>::decode(value)?;
PG_EPOCH + Duration::days(days.into())
}
PgValueFormat::Text => Date::parse(
value.as_str()?,
&format_description!("[year]-[month]-[day]"),
)?,
})
}
}