postgres_types_extra/
pg_circle.rs

1use bytes::{Buf, BufMut};
2use postgres_types::{FromSql, IsNull, ToSql, Type, accepts, to_sql_checked};
3use std::{error::Error, fmt};
4
5use super::pg_point::PgPoint;
6
7#[derive(Debug, Clone)]
8pub struct PgCircle {
9    pub center: PgPoint,
10    pub radius: f64,
11}
12
13impl fmt::Display for PgCircle {
14    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
15        write!(f, "<{},{}>", self.center, self.radius)
16    }
17}
18
19impl FromSql<'_> for PgCircle {
20    fn from_sql(ty: &Type, mut raw: &[u8]) -> Result<Self, Box<dyn Error + Sync + Send>> {
21        if ty.name() != "circle" {
22            return Err("Unexpected type".into());
23        }
24        let x = raw.get_f64();
25        let y = raw.get_f64();
26        let radius = raw.get_f64();
27        Ok(PgCircle {
28            center: PgPoint { x, y },
29            radius,
30        })
31    }
32
33    accepts!(CIRCLE);
34}
35
36impl ToSql for PgCircle {
37    fn to_sql(
38        &self,
39        ty: &Type,
40        out: &mut bytes::BytesMut,
41    ) -> Result<IsNull, Box<dyn Error + Sync + Send>>
42    where
43        Self: Sized,
44    {
45        if ty.name() != "circle" {
46            return Err("Unexpected type".into());
47        }
48
49        out.put_f64(self.center.x);
50        out.put_f64(self.center.y);
51        out.put_f64(self.radius);
52
53        Ok(IsNull::No)
54    }
55
56    accepts!(CIRCLE);
57
58    to_sql_checked!();
59}
postgres_types_extra/pg_circle.rs

postgres_types_extra/
pg_circle.rs
