diesel/mysql_like/types/
numeric.rs

1#[cfg(feature = "numeric")]
2mod bigdecimal {
3    use bigdecimal::{BigDecimal, FromPrimitive};
4    use std::io::prelude::*;
5
6    use crate::deserialize::{self, FromSql};
7    use crate::mysql_like::MysqlLikeBackend;
8    use crate::mysql_like::{MysqlValue, NumericRepresentation};
9    use crate::serialize::{self, IsNull, Output, ToSql};
10    use crate::sql_types::Numeric;
11
12    impl<DB: MysqlLikeBackend> ToSql<Numeric, DB> for BigDecimal {
13        fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, DB>) -> serialize::Result {
14            out.write_fmt(format_args!("{0}", *self))write!(out, "{}", *self)
15                .map(|_| IsNull::No)
16                .map_err(Into::into)
17        }
18    }
19
20    impl<DB: MysqlLikeBackend> FromSql<Numeric, DB> for BigDecimal {
21        fn from_sql(value: MysqlValue<'_>) -> deserialize::Result<Self> {
22            match value.numeric_value()? {
23                NumericRepresentation::Tiny(x) => Ok(x.into()),
24                NumericRepresentation::Small(x) => Ok(x.into()),
25                NumericRepresentation::Medium(x) => Ok(x.into()),
26                NumericRepresentation::Big(x) => Ok(x.into()),
27                NumericRepresentation::Float(x) => BigDecimal::from_f32(x)
28                    .ok_or_else(|| ::alloc::__export::must_use({
        ::alloc::fmt::format(format_args!("{0} is not valid decimal number ",
                x))
    })format!("{x} is not valid decimal number ").into()),
29                NumericRepresentation::Double(x) => BigDecimal::from_f64(x)
30                    .ok_or_else(|| ::alloc::__export::must_use({
        ::alloc::fmt::format(format_args!("{0} is not valid decimal number ",
                x))
    })format!("{x} is not valid decimal number ").into()),
31                NumericRepresentation::Decimal(bytes) => BigDecimal::parse_bytes(bytes, 10)
32                    .ok_or_else(|| ::alloc::__export::must_use({
        ::alloc::fmt::format(format_args!("{0:?} is not valid decimal number ",
                bytes))
    })format!("{bytes:?} is not valid decimal number ").into()),
33            }
34        }
35    }
36}
diesel/mysql_like/types/numeric.rs

diesel/mysql_like/types/
numeric.rs
