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use crate::{tds::Numeric, xml::XmlData, ColumnData};
use uuid::Uuid;
pub trait FromSql<'a>
where
Self: Sized + 'a,
{
fn from_sql(value: &'a ColumnData<'static>) -> crate::Result<Option<Self>>;
}
pub trait FromSqlOwned
where
Self: Sized,
{
fn from_sql_owned(value: ColumnData<'static>) -> crate::Result<Option<Self>>;
}
from_sql!(bool: ColumnData::Bit(val) => (*val, val));
from_sql!(u8: ColumnData::U8(val) => (*val, val), ColumnData::I32(None) => (None, None));
from_sql!(i16: ColumnData::I16(val) => (*val, val), ColumnData::U8(None) => (None, None), ColumnData::I32(None) => (None, None));
from_sql!(i32: ColumnData::I32(val) => (*val, val), ColumnData::U8(None) => (None, None));
from_sql!(i64: ColumnData::I64(val) => (*val, val), ColumnData::U8(None) => (None, None), ColumnData::I32(None) => (None, None));
from_sql!(f32: ColumnData::F32(val) => (*val, val));
from_sql!(f64: ColumnData::F64(val) => (*val, val));
from_sql!(Uuid: ColumnData::Guid(val) => (*val, val));
from_sql!(Numeric: ColumnData::Numeric(n) => (*n, n));
impl FromSqlOwned for XmlData {
fn from_sql_owned(value: ColumnData<'static>) -> crate::Result<Option<Self>> {
match value {
ColumnData::Xml(data) => Ok(data.map(|data| data.into_owned())),
v => Err(crate::Error::Conversion(
format!("cannot interpret {:?} as a String value", v).into(),
)),
}
}
}
impl<'a> FromSql<'a> for &'a XmlData {
fn from_sql(value: &'a ColumnData<'static>) -> crate::Result<Option<Self>> {
match value {
ColumnData::Xml(data) => Ok(data.as_ref().map(|s| s.as_ref())),
v => Err(crate::Error::Conversion(
format!("cannot interpret {:?} as a String value", v).into(),
)),
}
}
}
impl FromSqlOwned for String {
fn from_sql_owned(value: ColumnData<'static>) -> crate::Result<Option<Self>> {
match value {
ColumnData::String(s) => Ok(s.map(|s| s.into_owned())),
v => Err(crate::Error::Conversion(
format!("cannot interpret {:?} as a String value", v).into(),
)),
}
}
}
impl<'a> FromSql<'a> for &'a str {
fn from_sql(value: &'a ColumnData<'static>) -> crate::Result<Option<Self>> {
match value {
ColumnData::String(s) => Ok(s.as_ref().map(|s| s.as_ref())),
v => Err(crate::Error::Conversion(
format!("cannot interpret {:?} as a String value", v).into(),
)),
}
}
}
impl FromSqlOwned for Vec<u8> {
fn from_sql_owned(value: ColumnData<'static>) -> crate::Result<Option<Self>> {
match value {
ColumnData::Binary(b) => Ok(b.map(|s| s.into_owned())),
v => Err(crate::Error::Conversion(
format!("cannot interpret {:?} as a String value", v).into(),
)),
}
}
}
impl<'a> FromSql<'a> for &'a [u8] {
fn from_sql(value: &'a ColumnData<'static>) -> crate::Result<Option<Self>> {
match value {
ColumnData::Binary(b) => Ok(b.as_ref().map(|s| s.as_ref())),
v => Err(crate::Error::Conversion(
format!("cannot interpret {:?} as a &[u8] value", v).into(),
)),
}
}
}