hrlib/enums/
pay_type.rs

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use serde::Deserialize;
use serde::Serialize;
use std::str;
use strum_macros::EnumString;
#[cfg(feature = "diesel")]
use {
    diesel::backend::Backend,
    diesel::deserialize::FromSql,
    diesel::pg::Pg,
    diesel::serialize::{IsNull, Output, ToSql},
    diesel::types::Varchar,
    diesel::{deserialize, not_none, serialize},
    diesel::{AsExpression, FromSqlRow},
    std::io::Write,
};

#[derive(Debug, PartialEq, Clone, Serialize, Deserialize, EnumString)]
#[cfg_attr(feature = "diesel", derive(AsExpression, FromSqlRow))]
#[cfg_attr(feature = "diesel", sql_type = "Varchar")]
pub enum PayType {
    Annual,
    Monthly,
    Weekly,
    Daily,
    Hourly,
}

#[cfg(feature = "diesel")]
impl ToSql<Varchar, Pg> for PayType {
    fn to_sql<W: Write>(&self, out: &mut Output<W, Pg>) -> serialize::Result {
        match *self {
            PayType::Annual => out.write_all(b"Annual")?,
            PayType::Monthly => out.write_all(b"Monthly")?,
            PayType::Weekly => out.write_all(b"Weekly")?,
            PayType::Daily => out.write_all(b"Daily")?,
            PayType::Hourly => out.write_all(b"Hourly")?,
        }
        Ok(IsNull::No)
    }
}

#[cfg(feature = "diesel")]
impl FromSql<Varchar, Pg> for PayType {
    fn from_sql(bytes: Option<&<Pg as Backend>::RawValue>) -> deserialize::Result<Self> {
        match not_none!(bytes) {
            b"Annual" => Ok(PayType::Annual),
            b"Monthly" => Ok(PayType::Monthly),
            b"Weekly" => Ok(PayType::Weekly),
            b"Daily" => Ok(PayType::Daily),
            b"Hourly" => Ok(PayType::Hourly),
            _ => Err("Unrecognized enum variant".into()),
        }
    }
}