userlib/enums/
residency_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 ResidencyType {
    AustralianCitizen,
    PermanentResident,
    NewZealandCitizen,
    TemporaryVisaHolder,
    NorfolkIslander,
    ResidenceDetermination,
}

#[cfg(feature = "diesel")]
impl ToSql<Varchar, Pg> for ResidencyType {
    fn to_sql<W: Write>(&self, out: &mut Output<W, Pg>) -> serialize::Result {
        match *self {
            ResidencyType::AustralianCitizen => out.write_all(b"AustralianCitizen")?,
            ResidencyType::PermanentResident => out.write_all(b"PermanentResident")?,
            ResidencyType::NewZealandCitizen => out.write_all(b"NewZealandCitizen")?,
            ResidencyType::TemporaryVisaHolder => out.write_all(b"TemporaryVisaHolder")?,
            ResidencyType::NorfolkIslander => out.write_all(b"NorfolkIslander")?,
            ResidencyType::ResidenceDetermination => out.write_all(b"ResidenceDetermination")?,
        }
        Ok(IsNull::No)
    }
}

#[cfg(feature = "diesel")]
impl FromSql<Varchar, Pg> for ResidencyType {
    fn from_sql(bytes: Option<&<Pg as Backend>::RawValue>) -> deserialize::Result<Self> {
        match not_none!(bytes) {
            b"AustralianCitizen" => Ok(ResidencyType::AustralianCitizen),
            b"PermanentResident" => Ok(ResidencyType::PermanentResident),
            b"NewZealandCitizen" => Ok(ResidencyType::NewZealandCitizen),
            b"TemporaryVisaHolder" => Ok(ResidencyType::TemporaryVisaHolder),
            b"NorfolkIslander" => Ok(ResidencyType::NorfolkIslander),
            b"ResidenceDetermination" => Ok(ResidencyType::ResidenceDetermination),
            _ => Err("Unrecognized enum variant".into()),
        }
    }
}