paymentlib/enums/
account_status.rs

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use serde::Deserialize;
use serde::Serialize;
use strum_macros::Display;
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, Display)]
#[cfg_attr(feature = "diesel", derive(AsExpression, FromSqlRow))]
#[cfg_attr(feature = "diesel", sql_type = "Varchar")]
pub enum AccountStatus {
    Confirmed,
    Unconfirmed,
    Canceled,
    Blocked,
}

#[cfg(feature = "diesel")]
impl ToSql<Varchar, Pg> for AccountStatus {
    fn to_sql<W: Write>(&self, out: &mut Output<W, Pg>) -> serialize::Result {
        match *self {
            AccountStatus::Confirmed => out.write_all(b"Confirmed")?,
            AccountStatus::Unconfirmed => out.write_all(b"Unconfirmed")?,
            AccountStatus::Canceled => out.write_all(b"Canceled")?,
            AccountStatus::Blocked => out.write_all(b"Blocked")?,
        }
        Ok(IsNull::No)
    }
}

#[cfg(feature = "diesel")]
impl FromSql<Varchar, Pg> for AccountStatus {
    fn from_sql(bytes: Option<&<Pg as Backend>::RawValue>) -> deserialize::Result<Self> {
        match not_none!(bytes) {
            b"Confirmed" => Ok(AccountStatus::Confirmed),
            b"Unconfirmed" => Ok(AccountStatus::Unconfirmed),
            b"Canceled" => Ok(AccountStatus::Canceled),
            b"Blocked" => Ok(AccountStatus::Blocked),

            _ => Err("Unrecognized enum variant".into()),
        }
    }
}