paymentlib/enums/
payment_status.rs

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use serde::Deserialize;
use serde::Serialize;
use std::fmt;
use std::fmt::Formatter;
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,
};
//todo A successful transaction during period when it may be declined or dishonoured.(Approved*)
#[derive(Debug, PartialEq, Clone, Serialize, Deserialize, EnumString)]
#[cfg_attr(feature = "diesel", derive(AsExpression, FromSqlRow))]
#[cfg_attr(feature = "diesel", sql_type = "Varchar")]
pub enum PaymentStatus {
    Paid,
    Pending,
    Declined,
    VoidRequested,
    Voided,
    VoidFailed,
    RefundRequested,
    Refunded,
    RefundFailed,
    Suspended,
    Error,
    Undefined,
}
impl Default for PaymentStatus {
    fn default() -> Self {
        PaymentStatus::Undefined
    }
}
impl fmt::Display for PaymentStatus {
    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
        write!(f, "{:?}", self)
    }
}
#[cfg(feature = "diesel")]
impl ToSql<Varchar, Pg> for PaymentStatus {
    fn to_sql<W: Write>(&self, out: &mut Output<W, Pg>) -> serialize::Result {
        match *self {
            PaymentStatus::Paid => out.write_all(b"Paid")?,
            PaymentStatus::Pending => out.write_all(b"Pending")?,
            PaymentStatus::Declined => out.write_all(b"Declined")?,
            PaymentStatus::VoidRequested => out.write_all(b"VoidRequested")?,
            PaymentStatus::Voided => out.write_all(b"Voided")?,
            PaymentStatus::VoidFailed => out.write_all(b"VoidFailed")?,
            PaymentStatus::RefundRequested => out.write_all(b"RefundRequested")?,
            PaymentStatus::Refunded => out.write_all(b"Refunded")?,
            PaymentStatus::RefundFailed => out.write_all(b"RefundFailed")?,
            PaymentStatus::Suspended => out.write_all(b"Suspended")?,
            PaymentStatus::Error => out.write_all(b"Error")?,
            PaymentStatus::Undefined => out.write_all(b"Undefined")?,
        }
        Ok(IsNull::No)
    }
}

#[cfg(feature = "diesel")]
impl FromSql<Varchar, Pg> for PaymentStatus {
    fn from_sql(bytes: Option<&<Pg as Backend>::RawValue>) -> deserialize::Result<Self> {
        match not_none!(bytes) {
            b"Paid" => Ok(PaymentStatus::Paid),
            b"Pending" => Ok(PaymentStatus::Pending),
            b"Declined" => Ok(PaymentStatus::Declined),
            b"VoidRequested" => Ok(PaymentStatus::VoidRequested),
            b"Voided" => Ok(PaymentStatus::Voided),
            b"VoidFailed" => Ok(PaymentStatus::VoidFailed),
            b"RefundRequested" => Ok(PaymentStatus::RefundRequested),
            b"Refunded" => Ok(PaymentStatus::Refunded),
            b"RefundFailed" => Ok(PaymentStatus::RefundFailed),
            b"Suspended" => Ok(PaymentStatus::Suspended),
            b"Error" => Ok(PaymentStatus::Error),
            b"Undefined" => Ok(PaymentStatus::Undefined),
            _ => Err("Unrecognized enum variant".into()),
        }
    }
}