gitlib/enums/
runner_status.rs

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use std::fmt;
use std::fmt::Formatter;
use std::str;

use serde::Deserialize;
use serde::Serialize;

#[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)]
#[cfg_attr(
feature = "diesel",
derive(AsExpression, FromSqlRow),
sql_type = "Varchar"
)]

pub enum RunnerStatus {
    New,
    Online,
    Offline,
    Running,
    Waiting
}
impl fmt::Display for RunnerStatus {
    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
        write!(f, "{:?}", self)
    }
}

#[cfg(feature = "diesel")]
impl ToSql<Varchar, Pg> for RunnerStatus {
    fn to_sql<W: Write>(&self, out: &mut Output<W, Pg>) -> serialize::Result {
        match *self {
            RunnerStatus::New => out.write_all(b"New")?,
            RunnerStatus::Online => out.write_all(b"Online")?,
            RunnerStatus::Offline => out.write_all(b"Offline")?,
            RunnerStatus::Running => out.write_all(b"Running")?,
            RunnerStatus::Waiting => out.write_all(b"Waiting")?,
        }
        Ok(IsNull::No)
    }
}

#[cfg(feature = "diesel")]
impl FromSql<Varchar, Pg> for RunnerStatus {
    fn from_sql(bytes: Option<&<Pg as Backend>::RawValue>) -> deserialize::Result<Self> {
        match not_none!(bytes) {
            b"New" => Ok(RunnerStatus::New),
            b"Online" => Ok(RunnerStatus::Online),
            b"Offline" => Ok(RunnerStatus::Offline),
            b"Running" => Ok(RunnerStatus::Running),
            b"Waiting" => Ok(RunnerStatus::Waiting),
            _ => Err("Unrecognized enum variant".into()),
        }
    }
}