projectlib/enums/
action_type.rs

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use serde::Deserialize;
use serde::Serialize;
use std::fmt;
use std::fmt::Formatter;
use std::str;

#[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 ActionType {
    CheckBoxComplete,
    CheckBoxIncomplete,
    Comment,
    LabelAdd,
    LabelRemove,
    LabelReplace,
    Status,
    Create,
    Description,
    Heading,
    Milestone,
    Assignee,
    DueDate,
    Trackers,
    Confidentiality,
}
impl fmt::Display for ActionType {
    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
        write!(f, "{:?}", self)
    }
}

#[cfg(feature = "diesel")]
impl ToSql<Varchar, Pg> for ActionType {
    fn to_sql<W: Write>(&self, out: &mut Output<W, Pg>) -> serialize::Result {
        match *self {
            ActionType::CheckBoxComplete => out.write_all(b"CheckBoxComplete")?,
            ActionType::CheckBoxIncomplete => out.write_all(b"CheckBoxIncomplete")?,
            ActionType::Comment => out.write_all(b"Comment")?,
            ActionType::LabelAdd => out.write_all(b"LabelAdd")?,
            ActionType::LabelRemove => out.write_all(b"LabelRemove")?,
            ActionType::LabelReplace => out.write_all(b"LabelReplace")?,
            ActionType::Status => out.write_all(b"Status")?,
            ActionType::Create => out.write_all(b"Create")?,
            ActionType::Description => out.write_all(b"Description")?,
            ActionType::Heading => out.write_all(b"Heading")?,
            ActionType::Milestone => out.write_all(b"Milestone")?,
            ActionType::Assignee => out.write_all(b"Assignee")?,
            ActionType::DueDate => out.write_all(b"DueDate")?,
            ActionType::Confidentiality => out.write_all(b"Confidentiality")?,
            ActionType::Trackers => out.write_all(b"Trackers")?,
        }
        Ok(IsNull::No)
    }
}

#[cfg(feature = "diesel")]
impl FromSql<Varchar, Pg> for ActionType {
    fn from_sql(bytes: Option<&<Pg as Backend>::RawValue>) -> deserialize::Result<Self> {
        match not_none!(bytes) {
            b"CheckBoxComplete" => Ok(ActionType::CheckBoxComplete),
            b"CheckBoxIncomplete" => Ok(ActionType::CheckBoxIncomplete),
            b"Comment" => Ok(ActionType::Comment),
            b"LabelAdd" => Ok(ActionType::LabelAdd),
            b"LabelRemove" => Ok(ActionType::LabelRemove),
            b"LabelReplace" => Ok(ActionType::LabelReplace),
            b"Status" => Ok(ActionType::Status),
            b"Create" => Ok(ActionType::Create),
            b"Description" => Ok(ActionType::Description),
            b"Heading" => Ok(ActionType::Heading),
            b"Milestone" => Ok(ActionType::Milestone),
            b"Assignee" => Ok(ActionType::Assignee),
            b"DueDate" => Ok(ActionType::DueDate),
            b"Confidentiality" => Ok(ActionType::Confidentiality),
            b"Trackers" => Ok(ActionType::Trackers),
            _ => Err("Unrecognized enum variant".into()),
        }
    }
}