siteslib/enums/
block_type.rs
use diesel::backend::Backend;
use diesel::deserialize::FromSql;
use diesel::pg::Pg;
use diesel::serialize::{IsNull, Output, ToSql};
use diesel::sql_types::Varchar;
use diesel::{deserialize, not_none, serialize};
use serde::Deserialize;
use serde::Serialize;
use std::io::Write;
#[derive(Debug, PartialEq, FromSqlRow, AsExpression, Clone, Serialize, Deserialize)]
#[sql_type = "Varchar"]
pub enum BlockType {
Article,
Submenu,
Picture,
Quote,
Video,
}
impl ToSql<Varchar, Pg> for BlockType {
fn to_sql<W: Write>(&self, out: &mut Output<W, Pg>) -> serialize::Result {
match *self {
BlockType::Article => out.write_all(b"Article")?,
BlockType::Submenu => out.write_all(b"Submenu")?,
BlockType::Picture => out.write_all(b"Picture")?,
BlockType::Quote => out.write_all(b"Quote")?,
BlockType::Video => out.write_all(b"Video")?,
}
Ok(IsNull::No)
}
}
impl FromSql<Varchar, Pg> for BlockType {
fn from_sql(bytes: Option<&<Pg as Backend>::RawValue>) -> deserialize::Result<Self> {
match not_none!(bytes) {
b"Article" => Ok(BlockType::Article),
b"Submenu" => Ok(BlockType::Submenu),
b"Picture" => Ok(BlockType::Picture),
b"Quote" => Ok(BlockType::Quote),
b"Video" => Ok(BlockType::Video),
_ => Err("Unrecognized enum variant".into()),
}
}
}