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//! Integrates `ArrayString` with other crates' traits
use crate::prelude::*;
#[cfg(all(feature = "diesel-traits", feature = "std"))]
use std::io::Write;
#[cfg(feature = "diesel-traits")]
use diesel::{expression::*, prelude::*, query_builder::*, row::Row, sql_types::*};
#[cfg(feature = "diesel-traits")]
use diesel::backend::Backend;
#[cfg(feature = "diesel-traits")]
use diesel::deserialize::{self, FromSql, FromSqlRow, Queryable};
#[cfg(all(feature = "diesel-traits", feature = "std"))]
use diesel::serialize::{self, Output, ToSql};
#[cfg(feature = "serde-traits")]
use serde::{de::Deserializer, ser::Serializer, Deserialize, Serialize};
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "serde-traits")))]
#[cfg(feature = "serde-traits")]
impl<SIZE> Serialize for ArrayString<SIZE>
where
SIZE: Capacity,
{
#[inline]
fn serialize<S: Serializer>(&self, ser: S) -> Result<S::Ok, S::Error> {
Serialize::serialize(self.as_str(), ser)
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "serde-traits")))]
#[cfg(feature = "serde-traits")]
impl<'a, SIZE> Deserialize<'a> for ArrayString<SIZE>
where
SIZE: Capacity,
{
#[inline]
fn deserialize<D: Deserializer<'a>>(des: D) -> Result<Self, D::Error> {
<&str>::deserialize(des).map(Self::from_str_truncate)
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<SIZE: Capacity> Expression for ArrayString<SIZE> {
type SqlType = VarChar;
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<SIZE: Capacity, QS> SelectableExpression<QS> for ArrayString<SIZE> {}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<SIZE: Capacity, QS> AppearsOnTable<QS> for ArrayString<SIZE> {}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<SIZE: Capacity> NonAggregate for ArrayString<SIZE> {}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<SIZE, DB> QueryFragment<DB> for ArrayString<SIZE>
where
SIZE: Capacity,
DB: Backend + HasSqlType<VarChar>,
{
#[inline]
fn walk_ast(&self, mut pass: AstPass<DB>) -> QueryResult<()> {
pass.push_bind_param::<Varchar, _>(&self.as_str())?;
Ok(())
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<SIZE, ST, DB> FromSql<ST, DB> for ArrayString<SIZE>
where
SIZE: Capacity,
DB: Backend,
*const str: FromSql<ST, DB>,
{
#[inline]
fn from_sql(bytes: Option<&DB::RawValue>) -> deserialize::Result<Self> {
let ptr: *const str = FromSql::<ST, DB>::from_sql(bytes)?;
// We know that the pointer impl will never return null
Ok(Self::from_str_truncate(unsafe { &*ptr }))
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<SIZE, ST, DB> FromSqlRow<ST, DB> for ArrayString<SIZE>
where
SIZE: Capacity,
DB: Backend,
*const str: FromSql<ST, DB>,
{
const FIELDS_NEEDED: usize = 1;
#[inline]
fn build_from_row<T: Row<DB>>(row: &mut T) -> deserialize::Result<Self> {
FromSql::<ST, DB>::from_sql(row.take())
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<SIZE, ST, DB> Queryable<ST, DB> for ArrayString<SIZE>
where
SIZE: Capacity,
DB: Backend,
*const str: FromSql<ST, DB>,
{
type Row = Self;
#[inline]
fn build(row: Self::Row) -> Self {
row
}
}
#[cfg_attr(
docs_rs_workaround,
doc(cfg(all(feature = "diesel-traits", feature = "std")))
)]
#[cfg(all(feature = "diesel-traits", feature = "std"))]
impl<SIZE, DB> ToSql<VarChar, DB> for ArrayString<SIZE>
where
SIZE: Capacity,
DB: Backend,
{
#[inline]
fn to_sql<W: Write>(&self, out: &mut Output<W, DB>) -> serialize::Result {
ToSql::<VarChar, DB>::to_sql(self.as_str(), out)
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl Expression for CacheString {
type SqlType = VarChar;
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<QS> SelectableExpression<QS> for CacheString {}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<QS> AppearsOnTable<QS> for CacheString {}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl NonAggregate for CacheString {}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<DB> QueryFragment<DB> for CacheString
where
DB: Backend + HasSqlType<VarChar>,
{
#[inline]
fn walk_ast(&self, pass: AstPass<DB>) -> QueryResult<()> {
self.0.walk_ast(pass)
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<ST, DB> FromSql<ST, DB> for CacheString
where
DB: Backend,
*const str: FromSql<ST, DB>,
{
#[inline]
fn from_sql(bytes: Option<&DB::RawValue>) -> deserialize::Result<Self> {
Ok(CacheString(FromSql::from_sql(bytes)?))
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<ST, DB> FromSqlRow<ST, DB> for CacheString
where
DB: Backend,
*const str: FromSql<ST, DB>,
{
const FIELDS_NEEDED: usize = 1;
#[inline]
fn build_from_row<T: Row<DB>>(row: &mut T) -> deserialize::Result<Self> {
Ok(CacheString(FromSqlRow::build_from_row(row)?))
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "diesel-traits")))]
#[cfg(feature = "diesel-traits")]
impl<ST, DB> Queryable<ST, DB> for CacheString
where
DB: Backend,
*const str: FromSql<ST, DB>,
{
type Row = Self;
#[inline]
fn build(row: Self::Row) -> Self {
row
}
}
#[cfg_attr(
docs_rs_workaround,
doc(cfg(all(feature = "diesel-traits", feature = "std")))
)]
#[cfg(all(feature = "diesel-traits", feature = "std"))]
impl<DB> ToSql<VarChar, DB> for CacheString
where
DB: Backend,
{
#[inline]
fn to_sql<W: Write>(&self, out: &mut Output<W, DB>) -> serialize::Result {
ToSql::to_sql(&self.0, out)
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "serde-traits")))]
#[cfg(feature = "serde-traits")]
impl Serialize for CacheString {
#[inline]
fn serialize<S: Serializer>(&self, ser: S) -> Result<S::Ok, S::Error> {
self.0.serialize(ser)
}
}
#[cfg_attr(docs_rs_workaround, doc(cfg(feature = "serde-traits")))]
#[cfg(feature = "serde-traits")]
impl<'a> Deserialize<'a> for CacheString {
#[inline]
fn deserialize<D: Deserializer<'a>>(des: D) -> Result<Self, D::Error> {
Ok(CacheString(Deserialize::deserialize(des)?))
}
}
#[cfg(test)]
mod tests {
#![allow(proc_macro_derive_resolution_fallback)]
#![allow(unused_import_braces)]
use super::*;
use crate::ArrayString;
#[cfg(feature = "serde-traits")]
#[derive(Serialize, Deserialize, PartialEq, Debug)]
struct DeriveSerde(pub ArrayString<typenum::U8>);
#[cfg(feature = "serde-traits")]
#[derive(Serialize, Deserialize, PartialEq, Debug)]
struct Derive2Serde(pub CacheString);
#[test]
#[cfg(feature = "serde-traits")]
fn serde_derive_json() {
let string =
serde_json::to_string(&DeriveSerde(ArrayString::try_from_str("abcdefg").unwrap()))
.unwrap();
let s: DeriveSerde = serde_json::from_str(&string).unwrap();
assert_eq!(
s,
DeriveSerde(ArrayString::try_from_str("abcdefg").unwrap())
);
}
#[test]
#[cfg(feature = "serde-traits")]
fn serde_derive2_json() {
let string = serde_json::to_string(&Derive2Serde(CacheString(
ArrayString::try_from_str("abcdefg").unwrap(),
)))
.unwrap();
let s: DeriveSerde = serde_json::from_str(&string).unwrap();
assert_eq!(
s,
DeriveSerde(ArrayString::try_from_str("abcdefg").unwrap())
);
}
#[test]
#[cfg(feature = "serde-traits")]
fn serde_json() {
let string =
serde_json::to_string(&ArrayString::<typenum::U8>::try_from_str("abcdefg").unwrap())
.unwrap();
let s: ArrayString<typenum::U8> = serde_json::from_str(&string).unwrap();
assert_eq!(
s,
ArrayString::<typenum::U8>::try_from_str("abcdefg").unwrap()
);
}
#[cfg(all(feature = "diesel-traits", feature = "std"))]
use diesel::{debug_query, insert_into, mysql, pg, sqlite, update};
#[cfg(all(feature = "diesel-traits", feature = "std"))]
#[macro_use]
table! {
derives (name) {
name -> VarChar,
}
}
#[cfg(all(feature = "diesel-traits", feature = "std"))]
#[derive(Queryable, Insertable, Clone, Debug)]
#[table_name = "derives"]
struct DeriveDiesel {
pub name: ArrayString<typenum::U32>,
}
#[cfg(all(feature = "diesel-traits", feature = "std"))]
#[derive(Queryable, Insertable, Clone, Debug)]
#[table_name = "derives"]
struct Derive2Diesel {
pub name: CacheString,
}
#[cfg(all(feature = "diesel-traits", feature = "std"))]
#[derive(Queryable, Insertable, Clone, Debug)]
#[table_name = "derives"]
struct Derive3Diesel<'a> {
pub name: &'a str,
}
#[cfg(all(feature = "diesel-traits", feature = "std"))]
#[test]
fn diesel_derive_query_compare_insert() {
let array = DeriveDiesel {
name: ArrayString::try_from_str("Name1").unwrap(),
};
let cache = Derive2Diesel {
name: CacheString(ArrayString::try_from_str("Name1").unwrap()),
};
let string = Derive3Diesel { name: "Name1" };
let insert_array = insert_into(derives::table).values(&array);
let insert_cache = insert_into(derives::table).values(&cache);
let insert_string = insert_into(derives::table).values(&string);
assert_eq!(
debug_query::<pg::Pg, _>(&insert_array).to_string(),
debug_query::<pg::Pg, _>(&insert_string).to_string()
);
assert_eq!(
debug_query::<pg::Pg, _>(&insert_cache).to_string(),
debug_query::<pg::Pg, _>(&insert_string).to_string()
);
assert_eq!(
debug_query::<mysql::Mysql, _>(&insert_array).to_string(),
debug_query::<mysql::Mysql, _>(&insert_string).to_string()
);
assert_eq!(
debug_query::<mysql::Mysql, _>(&insert_cache).to_string(),
debug_query::<mysql::Mysql, _>(&insert_string).to_string()
);
assert_eq!(
debug_query::<sqlite::Sqlite, _>(&insert_array).to_string(),
debug_query::<sqlite::Sqlite, _>(&insert_string).to_string()
);
assert_eq!(
debug_query::<sqlite::Sqlite, _>(&insert_cache).to_string(),
debug_query::<sqlite::Sqlite, _>(&insert_string).to_string()
);
}
#[test]
fn diesel_derive_query_compare_update() {
let array = DeriveDiesel {
name: ArrayString::try_from_str("Name1").unwrap(),
};
let cache = Derive2Diesel {
name: CacheString(ArrayString::try_from_str("Name1").unwrap()),
};
let string = Derive3Diesel { name: "Name1" };
let update_array = update(derives::table).set(derives::name.eq(&array.name));
let update_cache = update(derives::table).set(derives::name.eq(&cache.name));
let update_string = update(derives::table).set(derives::name.eq(&string.name));
assert_eq!(
debug_query::<pg::Pg, _>(&update_array).to_string(),
debug_query::<pg::Pg, _>(&update_string).to_string()
);
assert_eq!(
debug_query::<pg::Pg, _>(&update_cache).to_string(),
debug_query::<pg::Pg, _>(&update_string).to_string()
);
assert_eq!(
debug_query::<mysql::Mysql, _>(&update_array).to_string(),
debug_query::<mysql::Mysql, _>(&update_string).to_string()
);
assert_eq!(
debug_query::<mysql::Mysql, _>(&update_cache).to_string(),
debug_query::<mysql::Mysql, _>(&update_string).to_string()
);
assert_eq!(
debug_query::<sqlite::Sqlite, _>(&update_array).to_string(),
debug_query::<sqlite::Sqlite, _>(&update_string).to_string()
);
assert_eq!(
debug_query::<sqlite::Sqlite, _>(&update_cache).to_string(),
debug_query::<sqlite::Sqlite, _>(&update_string).to_string()
);
}
#[test]
#[ignore]
#[cfg(feature = "std")]
fn diesel_select_query_compiles() {
let conn = pg::PgConnection::establish("").unwrap();
let select_array: Vec<DeriveDiesel> = derives::table
.select(derives::all_columns)
.load(&conn)
.unwrap();
let select_cache: Vec<Derive2Diesel> = derives::table
.select(derives::all_columns)
.load(&conn)
.unwrap();
assert_eq!(
select_cache
.into_iter()
.map(|d| d.name.to_string())
.collect::<Vec<_>>(),
select_array
.into_iter()
.map(|d| d.name.to_string())
.collect::<Vec<_>>()
);
let _: std::time::SystemTime = derives::table.select(dsl::now).first(&conn).unwrap();
let _: std::time::SystemTime = derives::table.select(dsl::now).first(&conn).unwrap();
let conn = mysql::MysqlConnection::establish("").unwrap();
let select_array: Vec<DeriveDiesel> = derives::table
.select(derives::all_columns)
.load(&conn)
.unwrap();
let select_cache: Vec<Derive2Diesel> = derives::table
.select(derives::all_columns)
.load(&conn)
.unwrap();
assert_eq!(
select_array
.into_iter()
.map(|d| d.name.to_string())
.collect::<Vec<_>>(),
select_cache
.into_iter()
.map(|d| d.name.to_string())
.collect::<Vec<_>>()
);
}
#[cfg(all(feature = "diesel-traits", feature = "std"))]
#[test]
fn diesel_derive_query_sqlite() {
let conn = diesel::sqlite::SqliteConnection::establish(":memory:").unwrap();
let _ = diesel::sql_query("CREATE TABLE derives (name VARCHAR(32));")
.execute(&conn)
.unwrap();
let string = DeriveDiesel {
name: ArrayString::try_from_str("Name1").unwrap(),
};
let _ = insert_into(derives::table)
.values(&string)
.execute(&conn)
.unwrap();
let queried: DeriveDiesel = derives::table.first(&conn).unwrap();
assert_eq!(queried.name.as_str(), "Name1");
}
#[cfg(all(feature = "diesel-traits", feature = "std"))]
#[test]
fn diesel_derive2_query_sqlite() {
let conn = diesel::sqlite::SqliteConnection::establish(":memory:").unwrap();
let _ = diesel::sql_query("CREATE TABLE derives (name VARCHAR(32));")
.execute(&conn)
.unwrap();
let string = Derive2Diesel {
name: CacheString(ArrayString::try_from_str("Name1").unwrap()),
};
let _ = insert_into(derives::table)
.values(&string)
.execute(&conn)
.unwrap();
let queried: Derive2Diesel = derives::table.first(&conn).unwrap();
assert_eq!(queried.name.as_str(), "Name1");
}
}