surrealpatch/lib/src/sql/table.rs

127 lines
2.6 KiB
Rust

use crate::sql::common::commas;
use crate::sql::error::IResult;
use crate::sql::escape::escape_ident;
use crate::sql::fmt::Fmt;
use crate::sql::id::Id;
use crate::sql::ident::{ident_raw, Ident};
use crate::sql::strand::no_nul_bytes;
use crate::sql::thing::Thing;
use nom::multi::separated_list1;
use serde::{Deserialize, Serialize};
use std::fmt::{self, Display, Formatter};
use std::ops::Deref;
use std::str;
pub(crate) const TOKEN: &str = "$surrealdb::private::sql::Table";
#[derive(Clone, Debug, Default, Eq, PartialEq, PartialOrd, Serialize, Deserialize, Hash)]
pub struct Tables(pub Vec<Table>);
impl From<Table> for Tables {
fn from(v: Table) -> Self {
Tables(vec![v])
}
}
impl Deref for Tables {
type Target = Vec<Table>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl Display for Tables {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
Display::fmt(&Fmt::comma_separated(&self.0), f)
}
}
pub fn tables(i: &str) -> IResult<&str, Tables> {
let (i, v) = separated_list1(commas, table)(i)?;
Ok((i, Tables(v)))
}
#[derive(Clone, Debug, Default, Eq, PartialEq, PartialOrd, Serialize, Deserialize, Hash)]
#[serde(rename = "$surrealdb::private::sql::Table")]
pub struct Table(#[serde(with = "no_nul_bytes")] pub String);
impl From<String> for Table {
fn from(v: String) -> Self {
Self(v)
}
}
impl From<&str> for Table {
fn from(v: &str) -> Self {
Self::from(String::from(v))
}
}
impl From<Ident> for Table {
fn from(v: Ident) -> Self {
Self(v.0)
}
}
impl Deref for Table {
type Target = String;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl Table {
pub fn generate(&self) -> Thing {
Thing {
tb: self.0.to_owned(),
id: Id::rand(),
}
}
}
impl Display for Table {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
Display::fmt(&escape_ident(&self.0), f)
}
}
pub fn table(i: &str) -> IResult<&str, Table> {
let (i, v) = ident_raw(i)?;
Ok((i, Table(v)))
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn table_normal() {
let sql = "test";
let res = table(sql);
assert!(res.is_ok());
let out = res.unwrap().1;
assert_eq!("test", format!("{}", out));
assert_eq!(out, Table(String::from("test")));
}
#[test]
fn table_quoted_backtick() {
let sql = "`test`";
let res = table(sql);
assert!(res.is_ok());
let out = res.unwrap().1;
assert_eq!("test", format!("{}", out));
assert_eq!(out, Table(String::from("test")));
}
#[test]
fn table_quoted_brackets() {
let sql = "⟨test⟩";
let res = table(sql);
assert!(res.is_ok());
let out = res.unwrap().1;
assert_eq!("test", format!("{}", out));
assert_eq!(out, Table(String::from("test")));
}
}