surrealdb_sql/statements/
show.rs

1use chrono::{DateTime, Utc};
2use common::fmt::{EscapeKwFreeIdent, SqlDatetime};
3use surrealdb_types::{SqlFormat, ToSql, write_sql};
4
5use crate::TableName;
6
7#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Hash)]
8#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
9pub enum ShowSince {
10	Timestamp(DateTime<Utc>),
11	Versionstamp(u64),
12}
13
14/// A SHOW CHANGES statement for displaying changes made to a table or database.
15#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Hash)]
16#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
17pub struct ShowStatement {
18	pub table: Option<TableName>,
19	pub since: ShowSince,
20	pub limit: Option<u32>,
21}
22
23impl ToSql for ShowStatement {
24	fn fmt_sql(&self, f: &mut String, fmt: SqlFormat) {
25		write_sql!(f, fmt, "SHOW CHANGES FOR");
26		match self.table {
27			Some(ref v) => write_sql!(f, fmt, " TABLE {}", EscapeKwFreeIdent(v.as_str())),
28			None => write_sql!(f, fmt, " DATABASE"),
29		}
30		match self.since {
31			ShowSince::Timestamp(ref v) => write_sql!(f, fmt, " SINCE {}", SqlDatetime(*v)),
32			ShowSince::Versionstamp(ref v) => write_sql!(f, fmt, " SINCE {}", v),
33		}
34		if let Some(ref v) = self.limit {
35			write_sql!(f, fmt, " LIMIT {}", v)
36		}
37	}
38}
surrealdb_sql/statements/show.rs

surrealdb_sql/statements/
show.rs
