sqlite_graphrag/storage/
versions.rs

1//! Version history storage for memory records.
2//!
3//! Manages the `memory_versions` table: inserts a new version snapshot on
4//! every update so the `restore` command can roll back to any prior body.
5
6use crate::errors::AppError;
7use rusqlite::{params, Connection};
8
9/// Insert version.
10#[allow(clippy::too_many_arguments)]
11pub fn insert_version(
12    conn: &Connection,
13    memory_id: i64,
14    version: i64,
15    name: &str,
16    memory_type: &str,
17    description: &str,
18    body: &str,
19    metadata: &str,
20    changed_by: Option<&str>,
21    change_reason: &str,
22) -> Result<(), AppError> {
23    conn.execute(
24        "INSERT INTO memory_versions
25         (memory_id, version, name, type, description, body, metadata, changed_by, change_reason)
26         VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9)",
27        params![
28            memory_id,
29            version,
30            name,
31            memory_type,
32            description,
33            body,
34            metadata,
35            changed_by,
36            change_reason
37        ],
38    )?;
39    Ok(())
40}
41
42/// Next version.
43pub fn next_version(conn: &Connection, memory_id: i64) -> Result<i64, AppError> {
44    let v: i64 = conn.query_row(
45        "SELECT COALESCE(MAX(version), 0) + 1 FROM memory_versions WHERE memory_id = ?1",
46        params![memory_id],
47        |r| r.get(0),
48    )?;
49    Ok(v)
50}
sqlite_graphrag/storage/versions.rs

sqlite_graphrag/storage/
versions.rs
