89 lines
1.9 KiB
TypeScript
89 lines
1.9 KiB
TypeScript
// deno-lint-ignore-file no-explicit-any
|
|
import { MaybePromise } from "@fabric/core";
|
|
import { Database, Statement } from "jsr:@db/sqlite";
|
|
|
|
export class SQLiteDatabase {
|
|
db: Database;
|
|
|
|
private cachedStatements = new Map<string, Statement>();
|
|
|
|
constructor(private readonly path: string) {
|
|
this.db = new Database(path);
|
|
}
|
|
|
|
init() {
|
|
this.run("PRAGMA journal_mode = WAL");
|
|
this.run("PRAGMA foreign_keys = ON");
|
|
}
|
|
|
|
close() {
|
|
this.finalizeStatements();
|
|
this.db.close();
|
|
}
|
|
|
|
async withTransaction(fn: () => MaybePromise<void>) {
|
|
try {
|
|
this.run("BEGIN TRANSACTION");
|
|
await fn();
|
|
this.run("COMMIT");
|
|
} catch {
|
|
this.run("ROLLBACK");
|
|
}
|
|
}
|
|
|
|
run(sql: string, params?: Record<string, any>) {
|
|
this.db.run(sql, params);
|
|
}
|
|
|
|
runPrepared(sql: string, params?: Record<string, any>) {
|
|
const cachedStmt = this.getCachedStatement(sql);
|
|
|
|
cachedStmt.run(params);
|
|
}
|
|
|
|
allPrepared(
|
|
sql: string,
|
|
params?: Record<string, any>,
|
|
transformer?: (row: any) => any,
|
|
) {
|
|
const cachedStmt = this.getCachedStatement(sql);
|
|
|
|
const result = cachedStmt.all(params);
|
|
|
|
return transformer ? result.map(transformer) : result;
|
|
}
|
|
|
|
onePrepared(
|
|
sql: string,
|
|
params?: Record<string, any>,
|
|
transformer?: (row: any) => any,
|
|
) {
|
|
const cachedStmt = this.getCachedStatement(sql);
|
|
|
|
const result = cachedStmt.all(params);
|
|
|
|
if (result.length === 0) {
|
|
return;
|
|
}
|
|
|
|
return transformer ? transformer(result[0]) : result[0];
|
|
}
|
|
|
|
private getCachedStatement(sql: string) {
|
|
let cached = this.cachedStatements.get(sql);
|
|
|
|
if (!cached) {
|
|
const stmt = this.db.prepare(sql);
|
|
this.cachedStatements.set(sql, stmt);
|
|
cached = stmt;
|
|
}
|
|
return cached;
|
|
}
|
|
|
|
private finalizeStatements() {
|
|
for (const stmt of this.cachedStatements.values()) {
|
|
stmt.finalize();
|
|
}
|
|
}
|
|
}
|