56 lines
1.2 KiB
TypeScript
56 lines
1.2 KiB
TypeScript
import { describe, expect, test } from "bun:test";
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import path from "path";
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import DAL from "@nesterow/dal/client/libdal";
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// in this case we need to use absolute path
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const DATABASE_PATH = path.join(import.meta.dir, "..", "data", "chinook.db");
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const db = new DAL({
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database: DATABASE_PATH,
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});
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describe("Query Interface", () => {
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test(".Join [album < artist < tracks (find tracks for all artists whose names start with 'A')]", async () => {
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class Album {
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TrackId = 0;
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TrackName = "";
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ArtistName = "";
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AlbumTitle = "";
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}
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const items = db
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.In("albums al")
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.Join(
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{
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$for: "artists ar",
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$do: {
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"al.ArtistId": "ar.ArtistId",
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},
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},
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{
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$for: "tracks tr",
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$do: {
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"al.AlbumId": "tr.AlbumId",
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},
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},
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)
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.Find({
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"ar.Name": { $glob: "A*" },
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})
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.Fields({
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"tr.TrackId" : "TrackId",
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"tr.Name" : "TrackName",
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"ar.Name" : "ArtistName",
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"al.Title" : "AlbumTitle",
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})
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.Limit(10)
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.As(Album)
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.Rows();
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for await (const item of items) {
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console.log(item);
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}
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expect(true).toBe(true);
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});
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});
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