Xata•8mo ago

Link to table

I need help in understanding link to table when creating a new schema for a table connecting to another table in the database. Kindly share resources or jump on a call with me to get a clearer picture.

6 Replies

kostas•8mo ago

Hello, links are xata's way of establishing one-to-one relationships between records. In case you are familiar with the term, the xata id of the linked record is used as a foreign key to establish a connection between the two records through the link field. It effectively provides the same result and capabilities as an SQL JOIN on the link column. You can find more information on the docs page here: https://xata.io/docs/concepts/data-model#links-and-relationships Many-to-many relationships can be established with a junction table, meaning that you'd create an extra dedicated table with two link columns, each record in that table representing a relationship between the two links. More details here: https://xata.io/docs/concepts/data-model#many-to-many-relationships-with-links

teriOP•7mo ago

Checking it now. Thanks, Kostas. Thanks, @kostas for the resource. I got it, and it worked.

teriOP•7mo ago

how can I get the ID from my linked trips table to be referenced in this code? @kostas @tsg

import { XataFile } from "@xata.io/client"; // Generated with CLI
import { getXataClient } from "./xata";
const xata = getXataClient();

const record = await xata.db.notes.create({
  name: "string",
  description: "longer text",
  rating: 3,
  trip: "rec_xyz",
  type: "string",
  img: XataFile.fromBase64("SGVsbG8gV29ybGQ="),
});
console.log(record);

import { XataFile } from "@xata.io/client"; // Generated with CLI
import { getXataClient } from "./xata";
const xata = getXataClient();

const record = await xata.db.notes.create({
  name: "string",
  description: "longer text",
  rating: 3,
  trip: "rec_xyz",
  type: "string",
  img: XataFile.fromBase64("SGVsbG8gV29ybGQ="),
});
console.log(record);

https://github.com/Terieyenike/track-trip-dashboard-with-xata-next/blob/main/utils/notes-data.js https://github.com/Terieyenike/track-trip-dashboard-with-xata-next/blob/main/app/(custom)/dashboard/note/create/page.js https://track-trip-dashboard-with-xata-next.vercel.app/dashboard/note/create

GitHub

track-trip-dashboard-with-xata-next/utils/notes-data.js at main · T...

Keep track of all your adventures, never forget the amazing memories. - Terieyenike/track-trip-dashboard-with-xata-next

GitHub

track-trip-dashboard-with-xata-next/app/(custom)/dashboard/note/cre...

Keep track of all your adventures, never forget the amazing memories. - Terieyenike/track-trip-dashboard-with-xata-next

Track your travel

Keep track of all your adventures, never forget the amazing memories

tsg•7mo ago

when you create the other record you get the ID back. Or you can query it and then you have it in the 'id' column. so for example, if you do:

const record = await xata.db.Users.create({
  email: '[email protected]',
  name: 'Keanu Reeves'
});

const record = await xata.db.Users.create({
  email: '[email protected]',
  name: 'Keanu Reeves'
});

you get back:

{
  "email": "[email protected]",
  "id": "rec_cd8rqcoavc42pi67lgd0",
  "name": "Keanu Reeves",
  "bio": NULL,
  "address": NULL,
}

{
  "email": "[email protected]",
  "id": "rec_cd8rqcoavc42pi67lgd0",
  "name": "Keanu Reeves",
  "bio": NULL,
  "address": NULL,
}

and the id is there. Does that make sense?

teriOP•7mo ago

I'll give it a shot and give you feedback. Thanks The excitement of fulfillment that I have gotten everything I have asked on this platform. It was a difficult one, but I overcame all the issues that came my way. The last thing to do is to put the finishing touch to the app and add one more feature to complete it. Thanks, @tsg and @kostas for guiding and giving me pointers.

tsg•7mo ago

thank you for the kind words, and I can't wait to see your app launched!

Gaming

Programming

Link to table