tldraw/packages/tlschema
alex 1927f88041
mini defineShape API (#1563)
Based on #1549, but with a lot of code-structure related changes backed
out. Shape schemas are still defined in tlschemas with this diff.

Couple differences between this and #1549:
- This tightens up the relationship between store schemas and editor
schemas a bit
- Reduces the number of places we need to remember to include core
shapes
- Only `<TLdrawEditor />` sets default shapes by default. If you're
doing something funky with lower-level APIs, you need to specify
`defaultShapes` manually
- Replaces `validator` with `props` for shapes

### Change Type

- [x] `major` — Breaking Change

### Test Plan

1. Add a step-by-step description of how to test your PR here.
2.

- [x] Unit Tests
- [ ] Webdriver tests

### Release Notes

[dev-facing, notes to come]
2023-06-12 14:04:14 +00:00
..
src mini defineShape API (#1563) 2023-06-12 14:04:14 +00:00
api-extractor.json transfer-out: transfer out 2023-04-25 12:01:25 +01:00
api-report.md mini defineShape API (#1563) 2023-06-12 14:04:14 +00:00
CHANGELOG.md transfer-out: transfer out 2023-04-25 12:01:25 +01:00
LICENSE transfer-out: transfer out 2023-04-25 12:01:25 +01:00
package.json update lazyrepo 2023-06-05 18:32:32 +01:00
README.md TLSchema readme (#1506) 2023-06-03 08:24:58 +00:00
tsconfig.json Rename tlstore to store (#1507) 2023-06-03 08:59:04 +00:00

@tldraw/tlschema

This package houses type definitions, schema migrations, and other type metadata for the tldraw editor's default persisted data.

There are three main kinds of types:

  • Record types

    These are root record types added to the Store class. They are defined in the ./src/records directory.

  • Shape types

    These are subtypes of the root TLShape record type. They allow specifying a unique name and custom props for a particular kind of shape.

  • Asset types

    These are subtypes of the root TLAsset record type. They allow specifying a unique name and custom props for a particular kind of asset.

Adding migrations

If you make any kind of change to any persisted data shape in this package, you must add migrations that are able to convert old versions to new versions, and vice-versa.

If you are making a change that affects the structure of a record, shape, or asset, update the migrations in the same file as the record, shape, or asset is defined.

If you are making a change that affects the structure of the store (e.g. renaming or deleting a type, consolidating two shape types into one, etc), add your changes in the migrations in schema.ts.

After making your changes, add a new version number, using a meaninful name. For example, if you add a new property to the TLShape type called ownerId that points to a user, you might do this:

In TLShape.ts

 const Versions = {
   RemoveSomeProp: 1,
+  AddOwnerId: 2,
 } as const

and then in the TLShape type

   x: number
   y: number
+  ownerId: ID<TLUser> | null
   props: Props
   parentId: ID<TLShape> | ID<TLPage>

and then adding a migration:

 export const shapeTypeMigrations = defineMigrations({
   currentVersion: Versions.Initial,
   firstVersion: Versions.Initial,
   migrators: {
+    [Versions.AddOwnerId]: {
+      // add ownerId property
+      up: (shape) => ({...shape, ownerId: null}),
+      // remove ownerId property
+      down: ({ownerId, ...shape}) => shape,
+    }
   },

After you've added your migration, make sure to add a test for it in src/migrations.test.ts. It will complain if you do not!

License

The source code in this repository (as well as our 2.0+ distributions and releases) are currently licensed under Apache-2.0. These licenses are subject to change in our upcoming 2.0 release. If you are planning to use tldraw in a commercial product, please reach out at hello@tldraw.com.