Previously, querying by polymorphic joins `relationTo` with
`overrideAccess: false` caused an error:
```
QueryError: The following paths cannot be queried: relationTo
```
As this field actually doesn't exist in the schema. Now, under condition
that the query comes from a polymorphic join we skip checking
`relationTo` field access.
This feature allows you to specify `collection` for the join field as
array.
This can be useful for example to describe relationship linking like
this:
```ts
{
slug: 'folders',
fields: [
{
type: 'join',
on: 'folder',
collection: ['files', 'documents', 'folders'],
name: 'children',
},
{
type: 'relationship',
relationTo: 'folders',
name: 'folder',
},
],
},
{
slug: 'files',
upload: true,
fields: [
{
type: 'relationship',
relationTo: 'folders',
name: 'folder',
},
],
},
{
slug: 'documents',
fields: [
{
type: 'relationship',
relationTo: 'folders',
name: 'folder',
},
],
},
```
Documents and files can be placed to folders and folders themselves can
be nested to other folders (root folders just have `folder` as `null`).
Output type of `Folder`:
```ts
export interface Folder {
id: string;
children?: {
docs?:
| (
| {
relationTo?: 'files';
value: string | File;
}
| {
relationTo?: 'documents';
value: string | Document;
}
| {
relationTo?: 'folders';
value: string | Folder;
}
)[]
| null;
hasNextPage?: boolean | null;
} | null;
folder?: (string | null) | Folder;
updatedAt: string;
createdAt: string;
}
```
While you could instead have many join fields (for example
`childrenFolders`, `childrenFiles`) etc - this doesn't allow you to
sort/filter and paginate things across many collections, which isn't
trivial. With SQL we use `UNION ALL` query to achieve that.
---------
Co-authored-by: Dan Ribbens <dan.ribbens@gmail.com>
### What?
This PR fixes an issue where the `join` field table was not respecting
the locale selected in the admin ui localizer.
This also introduces an e2e test to the existing suite to catch this
issue.
### Why?
To properly render `join` field table data according to chosen and
configured locales.
### How?
Threading `req.locale` through to the `payload.find` call in
`buildTableState`.
Fixes#11134
Before:
[Editing---Category--join-locales-before-Payload.webm](https://github.com/user-attachments/assets/d77b71bb-f849-4be2-aa96-26dbfedb52d4)
After:
[Editing---Category--join-locales-after-Payload.webm](https://github.com/user-attachments/assets/0d1f7351-adf4-4bad-ac82-0fee67f8b66a)
Allows to set `maxDepth: 0` for join fields and improves JSDoc about
`maxDepth`, adds tests to confirm that
https://github.com/payloadcms/payload/issues/10243 is not an issue, but
just happens because the default `maxDepth` is `1`.
### What?
With Postgres, before join to self like:
```ts
import type { CollectionConfig } from 'payload'
export const SelfJoins: CollectionConfig = {
slug: 'self-joins',
fields: [
{
name: 'rel',
type: 'relationship',
relationTo: 'self-joins',
},
{
name: 'joins',
type: 'join',
on: 'rel',
collection: 'self-joins',
},
],
}
```
wasn't possible, even though it's a valid usage.
### How?
Now, to differentiate parent `self_joins` and children `self_joins` we
do additional alias for the nested select -
`"4d3cf2b6_1adf_46a8_b6d2_3e1c3809d737"`:
```sql
select
"id",
"rel_id",
"updated_at",
"created_at",
(
select
coalesce(
json_agg(
json_build_object('id', "joins_alias".id)
),
'[]' :: json
)
from
(
select
"created_at",
"rel_id",
"id"
from
"self_joins" "4d3cf2b6_1adf_46a8_b6d2_3e1c3809d737"
where
"4d3cf2b6_1adf_46a8_b6d2_3e1c3809d737"."rel_id" = "self_joins"."id"
order by
"4d3cf2b6_1adf_46a8_b6d2_3e1c3809d737"."created_at" desc
limit
$1
) "joins_alias"
) as "joins_alias"
from
"self_joins"
where
"self_joins"."id" = $2
order by
"self_joins"."created_at" desc
limit
$3
```
Fixes https://github.com/payloadcms/payload/issues/10144
-->
`relationTo` was specified incorrectly which led to
```
● Joins Field › rEST API should not populate individual join by providing schemaPath=false
error: insert or update on table "collection_restricted" violates foreign key constraint "collection_restricted_category_id_restricted_categories_id_fk"
18 | .returning()
19 | } else {
> 20 | result = await (db as TransactionPg).insert(table).values(values).returning()
```
- [fix: join field shows loading when creating a
document](9f7a2e7936)
- [fix: join field
descriptions](90e8cdb464)
- [feat(ui): adds before & after inputs to join
field](19d43329ad)
---------
Co-authored-by: Patrik <patrik@payloadcms.com>
When using the `admin.hidden: true` property on a collection, it
rightfully removes all navigation and routing for that particular
collection. However, this also affects the expected behavior of hidden
entities when they are rendered within a drawer, such as the document
drawer or list drawer. For example, when creating a new _admin.hidden_
document through the relationship or join field, the drawer should still
render the view, despite the underlying route for that view being
disabled. This change was a result of the introduction of on-demand
server components in #8364, where we now make a server roundtrip to
render the view in its entirety, which include the logic that redirects
these hidden entities.
Now, we pass a new `overrideEntityVisibility` argument through the
server function that, when true, skips this step. This way documents can
continue to respect `admin.hidden` while also having the ability to
override on a case-by-case basis throughout the UI.
### What?
Makes it possible to filter join documents using a `where` added
directly in the config.
### Why?
It makes the join field more powerful for adding contextual meaning to
the documents being returned. For example, maybe you have a
`requiresAction` field that you set and you can have a join that
automatically filters the documents to those that need attention.
### How?
In the database adapter, we merge the requested `where` to the `where`
defined on the field.
On the frontend the results are filtered using the `filterOptions`
property in the component.
Fixes
https://github.com/payloadcms/payload/discussions/8936https://github.com/payloadcms/payload/discussions/8937
---------
Co-authored-by: Sasha <64744993+r1tsuu@users.noreply.github.com>
### What?
Properly specifies `$lookup.from` when the collection name is singular.
### Why?
MongoDB can pluralize the collection name and so can be different for
singular ones.
### How?
Uses the collection name from the driver directly
`adapter.collections[slug].collection.name` instead of just `slug`.
## Description
- Adds a new "join" field type to Payload and is supported by all database adapters
- The UI uses a table view for the new field
- `db-mongodb` changes relationships to be stored as ObjectIDs instead of strings (for now querying works using both types internally to the DB so no data migration should be necessary unless you're querying directly, see breaking changes for details
- Adds a reusable traverseFields utility to Payload to make it easier to work with nested fields, used internally and for plugin maintainers
```ts
export const Categories: CollectionConfig = {
slug: 'categories',
fields: [
{
name: 'relatedPosts',
type: 'join',
collection: 'posts',
on: 'category',
}
]
}
```
BREAKING CHANGES:
All mongodb relationship and upload values will be stored as MongoDB ObjectIDs instead of strings going forward. If you have existing data and you are querying data directly, outside of Payload's APIs, you get different results. For example, a `contains` query will no longer works given a partial ID of a relationship since the ObjectID requires the whole identifier to work.
---------
Co-authored-by: Jacob Fletcher <jacobsfletch@gmail.com>
Co-authored-by: James <james@trbl.design>
