### What?
Fixes CSV export support for polymorphic relationship and upload fields.
### Why?
Polymorphic fields in Payload use a `{ relationTo, value }` structure.
The previous implementation incorrectly accessed `.id` directly on the
top-level object, which caused issues depending on query depth or data
shape. This led to missing or invalid values in exported CSVs.
### How?
- Updated getCustomFieldFunctions to safely access relationTo and
value.id from polymorphic fields
- Ensured `hasMany` polymorphic fields export each related ID and
relationTo as separate CSV columns
Adds new plugin-import-export initial version.
Allows for direct download and creation of downloadable collection data
stored to a json or csv uses the access control of the user creating the
request to make the file.
config options:
```ts
/**
* Collections to include the Import/Export controls in
* Defaults to all collections
*/
collections?: string[]
/**
* Enable to force the export to run synchronously
*/
disableJobsQueue?: boolean
/**
* This function takes the default export collection configured in the plugin and allows you to override it by modifying and returning it
* @param collection
* @returns collection
*/
overrideExportCollection?: (collection: CollectionOverride) => CollectionOverride
// payload.config.ts:
plugins: [
importExportPlugin({
collections: ['pages', 'users'],
overrideExportCollection: (collection) => {
collection.admin.group = 'System'
collection.upload.staticDir = path.resolve(dirname, 'uploads')
return collection
},
disableJobsQueue: true,
}),
],
```
---------
Co-authored-by: Jessica Chowdhury <jessica@trbl.design>
Co-authored-by: Kendell Joseph <kendelljoseph@gmail.com>
