Duplicate file from collection to collection

quornik

12 months ago

1 1

I'm trying to grasp around the idea of hooks.

PROBLEM

I need to create a hook that allows Admin to duplicate file after it has been reviewed to another collection, and delate the one he has reviewed.
Is there a tutorial or documentation on how to e.g. execute the CREATE operation on another collection with the use of data from currently edited file?

IDEA

And Is there a way to execute PUT, DELATE, FIND and other operations directly on Mongo with FETCH, inside hook?
Would appiciate some discussion or help.

Selected Answer

denolfe

Payload Team

12 months ago

Hey @quornik, this is definitely possible by combining the use of a beforeChange hook and the local API operations.

Here is an example of how it can be done:

import { CollectionBeforeChangeHook, CollectionConfig } from 'payload/types'

const performOperationIfReviewed: CollectionBeforeChangeHook = async ({
  data, // incoming data to update or create with
  req, // full express request
  operation, // name of the operation ie. 'create', 'update'
  originalDoc, // original document
}) => {
  if (
    req?.user?.collection === 'admins' && // Admins collection only
    operation === 'update' && // Only on update operations
    !originalDoc.reviewed && data.reviewed // Transitioning from not reviewed to reviewed
  ) {
    await req.payload.create({
      collection: 'collection-after-reviewed',
      data,
    })
  }
}

export const Pages: CollectionConfig = {
  slug: 'pages',
  hooks: {
    beforeChange: [performOperationIfReviewed],
  },
  fields: [
    {
      name: 'reviewFile',
      type: 'relationship',
      relationTo: 'media',
    },
    {
      name: 'reviewed',
      type: 'checkbox',
    }
  ],
}

Hopefully, that gets you going in the right direction. Let me know if you have any additional questions 👍

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