Lifecycle hooks can't access previous values of components

[kmertozen]

Bug report

Required System information

• Node.js version: 18
• NPM version: 8.19.4
• Strapi version: 4.8.1
• Database: mysql

Describe the bug

I can't access the previous data of the component in collections when using lifecycle hooks

[derrickmehaffy]

This is intended due to the layer at which lifecycles function and will not be addressed in v4, we have added a new layer in v5 where this is possible.

[kmertozen]

how can i do that in v5?

[derrickmehaffy]

DocumentService Middlewares instead of lifecycles.

[derrickmehaffy]

https://docs-next.strapi.io/dev-docs/api/document-service/middlewares

[dmnkvd]

Could you please provide an example on how to access the previous value of a property before update, using the middlewares approach? I have been attempting to write it out, unsuccessfully.

[strapi-bot]

This issue has been mentioned on Strapi Community Forum. There might be relevant details there:

https://forum.strapi.io/t/how-to-track-changes-to-specific-fields-strapi-lifecycle-hooks-and-middleware-events/50851/1