Parent-child relationship of documents

[Manik Magar]

I am trying to use Selection component to add dropdowns that should list all documents of certain document types. For example, I am creating a new Document Type 'Category'. Now on category, I want to a dropdown field 'Parent Category' that which will list all existing categories. How to make Dropdown populate all documents? Thanks.

[Jeroen Hoffman]

Hi,
The idea here is to
- create a CMS service that implements "org.onehippo.forge.selection.frontend.provider.IValueListProvider" and does a
JCR query for those category documents
- configure that service besides /hippo:configuration/hippo:frontend/cms/cms-services/DocumentValueListProvider, giving
it a custom id in valuelist.provider property
- reference it in your document field at
/hippo:namespaces/yournamespace/yourdocumenteditor:templates/_default_/yourfield/cluster.options/valuelistProvider

The valuelistProvider it also mentioned at https://www.onehippo.org/library/concepts/plugins/selections/configuration.html
For inspiration, you can have a look at org.onehippo.forge.selectiondemo.provider.CustomValueListProvider in the demo in
our code base at https://code.onehippo.org/cms-community/hippo-plugin-selections

HTH!
Jeroen

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[Manik Magar]

Thank you Jeroen. I am new to Hippo CMS and evaluation it. I will give it a try. Is there a reason, there is not a generic list provider in the selection plugin that allows to set the document type to pull documents? It seems to be a very a common use case.

Regards,

Manik.