Hierarchical Attributes Support

1

Hi all, we are doing a Scripting Editor, based on Prosemirror. In order to keep some metadata around the Semantic Nodes, we thought of saving those in ProseMirror Attributes. So my questions:

Q1: Is that the normal approach for saving metadata in the ProseMirror document model?

Q2: Do ProseMirror Attributes support hierarchical JSON structures? i.e.

heading: { content: “text*”, attrs: { level: {default: 1}, some_custom_array : [ {“ArrayKey1” : “MyArrayVal1”}, {“ArrayKey1”: “MyArrayVal2”}], some_nested_value : {“Key1”: {“NestedKey1” : “MyNesterVal1”}} } }

2

Yes, storing additional data in attributes is what they are for. Attribute values may be anything that’s JSON-serializeable (to make sure toJSON/fromJSON continue to work on the nodes).

3

Hi Marijn,

great! Thank you very much. We will use attributes, then, to store our metadata…

4

Hi Marijn,

we started using the Attrs with hierarchical json and it does work very nice! The PM engine is just great and a really nicely designed thing! We are inspired by it :slight_smile: