[BUG] Hub Central error while mapping secondary entity with structure

[dmcassel]

The issue

Please provide reproducible steps for the issue and a description of what behavior you expected instead.

I have a set of JSON documents in my staging database that are derived from CSV data -- the documents are flat. I have two entities that I'm trying to populate from the same set of documents (as described in the "Mapping to multiple related entities" of this page). If I set up separate mapping steps for each of them, I'm able to configure the mapping for both entities. The second entity has a structure (Address) as one of its properties. If I try to map the secondary entity from the primary entity, I'm unable to populate the Address structure. The problem is trying to set the Context for the structure. If I use "/" or ".", I get "Node has complex type with non-mixed complex content". If I leave the Context blank, the error goes away, but I get no values in the structure, even if I provide a literal value.

The steps to reproduce the issue (use as many numbered steps as you need):

1. Define two entities (Book, Publisher). Give the second entity a structure property (Address). Create a relationship from the primary (Book) to the secondary (Publisher). Specify a foreign key.
2. Create a flat sample doc that has data for both entities. Load the sample doc using an ingestion step.
3. Create a standard mapping step for Book. Map the book properties, then specify the secondary (Publisher) in the "Map related entities" box. You'll be able to map top-level Publisher properties, but not the Address.

What behavior were you expecting?

Technical details

Please provide the following version information:

• Operating System = linux
• MarkLogic = 10.0-9.4
• Data Hub = 5.7.2

If this is a Hub Central or QuickStart issue, please provide the browser version too:

Chrome Version 104.0.5112.102 (Official Build) (64-bit)

Workaround

Create separate mapping steps and run them sequentially.