Schema: Provide schema-driven metadata query builder
This is for a new "search wizard" that will make it easier for users to created metadata search expression through a schema-guided, form-based interface. This wizard will be made available for the data search features in the catalog and "my data".
The current implementation is somewhat broken in that it flattens-out the schema for ease of processing; however, information is lost in the process. It also does not handle arrays or multiple value types.
This issue is partly implemented, but much more work is needed to make the query builder fully functional and user friendly. It doesn't yet allow editing user typed expressions, and the schema field selection is clunky. This issue will remain open, but the current implementation will be released in the next DataFed version.