How to use Context and Reference?

Hello @maretval,

We want to use the Context and Reference fields in the kreport. But we do not know how to use them.

Our requirement is that we want to display week value equal to zero when we do not have any reporting data. We are using OR in the select clause and then added the new filter under the root.

Please guide us!

Context is meant to be used in charts.
Reference is meant to be used in unions.
What do want to report on?