DEIMS: DE: breaks when no filters configured

[isangil]

What happens?

You are in a Data Explorer form, (node/%/data : where the nid corresponds to a configured data-source.)

Your admin exposed some variables but did not allow users to filter on ANY variable.

The DE form shows "columns you want to include", but in the "filters you'd like to add" there is a "no filters found". OK so far.

You check some columns, hit submit. DEIMS answers with error - The website encountered an unexpected error. Please try again later.

Easy workaround: Have your DEIMS admin configuring the at least one of this data-source variables to be a filter. (check the second checkbox in one variable). The query will work now, provided all the rest is well configured.

Where in code? Cannot trace it yet - tried to wrap the query object 'filters' addition with isset of !empty, but failed. Deserves more investigation.