SHP download breaks when there are empty geometries

[oliverroick]

Steps to reproduce the error

1. Create a project that contains empty geometries (you can import data from import-2-questionnaire.zip
2. Download data; select "SHP" or "All Data"

Actual behavior

Server error is thrown; see the corresponding log on Opbeat for more details.

Expected behavior

Data should be downloaded.

[dpalomino]

Also related to #1113 .

AFAIK, there are no projects with empty geometries yet, but as we will allow them through imports as discussed in #1254, so I think we need to fix this (although not super urgent).

[Sanny26]

I'm trying to reproduce this error. When I try to import a file in zip, it throws a tuple index out of range error and a warning on select import field page(step 2)

Am I doing anything wrong?

[oliverroick]

@Sanny26 Have you loaded the questionnaire in the Zip first and then tried to import the data?

[dpalomino]

To be addressed in Sprint 17