Hidden visits

[aghaynes]

It has just come to my attention that visits/observations can be hidden in SecuTrial (as well as items senso #172). To the best of my knowledge we do not handle them at all at the moment. Maybe we should do something about them, or have a function to remove them perhaps?
I'm currently waiting on info as to how to identify these visits/observations...

[PatrickRWright]

So hidden variables can be identified with the return_hidden_items() function. If hidden data is part of the export that is also tracked in the export_options$hidden_fields. i.e. you can choose not to export it in the ExportSearchTool.

I think the same logic holds for forms but I didn't implement a function to return them.

[aghaynes]

Having played around a little with a DM, it looks like the "show hidden fields" button controls both hidden variables and visits/observations. Maybe it's worth producing a warning if that option is checked (the data probably shouldn't be used...)

[PatrickRWright]

Probably check_export_options() is the right place.