Arvados

Does an array contain a single data type such as a string or an int or another array of type x etc? Or does one array can contain multiple types? If so how is it used (example)?

http://www.commonwl.org/draft-3/UserGuide.html#Array_inputs

http://www.commonwl.org/draft-3/CommandLineTool.html#CommandInputRecordSchema

During yesterday's grooming meeting, we agreed that we will support arrays containing single item types or other arrays (which in turn will contain single item types) to start with.

Radhika Chippada wrote:

• Support arrays with single item types such as string, int, array etc
  • Support item types boolean, int, long, float, double, string, File, Directory

• Adding input items: for each array type input:
  • Present a "Add new item" button
  • When this button is pressed, add an input field of appropriate type such as text field or collection file chooser etc (see the "CWL array input - mockup")

• When displaying a previously saved CR:
  • Add required number of items of type and pre-populate them with the data in the CR

• Clearing previous data
  • When text in a populated input item is cleared, remove it from the array during save

Maybe have a an [X] or trash button to delete array entries?

• Do we need to support any other types other than boolean, int, long, float, double, string, File, Directory?

We're not doing complex types (nested arrays/records) for this ticket, so no.

• Question: The CWLType at http://www.commonwl.org/draft-3/CommandLineTool.html#Expression does not include Directory. Does this need to be updated?

You're looking at the wrong spec version. The right one is here: http://www.commonwl.org/v1.0/CommandLineTool.html#CWLType