Variables with a period are not added to data to be sent in the JSON dump registration plugin

[viktorvanwijk]

A textfield (or even user defined variable) with key foo.bar will be present in submission data as:

{
  "foo": {
    "bar": "baz"
  }
}

When selecting this variable in the options for the JSON dump registration plugin, it will show up as foo.bar. Currently, we iterate over all items in the submitted data, which will contain the key foo as it is a nested structure. Key foo will not be present in the list of variables to include, so it is not added.

See also: comment

[viktorvanwijk]

Possible solutions in JSONDumpRegistration.register_submission():

• Re-implement items() for FormioData to return the flat-key structure instead of the nested one (not sure if this is the general behaviour we want though)
• Process the keys in options["variables"] to represent the nested data structure
• Iterate over keys in options["variables"] instead of the FormioData.items(), as the lookup in the other direction does work. Probably the easiest, but it goes against the original philosophy of iterating over all available form variables.

[joeribekker]

Refinement: Form field property name foo.bar will lead to a key in the JSON with the name foo.bar.