Add functions to fetch questionnaire content and its attributes 📋

[arthur-shaw]

Ideas

Get question details

• Get question's type
• Get question's scope
• Get multi-select answer options (for a given translation language)
• Get question's question text (e.g., if only label appears in dset)

Get questionnaire details

• Get identifying questions (for a given questionnaire)
• Get questions of scope X

Documentation

• Create section in reference index page
• Write vignette on working with questionnaire content

Execute custom queries

This would require the end user to compose a valid GraphQL query and provide it as a character string to the query client. The user would then be responsible for processing the result.

Background

There are two GraphQL "interfaces" for gettting this type of information:

1. questionnaires(...): Entity

2. questionnaireItem(...) [QuestionnaireItem]

There is overlap between the two interfaces. Need to explore whether one is better than the other or the two offer different interfaces for different entities.