[[ MAJOR ]] Perma Questions

[coilysiren]

Work

• Sessions
  • [ ] write question model data to session on the first PageManager request
• Questions
  • [ ] remove question downcasting
  • [ ] enable question polymorphism via booleans / case switches
  • [ ] have the new style polymorphism reflected on admin
  • [ ] resolve questions down to a single Question model
• Manager
  • [ ] read questions from session data if they exist there, as opposed to from the db
  • [ ] allow downstream repos to attach data to serialized questions
• Stability
  • [ ] create form flow smoke tests, to ensure created question data is valid in production systems

Impact

• will enable questions to be edited without impacting users who have already started answering those questions
• will remove the primary source of performance issues (downcasting is very expansive)
• will remove the primary source of production errors (managing the different question types is a primary source of production issues)

Timeline

• estimated at 2 months
• deadline Q4 2017

Dependents

• requires https://github.com/SexualHealthInnovations/django-wizard-builder/issues/141, https://github.com/SexualHealthInnovations/django-wizard-builder/issues/147, https://github.com/SexualHealthInnovations/django-wizard-builder/issues/150

Side Effects

• downstream repos will need to change their Question data post migration
• callisto-core's eval system will need to change the way it integrates with questions
• dramatically increases the negative effect of poorly configured questions

[coilysiren]

Half of this was addressed by https://github.com/project-callisto/django-wizard-builder/pull/192

[coilysiren]

the other half by https://github.com/project-callisto/django-wizard-builder/pull/200

closing pre-emptively!