Entity Attributes Data Model Part 1

[wonderchook]

Summary

This issue covers only the initial setup of the django-jsonattrs module. See #255 for the rest.

Adapt existing or implement new Django application for dynamic attribute management

Links to requirements and functional testing script

Requirements

Acceptance criteria

• Entity Attributes Data Model exists
• 100% Test Coverage
• Tests Pass
• Property Documented [NOT DONE]
• Reviewed by Oliver [NOT DONE]

Task list (including tests)

• Review existing Django "dynamic model" packages
• Initial design
• Set up new django-jsonattrs project
• Tests: fixtures
• Example app: basic models, forms, views
• Schema and schema selector models
• Tests: schema and schema selector models
• Example app: schema management
• Field definition model
• Tests: field definition model
• Example app: field management
• JSON attributes field class
• Utility functions: get schema from field, get attributes from field
• Tests: more fixtures (schema definitions)
• Tests: utility functions
• Example app: schema view from domain entities
• Tests: JSON attributes field class
• Form generation
• Tests: form generation
• Example app: form generation
• Form validation
• Test: form validation
• Example app: form validation

[ian-ross]

There's probably more to be done on form validation here as well, but it roughly works. I'll do more on this when I come to incorporate attributes display and management into the platform code.

[ian-ross]

This gets the entity attribute modelling into a state where @bjohare can do the attribute schema setup and where I can start incorporating attributes into the front end (see #255).