Contextualize

[goosys]

Issue

• Add context to Page thoughtbot/administrate#2457

Tasks

• Page, Dashboard, and Field contextualization
  • Page
    • Allows for conditional validation and similar logic
  • Dashboard
    • Enables dynamic FORM_ATTRIBUTES based on the user
  • Field
    • Allows dropdowns and other elements to be dynamic
• Customizable validation contexts to ApplicationController
  • Example: resource.save(context: validation_contexts_on_create)