Streama (Specification of Activities)

gistfile1.rb

# Is it possible with the current streama DSL to explicitly say that the verb is not the identifier?
activity :created_event do
  actor  :user, :cache => [:username, :slug]
  verb   :post
  object :event, :cache => [:name, :acronym, :slug]
end

# The combination of actor, verb, object (and target) has implicit and unique representation of the activity
# => maybe the identifier can be ommitted?
activity do
  actor  :user, :cache => [:username, :slug]
  verb   :post
  object :event, :cache => [:name, :acronym, :slug]
end

# And when we are changing the DSL we could make the actor optional
# and give it globally a default
activity.defaults do
  actor :user, :cache => [:username, :slug]
end

# Implicit identifier and default actor:
activity do
  verb :post
  object :event, :cache => [:name, :acronym, :slug]
end
# => :user, :post and :event is unique representation of the activity
# => :post_event could be the implicit identifier which is the same as :user_post_event (user is default).

# Giving explicit actors should still be possible:
activity do
  actor :organizer, :cache [:forename, :surname]
  verb :update
  target :call_for_papers
end
# => :organizer_update_call_for_papers is implicit identifier

# Giving explicit identifiers should still be possible:
activity :custom_identifier do
  verb :post
  object :event
end
# => :custom_identifier is explicit identifier