Class: ActiveFacts::Metamodel::LinkFactType

Inherits:
FactType
  • Object
show all
Defined in:
lib/activefacts/metamodel/metamodel.rb,
lib/activefacts/metamodel/extensions.rb

Instance Attribute Summary

Attributes inherited from FactType

#check_and_add_spanning_uniqueness_constraint

Instance Method Summary collapse

Methods inherited from FactType

#all_reading_by_ordinal, #all_role_in_order, #compatible_readings, #default_reading, #describe, #internal_presence_constraints, #is_existential, #is_unary, #preferred_reading, #reading_preferably_starting_with_role

Instance Method Details

#all_reading ⇒ Object 



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# File 'lib/activefacts/metamodel/extensions.rb', line 1383

def all_reading
  if super.size == 0
    # No user-defined readings have been defined, so it's time to stop being lazy:
    objectification_role, mirror_role = *all_role_in_order

    preferred_role_ref = mirror_role.base_role.preferred_reference

    rs = constellation.RoleSequence(:new)
    rr0 = constellation.RoleRef(rs, 0, :role => objectification_role)
    rr1 = constellation.RoleRef(rs, 1, :role => mirror_role)

    rr1.leading_adjective = preferred_role_ref.leading_adjective
    rr1.trailing_adjective = preferred_role_ref.trailing_adjective

    r0 = constellation.Reading(self, 0, :role_sequence => rs, :text => "{0} involves {1}", :is_negative => false)  # REVISIT: This assumes English!
    r1 = constellation.Reading(self, 1, :role_sequence => rs, :text => "{1} is involved in {0}", :is_negative => false)
  end
  @all_reading
end

#objectification_role ⇒ Object 



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# File 'lib/activefacts/metamodel/extensions.rb', line 1403

def objectification_role
  (all_role.to_a-[implying_role.mirror_role_as_base_role])[0]
end