Class: ActiveFacts::Metamodel::PresenceConstraint
- Inherits:
-
Constraint
- Object
- Constraint
- ActiveFacts::Metamodel::PresenceConstraint
- Defined in:
- lib/activefacts/vocabulary/metamodel.rb,
lib/activefacts/vocabulary/extensions.rb
Instance Method Summary collapse
Instance Method Details
#describe ⇒ Object
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# File 'lib/activefacts/vocabulary/extensions.rb', line 695 def describe min = min_frequency max = max_frequency role_sequence.describe + " occurs " + frequency + " time#{(min&&min>1)||(max&&max>1) ? 's' : ''}" end |
#frequency ⇒ Object
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# File 'lib/activefacts/vocabulary/extensions.rb', line 685 def frequency min = min_frequency max = max_frequency [ ((min && min > 0 && min != max) ? "at least #{min == 1 ? "one" : min.to_s}" : nil), ((max && min != max) ? "at most #{max == 1 ? "one" : max.to_s}" : nil), ((max && min == max) ? "#{max == 1 ? "one" : "exactly "+max.to_s}" : nil) ].compact * " and " end |