class ActiveFacts::Metamodel::PresenceConstraint
Public Instance Methods
all_constrained_role()
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# File lib/activefacts/metamodel/extensions.rb, line 1180 def all_constrained_role role_sequence.all_role_ref.map(&:role) end
covers_role(role)
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# File lib/activefacts/metamodel/extensions.rb, line 1176 def covers_role role role_sequence.all_role_ref.map(&:role).include?(role) end
describe()
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# File lib/activefacts/metamodel/extensions.rb, line 1170 def describe min = min_frequency max = max_frequency 'PresenceConstraint over '+role_sequence.describe + " occurs " + frequency + " time#{(min&&min>1)||(max&&max>1) ? 's' : ''}" end
frequency()
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# File lib/activefacts/metamodel/extensions.rb, line 1160 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