class J2119::OnlyOneOfConstraint
Verify that there is only one of a selection of fields
Public Class Methods
new(fields)
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Calls superclass method
J2119::Constraint::new
# File lib/j2119/constraints.rb, line 42 def initialize(fields) super() @fields = fields end
Public Instance Methods
check(node, path, problems)
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# File lib/j2119/constraints.rb, line 47 def check(node, path, problems) if (@fields & node.keys).size > 1 problems << "#{path} may have only one of #{@fields}" end end