method
validation_needed?

v7.1.3.2 -
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Class: ActiveRecord::Validations::UniquenessValidator
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validation_needed?(klass, record, attribute)
private
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# File activerecord/lib/active_record/validations/uniqueness.rb, line 69 def validation_needed?(klass, record, attribute) return true if options[:conditions] || options.key?(:case_sensitive) scope = Array(options[:scope]) attributes = scope + [attribute] attributes = resolve_attributes(record, attributes) return true if attributes.any? { |attr| record.attribute_changed?(attr) || record.read_attribute(attr).nil? } !covered_by_unique_index?(klass, record, attribute, scope) end