class PGTrunk::DifferenceValidator

@private Ensure that an attribute is different from another one

Public Instance Methods

validate_each(record, attribute, value) click to toggle source
# File lib/pg_trunk/core/validators/difference_validator.rb, line 6
def validate_each(record, attribute, value)
  another_name = options.fetch(:from)
  another_value = record.send(another_name).presence

  case another_value
  when PGTrunk::QualifiedName
    return unless value.maybe_eq?(another_value)
  else
    return unless value == another_value
  end

  record.errors.add attribute, "must be different from the #{another_name}"
end