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module StripWhitespace
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extend ActiveSupport::Concern
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included do
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before_validation :strip_spaces
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end
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def strip_spaces
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self.changes.each do |column, values|
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# return string if RuntimeError: can't modify frozen String
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self.send(column).strip! if (values.last.kind_of?(String) && !skip_strip_attrs.include?(column)) rescue send(column)
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end
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end
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# default empty array - overwrite in each model for specific string fields that should not be .strip!
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def skip_strip_attrs
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[]
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end
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end
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