Validate end dates are after start dates

[Mick Zijdel]

Date validations are not built-in, but there is probably a gem for that.

[Hayden Ball]

You probably don’t need a gem - a validation function for this is fairly simple:

def ensure_start_date_before_end_date
  return unless start_date.present? && end_date.present?
  return if start_date < end_date

  errors.add(:base, :start_date_after_end_date)
end

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[Mick Zijdel]

That’s fair, but there would be multiple models who need that code and I am reluctant to share and maintain code if there already exists a date validation gem that can do all that for us