Module: Sequel::Plugins::Typero::InstanceMethods

Defined in:
lib/adapters/sequel.rb

Instance Method Summary collapse

Instance Method Details

#validate ⇒ Object

calling typero! on any object will validate all fields



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# File 'lib/adapters/sequel.rb', line 20

def validate
  super

  # Typero schema check
  if schema = Typero.schema?(self.class)
    schema.validate(self) do |name, err|
      errors.add(name, err) unless (errors.on(name) || []).include?(err)
    end

    # this are rules unique to database, so we check them here
    schema.rules.each do |field, rule|
      # check uniqe fields
      if unique = rule.dig(:meta, :unique)
        id    = self[:id] || 0
        value = self[field]

        # we only check if field is changed
        if value.present? && column_changed?(field) && self.class.xwhere("LOWER(%s)=LOWER(?) and #{respond_to?(:ref) ? :ref : :id}::text<>?" % [field], value, id.to_s).first
          error = unique.class == TrueClass ? %[Value "#{value}" for field "#{field}" has been already used, please chose another value.] : unique
          errors.add(field, error) unless (errors.on(field) || []).include?(error)
        end
      end

      # check protected fields
      if (prot = rule.dig(:meta, :protected)) && self[:id]
        if column_changed?(field)
          error = prot.class == TrueClass ? "value once defined can't be overwritten." : prot
          errors.add(field, error) unless (errors.on(field) || []).include?(error)
        end
      end
    end
  end
end