Validate a min and max value of an Integer

[samuil]

In the documentation it's not mentioned how to validate that an integer has a certain min or max value. It only mentions "validates_min_length" and "validates_max_length" which is for a String, right?

How to validate an Integer?

[Jeremy Evans]

On Tuesday, March 13, 2018 at 4:31:14 AM UTC-7, samuil wrote:

In the documentation it's not mentioned how to validate that an integer has a certain min or max value. It only mentions "validates_min_length" and "validates_max_length" which is for a String, right?

How to validate an Integer?

I assume this is a question for Sequel and not Roda, but "validates_includes min..max, column" should work for both a min and max value.  If you only have a min or a max, "validates_operator :>=, min, col" or "validates_operator :<=, max, col".

Thanks,

Jeremy

[samuil]

yes, for Sequel:

    class MyModel < Sequel::Model
      def validate
        super
        validates_operator(:>, 1, :var1)
        validates_operator(:>, 100, :var2)
      end
    end

And an error at runtime:

      NoMethodError: undefined method `validates_operator' for #<MyModel:0x00007ff25c12e818>

[Adam Daniels]

On Wednesday, March 14, 2018 at 10:05:06 AM UTC-4, samuil wrote:

yes, for Sequel:

    class MyModel < Sequel::Model
      def validate
        super
        validates_operator(:>, 1, :var1)
        validates_operator(:>, 100, :var2)
      end
    end

And an error at runtime:

      NoMethodError: undefined method `validates_operator' for #<MyModel:0x00007ff25c12e818>

You're missing the validation_helpers plugin.

class MyModel < Sequel::Model

  plugin :validation_helpers

  def validate

    super

    validates_operator :>, 1, :var1

    validates_operator :>, 100, :var2

  end

end