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rails validation array

Houssam Chakir answered on September 8, 2022 Popularity 6/10 Helpfulness 6/10

answer rails validation array

related how to validate array field in rails

rails validation array

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validates :wdays, inclusion: { in: [0, 1, 2, 3, 4, 5, 6] }

Popularity 6/10 Helpfulness 6/10 Language ruby

Source: stackoverflow.com

Tags: ruby validation

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Contributed on Sep 08 2022

Houssam Chakir

0 Answers Avg Quality 2/10

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how to validate array field in rails

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# Define the validator
# app/validators/array_validator.rb

class ArrayValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, values)
    Array(values).each do |value|
      options.each do |key, args|
        validator_options = { attributes: attribute }
        validator_options.merge!(args) if args.is_a?(Hash)

        next if value.nil? && validator_options[:allow_nil]
        next if value.blank? && validator_options[:allow_blank]

        validator_class_name = "#{key.to_s.camelize}Validator"
        validator_class = begin
          validator_class_name.constantize
        rescue NameError
          "ActiveModel::Validations::#{validator_class_name}".constantize
        end

        validator = validator_class.new(validator_options)
        validator.validate_each(record, attribute, value)
      end
    end
  end
end

# Include it in a model
class Article
  validates :tags, presence: true, array: { inclusion: { in: %w(ruby rails) } }
end

Popularity 5/10 Helpfulness 2/10 Language ruby

Source: gist.github.com

Tags: field ruby

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Contributed on Apr 14 2023

ammarvellous

0 Answers Avg Quality 2/10

rails validation array

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how to validate array field in rails

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