Module: JSONORM::Validations

Included in:
BaseModel
Defined in:
lib/json-orm/validations.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/json-orm/validations.rb', line 5

def self.included(base)
  base.extend(ClassMethods)
end

Instance Method Details

#validate! ⇒ Object 



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# File 'lib/json-orm/validations.rb', line 21

def validate!
  self.class.validators.each do |attribute, validators|
    validators.each do |validator|
      value = send(attribute)
      case validator[:type]
      when :presence
        raise "Validation failed: #{attribute} can't be blank" if value.nil? || value.to_s.empty?
      when :format
        regex = validator[:options][:with]
        raise "Validation failed: #{attribute} is invalid" unless value.match?(regex)
      when :numericality
        raise "Validation failed: #{attribute} is not a number" unless value.is_a?(Numeric)
      when :length
        min_length = validator[:options][:minimum] || 0
        max_length = validator[:options][:maximum] || Float::INFINITY
        actual_length = value.to_s.length
        if actual_length < min_length
          raise "Validation failed: #{attribute} is too short (minimum is #{min_length} characters)"
        elsif actual_length > max_length
          raise "Validation failed: #{attribute} is too long (maximum is #{max_length} characters)"
        end
      when :inclusion
        in_set = validator[:options][:in]
        raise "Validation failed: #{attribute} is not included in the list" unless in_set.include?(value)
      when :exclusion
        in_set = validator[:options][:in]
        raise "Validation failed: #{attribute} is reserved" if in_set.include?(value)
      when :custom
        custom_validation = validator[:options][:with]
        raise "Validation failed: #{attribute} is not valid" unless custom_validation.call(value)
      end
    end
  end
end