Module: Legion::API::Validators

Defined in:
lib/legion/api/validators.rb

Constant Summary collapse

UUID_PATTERN = 
/\A[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\z/i

Instance Method Summary collapse

Instance Method Details

#validate_enum!(value, field:, allowed:) ⇒ Object 



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# File 'lib/legion/api/validators.rb', line 21

def validate_enum!(value, field:, allowed:)
  return if value.nil?
  return if allowed.include?(value.to_s)

  halt 400, json_error('invalid_value', "#{field} must be one of: #{allowed.join(', ')}", status_code: 400)
end

#validate_integer!(value, field:, min: nil, max: nil) ⇒ Object 



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# File 'lib/legion/api/validators.rb', line 35

def validate_integer!(value, field:, min: nil, max: nil)
  return if value.nil?

  int_val = value.to_i
  halt 400, json_error('out_of_range', "#{field} must be >= #{min}", status_code: 400) if min && int_val < min
  halt 400, json_error('out_of_range', "#{field} must be <= #{max}", status_code: 400) if max && int_val > max
end

#validate_required!(body, *keys) ⇒ Object 



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# File 'lib/legion/api/validators.rb', line 8

def validate_required!(body, *keys)
  missing = keys.select { |k| body[k].nil? || (body[k].respond_to?(:empty?) && body[k].empty?) }
  return if missing.empty?

  halt 400, json_error('missing_fields', "required: #{missing.join(', ')}", status_code: 400)
end

#validate_string_length!(value, field:, max: 255) ⇒ Object 



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# File 'lib/legion/api/validators.rb', line 15

def validate_string_length!(value, field:, max: 255)
  return unless value.is_a?(String) && value.length > max

  halt 400, json_error('field_too_long', "#{field} exceeds #{max} characters", status_code: 400)
end

#validate_uuid!(value, field:) ⇒ Object 



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# File 'lib/legion/api/validators.rb', line 28

def validate_uuid!(value, field:)
  return if value.nil?
  return if value.to_s.match?(UUID_PATTERN)

  halt 400, json_error('invalid_format', "#{field} must be a valid UUID", status_code: 400)
end