Class: BytesizeValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
app/validators/bytesize_validator.rb

Overview

BytesizeValidator

Custom validator for verifying that bytesize of a field doesn’t exceed the specified limit. It is different from Rails length validator because it takes .bytesize into account instead of .size/.length

Example:

class Snippet < ActiveRecord::Base
  validates :content, bytesize: { maximum: -> { Gitlab::CurrentSettings.snippet_size_limit } }
end

Configuration options:

  • maximum - Proc that evaluates the bytesize limit that cannot be exceeded

Instance Method Summary collapse

Instance Method Details

#validate_each(record, attr, value) ⇒ Object 



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# File 'app/validators/bytesize_validator.rb', line 17

def validate_each(record, attr, value)
  size = value.to_s.bytesize
  max_size = options[:maximum].call

  return if size <= max_size

  error_message = format(_('is too long (%{size}). The maximum size is %{max_size}.'), {
                           size: ActiveSupport::NumberHelper.number_to_human_size(size),
                           max_size: ActiveSupport::NumberHelper.number_to_human_size(max_size)
                         })

  record.errors.add(attr, error_message)
end