30 lines
1.1 KiB
Ruby
30 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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# BytesizeValidator
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#
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# Custom validator for verifying that bytesize of a field doesn't exceed the specified limit.
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# It is different from Rails length validator because it takes .bytesize into account instead of .size/.length
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#
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# Example:
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#
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# class Snippet < ActiveRecord::Base
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# validates :content, bytesize: { maximum: -> { Gitlab::CurrentSettings.snippet_size_limit } }
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# end
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#
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# Configuration options:
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# * <tt>maximum</tt> - Proc that evaluates the bytesize limit that cannot be exceeded
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class BytesizeValidator < ActiveModel::EachValidator
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def validate_each(record, attr, value)
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size = value.to_s.bytesize
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max_size = options[:maximum].call
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return if size <= max_size
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error_message = format(_('is too long (%{size}). The maximum size is %{max_size}.'), {
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size: ActiveSupport::NumberHelper.number_to_human_size(size),
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max_size: ActiveSupport::NumberHelper.number_to_human_size(max_size)
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})
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record.errors.add(attr, error_message)
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end
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end
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