Rails5.2.3でpluralize()が正しく動きません

Question

以下の環境でアプリを作っているのですが、pluralize関数がうまく作動しません。

ヘルパーが読み込めていない？ということなのでしょうか。。。
よろしくお願いいたします。

実行環境

rails 5.2.3
ruby 2.6.1p33

該当のソースコード

$ rails c
Running via Spring preloader in process 16483
Loading development environment (Rails 5.2.3)
irb(main):001:0>  helper.pluralize(1, "error")
=> "1 error"
irb(main):002:0>  helper.pluralize(2, "error")
=> "2 error"
irb(main):003:0> helper.pluralize(5, "error")
=> "5 error"
irb(main):004:0> 

###試したこと

text_helper.rb　を見てみましたが記載されているようです。

# frozen_string_literal: true

require "active_support/core_ext/string/filters"
require "active_support/core_ext/array/extract_options"

module ActionView
  # = Action View Text Helpers
  module Helpers #:nodoc:
    # The TextHelper module provides a set of methods for filtering, formatting
    # and transforming strings, which can reduce the amount of inline Ruby code in
    # your views. These helper methods extend Action View making them callable
    # within your template files.
    #
    # ==== Sanitization
    #
    # Most text helpers that generate HTML output sanitize the given input by default,
    # but do not escape it. This means HTML tags will appear in the page but all malicious
    # code will be removed. Let's look at some examples using the +simple_format+ method:
    #
    #   simple_format('<a href="http://example.com/">Example</a>')
    #   # => "<p><a href=\"http://example.com/\">Example</a></p>"
    #
    #   simple_format('<a href="javascript:alert(\'no!\')">Example</a>')
    #   # => "<p><a>Example</a></p>"
    #
    # If you want to escape all content, you should invoke the +h+ method before
    # calling the text helper.
    #
    #   simple_format h('<a href="http://example.com/">Example</a>')
    #   # => "<p>&lt;a href=\"http://example.com/\"&gt;Example&lt;/a&gt;</p>"
    module TextHelper
      extend ActiveSupport::Concern

      include SanitizeHelper
      include TagHelper
      include OutputSafetyHelper

  （中略）

      # Attempts to pluralize the +singular+ word unless +count+ is 1. If
      # +plural+ is supplied, it will use that when count is > 1, otherwise
      # it will use the Inflector to determine the plural form for the given locale,
      # which defaults to I18n.locale
      #
      # The word will be pluralized using rules defined for the locale
      # (you must define your own inflection rules for languages other than English).
      # See ActiveSupport::Inflector.pluralize
      #
      #   pluralize(1, 'person')
      #   # => 1 person
      #
      #   pluralize(2, 'person')
      #   # => 2 people
      #
      #   pluralize(3, 'person', plural: 'users')
      #   # => 3 users
      #
      #   pluralize(0, 'person')
      #   # => 0 people
      #
      #   pluralize(2, 'Person', locale: :de)
      #   # => 2 Personen
      def pluralize(count, singular, plural_arg = nil, plural: plural_arg, locale: I18n.locale)
        word = if (count == 1 || count.to_s =~ /^1(.0+)?$/)
          singular
        else
          plural || singular.pluralize(locale)
        end

        "#{count || 0} #{word}"
      end

  （中略）
    end
  end
end

Answer 1

localeオプションに:enを指定すると、おそらく正常に動作すると思います。
localeオプションが指定されていないとI18n.localeが設定されるので、:jaが指定されているものと思われます。

[1] pry(main)> helper.pluralize(1, "error", locale: :en)
=> "1 error"
[2] pry(main)> helper.pluralize(2, "error", locale: :en)
=> "2 errors"

Comments

[natecosan]

ありがとうございます！！解決しました。