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We have the `# frozen_string_literal: true` comment on all our
files. This means all string literals are frozen. There is no need
to call #freeze on any literals.
For files with `# frozen_string_literal: true`
```
puts %w{a b}[0].frozen?
=> true
puts "hi".frozen?
=> true
puts "a #{1} b".frozen?
=> true
puts ("a " + "b").frozen?
=> false
puts (-("a " + "b")).frozen?
=> true
```
For more details see: https://samsaffron.com/archive/2018/02/16/reducing-string-duplication-in-ruby
39 lines
994 B
Ruby
39 lines
994 B
Ruby
# frozen_string_literal: true
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class CensoredWordsValidator < ActiveModel::EachValidator
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def validate_each(record, attribute, value)
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words_regexp = censored_words_regexp
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if WordWatcher.words_for_action(:censor).present? && !words_regexp.nil?
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censored_words = censor_words(value, words_regexp)
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return if censored_words.blank?
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record.errors.add(
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attribute,
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:contains_censored_words,
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censored_words: join_censored_words(censored_words)
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)
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end
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end
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private
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def censor_words(value, regexp)
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censored_words = value.scan(regexp)
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censored_words.flatten!
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censored_words.compact!
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censored_words.map!(&:strip)
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censored_words.select!(&:present?)
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censored_words.uniq!
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censored_words
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end
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def join_censored_words(censored_words)
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censored_words.map!(&:downcase)
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censored_words.uniq!
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censored_words.join(", ")
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end
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def censored_words_regexp
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WordWatcher.word_matcher_regexp :censor
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end
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end
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