discourse/lib/validators/censored_words_validator.rb
Sam Saffron d0d5a138c3
DEV: stop freezing frozen strings
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
2020-04-30 16:48:53 +10:00

39 lines
994 B
Ruby

# frozen_string_literal: true
class CensoredWordsValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
words_regexp = censored_words_regexp
if WordWatcher.words_for_action(:censor).present? && !words_regexp.nil?
censored_words = censor_words(value, words_regexp)
return if censored_words.blank?
record.errors.add(
attribute,
:contains_censored_words,
censored_words: join_censored_words(censored_words)
)
end
end
private
def censor_words(value, regexp)
censored_words = value.scan(regexp)
censored_words.flatten!
censored_words.compact!
censored_words.map!(&:strip)
censored_words.select!(&:present?)
censored_words.uniq!
censored_words
end
def join_censored_words(censored_words)
censored_words.map!(&:downcase)
censored_words.uniq!
censored_words.join(", ")
end
def censored_words_regexp
WordWatcher.word_matcher_regexp :censor
end
end