final post refactoring

gistfile1.rb

# Ensure maximum amount of mentions in a post
def max_mention_validator
  if acting_user_is_trusted?
    add_error_if_count_exceeded(:too_many_mentions, raw_mentions.size, SiteSetting.max_mentions_per_post)
  else
    add_error_if_count_exceeded(:too_many_mentions_newuser, raw_mentions.size, SiteSetting.newuser_max_mentions_per_post)
  end
end

# Ensure new users can not put too many images in a post
def max_images_validator
  add_error_if_count_exceeded(:too_many_images, image_count, SiteSetting.newuser_max_images) unless acting_user_is_trusted?
end

  # Ensure new users can not put too many links in a post
def max_links_validator
  add_error_if_count_exceeded(:too_many_links, link_count, SiteSetting.newuser_max_links) unless acting_user_is_trusted?
end

...

private

def acting_user_is_trusted?
  acting_user.present? && acting_user.has_trust_level?(:basic)
end

def add_error_if_count_exceeded(key_for_translation, current_count, max_count)
  errors.add(:base, I18n.t(key_for_translation, count: max_count)) if current_count > max_count
end