discourse/lib/introduction_updater.rb

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2016-09-20 17:01:54 -04:00
class IntroductionUpdater
def initialize(user)
@user = user
end
def get_summary
summary_from_post(find_welcome_post)
end
def update_summary(new_value)
post = find_welcome_post
return unless post
previous_value = summary_from_post(post).strip
if previous_value != new_value
revisor = PostRevisor.new(post)
remaining = post.raw.split("\n")[1..-1]
revisor.revise!(@user, raw: "#{new_value}\n#{remaining.join("\n")}")
end
end
protected
def summary_from_post(post)
return post ? post.raw.split("\n").first : nil
end
def find_welcome_post
topic_id = TopicCustomField.where(name: "is_welcome_topic").where(value: "true").pluck(:topic_id)
unless topic_id.present?
topic_id = Topic.listable_topics.where(slug: 'welcome-to-discourse').pluck(:id)
end
welcome_topic = Topic.where(id: topic_id).first
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return nil unless welcome_topic.present?
post = welcome_topic.posts.where(post_number: 1).first
return nil unless post.present?
post
end
end