discourse/lib/introduction_updater.rb

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# frozen_string_literal: true
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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
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def summary_from_post(post)
return post ? post.raw.split("\n").first : nil
end
def find_welcome_post
topic_id = SiteSetting.welcome_topic_id
if topic_id <= 0
title = I18n.t("discourse_welcome_topic.title")
topic_id = find_topic_id(title)
end
if topic_id.blank?
title = I18n.t("discourse_welcome_topic.title", locale: :en)
topic_id = find_topic_id(title)
end
if topic_id.blank?
topic_id = Topic.listable_topics
.where(pinned_globally: true)
.order(:created_at)
.limit(1)
.pluck(:id)
end
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welcome_topic = Topic.where(id: topic_id).first
return nil if welcome_topic.blank?
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welcome_topic.first_post
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end
def find_topic_id(topic_title)
slug = Slug.for(topic_title, nil)
return nil if slug.blank?
Topic.listable_topics
.where(slug: slug)
.pluck(:id)
end
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end