discourse/lib/introduction_updater.rb
Sam Saffron 30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00

69 lines
1.4 KiB
Ruby

# frozen_string_literal: true
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 = 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
welcome_topic = Topic.where(id: topic_id).first
return nil if welcome_topic.blank?
welcome_topic.first_post
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
end