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FEATURE: Allow to modify topic-backed static pages (#15324)

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A plugin API that allows customizing existing topic-backed static pages, like:
faq, tos, privacy (see: StaticController) The block passed to this
method has to return a SiteSetting name that contains a topic id.

```
add_topic_static_page("faq") do |controller|
  current_user&.locale == "pl" ? "polish_faq_topic_id" : "faq_topic_id"
end
```

You can also add new pages in a plugin, but remember to add a route,
for example:

```
get "contact" => "static#show", id: "contact"
```
This commit is contained in:
Jarek Radosz
2021-12-16 04:24:11 +01:00
committed by GitHub
parent ad4faf637c
commit 2a4df93b8e
4 changed files with 83 additions and 17 deletions
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36
app/controllers/static_controller.rb
View File

@ -1,7 +1,6 @@
# frozen_string_literal: true
class StaticController < ApplicationController
skip_before_action :check_xhr, :redirect_to_login_if_required
skip_before_action :verify_authenticity_token, only: [:brotli_asset, :cdn_asset, :enter, :favicon, :service_worker_asset]
skip_before_action :preload_json, only: [:brotli_asset, :cdn_asset, :enter, :favicon, :service_worker_asset]
@ -11,24 +10,26 @@ class StaticController < ApplicationController
PAGES_WITH_EMAIL_PARAM = ['login', 'password_reset', 'signup']
MODAL_PAGES = ['password_reset', 'signup']
DEFAULT_PAGES = {
"faq" => { redirect: "faq_url", topic_id: "guidelines_topic_id" },
"tos" => { redirect: "tos_url", topic_id: "tos_topic_id" },
"privacy" => { redirect: "privacy_policy_url", topic_id: "privacy_topic_id" },
}
CUSTOM_PAGES = {} # Add via `#add_topic_static_page` in plugin API
def show
return redirect_to(path '/') if current_user && (params[:id] == 'login' || params[:id] == 'signup')
if SiteSetting.login_required? && current_user.nil? && ['faq', 'guidelines'].include?(params[:id])
return redirect_to path('/login')
end
map = {
"faq" => { redirect: "faq_url", topic_id: "guidelines_topic_id" },
"tos" => { redirect: "tos_url", topic_id: "tos_topic_id" },
"privacy" => { redirect: "privacy_policy_url", topic_id: "privacy_topic_id" }
}
map = DEFAULT_PAGES.deep_merge(CUSTOM_PAGES)
@page = params[:id]
if map.has_key?(@page)
site_setting_key = map[@page][:redirect]
url = SiteSetting.get(site_setting_key)
url = SiteSetting.get(site_setting_key) if site_setting_key
return redirect_to(url) if url.present?
end
@ -39,8 +40,12 @@ class StaticController < ApplicationController
@page = @page.gsub(/[^a-z0-9\_\-]/, '')
if map.has_key?(@page)
@topic = Topic.find_by_id(SiteSetting.get(map[@page][:topic_id]))
topic_id = map[@page][:topic_id]
topic_id = instance_exec(&topic_id) if topic_id.is_a?(Proc)
@topic = Topic.find_by_id(SiteSetting.get(topic_id))
raise Discourse::NotFound unless @topic
title_prefix = if I18n.exists?("js.#{@page}")
I18n.t("js.#{@page}")
else
@ -48,17 +53,16 @@ class StaticController < ApplicationController
end
@title = "#{title_prefix} - #{SiteSetting.title}"
@body = @topic.posts.first.cooked
@faq_overriden = !SiteSetting.faq_url.blank?
@faq_overridden = !SiteSetting.faq_url.blank?
render :show, layout: !request.xhr?, formats: [:html]
return
end
unless @title.present?
@title = if SiteSetting.short_site_description.present?
"#{SiteSetting.title} - #{SiteSetting.short_site_description}"
else
SiteSetting.title
end
@title = SiteSetting.title
if SiteSetting.short_site_description.present?
@title << " - #{SiteSetting.short_site_description}"
end
if I18n.exists?("static.#{@page}")