views: add embed_wiki helper.

Also remove options to configure names of wiki notice pages. These names
generally don't need to be changed and we already hardcode links to wiki
pages in other places anyway.

app/controllers/uploads_controller.rb

@@ -5,7 +5,6 @@ class UploadsController < ApplicationController
 
   def new
     @source = Sources::Strategies.find(params[:url], params[:ref]) if params[:url].present?
-    @upload_notice_wiki = WikiPage.titled(Danbooru.config.upload_notice_wiki_page).first
     @upload, @remote_size = UploadService::ControllerHelper.prepare(
       url: params[:url], ref: params[:ref]
     )

app/helpers/application_helper.rb

@@ -163,6 +163,12 @@ module ApplicationHelper
     html.html_safe
   end
 
+  def embed_wiki(title, **options)
+    wiki = WikiPage.find_by(title: title)
+    text = format_text(wiki&.body)
+    tag.div(text, class: "prose", **options)
+  end
+
   def dtext_field(object, name, options = {})
     options[:name] ||= name.capitalize
     options[:input_id] ||= "#{object}_#{name}"

app/views/moderation_reports/_new.html.erb

@@ -1,7 +1,5 @@
 <div class="report-dialog-body">
-  <div class="prose">
-    <%= format_text(WikiPage.titled(Danbooru.config.report_notice_wiki_page).first.try(&:body)) %>
-  </div>
+  <%= embed_wiki("help:report_notice") %>
 
   <%# XXX dtext_field expects there to be a `moderation_report` instance variable. %>
   <% @moderation_report = moderation_report %>

app/views/post_appeals/_new.html.erb

@@ -1,7 +1,5 @@
 <div class="appeal-dialog-body">
-  <div class="prose">
-    <%= format_text(WikiPage.titled(Danbooru.config.appeal_notice_wiki_page).first.try(&:body)) %>
-  </div>
+  <%= embed_wiki("help:appeal_notice") %>
 
   <%# XXX dtext_field expects there to be a `post_appeal` instance variable. %>
   <% @post_appeal = post_appeal %>

app/views/post_flags/_new.html.erb

@@ -1,7 +1,5 @@
 <div class="flag-dialog-body">
-  <div class="prose">
-    <%= format_text(WikiPage.titled(Danbooru.config.flag_notice_wiki_page).first.try(&:body)) %>
-  </div>
+  <%= embed_wiki("help:flag_notice") %>
 
   <%# XXX dtext_field expects there to be a `post_flag` instance variable. %>
   <% @post_flag = post_flag %>

app/views/post_replacements/_new.html.erb

@@ -1,7 +1,5 @@
 <div class="replace-image-dialog-body">
-  <div class="prose">
-    <%= format_text(WikiPage.titled(Danbooru.config.replacement_notice_wiki_page).first.try(&:body)) %>
-  </div>
+  <%= embed_wiki("help:replacement_notice") %>
 
   <%= edit_form_for(post_replacement, url: post_replacements_path(post_id: post_replacement.post_id), method: :post, remote: true) do |f| %>
     <%= f.input :replacement_file, label: "File", as: :file %>

app/views/uploads/new.html.erb

@@ -3,9 +3,7 @@
     <h1>Upload</h1>
 
     <% if CurrentUser.can_upload? %>
-      <div id="upload-guide-notice" class="prose">
-        <%= format_text(@upload_notice_wiki.try(&:body)) %>
-      </div>
+      <%= embed_wiki("help:upload_notice", id: "upload-guide-notice") %>
 
       <% unless CurrentUser.can_upload_free? %>
         <p>Upload limit: <strong><%= CurrentUser.user.presenter.upload_limit(self) %></strong>.</p>

config/danbooru_default_config.rb

@@ -289,26 +289,6 @@ module Danbooru
       nil
     end
 
-    def upload_notice_wiki_page
-      "help:upload_notice"
-    end
-
-    def flag_notice_wiki_page
-      "help:flag_notice"
-    end
-
-    def appeal_notice_wiki_page
-      "help:appeal_notice"
-    end
-
-    def report_notice_wiki_page
-      "help:report_notice"
-    end
-
-    def replacement_notice_wiki_page
-      "help:replacement_notice"
-    end
-
     # The number of posts displayed per page.
     def posts_per_page
       20