From 1ee65e046913ede620c7dd989081bb61d8a8c198 Mon Sep 17 00:00:00 2001
From: Etienne Massip <etienne.massip@gmail.com>
Date: Sun, 2 Oct 2011 14:44:07 +0000
Subject: [PATCH] Use local links in wiki pages when possible (#3276).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@7558 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 app/helpers/application_helper.rb            |  6 ++++-
 test/unit/helpers/application_helper_test.rb | 27 ++++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 193c93e9a..dce6913a3 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -572,13 +572,17 @@ module ApplicationHelper
           end
           # check if page exists
           wiki_page = link_project.wiki.find_page(page)
-          url = case options[:wiki_links]
+          url = if anchor.present? && wiki_page.present? && (obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version)) && obj.page == wiki_page
+            "##{anchor}"
+          else
+            case options[:wiki_links]
             when :local; "#{title}.html"
             when :anchor; "##{title}"   # used for single-file wiki export
             else
               wiki_page_id = page.present? ? Wiki.titleize(page) : nil
               url_for(:only_path => only_path, :controller => 'wiki', :action => 'show', :project_id => link_project, :id => wiki_page_id, :anchor => anchor)
             end
+          end
           link_to(h(title || page), url, :class => ('wiki-page' + (wiki_page ? '' : ' new')))
         else
           # project or wiki doesn't exist
diff --git a/test/unit/helpers/application_helper_test.rb b/test/unit/helpers/application_helper_test.rb
index f71dfbe43..e3e788da2 100644
--- a/test/unit/helpers/application_helper_test.rb
+++ b/test/unit/helpers/application_helper_test.rb
@@ -533,6 +533,33 @@ EXPECTED
     assert_equal expected, textilizable(raw)
   end
 
+  def test_wiki_links_within_wiki_page_context
+
+    page = WikiPage.find_by_title('Another_page' )
+
+    to_test = {
+      # link to another page
+      '[[CookBook documentation]]' => '<a href="/projects/ecookbook/wiki/CookBook_documentation" class="wiki-page">CookBook documentation</a>',
+      '[[CookBook documentation|documentation]]' => '<a href="/projects/ecookbook/wiki/CookBook_documentation" class="wiki-page">documentation</a>',
+      '[[CookBook documentation#One-section]]' => '<a href="/projects/ecookbook/wiki/CookBook_documentation#One-section" class="wiki-page">CookBook documentation</a>',
+      '[[CookBook documentation#One-section|documentation]]' => '<a href="/projects/ecookbook/wiki/CookBook_documentation#One-section" class="wiki-page">documentation</a>',
+      # link to the current page
+      '[[Another page]]' => '<a href="/projects/ecookbook/wiki/Another_page" class="wiki-page">Another page</a>',
+      '[[Another page|Page]]' => '<a href="/projects/ecookbook/wiki/Another_page" class="wiki-page">Page</a>',
+      '[[Another page#anchor]]' => '<a href="#anchor" class="wiki-page">Another page</a>',
+      '[[Another page#anchor|Page]]' => '<a href="#anchor" class="wiki-page">Page</a>',
+      # page that doesn't exist
+      '[[Unknown page]]' => '<a href="/projects/ecookbook/wiki/Unknown_page" class="wiki-page new">Unknown page</a>',
+      '[[Unknown page|404]]' => '<a href="/projects/ecookbook/wiki/Unknown_page" class="wiki-page new">404</a>',
+      '[[Unknown page#anchor]]' => '<a href="/projects/ecookbook/wiki/Unknown_page#anchor" class="wiki-page new">Unknown page</a>',
+      '[[Unknown page#anchor|404]]' => '<a href="/projects/ecookbook/wiki/Unknown_page#anchor" class="wiki-page new">404</a>',
+    }
+
+    @project = Project.find(1)
+
+    to_test.each { |text, result| assert_equal "<p>#{result}</p>", textilizable(WikiContent.generate!( :text => text, :page => page ), :text) }
+  end
+
   def test_table_of_content
     raw = <<-RAW
 {{toc}}
-- 
2.39.5