Wiki page hierarchy (#528). Parent page can be assigned on Rename screen.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1698 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/fixtures/wiki_pages.yml

@@ -4,23 +4,27 @@ wiki_pages_001:
   title: CookBook_documentation
   id: 1
   wiki_id: 1
-  protected: true  
+  protected: true
+  parent_id: 
 wiki_pages_002: 
   created_on: 2007-03-08 00:18:07 +01:00
   title: Another_page
   id: 2
   wiki_id: 1
   protected: false
+  parent_id: 
 wiki_pages_003: 
   created_on: 2007-03-08 00:18:07 +01:00
   title: Start_page
   id: 3
   wiki_id: 2
   protected: false
+  parent_id: 
 wiki_pages_004: 
   created_on: 2007-03-08 00:18:07 +01:00
   title: Page_with_an_inline_image
   id: 4
   wiki_id: 1
   protected: false
+  parent_id: 1
   

test/functional/wiki_controller_test.rb

@@ -163,8 +163,16 @@ class WikiControllerTest < Test::Unit::TestCase
     pages = assigns(:pages)
     assert_not_nil pages
     assert_equal Project.find(1).wiki.pages.size, pages.size
-    assert_tag :tag => 'a', :attributes => { :href => '/wiki/ecookbook/CookBook_documentation' },
-                            :content => /CookBook documentation/
+    
+    assert_tag :ul, :attributes => { :class => 'pages-hierarchy' },
+                    :child => { :tag => 'li', :child => { :tag => 'a', :attributes => { :href => '/wiki/ecookbook/CookBook_documentation' },
+                                              :content => 'CookBook documentation' },
+                                :child => { :tag => 'ul',
+                                            :child => { :tag => 'li',
+                                                        :child => { :tag => 'a', :attributes => { :href => '/wiki/ecookbook/Page_with_an_inline_image' },
+                                                                                 :content => 'Page with an inline image' } } } },
+                    :child => { :tag => 'li', :child => { :tag => 'a', :attributes => { :href => '/wiki/ecookbook/Another_page' },
+                                                                       :content => 'Another page' } }
   end
   
   def test_not_found

test/unit/wiki_page_test.rb

@@ -48,6 +48,50 @@ class WikiPageTest < Test::Unit::TestCase
     assert page.new_record?
   end
   
+  def test_parent_title
+    page = WikiPage.find_by_title('Another_page')
+    assert_nil page.parent_title
+    
+    page = WikiPage.find_by_title('Page_with_an_inline_image')
+    assert_equal 'CookBook documentation', page.parent_title
+  end
+  
+  def test_assign_parent
+    page = WikiPage.find_by_title('Another_page')
+    page.parent_title = 'CookBook documentation'
+    assert page.save
+    page.reload
+    assert_equal WikiPage.find_by_title('CookBook_documentation'), page.parent
+  end
+  
+  def test_unassign_parent
+    page = WikiPage.find_by_title('Page_with_an_inline_image')
+    page.parent_title = ''
+    assert page.save
+    page.reload
+    assert_nil page.parent
+  end
+  
+  def test_parent_validation
+    page = WikiPage.find_by_title('CookBook_documentation')
+    
+    # A page that doesn't exist
+    page.parent_title = 'Unknown title'
+    assert !page.save
+    assert_equal :activerecord_error_invalid, page.errors.on(:parent_title)
+    # A child page
+    page.parent_title = 'Page_with_an_inline_image'
+    assert !page.save
+    assert_equal :activerecord_error_circular_dependency, page.errors.on(:parent_title)
+    # The page itself
+    page.parent_title = 'CookBook_documentation'
+    assert !page.save
+    assert_equal :activerecord_error_circular_dependency, page.errors.on(:parent_title)
+
+    page.parent_title = 'Another_page'
+    assert page.save
+  end
+  
   def test_destroy
     page = WikiPage.find(1)
     page.destroy