Extends child_pages macro to display child pages based on page parameter (#1975).

It can also be called from anywhere now (not only from wiki pages).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2053 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/application_helper.rb

@@ -119,6 +119,22 @@ module ApplicationHelper
     end
   end
 
+  def render_page_hierarchy(pages, node=nil)
+    content = ''
+    if pages[node]
+      content << "<ul class=\"pages-hierarchy\">\n"
+      pages[node].each do |page|
+        content << "<li>"
+        content << link_to(h(page.pretty_title), {:controller => 'wiki', :action => 'index', :id => page.project, :page => page.title},
+                           :title => (page.respond_to?(:updated_on) ? l(:label_updated_time, distance_of_time_in_words(Time.now, page.updated_on)) : nil))
+        content << "\n" + render_page_hierarchy(pages, page.id) if pages[page.id]
+        content << "</li>\n"
+      end
+      content << "</ul>\n"
+    end
+    content
+  end
+
   # Truncates and returns the string as a single line
   def truncate_single_line(string, *args)
     truncate(string, *args).gsub(%r{[\r\n]+}m, ' ')

app/helpers/wiki_helper.rb

@@ -16,22 +16,6 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 module WikiHelper
-
-  def render_page_hierarchy(pages, node=nil)
-    content = ''
-    if pages[node]
-      content << "<ul class=\"pages-hierarchy\">\n"
-      pages[node].each do |page|
-        content << "<li>"
-        content << link_to(h(page.pretty_title), {:action => 'index', :page => page.title},
-                           :title => (page.respond_to?(:updated_on) ? l(:label_updated_time, distance_of_time_in_words(Time.now, page.updated_on)) : nil))
-        content << "\n" + render_page_hierarchy(pages, page.id) if pages[page.id]
-        content << "</li>\n"
-      end
-      content << "</ul>\n"
-    end
-    content
-  end
   
   def html_diff(wdiff)
     words = wdiff.words.collect{|word| h(word)}

app/models/wiki.rb

@@ -43,6 +43,25 @@ class Wiki < ActiveRecord::Base
     page
   end
   
+  # Finds a page by title
+  # The given string can be of one of the forms: "title" or "project:title"
+  # Examples:
+  #   Wiki.find_page("bar", project => foo)
+  #   Wiki.find_page("foo:bar")
+  def self.find_page(title, options = {})
+    project = options[:project]
+    if title.to_s =~ %r{^([^\:]+)\:(.*)$}
+      project_identifier, title = $1, $2
+      project = Project.find_by_identifier(project_identifier) || Project.find_by_name(project_identifier)
+    end
+    if project && project.wiki
+      page = project.wiki.find_page(title)
+      if page && page.content
+        page
+      end
+    end
+  end
+  
   # turn a string into a valid page title
   def self.titleize(title)
     # replace spaces with _ and remove unwanted caracters