comparison app/models/.svn/text-base/wiki.rb.svn-base @ 0:513646585e45

* Import Redmine trunk SVN rev 3859

+# Redmine - project management software
+# Copyright (C) 2006-2009  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Wiki < ActiveRecord::Base
+  belongs_to :project
+  has_many :pages, :class_name => 'WikiPage', :dependent => :destroy, :order => 'title'
+  has_many :redirects, :class_name => 'WikiRedirect', :dependent => :delete_all
+  
+  acts_as_watchable
+  
+  validates_presence_of :start_page
+  validates_format_of :start_page, :with => /^[^,\.\/\?\;\|\:]*$/
+  
+  def visible?(user=User.current)
+    !user.nil? && user.allowed_to?(:view_wiki_pages, project)
+  end
+  
+  # Returns the wiki page that acts as the sidebar content
+  # or nil if no such page exists
+  def sidebar
+    @sidebar ||= find_page('Sidebar', :with_redirect => false)
+  end
+  
+  # find the page with the given title
+  # if page doesn't exist, return a new page
+  def find_or_new_page(title)
+    title = start_page if title.blank?
+    find_page(title) || WikiPage.new(:wiki => self, :title => Wiki.titleize(title))
+  end
+  
+  # find the page with the given title
+  def find_page(title, options = {})
+    title = start_page if title.blank?
+    title = Wiki.titleize(title)
+    page = pages.find_by_title(title)
+    if !page && !(options[:with_redirect] == false)
+      # search for a redirect
+      redirect = redirects.find_by_title(title)
+      page = find_page(redirect.redirects_to, :with_redirect => false) if redirect
+    end
+    page
+  end
+  
+  # Finds a page by title
+  # The given string can be of one of the forms: "title" or "project:title"
+  # Examples:
+  #   Wiki.find_page("bar", project => foo)
+  #   Wiki.find_page("foo:bar")
+  def self.find_page(title, options = {})
+    project = options[:project]
+    if title.to_s =~ %r{^([^\:]+)\:(.*)$}
+      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
+    title = title.gsub(/\s+/, '_').delete(',./?;|:') if title
+    # upcase the first letter
+    title = (title.slice(0..0).upcase + (title.slice(1..-1) || '')) if title
+    title
+  end  
+end