Checkout of Instiki Trunk 1/21/2007.

app/models/web.rb

@@ -0,0 +1,147 @@
+class Web < ActiveRecord::Base
+  has_many :pages
+  has_many :wiki_files
+
+  def wiki
+    Wiki.new
+  end
+  
+  def settings_changed?(markup, safe_mode, brackets_only)
+    self.markup != markup || 
+    self.safe_mode != safe_mode || 
+    self.brackets_only != brackets_only
+  end
+  
+  def add_page(name, content, time, author, renderer)
+    page = page(name) || Page.new(:web => self, :name => name)
+    page.revise(content, time, author, renderer)
+  end
+  
+  def authors
+    connection.select_all(
+        'SELECT DISTINCT r.author AS author ' + 
+        'FROM revisions r ' +
+        'JOIN pages p ON p.id = r.page_id ' +
+        'WHERE p.web_id = ' + self.id.to_s +
+        'ORDER by 1 '
+        ).collect { |row| row['author'] }        
+  end
+
+  def categories
+    select.map { |page| page.categories }.flatten.uniq.sort
+  end
+
+  def page(name)
+    pages.find(:first, :conditions => ['name = ?', name])
+  end
+  
+  def last_page
+    return Page.find(:first, :order => 'id desc', :conditions => ['web_id = ?', self.id])
+  end
+
+  def has_page?(name)
+    Page.count(['web_id = ? AND name = ?', id, name]) > 0
+  end
+
+  def has_file?(file_name)
+    WikiFile.find_by_file_name(file_name) != nil
+  end
+
+  def markup
+    read_attribute('markup').to_sym
+  end
+
+  def page_names_by_author
+    connection.select_all(
+        'SELECT DISTINCT r.author AS author, p.name AS page_name ' +
+        'FROM revisions r ' +
+        'JOIN pages p ON r.page_id = p.id ' +
+        "WHERE p.web_id = #{self.id} " +
+        'ORDER by p.name'
+    ).inject({}) { |result, row|
+        author, page_name = row['author'], row['page_name']
+        result[author] = [] unless result.has_key?(author)
+        result[author] << page_name
+        result
+    }
+  end
+
+  def remove_pages(pages_to_be_removed)
+    pages_to_be_removed.each { |p| p.destroy }
+  end
+  
+  def revised_at
+    select.most_recent_revision
+  end
+    
+  def select(&condition)
+    PageSet.new(self, pages, condition)
+  end
+  
+  def select_all
+    PageSet.new(self, pages, nil)
+  end
+  
+  def to_param
+    address
+  end
+  
+  def create_files_directory
+    return unless allow_uploads == 1
+    dummy_file = self.wiki_files.build(:file_name => '0', :description => '0', :content => '0')
+    dir = File.dirname(dummy_file.content_path)
+    begin
+      require 'fileutils'
+      FileUtils.mkdir_p dir
+      dummy_file.save
+      dummy_file.destroy
+    rescue => e
+      logger.error("Failed create files directory for #{self.address}: #{e}")
+      raise "Instiki could not create directory to store uploaded files. " +
+            "Please make sure that Instiki is allowed to create directory " +
+            "#{File.expand_path(dir)} and add files to it."
+    end
+  end
+  
+  private
+
+    # Returns an array of all the wiki words in any current revision
+    def wiki_words
+      pages.inject([]) { |wiki_words, page| wiki_words << page.wiki_words }.flatten.uniq
+    end
+    
+    # Returns an array of all the page names on this web
+    def page_names
+      pages.map { |p| p.name }
+    end
+    
+  protected
+    before_save :sanitize_markup
+    after_save :create_files_directory
+    before_validation :validate_address
+    validates_uniqueness_of :address
+    validates_length_of :color, :in => 3..6
+  
+    def sanitize_markup
+      self.markup = markup.to_s
+    end
+    
+    def validate_address
+      unless address == CGI.escape(address)
+        self.errors.add(:address, 'should contain only valid URI characters')
+        raise Instiki::ValidationError.new("#{self.class.human_attribute_name('address')} #{errors.on(:address)}")
+      end
+    end
+    
+    def default_web?
+      defined? DEFAULT_WEB and self.address == DEFAULT_WEB
+    end
+    
+    def files_path
+      if default_web?
+        "#{RAILS_ROOT}/public/files"
+      else
+        "#{RAILS_ROOT}/public/#{self.address}/files"
+      end
+    end
+end