Updated to svn tags/tracks-1.6

app/models/project.rb

@@ -0,0 +1,114 @@
+class Project < ActiveRecord::Base
+  has_many :todos, :dependent => :delete_all, :include => :context
+  has_many :notes, :dependent => :delete_all, :order => "created_at DESC"
+  belongs_to :default_context, :dependent => :nullify, :class_name => "Context", :foreign_key => "default_context_id"
+  belongs_to :user
+  
+  validates_presence_of :name, :message => "project must have a name"
+  validates_length_of :name, :maximum => 255, :message => "project name must be less than 256 characters"
+  validates_uniqueness_of :name, :message => "already exists", :scope =>"user_id"
+  validates_does_not_contain :name, :string => ',', :message => "cannot contain the comma (',') character"
+
+  acts_as_list :scope => 'user_id = #{user_id} AND state = \'#{state}\''
+  acts_as_state_machine :initial => :active, :column => 'state'
+  extend NamePartFinder
+  include Tracks::TodoList
+  
+  state :active
+  state :hidden, :enter => :hide_todos, :exit => :unhide_todos
+  state :completed, :enter => Proc.new { |p| p.completed_at = Time.now.utc }, :exit => Proc.new { |p| p.completed_at = nil }
+
+  event :activate do
+    transitions :to => :active,   :from => [:hidden, :completed]
+  end
+  
+  event :hide do
+    transitions :to => :hidden,   :from => [:active, :completed]
+  end
+  
+  event :complete do
+    transitions :to => :completed, :from => [:active, :hidden]
+  end
+  
+  attr_protected :user
+  attr_accessor :cached_note_count
+
+  def self.null_object
+    NullProject.new
+  end
+  
+  def self.feed_options(user)
+    {
+      :title => 'Tracks Projects',
+      :description => "Lists all the projects for #{user.display_name}"
+    }
+  end
+      
+  def hide_todos
+    todos.each do |t|
+      unless t.completed? || t.deferred?
+        t.hide!
+        t.save
+      end
+    end
+  end
+      
+  def unhide_todos
+    todos.each do |t|
+      if t.project_hidden?
+        t.unhide!
+        t.save
+      end
+    end
+  end
+  
+  def note_count
+    cached_note_count || notes.count
+  end
+  
+  alias_method :original_default_context, :default_context
+
+  def default_context
+    original_default_context.nil? ? Context.null_object : original_default_context
+  end
+  
+  # would prefer to call this method state=(), but that causes an endless loop
+  # as a result of acts_as_state_machine calling state=() to update the attribute
+  def transition_to(candidate_state)
+    case candidate_state.to_sym
+      when current_state
+        return
+      when :hidden
+        hide!
+      when :active
+        activate!
+      when :completed
+        complete!
+    end
+  end
+  
+  def name=(value)
+    self[:name] = value.gsub(/\s{2,}/, " ").strip
+  end
+  
+  def new_record_before_save?
+    @new_record_before_save
+  end  
+  
+end
+
+class NullProject
+  
+  def hidden?
+    false
+  end
+  
+  def nil?
+    true
+  end
+  
+  def id
+    nil
+  end
+    
+end