#300: Added pending_successors collection and enforces referential integrity for dependencies

This commit is contained in:
Henrik Bohre 2009-06-08 23:43:40 +02:00 committed by Eric Allen
parent fc9ffeaa4b
commit 4016c89cdf

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@ -5,12 +5,15 @@ class Todo < ActiveRecord::Base
belongs_to :user
belongs_to :recurring_todo
has_many :predecessor_dependencies, :foreign_key => 'predecessor_id', :class_name => 'Dependency'
has_many :successor_dependencies, :foreign_key => 'successor_id', :class_name => 'Dependency'
has_many :predecessors, :through => :successor_dependencies
has_many :successors, :through => :predecessor_dependencies
has_many :predecessor_dependencies, :foreign_key => 'predecessor_id', :class_name => 'Dependency', :dependent => :destroy
has_many :successor_dependencies, :foreign_key => 'successor_id', :class_name => 'Dependency', :dependent => :destroy
has_many :predecessors, :through => :successor_dependencies, :dependent => :destroy
has_many :successors, :through => :predecessor_dependencies, :dependent => :destroy
has_many :uncompleted_predecessors, :through => :successor_dependencies,
:source => :predecessor, :conditions => ['NOT (state = ?)', 'completed']
:source => :predecessor, :conditions => ['NOT (state = ?)', 'completed'], :dependent => :destroy
has_many :pending_successors, :through => :predecessor_dependencies,
:source => :successor, :conditions => ['state = ?', 'pending'], :dependent => :destroy
named_scope :active, :conditions => { :state => 'active' }
named_scope :not_completed, :conditions => ['NOT (state = ? )', 'completed']