Contents

class ReWorkflow < ActiveRecord::Base
  has_many :re_plan_workflows, :dependent => :destroy
  has_many :re_plans, :through => :re_plan_workflows, :order => 're_plan_workflows.position'
  has_many :re_rules, :foreign_key => :re_workflow_id, :dependent => :destroy, :order => :position
  
  validates_presence_of   :code
  validates_presence_of   :title
  validates_uniqueness_of :code, :case_sensitive => false, :message=>"alread taken."
  
  scope :order_code,  order('re_workflows.code ASC')
  scope :order_title, order('re_workflows.title ASC')
  
  before_save    :before_save_workflow
  before_destroy :before_destroy_workflow

  def before_save_workflow
    self.changed! if changes.detect { |change| !ignore_attributes.include?(change[0])}    
  end  
  
  def before_destroy_workflow
    re_plans.each do |re_plan|
      re_plan.changed!
    end
  end

  def code=(new_code)
    self[:code] = new_code.strip.downcase.gsub(/[^a-zA-Z0-9]+/i, '_') if new_code && new_record?
  end
  
  def publish
    { "code" => code, 
      "title" => title, 
      "description" => description,
      "rules" => re_rules.map{ | re_rule | re_rule.publish }
    }
  end  

  def revert!(rule_data)
    self.code = rule_data["code"]
    self.title = rule_data["title"]
    self.description = rule_data["description"]
    
    self.re_rules = (rule_data["rules"] || []).map { |rule| ReRule.new.revert!(rule) }
    self
  end  

  def workflow_error
    return 'rules required' if re_rules.empty?
    return 'error within rules' if re_rules.any? { | re_rule | re_rule.rule_error }    
    nil
  end

  
  def changed!
    re_plans.each do |re_plan|
      re_plan.changed!
    end
  end
  
  def has_plan? re_plan
    re_plans.include? re_plan
  end
  
  protected
    def ignore_attributes 
      [self.class.primary_key, self.class.inheritance_column, "created_at", "updated_at"]
    end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
rules_engine-0.3.3	app/models/re_workflow.rb
rules_engine-0.3.2	app/models/re_workflow.rb
rules_engine-0.3.1	app/models/re_workflow.rb
rules_engine-0.3.0	app/models/re_workflow.rb