property_spec.rb

require File.expand_path(File.join(File.dirname(__FILE__), '..', 'spec_helper'))

gem 'fastercsv', '>=1.2.3'
require 'fastercsv'

if ADAPTER
  describe DataMapper::Property, "with #{ADAPTER}" do
    describe " tracking strategies" do
      before :all do
        class Actor
          include DataMapper::Resource

          property :id, Serial
          property :name, String, :track => :set # :track default is :get for mutable types
          property :notes, DataMapper::Types::Text
          property :age, Integer # :track default is :set for immutable types
          property :rating, Integer
          property :location, String
          property :lead, TrueClass, :track => :load
          property :cv, Object # :track should be :hash
          property :agent, String, :track => :hash # :track only Object#hash value on :load.
            # Potentially faster, but less safe, so use judiciously, when the odds of a hash-collision are low.
        end
      end

      before do
        Actor.auto_migrate!(ADAPTER)
      end

      it "should set up tracking information" do
        Actor.properties[:name].track.should == :set
        Actor.properties[:location].track.should == :get
        Actor.properties[:rating].track.should == :set
        Actor.properties[:lead].track.should == :load
        Actor.properties[:cv].track.should == :hash
        Actor.properties[:agent].track.should == :hash
      end

      it "should track on :set" do
        repository(ADAPTER) do
          bob = Actor.new(:name => 'bob')
          bob.save

          bob.original_values.should_not have_key(:name)
          bob.dirty?.should == false

          bob.name = "Bob"
          bob.original_values.should have_key(:name)
          bob.original_values[:name].should == 'bob'
          bob.dirty?.should == true
        end
      end

      it "should track on :get" do
        repository(ADAPTER) do
          jon = Actor.new(:name => 'jon', :location => 'dallas')
          jon.save

          jon.location
          jon.original_values.should have_key(:location)
          jon.original_values[:location].should == 'dallas'

          jon.dirty?.should be_false
          jon.save.should be_false

          jon.location.upcase!
          jon.location.should == 'DALLAS'
          jon.original_values[:location].should == 'dallas'

          jon.dirty?.should be_true
          jon.save.should be_true

          jon.location << '!'
          jon.original_values[:location].should == 'DALLAS'
          jon.dirty?.should be_true
        end
      end

      it "should track on :load" do
        repository(ADAPTER) do
          jan = Actor.create!(:name => 'jan', :lead => true)
          jan.lead = false
          jan.original_values[:lead].should be_true
          jan.dirty?.should == true
        end
        repository(ADAPTER) do
          jan = Actor.first
          jan.original_values.should have_key(:lead)
          jan.original_values[:lead].should be_true
          jan.dirty?.should == false
        end
      end

      it "should track on :hash" do
        cv = { 2005 => "Othello" }
        repository(ADAPTER) do
          tom = Actor.create!(:name => 'tom', :cv => cv)
        end
        repository(ADAPTER) do
          tom = Actor.first(:name => 'tom')
          tom.cv.merge!({2006 => "Macbeth"})

          tom.original_values.should have_key(:cv)
          # tom.original_values[:cv].should == cv.hash
          tom.cv.should == { 2005 => "Othello", 2006 => "Macbeth" }
          tom.dirty?.should == true
        end
      end

      it "should track with lazy text fields (#342)" do
        repository(ADAPTER) do
          tim = Actor.create!(:name => 'tim')
        end
        repository(ADAPTER) do
          tim = Actor.first(:name => 'tim')
          tim.notes # make sure they're loaded...
          tim.dirty?.should be_false
          tim.save.should be_false
          tim.notes = "Testing"
          tim.dirty?.should be_true
          tim.save
        end
        repository(ADAPTER) do
          tim = Actor.first(:name => 'tim')
          tim.notes.should == "Testing"
        end
      end
    end

    describe "lazy loading" do
      before :all do
        class RowBoat
          include DataMapper::Resource
          property :id, Serial
          property :notes, String, :lazy => [:notes]
          property :trip_report, String, :lazy => [:notes,:trip]
          property :miles, Integer, :lazy => [:trip]
        end
      end

      before do
        RowBoat.auto_migrate!(ADAPTER)

        repository(ADAPTER) do
          RowBoat.create!(:id => 1, :notes=>'Note',:trip_report=>'Report',:miles=>23)
          RowBoat.create!(:id => 2, :notes=>'Note',:trip_report=>'Report',:miles=>23)
          RowBoat.create!(:id => 3, :notes=>'Note',:trip_report=>'Report',:miles=>23)
        end
      end

      it "should lazy load in context" do
        result = repository(ADAPTER) { RowBoat.all.to_a }

        result[0].attribute_loaded?(:notes).should be_false
        result[0].attribute_loaded?(:trip_report).should be_false
        result[1].attribute_loaded?(:notes).should be_false

        result[0].notes.should_not be_nil

        result[1].attribute_loaded?(:notes).should be_true
        result[1].attribute_loaded?(:trip_report).should be_true
        result[1].attribute_loaded?(:miles).should be_false

        result = repository(ADAPTER) { RowBoat.all.to_a }

        result[0].attribute_loaded?(:trip_report).should be_false
        result[0].attribute_loaded?(:miles).should be_false

        result[1].trip_report.should_not be_nil
        result[2].attribute_loaded?(:miles).should be_true
      end

      it "should lazy load on Property#set" do
        repository(ADAPTER) do
          boat = RowBoat.first
          boat.attribute_loaded?(:notes).should be_false
          boat.notes = 'New Note'
          boat.original_values[:notes].should == "Note"
        end
      end
    end

    describe 'defaults' do
      before :all do
        class Catamaran
          include DataMapper::Resource
          property :id, Serial
          property :name, String

          # Boolean
          property :could_be_bool0, TrueClass, :default => true
          property :could_be_bool1, TrueClass, :default => false
        end

        repository(ADAPTER){ Catamaran.auto_migrate!(ADAPTER) }
      end

      before :each do
        @cat = Catamaran.new
      end

      it "should have defaults" do
        @cat.could_be_bool0.should == true
        @cat.could_be_bool1.should_not be_nil
        @cat.could_be_bool1.should == false

        @cat.name = 'Mary Mayweather'

        repository(ADAPTER) do
          @cat.save

          cat = Catamaran.first
          cat.could_be_bool0.should == true
          cat.could_be_bool1.should_not be_nil
          cat.could_be_bool1.should == false
          cat.destroy
        end

      end

      it "should have defaults even with creates" do
        repository(ADAPTER) do
          Catamaran.create!(:name => 'Jingle All The Way')
          cat = Catamaran.first
          cat.name.should == 'Jingle All The Way'
          cat.could_be_bool0.should == true
          cat.could_be_bool1.should_not be_nil
          cat.could_be_bool1.should == false
        end
      end
    end
  end
end