Redmine

    if params[:copy].present? && @copy_from = Tracker.find_by_id(params[:copy])

      @tracker.copy_from(@copy_from)

    end

  def copy_from(arg, options={})

    return unless arg.present?

    tracker = arg.is_a?(Tracker) ? arg : Tracker.find_by_id(arg.to_s)

    self.attributes = tracker.attributes.dup.except("id", "name", "position")

    self.custom_field_ids = tracker.custom_field_ids.dup

    self.project_ids = tracker.project_ids.dup

    self

  end

<%= select_tag(:copy_workflow_from, content_tag("option") + options_from_collection_for_select(@trackers, :id, :name, @copy_from.try(:id))) %></p>

    <%= link_to l(:button_copy), new_tracker_path(:copy => tracker), :class => 'icon icon-copy' %>

  def test_new_with_copy

    core_fields = ["assigned_to_id", "category_id", "fixed_version_id", "parent_issue_id", "start_date", "due_date"]

    custom_field_ids = custom_field_ids = [1, 2, 6]

    project_ids = [1, 3, 5]

    copy_from = Tracker.find(1)

    copy_from.core_fields = core_fields

    copy_from.custom_field_ids = custom_field_ids

    copy_from.project_ids = project_ids

    copy_from.save

    get :new, :params => {:copy => copy_from.id.to_s}

    assert_response :success

    assert_select 'input[name=?]', 'tracker[name]'

    assert_select 'form' do

      # blank name

      assert_select 'input[name=?][value=""]', 'tracker[name]'

      # core field checked

      copy_from.core_fields.each do |core_field|

        assert_select "input[type=checkbox][name=?][value=#{core_field}][checked=checked]", 'tracker[core_fields][]'

      end

      # core field not checked

      copy_from.disabled_core_fields do |core_field|

        assert_select "input[type=checkbox][name=?][value=#{core_field}]", 'tracker[core_fields][]'

      end

      # custom field checked

      custom_field_ids.each do |custom_field_id|

        assert_select "input[type=checkbox][name=?][value=#{custom_field_id}][checked=checked]", 'tracker[custom_field_ids][]'

      end

      # custom field not checked

      (IssueCustomField.sorted.pluck(:id) - custom_field_ids).each do |custom_field_id|

        assert_select "input[type=checkbox][name=?][value=#{custom_field_id}]", 'tracker[custom_field_ids][]'

      end

      # project checked

      project_ids.each do |project_id|

        assert_select "input[type=checkbox][name=?][value=#{project_id}][checked=checked]", 'tracker[project_ids][]'

      end

      # project not checked

      (Project.all.pluck(:id) - project_ids).each do |project_id|

        assert_select "input[type=checkbox][name=?][value=#{project_id}]", 'tracker[project_ids][]'

      end

      # workflow copy selected

      assert_select 'select[name=?]', 'copy_workflow_from' do

        assert_select 'option[value="1"][selected=selected]'

      end

    end

  end

  def test_copy_from

    tracker = Tracker.find(1)

    copy = Tracker.new.copy_from(tracker)

    assert_nil copy.id

    assert_nil copy.position

    assert_equal '', copy.name

    assert_equal tracker.default_status_id, copy.default_status_id

    assert_equal tracker.is_in_roadmap, copy.is_in_roadmap

    assert_equal tracker.core_fields, copy.core_fields

    assert_equal tracker.description, copy.description

    copy.name = 'Copy'

    assert copy.save

  end

  def test_copy_from_should_copy_custom_fields

    tracker = Tracker.generate!(:custom_field_ids => [1, 2, 6])

    copy = Tracker.new.copy_from(tracker)

    assert_equal [1, 2, 6], copy.custom_field_ids.sort

  end

  def test_copy_from_should_copy_projects

    tracker = Tracker.generate!(:project_ids => [1, 2, 3, 4, 5, 6])

    copy = Tracker.new.copy_from(tracker)

    assert_equal [1, 2, 3, 4, 5, 6], copy.project_ids.sort

  end