Allows inter-project work package hierarchies

[skip ci]

app/models/work_package/validations.rb

@@ -65,7 +65,6 @@ module WorkPackage::Validations
   def validate_parent_constraint
     if self.parent
       errors.add :parent, :cannot_be_milestone if parent.is_milestone?
-      errors.add :parent, :cannot_be_in_another_project if parent.project != project
       errors.add :parent, :cannot_be_in_recycle_bin if parent.deleted?
     end
   end

spec/models/planning_element_spec.rb

@@ -171,20 +171,6 @@ describe PlanningElement do
         planning_element.errors[:parent].should be_present
         planning_element.errors[:parent].should == ["cannot be a milestone"]
       end
-
-      it 'is invalid if parent is in another project' do
-        parent = PlanningElement.new.tap do |pe|
-          pe.send(:assign_attributes, attributes.merge(:project_id => FactoryGirl.build(:project)), :without_protection => true)
-        end
-
-        attributes[:parent] = parent
-        planning_element = PlanningElement.new.tap { |pe| pe.send(:assign_attributes, attributes, :without_protection => true) }
-
-        planning_element.should_not be_valid
-
-        planning_element.errors[:parent].should be_present
-        planning_element.errors[:parent].should == ["cannot be in another project"]
-      end
     end
   end