require 'spec_helper' describe "1:M (PK overlapping FK)" do before(:all) do class ::Person include DataMapper::Resource extend ConstraintSupport property :id, Serial, :key => true property :audit_id, Integer, :key => true, :min => 0 property :name, String, :required => true has n, :memberships, constraint(:destroy) end class ::Membership include DataMapper::Resource # keep properties unordered property :rank, Integer, :key => true property :person_audit_id, Integer, :min => 0 property :person_id, Integer, :key => true, :min => 0 property :role, String, :required => true belongs_to :person end DataMapper.auto_migrate! end before(:each) do Membership.all.destroy! Person.all.destroy! end describe "Person.accepts_nested_attributes_for(:memberships)" do before(:all) do Person.accepts_nested_attributes_for :memberships end it "should allow to update an existing profile via Person#memberships_attributes" do person1 = Person.create(:id => 1, :audit_id => 10, :name => 'Martin') Membership.create(:person => person1, :rank => 100, :role => 'maintainer') Membership.create(:person => person1, :rank => 101, :role => 'user') person1.reload person2 = Person.create(:id => 2, :audit_id => 20, :name => 'John') Membership.create(:person => person2, :rank => 200, :role => 'contributor') Membership.create(:person => person2, :rank => 201, :role => 'release-manager') person2.reload Person.all.size.should == 2 Membership.all.size.should == 4 person1.memberships_attributes = [{ :rank => 100, :role => 'tester' }] person1.save.should be_true Person.all.map { |p| [p.id, p.audit_id, p.name] }.should == [ [1, 10, 'Martin'], [2, 20, 'John'], ] Membership.all.map { |m| [m.person_id, m.person_audit_id, m.rank, m.role] }.should == [ [1, 10, 100, 'tester'], [1, 10, 101, 'user'], [2, 20, 200, 'contributor'], [2, 20, 201, 'release-manager'], ] end end end