Question

I have two models here, courses and studyunits, where a studyunit has content for a course.

Here are the two models:

class Studyunit < ActiveRecord::Base
  attr_accessible :name
  has_and_belongs_to_many :courses

class Course < ActiveRecord::Base
  attr_accessible :name
  has_and_belongs_to_many :studyunits

The issue is that adding studyunits to courses seems to update the course. studyunits attribute, but not studyunit.courses. Excerpt of the rspec code:

before(:each) do
  course.studyunits << studyunit
  Studyunit.connection.clear_query_cache
 end

it "should be associated with a course" do
  course.studyunits.first.should_not eql(nil)
  studyunit.courses.first.should_not eql(nil)
end

The first condition passes, the second fails. How to solve this? I need to access both sides in my code. I tried clearing the query cache as per this thread, but it didn’t solve the issue.

Answer 1

Are you sure this doesn’t just have to do with caching? I suspect it does. Try this code instead:

it "should be associated with a course" do
  course.studyunits(true).first.should_not eql(nil)
  studyunit.courses(true).first.should_not eql(nil)
end