```ruby
class Post < ActiveRecord::Base
  belongs_to :user
  belongs_to :content, polymorphic: true
  attr_accessible :content
end
```

Add rough description of purpose of Post model
user
```ruby
# Record when a moderator has posted a piece of content
class Post < ActiveRecord::Base
  belongs_to :user
  belongs_to :content, polymorphic: true
  attr_accessible :content
end
```
assistant