Create the relationships model and add the indices. Section 11.1.1
Establish the associations for the relationship model to user. Section 11.1.2
Validate the relationship associations. Section 11.1.3
Add the code and test for followed users. Section 11.1.4
Add code for followers. Seciton 11.1.5
Refactor the rake extension and add the ability to create followed/followers. Section 11.2.1
Stats and a follow form. Up to but not including Listing 11.23
Complete the followed/followers associations and appropriate forms and partials. Section 11.2.2 from Listing11.23
Following and followers pages. Section 11.2.3
Make the follow/unfollow buttons actually work. Section 11.2.4
Ajax the Follow button. Section 11.2.5
Initial test for micrpost feed. Section 11.3.1
First swipe at feed. Listing 11.43 Section 11.3.2
Second pass at it. Listing 11.44, Section 11.3.2
Final try at the from_users_followed_by. Listing 11.45, Section 11.3.2