Simplify the sql queries, modify follow() and unfollow() returning value, and add more returned info of getFeed() and getMyFeed().
Simplify the sql queries, modify follow() and unfollow() returning value, and add more returned info of getFeed() and getMyFeed().
Simplify the sql queries, modify follow() and unfollow() returning value, and add more returned info of getFeed() and getMyFeed().