Question

I’m using two tables. First (friendlist), which contains users who are on the list of friends and the other table (members) that contains the basic data of the users.

Friendlist looks like:

     id    |  myid  |    date     | user
 -----------------------------------------
    001    | 50624  |  2010-01-01 | 32009 
    002    | 41009  |  2010-05-05 | 50624
    003    | 50624  |  2010-03-02 | 23007

The column “myid” contains members who added other users (those from column “user”) to their frindlist. I want to get the list of all users that I have added to list and those who add me to their friendlist.

In this example, if my id is 50624, the list would look like:

| allfriends  |
---------------
    32009
    41009
    23007

Then I need to check all users from “allfriend” list with data from the table “members”. I want to get only the users with status 1.

The members table looks like:

   id   |   status   |   photo    
--------------------------------
  32009 |     0      |   1.jpg
  41009 |     1      |   2.jpg
  23007 |     1      |   3.jpg      

How this mysql query should look like?
Thanks for any help.

Answer 1

SELECT user AS allfriends
FROM friendlist
INNER JOIN members
ON user = id
WHERE myid = 50624 AND status = 1
UNION
SELECT myid AS allfriends
FROM friendlist
INNER JOIN members
ON user = id
WHERE user = 50624 AND status = 1`