Question

There is a table reservations in mysql database in the below format.

id | customer_id | user_id | date_booked
1  | 1           | 1       | 2012-11-5

I want to get the count of customers for a particular User. so I wrote query

select count(*), user_id, customer_id,date_booked from reservations where user_id=1 group by customer_id

This fetches results in desired way. But date_booked , I get the first value recorded. i.e., If there are 4 records for a customer with id 2 , It fetches 1st record’s date_booked value. I want the latest value , So I improved the query like below

select count(*), user_id, customer_id,max(date_booked) from reservations where user_id=1 group by customer_id

This fetches highest date recorded. This is still not the result set I want to fetch. I want the latest date but that should be less that current date (today).

Is there a way to write condition like this

max(date_booked)<date(now())

I want to fetch max date but less than today. I want to achieve this in CakePHP. If someone can help with Query I can write it cakePHP format.

Please improve the question if necessary.

Answer 1

select  count(*),a.user_id,a.customer_id,
   IF(max(a.date_booked)>now(), b.date_booked, max(a.date_booked)) as date_booked
from reservations a left join 
   (select max(date_booked) as date_booked,customer_id 
        from reservations where date_booked < now() group by customer_id) b
on a.customer_id=b.customer_id
where a.user_id=1 
group by customer_id