This is my MySQL query and I have a week problem in this query. I don't know how to apply IF condition with WHERE
clause.
Query:
SELECT
*,
IFNULL((SELECT ur.user_rating FROM user_rating ur
WHERE ur.vid_id = v.id AND ur.user_id = '1000'),'NULL') AS user_rating
FROM videos v
WHERE WEEK(v.video_released_date) = WEEK(NOW())
AND
v.`is_done` = 1
ORDER BY v.admin_listing ASC;
I want OR (how do I apply this condition with where clause?)
IF( WEEK(v.video_released_date) = WEEK(NOW()) , WEEK(NOW()) , WEEK(NOW())-1)
=
IF( WEEK(v.video_released_date) = WEEK(NOW()) , WEEK(NOW()) , WEEK(NOW())-1)
Briefing
If video released date has passed and not match with current week then previous week apply
Myself
When I was tried myself like this they return me whole data
SELECT
*,
IFNULL((SELECT ur.user_rating FROM user_rating ur
WHERE ur.vid_id = v.id AND ur.user_id = '1000'),'NULL') AS user_rating
FROM videos v
WHERE IF(WEEK(v.video_released_date) = WEEK(NOW()),WEEK(NOW()),WEEK(NOW())-1)
= IF(WEEK(v.video_released_date) = WEEK(NOW()),WEEK(NOW()),WEEK(NOW())-1)
AND
v.`is_done` = 1
ORDER BY v.admin_listing ASC;
What am I doing wrong in this query?
Try this -
SELECT *,
IFNULL((SELECT ur.user_rating FROM user_rating ur
WHERE ur.vid_id = v.id AND ur.user_id = '1000'),'NULL') AS user_rating
FROM videos v
WHERE WEEK(v.video_released_date) = IF(WEEK(v.video_released_date) = WEEK(NOW()),WEEK(NOW()),WEEK(NOW())-1)
AND v.is_done = 1
ORDER BY v.admin_listing ASC;
Well it looks like you compare x with x through these IF
.
x = x is "always" true.
Use the CASE WHEN THEN ELSE END construct. You can read more about it here in the documentation.
SELECT *,
IFNULL((SELECT ur.user_rating FROM user_rating ur
WHERE ur.vid_id = v.id AND ur.user_id = '1000'),'NULL') AS user_rating
FROM videos v
WHERE
WEEK(v.video_released_date) =
CASE WHEN WEEK(v.video_released_date) = WEEK(NOW())
THEN WEEK(NOW()) ELSE WEEK(NOW())-1 END
AND
v.`is_done` = 1
ORDER BY v.admin_listing ASC;
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