Limiting get_users() results by meta value with LIKE wildcards
|Reported by:||mpwalsh8||Owned by:|
Description (last modified by SergeyBiryukov)
I want to limit the results returned by get_users() to a subset of the users based on some criteria that will be stored in the User Meta table (e.g. all users whose first name begins with M).
Here arr the args I am passing to get_users():
( [include] => [exclude] => [fields] => all_with_meta [meta_key] => last_name [meta_value] => M% [meta_compare] => LIKE )
This is the query the WordPress constructs for me:
[01-Feb-2013 16:01:08 UTC] WP_User_Query Object ( [query_vars] => Array ( [blog_id] => 1 [role] => [meta_key] => last_name [meta_value] => M% [meta_compare] => LIKE [include] => [exclude] => [search] => [search_columns] => Array ( ) [orderby] => login [order] => ASC [offset] => [number] => [count_total] => [fields] => all_with_meta [who] => ) [results] => Array ( ) [total_users] => 0 [query_fields] => wp_users.ID [query_from] => FROM wp_users INNER JOIN wp_usermeta ON (wp_users.ID = wp_usermeta.user_id) [query_where] => WHERE 1=1 AND ( (wp_usermeta.meta_key = 'last_name' AND CAST(wp_usermeta.meta_value AS CHAR) LIKE '%M\\%%') ) [query_orderby] => ORDER BY user_login ASC [query_limit] =>
As you can see, the LIKE clause is escaped and wrapped with SQL wildcard operators. I can't figure out how to prevent this from happening as what I want is "LIKE 'M%'" to be my actually query.
Andrew Nacin wp@… via lists.automattic.com
11:24 am (1 day ago) to wp-hackers
Currently, "LIKE" prepends and appends wildcards, as in %term%. We could add "%LIKE" and "LIKE%", though that would not help with the situation where you want LIKE taken literally, potentially without % wildcards at all. (Such as using _ as a single-character wildcard, or looking for case insensitive matching.) Probably the best way to add to this API would be to allow for a 'like_escape' => false; that would accept your value as provided. If you'd like to submit a ticket (and patch), this can definitely find its way into 3.6.
I have prepared a patch to meta.php which allows escaped LIKE and NOT LIKE meta compares to work properly.