mysql select count(column) where sum(column) > value - mysql

Question

I'm trying to query $wpdb to get back an int value of the number of users in a custom table who have recorded a number of hours volunteer work above a set target - these hours need to have been moderated ( value set to = 1 ) - I have this so far:
EDIT - updated to use consistent {} around php variables in query --
$target = get_post_meta($post->ID, 'target', true) ? (int)get_post_meta($post->ID, 'target', true) : 100;
$awards = $wpdb->get_var("
SELECT user_id
FROM {$this->options['rewards_logging']}
WHERE moderated = 1 AND reward_id = {$post->ID}
GROUP BY user_id
HAVING sum(hours) > {$target}
");
Which returns the correct value of '0' if none of the hours are approved ( moderated = 0 ), however as soon as one of those users hours are approved, this query returns the count of all the users who have logged more than the target hours ( whether they have been approved or not ).
Any pointers!
Cheers
Ray

Answer 1

Seems I was trying to get back a single variable using $wpdb->get_var, when I really needed the whole result set:
$awards = $wpdb->get_results("
SELECT user_id
FROM {$this->options['rewards_logging']}
WHERE moderated = 1 AND reward_id = {$post->ID}
GROUP BY user_id
HAVING sum(hours) > {$target}
");
Then I can check over the data and display a result - etc...:
if ( count($awards) > 0 ) {
#var_dump($awards);
echo '<span class="awards-notice">'.count($awards).'</span>';
} else {
echo '-';
}