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Need help with $wpdb->update

Posted on 2011-09-08
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Last Modified: 2012-05-12
I need to increment, by 1, the numbers in two different fields of a table I have in my wordpress database.

I'm not sure how to use $wpdb->update

I'd like to do something like this -

In table 'adshare', increase the counts in fields 'overall' and 'auth_count' by 1, where field 'author' = chris

My attempt (doesn't work)

$wpdb->update( 'adshare', "overall = overall+1, auth_count = auth_count+1","author = 'chris'");

Of course, the 'overall = overall+1' is based on mysql_query("UPDATE share SET....   and this 'update' thing in wp might not do that. Do I need to get the value of 'overall' first, then add the 1, then update?  I'm trying to keep this as efficient as possible, and that would add connections.
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Question by:St_Aug_Beach_Bum
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LVL 7

Assisted Solution

by:boon86
boon86 earned 500 total points
ID: 36508771
can you paste full code of your php with its query so that we can see what can we do here?
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Author Comment

by:St_Aug_Beach_Bum
ID: 36510805
That's pretty much it, it uses the wpdb function in wordpress, here: http://codex.wordpress.org/Class_Reference/wpdb 

I can pull data out of the database like this:

----------------
$test=$wpdb->get_var("SELECT auth_count FROM adshare WHERE author = 'chris'");
echo $test;
---------------

Just don't know how to update/increment like I am trying to do.
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Accepted Solution

by:
St_Aug_Beach_Bum earned 0 total points
ID: 36511420
Ok, I've got it figured out :)

$wpdb->query("UPDATE adshare SET overall = overall+1 , auth_count = auth_count+1 WHERE author = '$author'");
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Author Closing Comment

by:St_Aug_Beach_Bum
ID: 36534725
Thanks for your help
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