i am reading professional wordpress. their code for uninstalling a plugin is
//build our query to delete our custom table
$sql = "DROP TABLE " . $table_name . ";";
//execute the query deleting the table
$wpdb->query($sql);
require_once(ABSPATH .âwp-admin/includes/upgrade.phpâ);
dbDelta($sql);
my question is why run dbDelta
after $wpdb->query($sql);
This is indeed bizarre. I think they first tried it with
dbDelta
, found it doesn’t work withDROP
queries, and went with a straight$wpdb
query instead. They then just forgot to take out thedbDelta
stuff. It appearsdbDelta
collects creation queries in$cqueries
and insert queries in$iqueries
, but silently ignores the rest. What a lovely function…To be sure, you could ask this question on the book forum, hopefully the authors hang around there. Don’t forget to mention you first asked it here, so we get some publicity!