Question

Goal: Get values which are unique in $resultSecond

So I have two objects.

$result and $resultSecond

I want to get values which are unique to $resultSecond and are NOT in the $result.

I tried to use array_diff().
It did not work as they are objects. I think.

Below is the code by which I am getting the data.

$result = db_query("
SELECT entity_id FROM field_data_field_date
WHERE bundle='postit' AND field_date_value > ".$customvishaltime." ");

$resultSecond = db_query("
SELECT entity_id FROM field_data_field_days
WHERE bundle='postit' AND field_days_value > ".$customvishaltime." ");

As per drupal the return of db_query is a prepared statement object. I have no clue what this means.

Reference:

For db_query
http://api.drupal.org/api/drupal/includes–database–database.inc/function/db_query/7

• Have made changes as requested.

Answer 1

You are better off doing this as a left join query:

$result = db_query("SELECT q2.entity_id 
                    FROM (
                           SELECT entity_id FROM field_data_field_days
                           WHERE bundle='postit' AND field_days_value > %f
                          ) AS q2 LEFT JOIN (

                           SELECT entity_id FROM field_data_field_date
                           WHERE bundle='postit' AND field_date_value > %f

                      ) AS q1 ON q2.entity_id = q1.entity_id

                    WHERE q1.entity_id IS NULL", $customvishaltime, $customvishaltime);