Since WordPress 4.1 it is possible to build nested meta, date and tax queries. I’ve not tested it but the code bellow should work. Also, I recommend to replace PHP date()
function with current_time
from WordPress to get the current date taking in account the blog time zone configuration:
After the chat with you, it seems that you just need to use “DATE” as type
argument.
$since = current_time('Y-m-d');
$args = array(
'meta_key' => 'bjab_event_date_start_id',
'category_name' => 'private',
'order' => 'ASC',
'orderby' => 'meta_value',
'meta_query' => array(
'relation' => 'OR',
array(
//event_date_start_id greater or equal to $since
'key' => 'bjab_event_date_start_id',
'value' => $since,
'type' => 'DATE',
'compare' => '>='
),
array(
'key' => 'bjab_event_date_end_id',
'value' => $since,
'type' => 'DATE',
'compare' => '>='
)
)
);
$query = new WP_Query( $args );