Eric Wood Eric Wood - 5 months ago 70
PHP Question

Sort WP_Query by ACF Datepicker

I have a “Upcoming Events” page, and a “Past Events” page. Each event has a custom field called “event_date”.

I want to create a loop that displays all of the events greater than today. I've taken a look through these articles, but couldn't get it to work:
http://support.advancedcustomfields.com/forums/topic/how-do-i-filter-and-sort-event-posts-with-start-and-end-date/

https://wordpress.org/support/topic/plugin-advanced-custom-fields-sorting-by-date-picker

wordpress advanced custom fields order posts by date-picker

From what I’ve gathered in the three links above, I would put this in my functions.php file:

// CREATE UNIX TIME STAMP FROM DATE PICKER
function custom_unixtimesamp ( $post_id ) {
if ( get_post_type( $post_id ) == 'event_type' ) {
$event_date = get_post_meta($post_id, 'event_date', true);

if($event_date) {
$dateparts = explode('/', $event_date);
$newdate1 = strtotime(date('d.m.Y H:i:s', strtotime($dateparts[1].'/'.$dateparts[0].'/'.$dateparts[2])));
update_post_meta($post_id, 'unixstartdate', $newdate1 );
}
}
}
add_action( 'save_post', 'custom_unixtimesamp', 100, 2);


Then I would add something like this to my page template:

<?php
$today = time();
$args = array(
'post_type' => 'event_type',
'posts_per_page' => 5,
'meta_query' => array(
array(
'key' => 'unixstartdate',
'compare' => '>=',
'value' => $today,
)
),
'meta_key' => 'event_date',
'orderby' => 'meta_value',
'order' => 'ASC',
);

$query = new WP_Query( $args );
$event_type = $query->posts;
?>

<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>


Right now that’s not turning up any results. My post-type is called “event_type”, and the key is “event_date”.

Any thoughts on where I’m going wrong?

Answer

I found a solution here thanks to svsdnb.

https://wordpress.org/support/topic/query-date-array-to-display-future-events-only

Instead of having to convert the timestamp in functions.php, there is a way to do this specifically with ACF where you use

current_time('Ymd')

instead of

 $today = date ('Ymd')

Here's what I've ended up with (and it seems to be working, and includes events that happen today):

<?php 
$today = current_time('Ymd');
$args = array(
    'post_type' => 'event_type',
    'post_status' => 'publish',
    'posts_per_page' => '0',
    'meta_query' => array(
        array(
            'key' => 'event_date',
            'compare' => '>=', // Upcoming Events - Greater than or equal to today
            'value' => $today,
        )
    ),
    'meta_key' => 'event_date',
    'orderby' => 'meta_value',
    'order' => 'ASC',
    );

$query = new WP_Query( $args );
if ( $query->have_posts() ) : while ( $query->have_posts() ) : $query->the_post();
?>