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Limit Essential Grid's WP_Query to only include posts with featured images
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<?php | |
/** | |
* Limit Essential Grid's WP_Query to only include posts with featured images | |
* | |
* From https://gist.github.com/cliffordp/fbbaad70b9b8748819ac73f00260ac5e | |
* Similar code for Slider Revolution: https://gist.github.com/cliffordp/9f0d7cc5e86b2a721cd646d953bb1261 | |
* Same Essential Grid code except with additional requirement to be a Featured Event from The Events Calendar: https://gist.github.com/cliffordp/a6aad3c60f469970b1ecb209d85ec755 | |
* | |
* essgrid_get_posts filter is from /wp-content/plugins/essential-grid/includes/base.class.php | |
* | |
* Tested working with version 2.1.0.2 | |
* | |
* Filter hook only applies to Essential Grid > Source > Source Based on Posts, Pages, Custom Posts | |
* | |
* @return array | |
*/ | |
function essgrid_post_based_require_featured_image( $query, $grid_id ) { | |
/* | |
* YOU MUST CHANGE THESE | |
* TO YOUR OWN ESSENTIAL GRID | |
* GRID IDs | |
* !!! | |
*/ | |
$grid_ids_to_affect = array( 1, 2, 14 ); // include IDs of grids to affect | |
// if this grid is not one to affect, do no filtering | |
if ( ! in_array( $grid_id, $grid_ids_to_affect ) ) { | |
return $query; | |
} | |
// get the existing meta_query so we aren't wiping that out | |
if ( ! empty( $query['meta_query'] ) ) { | |
$meta_query = (array) $query[ 'meta_query' ]; | |
} else { | |
$meta_query = array(); | |
} | |
// do the filtering... | |
// has a Featured Image | |
$meta_query[] = array( | |
'key' => '_thumbnail_id', | |
'compare' => 'EXISTS', | |
); | |
$query['meta_query'] = $meta_query; | |
return $query; | |
} | |
add_filter( 'essgrid_get_posts', 'essgrid_post_based_require_featured_image', 10, 2 ); |
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