Reply To: Large amount of custom fields

• VoiD2008

• September 1, 2014 at 5:44 am

I had the same issue and solved it this way:
when I save my post wp generates a serialized array and saves it to post_meta

function update_vol( $post_id ) {
if (get_post_type($post_id)=='volumes'){ //check for my custom post type with tons of data
  $post = get_post($post_id);
  setup_postdata($post);
  $fields = get_fields();
  $field_values = array();
  if( $fields )
    foreach( $fields as $field_name => $value ){
                if (!is_object($value)) // checking for value is not an post object
		   $field_values[$field_name]=$value; // storing data to array
    }
    $field_values_fordb = serialize($field_values); //serializing our array
	$add_check = add_post_meta($post_id,'serialized_',$field_values_fordb,true); //trying to store our values to db using ADD method
	if (!$add_check) update_post_meta($post_id,'serialized_',$field_values_fordb); //if ADD method failed trying UPDATE method
}
wp_reset_postdata()
}
add_action( 'save_post', 'update_vol' );

so at front-end I work only with one meta field ‘serialized_’