I’m running in to a bit of a problem.
I have a function called get_press(), it retrieves newest press items. It is inside of a plugin:
class EWPress {
function __construct()
{
load_plugin_textdomain( 'ew', flase, dirname( plugin_basename( __FILE__ ) ) . '/lang' );
add_action( 'wp_enqueue_scripts', array( &$this, 'register_plugin_scripts' ) );
// Add JS var ajaxurl to global namespace
add_action( 'wp_head', array( &$this, 'add_ajax_library' ) );
add_action( 'wp_ajax_get_press', array( &$this, 'get_press' ) );
add_action( 'wp_ajax_nopriv_get_press', array( &$this, 'get_press' ) );
}
public function get_press()
{
$args = array(
'status' => 'publish',
'post_type' => 'press',
'orderby' => 'meta_value',
'meta_key' => 'press_date',
'order' => 'DESC',
'posts_per_page' => 2
);
$query = new WP_Query($args);
return($query->posts);
//echo json_encode($query->posts);
//die();
}
}
If I call this function directly in a template file via: echo EWPress::get_press() the output is completely fine:
Array
(
[0] => WP_Post Object
(
[ID] => 229
[post_author] => 1
[post_date] => 2013-01-18 00:29:58
[post_date_gmt] => 2013-01-18 00:29:58
[post_content] =>
[post_title] => Rundown
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => rundown
[to_ping] =>
[pinged] =>
[post_modified] => 2013-01-18 00:29:58
[post_modified_gmt] => 2013-01-18 00:29:58
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://site.com/?post_type=press&p=229
[menu_order] => 0
[post_type] => press
[post_mime_type] =>
[comment_count] => 0
[filter] => raw
)
[1] => WP_Post Object
(
[ID] => 231
[post_author] => 1
[post_date] => 2013-01-18 00:44:35
[post_date_gmt] => 2013-01-18 00:44:35
[post_content] =>
[post_title] => Clean Plates
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => clean-plates
[to_ping] =>
[pinged] =>
[post_modified] => 2013-01-18 00:44:35
[post_modified_gmt] => 2013-01-18 00:44:35
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://site.com/?post_type=press&p=231
[menu_order] => 0
[post_type] => press
[post_mime_type] =>
[comment_count] => 0
[filter] => raw
)
)
In order to make an AJAX request, I:
- comment out the
echo EWPress::get_press()on the template level - comment out the
return $query->postsin theget_press()function - un-comment the
echo json_encode($query->posts) - un-comment the
die();
However, when I make the AJAX request to the SAME function the returned data is different (namely it is ignoring order = 'ASC' or 'DESC).
AJAX Function:
(function($) {
$(document).ready(function(){
$.ajax({
url: ajaxurl,
type: 'POST',
dataType: 'json',
data: {action: 'get_press'},
complete: function(xhr, textStatus) {
//
},
success: function(data, textStatus, xhr) {
console.log(data);
},
error: function(xhr, textStatus, errorThrown) {
//called when there is an error
}
});
});
})(jQuery);
The console.log:
[Object, Object]
0: Object
ID: 234
comment_count: "0"
comment_status: "closed"
filter: "raw"
guid: "http://site.com/?post_type=press&p=234"
menu_order: 0
ping_status: "closed"
pinged: ""
post_author: "1"
post_content: ""
post_content_filtered: ""
post_date: "2013-01-18 02:33:41"
post_date_gmt: "2013-01-18 02:33:41"
post_excerpt: ""
post_mime_type: ""
post_modified: "2013-01-18 02:33:41"
post_modified_gmt: "2013-01-18 02:33:41"
post_name: "eater"
post_parent: 0
post_password: ""
post_status: "publish"
post_title: "Eater"
post_type: "press"
to_ping: ""
__proto__: Object
1: Object
ID: 231
comment_count: "0"
comment_status: "closed"
filter: "raw"
guid: "http://site.com/?post_type=press&p=231"
menu_order: 0
ping_status: "closed"
pinged: ""
post_author: "1"
post_content: ""
post_content_filtered: ""
post_date: "2013-01-18 00:44:35"
post_date_gmt: "2013-01-18 00:44:35"
post_excerpt: ""
post_mime_type: ""
post_modified: "2013-01-18 00:44:35"
post_modified_gmt: "2013-01-18 00:44:35"
post_name: "clean-plates"
post_parent: 0
post_password: ""
post_status: "publish"
post_title: "Clean Plates"
post_type: "press"
to_ping: ""
__proto__: Object
length: 2
__proto__: Array[0]
Does anyone know why this would be happening?
I believe Milo is right, it’s probably a filter affecting this. Ajax requests look like admin requests (that is,
is_admin()returns true), so it’s possible that something is checking ifis_admin()and adding the filter in those cases.You can set
'suppress_filters' => truein your args array and it will probably work. Note that doing so can prevent a query from being cached, or prevent plugins from doing what they need to with a query. It’s possible that this may not affect you, but still something to keep in mind.pre_get_postsactions can also affect query params.You can try adding
remove_all_actions('pre_get_posts');to your ajax handler beforeWP_Query.If this helps, check actions with
to see what can break WP_Query behavior.
In my case it was Simple Custom Post Order which affected WP_Query in ajax mode.
For some odd reason
WP_Queryis the culprit behind this issue.When doing an AJAX request to a function that returns a
WP_Queryobject, the$query->postsobject completely ignores any of the arguments supplied in$args.A simple work around was to use
get_postsinstead with the same$argsas with theWP_QueryOne unfortunate drawback of this method is the loss of nice features of a
WP_queryobject, such as$query->max_num_pages.This work for me!