"wp-query" ambiguously refers to one of two things. 1) WP_Query is a class native to Wordpress which allows users to query the posts database using a number of criteria. 2) $wp_query is the default object that holds the main query object on each WordPress page.

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275
votes
7answers
101k views

When should you use WP_Query vs query_posts() vs get_posts()?

It seems like half the tutorials in the Codex and around the blogosphere use query_posts() and half use WP_Query. What's the deal?
101
votes
4answers
86k views

When to use WP_query(), query_posts() and pre_get_posts

I read @nacin's You don't know Query yesterday and was sent down a bit of a querying rabbit hole. Before yesterday, I was (wrongly) using query_posts() for all my querying needs. Now I'm a little bit ...
34
votes
5answers
26k views

Using wp_query is it possible to orderby taxonomy?

My question is simple, I'm using WP_Query to retrieve some custom type posts filtering by a taxonomy using tax_query. Now my problem is I would like to orderby the taxonomy, but from documentation ...
22
votes
5answers
44k views

WP_Query with “post_title LIKE 'something%'”?

I need to do a WP_Query with a LIKE on the post_title. I started with this regular WP_Query: $wp_query = new WP_Query( array ( 'post_type' => 'wp_exposants', ...
22
votes
3answers
5k views

Should I use Pre Get Posts or WP_Query

I have the following query which I call in my taxonomy.php template via query_brands_geo('dealers', 'publish', '1', $taxtype, $geo, $brands); This function works perfectly. However after reading ...
20
votes
4answers
11k views

Is it necessary to use wp_reset_query() in a WP_Query call?

I'm using the following code to retrieve posts: <?php $featuredPosts = new WP_Query(); $featuredPosts->query('showposts=5&cat=3'); while ($featuredPosts->have_posts()) : ...
19
votes
2answers
28k views

Meta_query compare operator explanation

I noticed that there are bunch of operator can be use for compare in meta_query. However, I am not quite sure what operator I should use, it is somehow confusing like = and LIKE operator. I would ...
19
votes
3answers
16k views

Query all posts where a meta key does not exist

I am trying to get a query to retrieve all the posts where a specific meta_key does not exist and then create it. I am having problems finding those posts as the query I am testing does not seem to ...
19
votes
3answers
37k views

How to Get All Posts with any post status?

I am creating a front end dashboard where I need to show all the posts by the current user. So, I need to show posts in all states, mainly published, trashed and the pending. I am now using a simple ...
19
votes
9answers
23k views

meta_query with meta values as serialize arrays

I'm working on a project in which I'm creating a custom post type and custom data entered via meta boxes associated with my custom post type. For whatever reason I decided to code the meta boxes in ...
19
votes
5answers
14k views

How to extend WP_Query to include custom table in query?

I have been days over this issue now. Initially it was, how to store a user's follower data in database, for which I got couple of nice recommendations here at WordPress Answers. After, following the ...
17
votes
5answers
30k views

How can I show posts only if meta_value is not empty

Three people have already tried to solve this, and we're coming up nil. I want to show only posts that have a value in the meta_key 'featured_image'. So... if 'featured_image' is not empty, show the ...
16
votes
1answer
34k views

WP_Query - Order results by meta value

I've checked around and haven't seen an answer which works as of yet. I have a WP_Query with the following arguements: $args = array( 'post_status' => 'publish', 'post_type' => ...
15
votes
1answer
25k views

WP_Query by just the id?

In the codex for WP_Query I see you can query by 'page_id=7' for pages or by 'p=7' for posts... is there a way to get a 'post of any post type' by ID? like 'id=7'—that will get it no matter if it's a ...
14
votes
2answers
4k views

Using pre_get_posts with WP_Query

I was reading Stephen Harris's excellent answer to this question regarding the use of WP_query(), query_posts() and pre_get_posts. He says "pre_get_posts is a filter, for altering any query. It is ...
14
votes
1answer
304 views

Should we trust the post globals?

@toscho left a comment to this answer which had me thinking again. How much trust should we have in the global scope, specially regarding the post globals like $post? So what? The global variable ...
12
votes
6answers
21k views

Wp get all the sub pages of the parent using wp query

Here is my code $my_wp_query = new WP_Query(); $all_wp_pages = $my_wp_query->query(array('post_type' => 'page','post_parent'=>$parid,'orderby'=>'title','order'=>'ASC' )); It displays ...
12
votes
3answers
638 views

What is appropriate flow for custom data from URL in WP_Query?

I have multiple stage process that integrates complex faceting into WP queries. Problem is - the deeper I get the more fuzzy I become on how it is supposed to work and I could use a guideline rather ...
12
votes
1answer
17k views

numberposts? showposts? posts_per_page?

So the documentation on the Codex is pretty clear that showposts is deprecated. But that same documentation mentions nothing of numberposts. Instead, posts_per_page is listed. But if we turn to the ...
11
votes
2answers
5k views

Resetting post data to previous loop in nested loops

I'm trying to use nested loops with the posts to posts plugin. The loops both work, but the problem arises after the second nested loop ($issue). I want to access the $publication loop again, but the ...
10
votes
1answer
17k views

Passing and retrieving query vars in wordpress

I have two authors pages, one displays about 5 posts. Then I'm trying to setup another page that will be all of their posts. I have created a template called moreauthorposts.php and I'm trying to ...
10
votes
4answers
9k views

Broken? WP_Query and “attachment” as a post type

I have a gallery attached to a page. On that page, I'm running the following query: $events_gallery = new WP_Query( // Start a new query for our videos array( 'post_parent' => $post->ID, // ...
10
votes
5answers
7k views

Query to sort a list by meta key first (if it exists), and show remaining posts without meta key ordered by title

I'm working on a custom taxonomy term page template where we want the items that are connected to the term sorted by a publication date (custom date field) - and if there are multiple items on the ...
10
votes
1answer
640 views

Why is the loop not empty on some 404s?

I came across a weird issue. Say you access a random url, three or more levels deep: http://example.com/a/b/c http://example.com/a/b/c/d ... Then is_404() is true. So far so good. But for some ...
10
votes
3answers
403 views

Posts with at least 3 tags of a list of tags

There is a set of tags against which posts that have at least 3 of those tags should be matched. Say there is the tags {foo, bar, chocolate, mango, hammock, leaf} I would like to find all posts with ...
10
votes
1answer
290 views

Custom taxonomy query broken after upgrade to 4.4

I just upgraded from 4.2 to 4.4 and now my taxonomy query returns empty. It has been working fine prior to the upgrade. I have registered a custom taxonomy named 'title', which is used by my custom ...
9
votes
5answers
6k views

How to use a custom post type archive as front page?

I'd like to use a custom post type archive as a site's front page, so that http://the_site.com/ is a custom post type archive displayed according to my archive-{post-type}.php file. Ideally I ...
9
votes
5answers
32k views

query_post by title?

is it possible to create a loop of posts using WP_Query or query_posts using the title? ie $args = array('post_title'='LIKE '.$str.'% '); $res = WP_Query($arg); // the loop... // trying this ...
9
votes
3answers
479 views

$GLOBALS['wp_the_query'] vs global $wp_query

What is the difference between $GLOBALS['wp_the_query'] and global $wp_query? Why prefer one over the other?
9
votes
2answers
2k views

WP_Query leaking absurd amounts of memory

Every time I call WP_Query() in the function below, Wordpress leaks 8 megs of memory. And since I call this function a lot, things get hairy pretty quickly... :( I've tried unsetting the resulting ...
9
votes
1answer
702 views

Mixing regular and custom post types (with meta_query) on home page

Not sure how to achieve this. I'm trying to mix standard posts and custom posts on a site homepage but I only want to display the custom posts if a meta value is set. Displaying the posts works fine ...
8
votes
3answers
340 views

Ignoring initial articles (like 'a', 'an' or 'the') when sorting queries?

I'm currently trying to output a list of music titles and would like to have the sorting ignore (but still display) the initial article of the title. For example if I had a list of bands it will be ...
8
votes
2answers
15k views

Nested meta_query with multiple relation keys

I am curious whether Wordpress is able to run nested meta_query, with each having different relation keys? As of Wordpress 3.0, tax_query is able to perform this function; I'm wondering whether this ...
8
votes
4answers
5k views

How to merge two queries together

I am trying to order the posts in a category by showing the posts with images first and then posts without images last. I have managed to do that by running two queries and now I want to merge the two ...
8
votes
3answers
722 views

Can I force WP_Query to return no results?

I'm working on a website with a search feature that allows users to search through a lot of post meta. There is a specific search pattern that I would like to forcibly return no results for. The ...
7
votes
2answers
28k views

How to get an array of post data from wp_query result?

When run a query with WP_Query method, I got an object. I understand that I can then do the loop to display stuffs. But, my goal is not to display anything, instead, I want to get some post data by ...
7
votes
1answer
5k views

How do I check if a post has a post thumbnail in WP_Query?

I want to grab the 5 most recent posts that have thumbnails.
7
votes
1answer
23k views

How to store and receive variables in WP sessions?

I have a form with some checkboxes and inputboxes selectboxes and it shows what the user wants via an ajax call. The problem is that when the user click on the item and the detail page is shown and ...
7
votes
2answers
2k views

How to prevent execution of default query, while preserving ability to use WP_Query in template?

PROBLEM: I'am trying to prevent execution of default WordPress query for custom category template. I have found a possible solution, but looks like it preventing execution of all post queries: ...
7
votes
2answers
6k views

Using a custom WP_Query with get_template_part loop

I have a query for a custom post type: <?php $paged = (get_query_var('paged')) ? get_query_var('paged') : 1; $books = new WP_Query(array( 'post_type' => 'wiki', 'posts_per_page' => ...
7
votes
2answers
3k views

What is “main query”? [duplicate]

Possible Duplicate: How to know which one is the main query? I'm curious to know what is the so called "main query"? What I have is two queries on front page. if (have_posts()) : while ...
7
votes
2answers
7k views

Multiple relationship for multiple tax_query in WP_Query

I want to use the WP_Query() class to filter some of my posts. The problem I am facing now is handling the taxonomy query. Normally, the WP_Query() only handle one relationship for tax_query() (either ...
7
votes
4answers
7k views

Querying posts from multiple sites in a network?

I realize there have been a few questions which dance around the solution I am after but I believe I am looking for something specific. This is actually a two part question: 1) My goal is to have ...
7
votes
1answer
3k views

WPML with WP_Query serving up all 3 languages [closed]

I've got something about this on the WPML support forums, but I figured I could ask here as well. Here's the important info: I'm running a WP Multisite setup with custom post types, custom fields, ...
7
votes
0answers
56 views

Wordpress retrieving meta data for all custom post types in list view

Im having an issue in WP where php is dying, ive increased memory but the process jumps to 100% cpu usage then dies and apache throws a 500 error. Ive tried to get apache to log something, or php / ...
6
votes
1answer
15k views

“tax_query” parameter not working with WP_Query

I have a custom post type called 'episode'. Attached to 'episode' I have a custom taxonomy called 'video_type' that contains two terms: "bonus-footage" and "episode"; "episode" contains two child ...
6
votes
2answers
26k views

How to print the excuted sql right after its execution

I am searching for a way by which i can print the executed sql query just after the : $wpdb->query( $wpdb->prepare("INSERT INTO tbl_watchprosite ...
6
votes
1answer
27k views

wp query to get child pages of current page

Can anyone please help me to with the wp_query. I am making a template file/loop to create and archive page of the current page children pages. This query needs to be automatic as I am using in on ...
6
votes
1answer
3k views

WP_Query vs get_posts

I have read a number of questions on SE regarding these but I still can't figure the exact difference wrt usage. Would it be true to say that I would probably use WP_Query for the majority of ...
6
votes
1answer
683 views

Wordpress get_posts function, 1300 lines long

I'm just getting started learning about the WordPress Core. WordPress's codebase is the first large codebase that I've looked thoroughly into. The get_posts method in wp-includes/query.php is 1300 ...