"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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226
votes
6answers
80k 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?
81
votes
4answers
59k 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 ...
22
votes
5answers
18k 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 ...
17
votes
4answers
9k 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()) : ...
17
votes
3answers
3k 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 ...
14
votes
5answers
25k 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', ...
14
votes
8answers
14k 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 ...
13
votes
5answers
9k 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 ...
12
votes
2answers
17k 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 ...
12
votes
2answers
8k 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 ...
12
votes
3answers
24k views

How to Get All Posts with any post status?

i am creating a frontend dashboard where i need to show all the post by the current user. So i need to show posts with all post status. Mainly published, trashed and the pending. I am now using ...
12
votes
1answer
12k 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
3k 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 ...
11
votes
3answers
562 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 ...
10
votes
6answers
16k 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 ...
10
votes
1answer
13k 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 ...
9
votes
5answers
19k 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 ...
9
votes
1answer
151 views

Should we trust the post globals

@toscho left a comment to this answer which had me thinking again. How much trust should he have in the global scope, specially regarding the post globals like $post. So what? The global variable ...
9
votes
1answer
587 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 ...
9
votes
3answers
241 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 ...
8
votes
4answers
3k 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 ...
8
votes
1answer
20k 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' => ...
8
votes
4answers
21k 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 ...
8
votes
1answer
13k 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 ...
8
votes
3answers
319 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 ...
8
votes
1answer
413 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 ...
7
votes
4answers
2k 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 ...
7
votes
2answers
1k 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 ...
7
votes
2answers
2k 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 ...
7
votes
2answers
2k 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
4answers
6k 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, // ...
7
votes
1answer
4k 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 facing now is handling the taxonomy query. Normally, the wp_query only handle one relationship for tax_query (either AND or ...
6
votes
2answers
214 views

How to force a query conditional?

There is a long-standing WordPress core bug (#16373) in which, if custom query variables are registered and present in the query string, the query will not set is_front_page() true, even if 'page' == ...
6
votes
2answers
362 views

Is it possible to query all posts that don't have an attachment?

I want to get a list of all posts that don't have an attachment and delete them. This question takes about getting all posts that have an attachment, but I want the reverse of it. The brute force ...
6
votes
1answer
7k views

How do I use WP_query with multiple post IDs?

I want to query multiple posts with an array of IDs (note: I am querying a custom post type). Here's what I have, which isn't working: $myarray = array('144', '246'); $args = array( 'post_type' ...
6
votes
1answer
214 views

Inject post (from specific category) between posts in Loop

I would like to add a post (from specific category) between posts in the WordPress Loop (such as 'Sponsors'). Example: P P P S P P S P P S P P How can I achieve this? I am a beginner with coding, so ...
6
votes
1answer
9k views

Custom Taxonomy and Tax_Query

I've been having a lot of trouble getting a WP_Query running with a tax_query on my custom taxonomy. I'm 99.9% sure that my register_taxonomy is correct, as I'm able to tag posts with the right term, ...
6
votes
1answer
57 views

How to add taxonomy filter on the query fly?

I try to add tax query on pre_get_posts hook using following code : // Add custom posts to main query (archive and home) add_action( 'pre_get_posts', 'add_post_types_to_query' ); function ...
6
votes
4answers
1k views

Best way to detect if you are in a SINGLE POST page

So this may seem like a pretty menial thing, but follow me here. I'm trying to add some logic through the pre_get_posts action. This is the entire WP_Query object given to me. (see the end) Things I ...
6
votes
3answers
5k views

Getting Post Comments for post ID using WP_Query() and a Custom Loop?

(Moderator's note: The original title was "Is there a way to get post comments by post ID on a custom loop using WP-Query()?") Hi! I'm running a custom loop using WP_Query, that only displays one ...
6
votes
2answers
2k views

How to set a custom post type to have viewable future posts

I've setup a CPT to act the same ways as posts but used to post event details. Thing is that some of the posts are in the future and such have a future date set on them. Problem is that normal users ...
6
votes
1answer
1k views

Using Wordpress to make a “Product Search” type navigation drilldown

This is somewhat of a follow-up to a question I asked some time ago: Trying to design nice category drilldown with one "held" taxonomy and a repeatable list of categories I've sort of got ...
6
votes
4answers
6k 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 ...
6
votes
1answer
2k 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, ...
5
votes
6answers
13k views

Display all posts in a custom post type, grouped by a custom taxonomy

I’m working on a member page where I use a custom post type with a custom taxonomy. My custom post type is called “member” and my custom taxonomy is called “member_groups”. I want to list all the ...
5
votes
1answer
13k 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 ...
5
votes
1answer
4k 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.
5
votes
2answers
8k 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 ...
5
votes
1answer
15k 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 ...
5
votes
1answer
851 views

how to show posts that are missing a meta_value

How can I build a query to find posts that DO NOT contain a certain meta key or meta value? for example: query_posts( array( 'meta_query' => array( array( 'key' => 'feature', ...