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Questions tagged [pre-get-posts]

Refers to a hook in WordPress Core that can be used to alter the results returned by a WP_Query based database query.

155
votes
5answers
149k 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 ...
30
votes
10answers
22k views

Sort on meta value but include posts that don't have one

I've been modifying the built in WP search using the pre_get_posts filter, allowing the user to sort the posts (including a bunch of custom post types) by different fields. The problem I'm having ...
29
votes
3answers
6k 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 ...
24
votes
3answers
21k views

Can I exclude a post by meta key using pre_get_posts function?

I see many people prefer to use pre_get_posts hook instead of query_posts. The code below works and shows all posts which have meta key "featured" function show_featured_posts ( $query ) { if ( $...
22
votes
2answers
9k 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 ...
21
votes
3answers
6k views

Sticky Posts exceed posts per page limit

I'm using pre_get_posts to adjust the number of posts displayed on my homepage. function lifelounge_query_adjust( $query ) { if ( is_home() ) { set_query_var( 'posts_per_page', 12 ); ...
20
votes
1answer
7k views

Using pre_get_posts on true pages and static front pages

I have done quite extensive research on how to use pre_get_posts on true pages and the static front pages, and it seems that there is no fool proof method. The best option I found to date was from a ...
17
votes
4answers
11k views

Modify Taxonomy pages to exclude items in child taxonomies

I found this question: Theres a way to use $query->set('tax_query' in pre_get_posts filter? which seems to indicate that yes, you can alter the taxonomy query on taxonomy archives via ...
15
votes
2answers
39k views

Theres a way to use $query->set('tax_query' in pre_get_posts filter?

Theres a way to use $query->set('tax_query', ...) in pre_get_posts filter? for example next code is not altering the query. Note that I'm building $taxonomies from and custom search. function ...
8
votes
2answers
5k views

Media library to list images only user uploaded

I want to list images for only user uploaded image. Here is the scenario: Using the image uploader on front end using iframe. I have added upload_files cap to subscriber level users and want them to ...
7
votes
2answers
6k 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
222 views

Post injection - how to exclude the original post

This question refers to @Pieter Goosen´s extensive work about how to alter the main query using the pre_get_posts hook on true pages. It is also referenced in the codex. With his method you are able ...
6
votes
3answers
16k views

How to Change Order of Posts in Admin?

How can I change the order of posts in the admin dashboard, so they display alphabetically according to title, rather than latest first?
6
votes
1answer
2k views

Obliterate the main query and replace it

There are lots of good resources on how to alter the main query, or add secondary loops... But I actually want to completely replace the main query with a different query altogether. I am hijacking ...
6
votes
3answers
4k views

Using meta_query on pre_get_posts to exclude a particular meta_key value

I have a simple filter running on the main query on the front page, it should be excluding all posts with a particular meta value (by only including posts who do not have the meta_key set, or those ...
6
votes
1answer
63 views

Show only posts which can be commented OR have custom meta field

I'd like to exclude posts on the homepage which are closed for comments. This works thanks to this: Show only posts which can be commented Now I'd like to add the possibility for exceptions – to show ...
6
votes
1answer
836 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
1answer
432 views

Order Search Results Page by meta_value If no Value Return Remaining Results

I am trying to order the search results page of my site by a specific meta_key. The catch is I need to return all results even when there's no value in the meta_key The posts are custom post types ...
6
votes
2answers
915 views

sort child pages on admin

I have a hierarchical CPT with the following structure: - parent item 1 - child item 1 - child item 2 - child item 3 - child item 4 - child item 5 - parent item 2 - child item 1 -...
5
votes
2answers
11k views

Include and Exclude Taxonomies From Archives & Feeds Using 'pre_get_posts'

What I am trying to do? My blog uses a custom taxonomy called edition with terms like us-canada (6), eu (7) and india (8) -- term slug (ID). I want to make sure that posts not assigned to any ...
5
votes
1answer
13k views

multiple orderby in pre_get_posts action

I used to be able to sort query results by 2 criteria ("sort results first by status=unsold ASC then by date DESC) like this: add_action( 'pre_get_posts', 'my_get_posts' ); function my_get_posts( $...
5
votes
2answers
3k views

Custom search filter causes menu and query_posts problems

I'm using a custom search filter (using my custom query var type), like so: function fteh_pre_get_posts( $query ){ if( isset( $query->query_vars['type'] ) ) $types = explode( ',', $...
5
votes
1answer
4k views

is_category() in pre_get_posts strange error

I have a function that sets posts_per_page option depending on the category viewed. I discovered and error which I can't really understand: first this is how I get the error: function ...
5
votes
1answer
1k views

How to uniquely identify queries?

Today I was thinking about how to differentiate queries, mainly to create an unique identifier. In the process I played around a bit, see below code. The main idea is to do it depending on the $...
5
votes
1answer
289 views

Custom post type by ID in root folder

i have a custom post type project the url that worked out of the box was: www.myapp.com/project/POST-ID and www.myapp.com/project/POST-SLUG now my client needs the url be available in the ...
5
votes
1answer
5k views

Reduce or prevent calling of update_meta_cache

My theme calls the update_meta_cache() function 58 times per page! This function appears to run the following query based on the post in question: SELECT post_id, meta_key, meta_value -> FROM ...
5
votes
1answer
155 views

complex restriction of items in media library

I have a need to limit items in the media library for users without a specific capability. There are a lot of examples out there for how to limit them to only items that a given user has uploaded, ...
4
votes
2answers
23k views

Prevent pre_get_posts filter on specific post type

I am running into one issue with pre_get_post filter. Actually I have 4 post types. Post, Pages, Events, and Venue. I created one custom field called city for event and venue post type. When ...
4
votes
1answer
3k views

Adding meta_key via pre_get_posts causes navigation to disappear

I'm writing a custom function that allows the posts to be sorted based on a custom field. When the user submits the "sort by" form, the meta_key (as well as orderby and order) parameters by which the ...
4
votes
1answer
9k views

Custom Table Column Sortable by Taxonomy Query

I am looking to add a custom column to a custom post type post listing table in the dashboard. I have read many questions / answers on WPSE, along with this article. Although, it seems like everyone ...
4
votes
3answers
3k views

Archive Listings Filtered by Date Values in a Custom Field/Post Meta?

(Moderator's Note: The original title was "using archive by date with a custom date") I'm adding an additional date to posts as a custom field. Now I want the archive to show posts by the custom date ...
4
votes
1answer
6k views

Changing the meta_query of the main query based on custom query_vars and using pre_get_posts

I've registered custom rewrite rules and query_vars to use for displaying a list of events based on ISO date format. For example when a user requests the URL, http://site.com/by-date/2013-04-04/, my ...
4
votes
1answer
9k views

Using pre_get_posts to rewrite search query to display posts from multiple taxonomies

This seems like it should be straightforward, but I'm stuck on it! If a user searches for 'alice', I would like to show them all posts with the custom taxonomy terms of 'bob' and 'carol', regardless ...
4
votes
1answer
1k views

How-to exclude terms from the main query the most performant way?

This Q is a follow up to this answer on the Q: "How to exclude a specific term for the search?". 4 ways to filter out posts that have a specific term Type | Pro | ...
4
votes
1answer
2k views

Add Custom Post Type to Current Query

I'm trying to create a plugin which adds a new custom post type and it should be shown at the same locations as a normal post (front page, archives etc.). Is there any functions for me to retrieve ...
4
votes
1answer
443 views

pre_get_posts with tax_query causes empty result

I need to adjust the main loop for all archive pages in the following way. I have registered a custom taxonomy "myposttypes". Every single post is assigned to exactly one term of "myposttypes". If it ...
4
votes
1answer
761 views

Include post id[s] into WP_Query()

I'm assigning some posts to some users whom are not the author of those posts. Typically private posts are visible only to the post authors. So, if the author has 3 posts, on his logged in edit.php ...
4
votes
1answer
1k views

Sorting posts that has a meta value first then the rest of the posts

Im using the pre_get_posts hook to customize my query for a custom post type archive. Some of the posts for this custom post type have a meta key mp_micropub_accredited with the meta value of 1 and ...
4
votes
1answer
3k views

Search ONLY by meta key / meta values

I'm almost there on this one. On functions.php i have this: function base_home_product_post_type( $query ) { if($query->is_search() && $_POST['box'] == 'sku') { $query->...
4
votes
1answer
111 views

Sort archive view with pre_get_posts hook

I have function like this: //sorting archive query by pinned posts function archive_sort_pinned($query){ $option = get_option('hsa_story_cats'); $current_category = get_queried_object(); ...
4
votes
2answers
2k views

Slow SQL_CALC_FOUND_ROWS Query

We are experiencing very slow performance with queries that use SQL_CALC_FOUND_ROWS within the admin section of WordPress. We currently have about 125,000 posts on our site and use Varnish to cache ...
3
votes
2answers
11k views

WP_Query orderby post__in remains ineffective in the Loop [closed]

I’m trying to query a custom array of posts for the homepage, trying to maintain the order given in the array. To a certain degree this works fine, WordPress finds the posts, but in the Loop the order ...
3
votes
2answers
3k views

“pre_get_posts” firing on every query

How can I change arguments for the main query only, and not affect other queries? add_filter('pre_get_posts', 'custom_post_count'); function custom_post_count($query){ $query->set('...
3
votes
1answer
11k views

Using pre_get_posts to set posts per page, how do I?

I am trying to use pre_get_posts to set posts per page for a single term within a taxonomy. One thing that is throwing me off is setting the term to apply the pre_get_posts to. Here's my code: ...
3
votes
1answer
6k views

Changing Posts Per Page and offset with pre_get_posts

I have a filter using pre_get_posts to change the number of posts per page from 4 on the news landing page to 8 on all other pages (page 2, 3, etc). However I don't seem to have got the offset correct,...
3
votes
1answer
789 views

WP_Post_List_Table::get_views - Have post counts account for filters?

Toward the top of the edit.php screens there is a list that displays post statuses along with the post count. I believe this is generated by WP_Post_List_Table::get_views. For example All (7) | ...
3
votes
2answers
2k views

pre_get_posts OR relation between taxonomy and author

I have a custom taxonomy called coauthor. On the edit.php screen, I am trying filter and only show posts authored by the current user OR posts coauthored by the current user. I can get the posts ...
3
votes
1answer
628 views

$query->set in pre_get_posts is unintentionally affecting the backend

So, I have a custom post type, 'properties'. I'm using archive-properties.php, and need to set some parameters on the $query. I don't want to use new WP_Query since I ran into some issues where a ...
3
votes
2answers
2k views

How would I use pre_get_posts to query another site for posts in my multisite network?

I have a multisite network of sites which should display blog content from each other if the blog post has a tag with the site name. To gather all posts within the network I use the SWT (Sitewide ...
3
votes
1answer
27 views

How to show more posts on an archive page?

I'd like to show more posts on my custom archive page, but can't seem to figure out the right way to do it. Currently it displays 10, which is the number set in WP Settings and the number I'd like on ...