A generic term referring to the process of retrieving information from a database.

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196
votes
6answers
62k 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?
22
votes
5answers
41k views

How to display sql query that ran in query?

I have come across a function before that displayed the exact SQL code that was used in a loop for example, but can't remember. Can anybody tell me that function? Cheers
14
votes
4answers
2k views

Show a different number of posts per page depending on context (e.g., homepage, search, archive)

In the Reading Settings, there is place to set the number of posts shown that affects the number of posts shown in all contexts. I'd like to show instead a certain number of posts on the homepage, and ...
13
votes
3answers
12k views

Pagination not working with custom loop

I've got a custom loop that I'm using to display some Real Estate listings that will be available within 60 days. I'm calling it with the following function: <?php $sixtydays = date('Y/m/d', ...
9
votes
1answer
6k views

How to fix pagination for custom loops?

I have added a custom/secondary query to a template file/custom page template; how can I make WordPress use my custom query for pagination, instead of using the main query loop's pagination? Addendum ...
8
votes
6answers
11k 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 ...
7
votes
4answers
2k views

the_date() not working

I am using wordpress 3.2 and I did a query post like this: <?php query_posts("posts_per_page=1post=type&page=post_parent=10");?> Then I try to echo out the date of this post I queried ...
7
votes
3answers
604 views

Order posts (across the whole site) by metadata date

My custom 'Home' page is set to sort my custom posts via the custom date field with this (updated to be custom named) code in functions.php: // sort order for home page add_action('wp', ...
6
votes
6answers
31k views

What SQL Query to do a simple find and replace

Whenever I create a new website I first create a staging site on a subdomain like "stage.domain-name.com". After everything works correctly I export the database, open it in notepad++ and do a ...
6
votes
4answers
13k views

Query multiple meta key values?

How to query for mutiple meta key values with the same key $querystr = " SELECT $wpdb->posts.* FROM $wpdb->posts, $wpdb->postmeta WHERE ...
6
votes
4answers
26k views

Proper way to get page content

I have to get specific page content (like page(12)) I used that : <?php $id=47; $post = get_page($id); echo $post->post_content; ?> Work nice execpt for compatibility with qtranslate ...
5
votes
6answers
3k views

How can I make wp-pagenavi work on a custom query built upon a form submission?

I've also posted this on the wordpress support forums, for scribu's wp-pagenavi plugin: http://wordpress.org/support/topic/plugin-wp-pagenavi-custom-query-form-submit-part-2?replies=1 My situation: ...
5
votes
2answers
1k views

Usage of the new “posts_clauses” filter in Wordpress 3.1?

Just noticed that 3.1 added a new filter to customize queries: posts_clauses. All I could find about it is that instead of using the separate query filters like posts_where or posts_join, you can ...
5
votes
1answer
6k views

Get all image from single page using this query

I'm having some trouble with this sample widget code. I want to get all images (Minus the post thumbnail) from a page called "Gallery" but for some reason this is pulling all uploaded images from the ...
5
votes
1answer
521 views

How to organize and cache additional data associated with terms?

I'm updating a plugin of mine and am have a hard time figuring out the "best way" to build in a specific bit of functionality. The plugin allows users to associate images from their media library to ...
4
votes
3answers
2k views

Optimize Multiple Taxonomy Term MySQL Query?

(Moderator's note: Title was originally: "query/database optimisation") I'm written a function for a custom "filter" search panel that allows users to select terms from up to four custom taxonomies. ...
4
votes
2answers
2k views

Count & Display Database Queries

I'm looking for an solution how I can count and display all queries in a WordPress site. Does anybody know, if there is an good plugin? Otherwise it would be an solution to check the queries on the ...
4
votes
1answer
380 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 ...
4
votes
2answers
392 views

How to display Section for certain time

i am building a News site. I want to display 1 featured post from "prime" category for only few hours. after it should be expired or disappeared from the section. please have a look here u can see ...
4
votes
1answer
996 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
94 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 ...
4
votes
1answer
2k views

restrict_manage_posts not working in 3.3.1

I have noticed my custom taxonomy filters no longer work in the 3.3.1 admin as per these methods: Adding a Taxonomy Filter to Admin List for a Custom Post Type? I also discovered that to filter a ...
4
votes
1answer
575 views

Why does `get_permalink()` produces an add. DB request without $post->filter?

I'm currently working on a custom loop/query where I need to add the permalink of a post to the array of posts I'm retrieving from the DB. Sadly get_permalink() produces one additional DB request ...
4
votes
3answers
484 views

Query custom post type by custom field

General Info I used the plugin WP Types (wp-types.com) to create a custom post type called "artist". In WP Types you can also set another post type as parent post type. This is not possible by ...
4
votes
2answers
191 views

Rearranging posts based on categories

Hey everyone on Stackexchange! I'm trying to find a way to prioritize posts based on a category in a loop, which is sorted by dates. All posts are grouped under their respective dates. The date ...
3
votes
3answers
7k views

Using nextGen Gallery.. how can I call a list of all Gallery Names?

I'm trying to make a nav to access all the different galleries on a single page. Instead of hard-coding all their names out. I was curious if it was possible to make this dynamic and just call all ...
3
votes
3answers
228 views

Compare two numeric custom fields

I use Advanced Custom Fields and have a custompost-type "matches". This post-type contains two fields "goals-made" and "goals-against". I want to query wordpress to show only the matches that were ...
3
votes
1answer
2k 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 ...
3
votes
2answers
765 views

Sort custom post type list table by display name of a user id stored as post meta value

I have a custom post type named domicile. Each post (domicile) has an owner (not the author). Owners are users with a custom role. I store the user id as a post meta value (dmb_owner) for the domicile ...
3
votes
3answers
1k views

Reversing the order of posts AFTER the query is performed

I'm am displaying the last 5 posts of a custom post type 'show'. This gives me the latest post first. <?php $args = array( 'post_type' => 'show', 'posts_per_page' => 5, 'order' ...
3
votes
2answers
2k views

Create pagination and order according to alphabet

is it possible to create an alphabet pagination? as well as alphabet order of a query post??? I can't a solution on this based on the regular queries. I would appreciate any help, thanks in ...
3
votes
1answer
2k views

Using WP_Query - how to display something IF there are no results

I've used WP_Query to query and display events. In some cases, though, there are no events to be displayed and I'd like to display a friendly message when that happens instead of displaying nothing - ...
3
votes
2answers
249 views

Identify which loop you are hooking into; primary or secondary?

What is the most efficient way to determine which loop I'm in? I have a few plugins that alter the query by hooking into various parts of WP_Query::get_posts(), through the usual suspects, ie ...
3
votes
1answer
1k views

Using query_vars filter

I am trying to link out from the WP admin to view posts in a specific way. The url structure for this is example.com/post123/?my-preview=456 /post123/ is the regular permalink for a post. The ...
3
votes
1answer
4k views

How to get comments by post ID?

I have this custom post query to list all the posts within a specific category. For example I have this: $args = array('cat' => 'home','post_type' => 'post')); $post_obj = new WP_Query($args); ...
3
votes
1answer
3k views

Meta Query with AND & OR?

I'm trying to do some filtering for some posts in WP_Query, but I can't seem to get the right condition. Basically what I wanna do, is get posts that have the custom field event_data (sorted by this ...
3
votes
1answer
181 views

How to make an activities stream mixing posts and comments?

What I'm currently trying to make is an activities stream wich list : The posts, the comments, both mixed between them and ordered by date. My idea is to make two queries, but i don't know how to ...
3
votes
1answer
168 views

Why does wordpress still strip my query var?

Im trying to pass a query var to a custom page template with pretty permalinks. So basically i have a page called "albums". And i want to pass a query var to that page called "type". So the ...
3
votes
1answer
156 views

How to query for a week using key => value WP_Query argument notation?

I would like to be able to query for a specific year and week using WP_Query argument notation. I am using this notation as I would like the page to paginate. What's the correct "year" and "week" ...
3
votes
2answers
237 views

Very slow query

This query works, but it takes upwards of 20 seconds to run on a Quad Core dedicated server... How can I optimize this? $slides=get_posts( array('post_type' => 'any', 'numberposts' => 5, ...
3
votes
2answers
497 views

Sort X categories by last update and show image

I want to display X categories, and sort them by last update. I also want to grab the image of the latest post with the category. <img src="<?php echo ...
3
votes
3answers
568 views

Fulltext search in posts sorted by relevancy

I'm building a custom search page and what I need is to sort results by relevancy (eg. occurences of a keyword) Using MySQL docs I've built this query: SELECT ID FROM $wpdb->posts WHERE MATCH ...
2
votes
2answers
602 views

Get a user's most recent post title

If I have a user's ID, what's the best way for me to get the title of that user's most recent post?
2
votes
3answers
3k views

How to use a custom post type as front page?

I would like to set a site's front page to be a single post from a custom post type. I have been able to alter the request for my front page to a Custom Post Type archive with the following code ...
2
votes
2answers
2k views

view queries made?

I know I can use get_num_queries() for the number of queries. However, how can I see what queries Wordpress actually makes? I've tried using $query but that didn't work.
2
votes
1answer
3k views

WordPress Paginate $wpdb->get_results

Due to a complex multisite config, I have a query which combines the posts from two blogs and I would like to paginate the results. I am grateful for any help. I have posted my query. ...
2
votes
3answers
2k views

Custom Select Query with Custom Post Types

Have been trying to figure out the issue with this for the past hour, but hitting a wall. Basically I'm just trying to query my custom post type based on some custom date fields and then displaying ...
2
votes
1answer
104 views

How can I display a specific user's first published post?

I'm looking for a way to display a user's first published post using their unique ID. I have a function that calls a list of specific users using their IDs, and would like to display the date the ...
2
votes
3answers
765 views

Remove [gallery] shortcode altogether

I used remove_shortcode('gallery'); ...the gallery is gone, but the shortcode is visible in the text. How do I remove sitewide? I've searched for sql queries, but no solution fixes my specific ...
2
votes
4answers
3k views

get attachments for all posts of particular post type

I'm making a widget that shows a set of images from recent custom posts. I want to run the following query: SELECT p.* FROM wp_posts p WHERE post_type='attachment' AND post_mime_type LIKE 'image%' ...