Use the page slug in a WP_Query?
use pagename= to query by slug. See WP_Query for full list of valid arguments.
wp-query
AJAX search on post pages by custom post type
Instead of ‘cat’ => 12 and $wp_query use ‘category_name’ => slug and get_posts(). Here is a basic example how it works: PHP add_action( ‘wp_loaded’, array ( ‘T5_Ajax_Search’, ‘init’ ) ); /** * Ajaxify the search form. */ class T5_Ajax_Search { /** * The main instance. You can create further instances for unit tests. * @type … Read more
What is “main query”? [duplicate]
Your filter has a bug in it, namely when you call is_main_query, you’re not checking if the passed query is the main query, your checking if the currently active query is the main query, which will always be true. So instead try this: add_action( ‘pre_get_posts’, ‘some_name’); function some_name($query) { if ($query->is_front_page() && $query->is_main_query()) { $query->set( … Read more
Include WP_Query in my own PHP file?
Load WordPress in custom PHP Script: You need to load essential WordPress core functionality in your custom PHP script for WP_Query to work properly. For example, let’s say you have a custom PHP file named my-cron.php and WordPress is installed in the web root, like this: public_html/ index.php my-cron.php <– wp-load.php wp-settings.php … wp-admin/ wp-content/ … Read more
how to show posts that are missing a meta_value
Getting posts without a certain meta key is a little tricky, namely due to the database design and the nature of SQL joins. AFAIK, the most efficient way would be to actually grab the post IDs that do have the meta key, and then exclude them from your query. // get all post IDs that … Read more
The next_posts_link() works only with original $wp_query
next_posts_link and previous_posts_link use the global $wp_query. function get_next_posts_link( $label = null, $max_page = 0 ) { global $paged, $wp_query; http://core.trac.wordpress.org/browser/tags/3.5/wp-includes/link-template.php#L1523 That means you need to do something like this to get those to work correctly. $orig_query = $wp_query; $wp_query = new WP_Query($args); // the rest of your code $wp_query = $orig_query; If you are … Read more
Is it possible to completely stop WP_Query retrieving posts?
At the moment, it is not possible. When ‘pre_get_posts’ runs, is too late to stop WP_Query to perform a query. WordPress itself, when you try to query a taxonomy that does not exists, adds AND (0 = 1) to the WHERE clause of the SQL query, to ensure it returns no results very quickly… There’s … Read more
WP_Query vs get_posts
The difference between get_posts & WP_Query You can view get_posts() as a slimmed down WP_Query. In fact looking at the source: //… prepares query array $r $get_posts = new WP_Query; return $get_posts->query($r); get_posts() use WP_Query, but only returns an array of posts – nothing more. Furthermore it sets: $r[‘no_found_rows’] = true; Normally (by default with … Read more
How to use the_posts_navigation for wp_query and get_posts?
the_posts_navigation() is simply a wrapper function for get_the_posts_navigation() which issimply a wrapper function for paginate_links. The first two functions uses the the same exact parameters that is being used by paginate_links and actually passes it to the latter function as well get_the_posts_navigation() and the_posts_navigation() is good new functions as it eliminates a lot of custom … Read more
How to query posts based on lat-lng coordinate as post meta?
This is a simple mathimatical problem. You will indeed need access to both your longitude and latitude, so save it in a metafield. than you will have to query your posts like this as a sql query. Haven’t got a chance to test it. and or pour it into wordpress. Don’t have access to my … Read more