Update your query while checking for thumbnail '$query->has_post_thumbnail();'. The wording is perhaps not super clear, as I dont think its a PHPPHP The web scripting language in which WordPress is primarily architected. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Teen builds a spaceship and gets stuck on Mars; "Girl Next Door" uses his prototype to rescue him and also gets stuck on Mars. Asking for help, clarification, or responding to other answers. The WordPress revisions system stores a record of each saved draft or published update. Actions are functions performed when a certain event occurs in WordPress. Performance improvements, code optimization, and are considered enhancements, not defects. You might try getting the data you need directly from the DB with $wpdb->get_var (). Not the answer you're looking for? I have added featured image already. WordPress requires PHP 5.6.20 or higher 8.1+. Used By Changelog User Contributed Notes Feedback Feedback Parameters $post int | WP_Post Optional Post ID or WP_Post object. This site is not affiliated with the WordPress Foundation in any way. You need to use get_field () instead. Theres lots of ways to contribute: Core uses Slackfor real-time communication. Is there any particular reason to only include 3 out of the 6 trigonometry functions? WordPress seems to have changed it database structure since this question was answered on this site. When looking for help on a project or program, try starting by reaching out to them! The Core Development Team builds WordPress. Reopening this to keep an eye on it for dev notes. Moving to the 5.1 milestone due to the WordPress 5.0 focus on the new why does music become less harmonic if we transpose it down to the extreme low end of the piano? Thank you for your helps. Trac ticket: If you want title to link to post thumbnail instead of first attachment, then something like this should help: You find further information how to customize the output of wp_get_attachment_link() in the codex: http://codex.wordpress.org/Function_Reference/wp_get_attachment_link . EIDT: Just as the title link goes to the attachment page of the first image, i want the thumbnail to do the same. However, adding a filter to get_post_thumbnail_id() before the post meta lookup seems like a fine enhancement. We can accomplish this using an if statement to check if the featured image URL is set, and if it is not, we can display the default image instead. Actions are functions performed when a certain event occurs in WordPress. labels and reserved post types for CPTUI*. Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. I cannot merge two rows to unite the Post with its image URL. It only takes a minute to sign up. In short, doing some type checks/casts prevents any potential trouble, regardless of PHP version. They provide a way for functions to modify data of other functions. The width and height of the image can also be specified using the width and height attributes of the
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element. The return value for a non-existing post was changed to false instead of an empty string. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. The key principle needed to create this MySQL query was the self join. PHPPHP The web scripting language in which WordPress is primarily architected. Bumping, as this needs further consideration as to whether it's the correct solution. To be able to define a post thumbnail (featured image), you need to activate this feature - add_theme_support ( 'post-thumbnails' ) in the theme functions.php file. Thanks for contributing an answer to Stack Overflow! Definitely something that we should standardize somehow (but without breaking any plugins). Streamline your WordPress projects and add new capabilities to your blogging toolbox! this needs a filter, so the user can override this by the attachment of his choosing, such as an Advanced Custom Fields image attached to the post. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Unlike Actions, filters are meant to work in an isolated manner, and should never have side effects such as affecting global variables and output. When using the_post_thumbnail () or related functions, the 'post-thumbnail' image size is used by default, though a different size can be specified instead as needed. Anyone can join and participate or listen in! They provide a way for functions to modify data of other functions. Description. WordPress requires PHP 5.6.20 or higher is beginning to throw a lot more notices for type mismatches, and later fatal errors. The idea combines concepts of what in the past may have achieved with shortcodes, custom HTML, and embed discovery into a single consistent API and user experience. Idiom for someone acting extremely out of character, Can you pack these pentacubes to form a rectangular block with at least one odd side length other the side whose length must be a multiple of 5. Fixes #23983. In WordPress theme and development, hooks are functions that can be applied to an action or a Filter in WordPress. Contributors live all over the world, so there are discussions happening at all hours of the day. In WordPress 5.9, new hooksHooks In WordPress theme and development, hooks are functions that can be applied to an action or a Filter in WordPress. https://codex.wordpress.org/Plugin_API/Hooks, https://codex.wordpress.org/Taxonomies#Default_Taxonomies. Insert records of user Selected Object without knowing object first. It passes the following parameters: In WP 5.9, some static strings were replaced with additional label options to allow developers further flexibility for customizing the Edit {taxonomyTaxonomy A taxonomy is a way to group things together. Is there any particular reason to only include 3 out of the 6 trigonometry functions? If it is set (i.e., if the post has a featured image), the featured image is displayed using an
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element with the src attribute set to the value of the $feat_image variable. A bug is an error or unexpected result. Performance improvements, code optimization, and are considered enhancements, not defects. Filters allow you to modify certain functions. They are the counterpart to Actions. If there is no post thumbnail, it returns false. Is it possible to "get" quaternions without specifically postulating them? The revision system allows you to see what changes were made in each revision by dragging a slider (or using the Next/Previous buttons).

would use WordPress' function for getting the attachements link using the post-thumbnail as link. View the logs. If the post does not have a featured image, it displays a default image instead. Default 'post-thumbnail'. I have searched, but nothing came from it but proving the opposite of your (collective) postulations. Learn more about Stack Overflow the company, and our products. You are trying to get the data based on the value of post_id and meta_value, so this can be achieved by using Self JOIN. Here's the code which solved it. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Publishing dev notes is particularly important when plugin/theme authors and WordPress developers need to be aware of those changes.In general, all dev notes are compiled into a Field Guide at the beginning of the release candidate phase. Connect and share knowledge within a single location that is structured and easy to search. Allowing get_the_title to be filterable doesn't confuse people either, does it? Sometimes WordPress doesn't deliver all the functionality we need, so there are WordPress PHP functions to help us, and luckily there are built-in WordPress PHP functions to get attachment URL by post id. When using the_post_thumbnail () or related functions, the 'post-thumbnail' image size is used by default, though a different size . 585), Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Mysql join query retrieving profile images of users with ids from other table, Retrieve wordpress posts with featured image via SQL, Query a table to retrieve image info based on album id passed via url in php, how to fetch wp_posts details with source and image, Query to get product details and associated product image, PHP MySQL Select ID from one table and photo from another, How to get Multiple images against ID (FK) from two tables, How to get post title, description and image in single query. This website stores cookies on your computer. There have been so many cases over the years where I've desired to override the post thumbnail behavior by specifying an alternative post image. Find centralized, trusted content and collaborate around the technologies you use most. Hey First add this line into your function.php file add_image_size ( 'custom-size', 120, 140 ); Then call custom-size like this <?php $thumb_id = get_post_thumbnail_id ( $id ); if ( '' != $thumb_id ) { $thumb_url = wp_get_attachment_image_src ( $thumb_id, 'custom-size', true ); $image = $thumb_url [0]; }?> <img src="<?php echo $image;?>"> Hooking directly into get_post_meta would confuse people, but allowing a function return value to be filterable shouldn't. I have defined on functions.php: What is the problem? To be able to define a post thumbnail (featured image), you need to activate this feature - add_theme_support( 'post-thumbnails' ) in the theme functions.php file. Created for both bug reports and feature development on the bug tracker. Committed via https://core.trac.wordpress.org/changeset/52028. WordPress considers both a post and the post's featured image as two separate posts, which seems to make it impossible to create a SELECT query putting the post and post's image URL into the same row, like this: How do you merge two rows in a MySQL table which have no column with a common value? By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. To get the entries (attachments) we use function get_posts(). Core development meetings are every Wednesday at 20:00 UTC in the #core channel on Slack. Filters allow you to modify certain functions. Display Child Pages title & content on Parent Page, How to get Custom Menu in Query Posts WordPress. Default: null $size string | int [] Optional Image size. This is what I get: The idea combines concepts of what in the past may have achieved with shortcodes, custom HTML, and embed discovery into a single consistent API and user experience. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. return types based on the same justification mentioned above? What do gun control advocates mean when they say "Owning a gun makes you more likely to be a victim of a violent crime."? It's always very helpful to check the used function in codex and scroll to the bottom, where you can find related functions: http://codex.wordpress.org/Function_Reference/get_attachment_link#Related. View the logs. 1 Using the_field () will try to echo the result. '' i want to get the thumbnail attached to the post. I believe this would bypass WP caching (I could be wrong on this). This filter exposes the$post_statusobject to allow to return eithertrueorfalsedepending on their needs. Is Logistic Regression a classification or prediction model? I searched around Google but cant find any details on PHP 8.1 introducing type errors on function returns. They are the counterpart to Actions. Use get_the_post_thumbnail_url () to get the URL of thumbnail. Post thumbnail ID (which can be 0 if the thumbnail is not set), or false if the post does not exist. Dev notes are published on Make/Core blog during the beta phase of WordPress release cycle. Making statements based on opinion; back them up with references or personal experience. I prompt an AI into generating something; who created it: me, the AI, or the AI's author? The function wp_get_attachment_url() is used to retrieve the URL for the featured image of the post. Gets ID of WP attachment (image). Additional dev notesdev note Each important change in WordPress Core is documented in a developers note, (usually called dev note). Dev notes are published on Make/Core blog during the beta phase of WordPress release cycle. See my response to raunak-gupta below.