Questions tagged [post-meta]

Post meta is a data set containing additional core as well as custom post information.

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13 votes
3 answers
6k views

Custom post meta field effect on the performance on the post

I have the posts which have many custom defined meta fields. On posts I am calling them on requirement using get_post_meta. Means for 10 meta fields I am using it 10 times. Am I doing it right? ...
  • 235
31 votes
5 answers
78k views

How to update custom fields using the wp_insert_post() function?

The WordPress function is used for submitting data programatically. Standard fields to submit to incude the content, excerpt, title, date and many more. What there is no documentation for is how to ...
34 votes
2 answers
37k views

How to hook update_post_meta and delete_post_meta?

I'm still struggling to get my head around this whole hooking into things, so I'm really stuck on trying to do the following task: If update_post_meta is fired then check to see if the meta_key is ...
  • 11.9k
45 votes
7 answers
60k views

Most efficient way to get posts with postmeta

I need to get a bunch of posts with their metadata. Of course you can't get metadata with a standard posts query, so you generally have to do a get_post_custom() for each post. I'm trying with one ...
19 votes
2 answers
60k views

Add "upload media" button in meta box field

I have a custom post which has a meta tag that needs to be using a file upload (for video files). I am wondering, what is the correct way of adding an "Upload" button that points to the WordPress ...
  • 485
133 votes
12 answers
499k views

How do I retrieve the slug of the current page?

I am trying to retrieve the slug of the current WordPress page outside the loop. The title of the page returns with wp_title (), but how can I get the slug? <li> <a href="/slug-of-current-...
  • 1,689
10 votes
1 answer
2k views

What is the index [0] for on post meta fields?

Trying to improve my PHP knowledge through test and try! I am confused on [0] arguments at following WordPress PHP code global $post; $custom = get_post_custom($post->ID); $price = $custom['price']...
  • 483
37 votes
11 answers
26k views

Can the Next/Prev Post links be ordered by menu order or by a meta key?

I have a series of posts that are ordered by a meta_key value. They could also be arranged by menu order, if necessary. The next/prev post links (generated by next_post_link, previous_post_link, or ...
32 votes
3 answers
34k 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 ( $...
  • 341
2 votes
1 answer
5k views

Custom query with category exclusion and post-meta "whitelist"

I have two widgets, one shows News while the other shows everything except News (We'll call the second one Blog). The blog portion is currently working correctly. The News posts are either ...
32 votes
4 answers
70k views

Advanced search form with filters for custom taxonomies and custom fields

I'd like to build an advanced search form for a specific custom post type, having filters for the custom post types custom fields, custom taxonomies, and for a separate custom post types properties (...
  • 623
33 votes
2 answers
8k views

Explanation of update_post_(meta/term)_cache

I was reading over some best practices from 10up and they mention setting these two flags to false in a WP_Query ( depending on what you're querying ): 'update_post_meta_cache' => false: useful ...
  • 19.8k
22 votes
4 answers
14k views

Passing error/warning messages from a meta box to "admin_notices"

I have a simple meta box that updates the post custom fields (using update_post_meta()). How can I send a error or warning message to the next page after the user publishes/updates the post and doesn'...
  • 13.5k
2 votes
1 answer
3k views

How do I retrieve multi-dimensional arrays from the wp_postmeta table, & display on a website?

I would like to retrieve multi-dimensional arrays (that have been created with metaboxes), & display them on the front end of a website using shortcodes. My Question: How do I retrieve multi-...
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66 votes
3 answers
94k 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 ...
  • 807
33 votes
2 answers
58k views

How to extract data from a post meta serialized array?

I found an XML to WP decoder script that stores the data as an array in a custom meta field. What is the best way to extract the information? For example how could I display the "Manufactured in" ...
  • 3,478
32 votes
5 answers
27k views

Post meta vs separate database tables

When developing plugins that requires data storage, what's the pros and cons of using one method or another ? The explanation given in the codex is not detailed: Before jumping in with a whole new ...
47 votes
10 answers
101k views

How to only display posts whose meta_value field 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 ...
  • 707
11 votes
5 answers
22k views

How do I query for posts by partial meta key?

I have a function that stores the "like" status for a post as post meta. I want to associate that "like" with the user that liked it, so I setup a custom field called "like_status_{user_id}" (where {...
4 votes
2 answers
1k views

How to use Post Custom Metadata in Post Titles and Post Permalinks

I am very new to WordPress. How can I use post custom metadata in place of Post Titles, and as the Post Permalink? For example, instead of domain.com/the-post-title, the permalink would be domain.com/$...
  • 135
14 votes
6 answers
41k views

How to make search include data from wp_postmeta?

I have a site using Advanced Custom Fields to create and store various bits of relevant info. These need to be included in the main general search, which by default only searches the title and main ...
3 votes
3 answers
5k views

Why time functions show invalid time zone when using 'c' time format?

These are the functions I use in my theme to display the "entry-meta" which includes published and last modified dates (among others) of an article: // Shows Author and Published Date if ( ! ...
  • 4,461
11 votes
5 answers
29k views

How to get custom post meta using REST API

I am trying to create a REST APIs for my wordpress website which is used for facility listing using wordpress job manager plugin. I have registered my custom post , taxonomies in \plugins\rest-api\...
  • 113
3 votes
2 answers
2k views

How to set author for post AND post attachments

I have multiple author accounts on one of my WordPress installs. Often I will create a post, and set the author to be a different account. However, when I upload images into that post, their ...
  • 676
9 votes
2 answers
57k views

Adding meta tag without plugin

Is it possible to add meta title, meta description, meta keywords in every page without installing plugin? My client require not to install plugin. I am curious about this case, all I know is the ...
10 votes
4 answers
13k views

Orderby meta_value only returns posts that have existing meta_key

I have the following wp_query: $args = array( 'post_type' => 'news', 'orderby' => 'meta_key', 'order' => 'ASC', 'meta_key'=>'custom_author_name', 'post_per_page'=>-...
  • 3,163
3 votes
3 answers
7k views

How to access the post meta of a post that has just been published?

I am using the hook publish_post to run my code where I need the post meta of the just published post. But the post meta value I am looking for is somehow not available at this point of execution. On ...
0 votes
1 answer
3k views

Permalinks using event date (year & month) instead of publication date

The site http://www.bikefun.org is live and working, but the permalinks are not quite right. It is an event calendar site. Events are stored as a custom post type "bf_events", with dates stored as ...
  • 113
1 vote
1 answer
695 views

Setting post meta data to random value during post status transition / on publish

Upon publishing an unpublished draft, I'd like the custom meta value "post views count" to be set to a random variable between 829 and 1013. I am using the code below, which doesn't always work. It ...
36 votes
4 answers
75k views

what is the correct way to compare dates in a WP query_posts meta_query

I have a query_posts call in a WP template. Through the use of the More Fields Plugin I can give the site admin the ability to create an event (custom post type) and then enter a date which is ...
5 votes
3 answers
12k views

Echo all meta keys of a custom-post TYPE

Is there a way to dump a list of all meta keys being used by all posts belonging to a custom post type? I.e., a post-type named foods, each food (ham, spaghetti, chicken), can have a different meta ...
  • 537
9 votes
4 answers
8k views

How to add category to: 'wp-admin/post-new.php'?

I want to have a link to create a new post that sets the category also. I have tried wp-admin/post-new.php?post_category=12 and wp-admin/post-new.php?cat=12, but neither worked. I also tried using ...
  • 226
8 votes
2 answers
4k views

Order by optional meta key?

I'm building the sorting functionality for a custom post type, and I have a custom meta value for "Featured" posts. This value is set when you tick the checkbox, otherwise it is not set. Using the ...
9 votes
2 answers
23k views

Filtering posts by post meta data

I want to filter posts in such a way that only posts, for which get_post_meta($post->ID, "project_cat", true) (it returns a post ID) is equal to my specified value, are shown. Any way to do this? I ...
  • 771
3 votes
1 answer
218 views

Adding an assisting editor box to Post page

I run a multiple author platform and to improve the moderation, I want to add a couple of assisting editors. I want to add a custom box to the Post page where the assisting editor can confirm which ...
0 votes
1 answer
2k views

Front-end update_post_meta snippet displays white screen?

Thanks to @Anu's correction I now have a function to update_post_meta from the front end. Something is wrong in my script however, because with the function below nothing is being displayed on the ...
  • 3,478
16 votes
3 answers
8k views

Why WordPress choose data serialization over json_encode?

In my little age with WordPress, I've seen WordPress itself and its friendly plugins are using PHP serialize() in storing data into db in many cases. But in a recent search I found a serious community ...
2 votes
2 answers
3k views

WP_Query not working as expected for attachments and custom meta_query

If I use get_posts() like so I get a number of results with the value 1 for the my_key meta_key: $posts = get_posts( array( 'post_type' => 'attachment', 'meta_key' => '...
  • 813
26 votes
5 answers
40k views

Can wp_query return posts meta in a single request?

I would like to create a wp_query that would return posts meta inside the posts array. $args = array ( 'post_type' => 'page', 'meta_key' => 'someMetaKeyName', ); // The Query $query = ...
  • 449
9 votes
3 answers
17k views

How to hook a filter to catch get_post_meta when alternate a custom field output?

How to hook a filter to catch get_post_meta when alternate a custom field output? I have fill a custom field(meta data) in a post, just like this: <!--:de-->Nominale spanning<!--:--><...
  • 91
2 votes
2 answers
4k views

Query between two meta values?

How do I limit the query by two custom meta fields, a start date and an end date? This is what my data looks like: meta_key | meta_value | ------------------------| start_date | 20100131 | //Jan ...
  • 61
1 vote
1 answer
1k views

Save both current and new version of post meta

I want to save two versions of my custom meta box data called "sidebar". I want to compare a new and old version of this data later on, so that is why I want to save a copy of the current "sidebar" to ...
  • 331
3 votes
1 answer
9k views

How to display multiple Post meta_key/meta_values by SQL query

I haven't found a solution to displaying multiple postmeta meta_key/meta_values by SQL query of a post. I am using the Advanced Custom Fields (ACF) plugin on another website and trying to pull the ...
  • 33
2 votes
1 answer
1k views

Custom Post Type: Set post_title equal to a custom post type field

I’ve created a custom post type for employees in a company with some fields they have to fill (like E-mail, phone, etc.) and a select box which takes some values from another custom post type called “...
  • 770
2 votes
2 answers
3k views

I can't set meta_key in my custom post type query

I've created a custom post, events, and saved the meta data event_year to each event. I'm trying to get a year's event archive. When I go the the following URL, the meta_key and meta_value are not ...
  • 465
1 vote
1 answer
7k views

Get Advanced Custom Fields values before saving [closed]

Basically, I need to alter the info the user inputs into an advanced custom fields textbox before it is written to the database but I don't know how to grab it. I can only get it after it has been ...
  • 113
1 vote
3 answers
343 views

Grossly inefficient wordpress loops!

I'm working on a site at the moment for an orchestra. The various members need to be listed, according to their instrument. The members have a custom post type of biography and I'm capturing the ...
0 votes
1 answer
2k views

How do I save each option in a multiple select menu as it's own meta_key + meta_value pair?

How do I save each option in a multiple select menu as it's own meta_key + meta_value pair? This is the basic multiple select menu. Note: multiple select menus allow you to select more than one ...
  • 1,163
5 votes
2 answers
3k views

Custom field metabox not showing in back-end

I recently updated my website after a while, and the custom fields meta box is not showing in the editor anymore. It isn't showing under "Screen Options" either. Any ideas why this could be, and how ...
  • 1,112
3 votes
2 answers
1k views

Post metadata deletes itself

I'm using a custom post type for a portfolio. I have a few option in there, bring saved by update_post_meta(), it seems to work fine, but then out of the blue (within the hour), the data deletes its ...