Update post meta data wordpress

I have a post in my WordPress website, which has lot of custom fields. I have an Excel sheet with "post link" - "custom field data" combination. That custom field (video URL) is already set for each post, but now I need to change and update those links based on the Excel sheet. I don't have a "post_id - post meta data" combination, just link and appropriate meta data value. … [Read more...] about Update post meta data (custom field) by post link

function process_meta( $ID, $post ) { if (get_post_meta($ID, 'my_post_meta_field', true)) { // do something } } add_action('publish_post', 'process_meta', 10, 2); The problem is that post meta fields have not yet been saved to the database when this hook (or any others that I'm aware of) fires, so unless a post draft has already been saved, my_post_meta_field always appears empty at this point in my code. … [Read more...] about How do I access post meta data when publishing a new post in Gutenberg?

foreach ( $ls_up_votes as $key => $value ){ var_dump($key,$value); if ( $key == $currentusr ){ unset( $ls_up_votes[$key] ); } } When I add the user input 2 times, the unset commands should remove the previous array that was added by the same user and add the new one, instead its adding all 2 times.Here is what I am getting: … [Read more...] about wordpress simple post multi rating with post_meta and user_meta

(EDIT: FWIW, I know I could just save an array directly to post_meta and it'd be serialized and magic would happen but I just like the idea of having the data stored as JSON. If there isn't an easy, elegant solution I'll cave, but I'm very much hoping there is an easy, elegant solution!) … [Read more...] about WordPress is stripping escape backslashes from JSON strings in post_meta

Key Takeaways: Custom field data can be added to a post in the “Custom Fields” section of the Post Editor, or programmatically using update_post_meta(). update_post_meta() is also the function to change a custom field’s value for a specific post. Once stored, custom field data can be accessed using get_post_meta(). This function always requires a post ID; in The Loop, you can find this ID with get_the_ID(), but outside it you’ll need to use other methods. The final noteworthy function for working with custom field data is delete_post_meta(), which destroys a given custom field’s data for a given post. Creating attractive user interfaces for users to input and change custom fields is difficult and labor-intensive in WordPress. Several good plugins and projects exist to solve the problem, and it’s worth using those before attempting the process by hand. … [Read more...] about How to Create and Use WordPress Custom Fields • WPShout