I have a problem. I want to get the featured image url when a post was published.
It works when I update a post, but not when it was published for the first time, because the meta data seems not to be stored in the database at this moment. Even when I use 'wp_insert_post' instead of 'save_post' it does not work.
In my functions.php i check for new/updated posts with:
add_action( 'save_post', 'my_function' );
When a post was updated I read the featured image url by using:
$image_url = get_post_meta( get_post_meta( $post_id, "_thumbnail_id", true ), "_wp_attached_file", true );
Can you help me?
Well, if you want to take attachments from the post you are publishing, save_post is a no go.
Try publish_post
At the moment when publish_post is fired, the post and its attachments already exists in the database and can be accessed.
save_post action hook runs after the data is saved to the database ( wordpress codex ), so this should do it, it works on post publish and post update. A couple of useful links is commented within the code.
// http://codex.wordpress.org/Plugin_API/Action_Reference/save_post
add_action( 'save_post', function ( $post_id ) {
if ( wp_is_post_revision( $post_id ) ) return;
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;
// save_post action is executed on all post actions like publish, trash, auto-draft, etc.
// http://codex.wordpress.org/Post_Status_Transitions
if ( get_post_status( $post_id ) == 'publish' ) {
// http://codex.wordpress.org/Function_Reference/get_post_thumbnail_id
$thumb_id = get_post_thumbnail_id( $post_id );
// http://codex.wordpress.org/Function_Reference/wp_get_attachment_image_src
$thumb_url = wp_get_attachment_image_src( $thumb_id, 'full' );
$thumb_url = $thumb_url ? $thumb_url[0] : false;
}
});
Related
I want to set the permalink slug using the custom field value for the first save only, but it is not working.
The code below changes the slug not only for the first save, but also for every update.
function custom_slug_auto_setting( $slug, $post_ID, $post_status, $post_type, $post_parent, $original_slug ) {
return $_POST['custom_field_title'];
}
add_filter( 'wp_unique_post_slug', 'custom_slug_auto_setting', 10, 6 );
For the second and subsequent saves, I want to keep the slug set for the first save.
I tried using the filter hook for wp_insert_post to specify post_name only for the first save, but that didn't work well either.
Is there any good solution?
Thank you.
save_post or save_post_{$post->post_type} Fires once a post has been saved. The dynamic portion of the hook name, {$post->post_type}, refers to the post type slug.
We need to discard any updates autosave or revision actions. The WordPress autosave system fire every 60 seconds.
#See https://wordpress.org/support/article/revisions/
The $update parameter is supposed to determined whether this is an existing post being updated. It applies more specifically to a post autosave revision. The $update parameter will always be true when firing through wp_publish_post. But that isn't true for its usage in wp_insert_post (See the following wordpress stackexchange answer and comments for more details...).
#See https://wordpress.stackexchange.com/a/185991/190376
In our case, the wp_publish_post function publish a post by transitioning the post status.
#See https://developer.wordpress.org/reference/functions/wp_publish_post/
By additionally crosschecking the post status we can effectively determine whether it is indeed a non-existing post.
If you are calling a function such as wp_update_post that includes the save_post hook, your hooked function will create an infinite loop. To avoid this, unhook your function before calling the function you need, then re-hook it afterward.
#See https://developer.wordpress.org/reference/hooks/save_post/#avoiding-infinite-loops
save_post will fire on post Update (eg: Autosave) or Publish which is why we're runing into an infinite loop.
#See https://wordpress.stackexchange.com/a/19539/190376
<?php
add_action( 'save_post', 'wpso74121743', 10, 3 ); //can be replaced by save_post_{$post->post_type}
if ( ! function_exists( 'wpso74121743' ) ) {
function wpso74121743( $post_id, $post, $update ) {
if ( ! wp_is_post_autosave( $post_id ) && ! wp_is_post_revision( $post_id ) && ! $update && $post->post_status == 'auto-draft' ) {
$override_post_name = sanitize_title( get_post_custom_values( 'custom_field_title', $post_id ), get_the_title( $post_id ) );
add_action( 'save_post', 'wpso74121743', 10, 3 ); //can be replaced by save_post_{$post->post_type}
wp_update_post( array(
'ID' => $post_id,
'post_name' => $self,
) );
add_action( 'save_post', 'wpso74121743', 10, 3 ); //can be replaced by save_post_{$post->post_type}
};
};
};
I translated a post using WPML.
The problem is that it doesn't add a featured image to the translated post.
It takes up too many size to duplicate images using a WPML media transltion,
so I'd like to add a featured image without duplicate to a tranlsated post (wordpress).
Would you please let me know how to solve this problem?
Thank you.
In case there is someone who needs this.
I solved the problem using the foolowing code.
add_action( 'wp_insert_post', 'my_duplicate_on_publish' );
function my_duplicate_on_publish( $post_id ) {
global $post;
// don't save for autosave
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return $post_id;
}
// dont save for revisions
if ( isset( $post->post_type ) && $post->post_type == 'revision' ) {
return $post_id;
}
if ($post->post_type=='your-post-type') {
//we need this to avoid recursion see add_action at the end
remove_action( 'wp_insert_post', 'my_duplicate_on_publish' );
// make duplicates if the post being saved
// #1. itself is not a duplicate of another or
// #2. does not already have translations
$is_translated = apply_filters( 'wpml_element_has_translations', '', $post_id, $post->post_type );
if ( !$is_translated ) {
do_action( 'wpml_admin_make_post_duplicates', $post_id );
}
//must hook again - see remove_action further up
add_action( 'wp_insert_post', 'my_duplicate_on_publish' );
}
}
I am trying to add custom meta and see at "Preview Changes". I can see the changes but also changes apply to the actual post at Front end. I want the changes will update to the actual post when it Publish or Update not at "Preview Changes" click. Please help.
I have followed this plugin.
function my_plugin_save_post( $post_id, $post ) {
if ( $parent_id = wp_is_post_revision( $post_id ) ) {
$parent = get_post( $parent_id );
$my_meta = get_post_meta( $parent->ID, 'my_meta', true );
if ( false !== $my_meta )
add_metadata( 'post', $post_id, 'my_meta', $my_meta );
}
} add_action( 'save_post', 'my_plugin_save_post' );
The following code will prevent your meta data from saving on preview but You won't be able to preview published posts with your metadata. Honestly I'm trying to figure out this situation myself :/
<?php // In your save metabox data function, near the top...
if (isset( $_POST['wp-preview'] ) && 'dopreview' == $_POST['wp-preview'] ) {
if(get_post_status($post_id) == 'publish'){
return; // This way we can still preview draft / scheduled posts
}
}
Honestly, I'd use this code and set your post briefly to draft or private while editing / previewing and publish them as normal when you're done.
i want to call my function when user or admin or another plugin sending publish post.
any hook exist for this ?
i try some hook like publish_post.
but this work just if i put my code in that plugin which sending post.
i want my plugin Independent and when sending post in any plugin or admin or every where .... , my function in my plugin do something.
this is for SEO reason and its hard to say why i want do this.
some code i write
function post_published_notification($post) {
$ID= $post->ID;
$my_post = array(
'ID' => $ID,
'post_title' => "anything"
);
wp_update_post( $my_post );
}
add_action( 'publish_post', 'post_published_notification', 10, 2 );
There's are hook called save_post - do_action( 'save_post', $post_ID, $post, $update );. You could check if $post->post_status is set to published and maybe keep your own record of whether it's had the published status before.
Example on how to use it:
function post_published_notification( $post_ID, $post, $update ) {
if ( $post->post_status == 'publish' && ! get_post_meta( $post_ID, 'published_notification_set', true ) ) {
update_post_meta( $post_ID, 'published_notification_set', 1 );
}
}
add_action( 'save_post', 'post_published_notification', 10, 3 );
I originally wanted to be able to password protect a category. At the very least I wanted it to be password-protected, but preferably a username and password login. Since I have been unsuccessful for days at finding a solution I have now resorted to using WordPress's built-in password protection for posts.
The issue I am having is I will be posting via e-mail and in order to have these posts password-protected I need to login to Wordpress and then manually select password-protected and enter a password in the dashboard.
I would like to be able to have all posts that appear in a specific category be password-protected with the same password by default. Eliminating having to log in to Wordpress and manually select password protect.
I know there is a function <?php post_password_required( $post ); ?> that I need to use but I am not sure how to implement it or where.
Based on this WordPress StackExchange answer. Tested only with a regular dashboard. Publishing via email has to be tested, but I suppose the hook gets called in this kind of posting.
add_action( 'save_post', 'wpse51363_save_post' );
function wpse51363_save_post( $post_id ) {
//Check it's not an auto save routine
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
return;
//Check it's not an auto save routine
if ( wp_is_post_revision( $post_id ) )
return;
//Perform permission checks! For example:
if ( !current_user_can( 'edit_post', $post_id ) )
return;
$term_list = wp_get_post_terms(
$post_id,
'category',
array( 'fields' => 'slugs' )
);
if( in_array ( 'the-category-slug', $term_list ) )
{
// Unhook this function so it doesn't loop infinitely
remove_action( 'save_post', 'wpse51363_save_post' );
// Call wp_update_post update, which calls save_post again.
wp_update_post( array(
'ID' => $post_id,
'post_password' => 'default-password' )
);
// Re-hook this function
add_action( 'save_post', 'wpse51363_save_post' );
}
}
add_filter( 'wp_insert_post_data', function( $data, $postarr ){
if ( 'book' == $data['post_type'] && 'auto-draft' == $data['post_status'] ) {
$data['post_password'] = wp_generate_password();
}
return $data;
}, '99', 2 );