This filter is part of the Update post form action in Bricks.
It enables developers to customize the meta values of existing posts being updated through form submissions.
Functionality:
The bricks/form/update_post/meta_value filter is triggered within the ‘Update post’ action when a post is being updated from a form submission. It allows for altering the meta values based on custom logic or project-specific needs. This includes formatting data, validating content, handling file uploads, or applying conditional transformations to the meta values.
Example Usage:
add_filter(
'bricks/form/update_post/meta_value',
function( $meta_value, $meta_key, $post_id, $form_fields ) {
if ( $meta_key === 'specific_meta_key' ) {
// Custom logic for 'specific_meta_key'
$meta_value = modify_meta_value( $meta_value );
}
// Implement additional custom logic here
return $meta_value;
},
10,
4
);
In this example, the filter modifies the value of a specific meta key (‘specific_meta_key’) using a custom function modify_meta_value.
Parameters:
$meta_value(mixed): The original value of the meta field.$meta_key(string): The key of the meta field being modified.$post_id(int): The ID of the post being updated.$form_fields(array): The form fields data.
Return:
- (mixed): The modified value of the meta field, which will be updated in the post’s meta data.