How do I programmatically add items of content to a custom post type?

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I have a custom post type to which I’d like to programmatically import data. I have followed these instructions and these, and I can easily do it for WP typical pages and posts.

However, my custom post type has custom fields for, for example, longitude and latitude. How do I figure how how those names (array keys) should be referred to in the post array?

$defaults = array(
            'comment_status' => 'closed',
            'ping_status' => 'closed',
            'post_author' => $author_id,
            'post_name' => $slug,
            'post_title' => $title,
            'post_status' => 'publish',
            'post_type' => 'custom-post-type',
       longitude => $my_long,   // <- what's the key here?
       latitude  => $my_lat     // <- what's the key here?
            );

$images = array_of_images; // <- how do these get added?

There are about 40 extra fields I have to add data to.

Additionally, each of my items of content has image attachments, and I want to programmatically add those as well (either from a URL or from my local hard drive, whichever approach is best).

As an answer, I’m looking for a very simple, but fully functioning script (or at least fully complete pseudo code) that would take into account all the programmatic steps I need to take to get a post into the database with it’s related image attachments. The result should be the same as if I filled out all the fields, uploaded media, and hit “Publish” from within WordPress.

4 Answers
4

You should first run the wp_insert_post() which will return the post ID. Then use that post ID to add your custom fields. Use add_post_meta() to add the custom fields.

$post_id = wp_insert_post( $args );

add_post_meta( $post_id, 'longitude', $my_long );
add_post_meta( $post_id, 'latitude', $my_lat );

For image attachments, you can refer to this question: How to set featured image to custom post from outside programmatically

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