Migrate existing media. about windows-azure-storage

[twDuke]

This works, I take no responsibility for broken databases etc etc. I'm a php noob as well, so code might be so so.

It goes through all attachment posts and add the azure storage meta data.
Probably simple to re-add some of the code i deleted from the plugin if you want to transfer the files from local to azure if you need that.

<?php

if (!function_exists('windows_azure_storage_wp_update_attachment_metadata')) {
    echo "Cant find Windows Azure Storage plugin functions</br>";
    die();
}

$posts = get_posts(array('post_type' => "attachment", "posts_per_page" => 10));

foreach ($posts as $post) {
    $name = $post->post_title . " " . $post->ID;
    echo "Migrating " . $name . "</br>";

    $existingAzureMeta = get_post_meta($post->ID, "windows_azure_storage_info", true);
    if (isset($existingAzureMeta) && empty($existingAzureMeta) == false) {
        echo $name . " already migrated";
        echo "</br></br></br></br>";
        continue;
    }

    $file = get_post_meta($post->ID, "_wp_attached_file", true);

    $data = array(
        "data" =>
            array(
                "file" => $file
            ));
    $result = migrateMedia($data, $post->ID);
    echo json_encode($result);
    echo "</br></br></br></br>";
}

function migrateMedia($data, $post_id)
{
    $default_azure_storage_account_container_name = \Windows_Azure_Helper::get_default_container();
    $upload_file_name = get_attached_file($post_id, true);

    // Get upload directory.
    $upload_dir = wp_upload_dir();
    $upload_dir['subdir'] = ltrim($upload_dir['subdir'], '/');

    // Prepare blob name.
    $relative_file_name = ('' === $upload_dir['subdir']) ?
        basename($upload_file_name) :
        str_replace($upload_dir['basedir'] . '/', '', $upload_file_name);

    $data['file'] = $upload_file_name;

    $url = sprintf('%1$s/%2$s',
        untrailingslashit(WindowsAzureStorageUtil::get_storage_url_base()),
        $relative_file_name
    );

    $data['url'] = $url;

    $thumbnails = array();

    delete_post_meta($post_id, 'windows_azure_storage_info');

    add_post_meta(
        $post_id, 'windows_azure_storage_info',
        array(
            'container' => $default_azure_storage_account_container_name,
            'blob' => $relative_file_name,
            'url' => $url,
            'thumbnails' => $thumbnails
        )
    );

    return $data;
}