feadulta/wordpress/migrate_fast.php

<?php
/**
 * Script simple para migrar metadatos - version rapida
 * Ejecutar: php migrate_fast.php
 */

require_once('/var/www/html/wp-load.php');

echo "=== Migracion rapida de metadata ===\n\n";

// Solo procesar AUTORES (el mas importante)
echo "Procesando AUTORES como categorias...\n";

$autores = $wpdb->get_results("
    SELECT meta_value as autor, COUNT(*) as cnt
    FROM wp_postmeta
    WHERE meta_key = 'Autor' AND meta_value != '' AND meta_value IS NOT NULL
    GROUP BY meta_value
    ORDER BY cnt DESC
    LIMIT 100
");

$cat_created = 0;
$assignments = 0;

foreach ($autores as $row) {
    $autor = trim($row->autor);
    if (empty($autor)) continue;
    
    // Crear o encontrar categoria
    $term = get_term_by('name', $autor, 'category');
    if (!$term) {
        $result = wp_insert_term($autor, 'category', array(
            'slug' => sanitize_title($autor)
        ));
        if (is_wp_error($result)) continue;
        $term_id = $result['term_id'];
        $cat_created++;
    } else {
        $term_id = $term->term_id;
    }
    
    // Asignar a posts
    $post_ids = $wpdb->get_col($wpdb->prepare("
        SELECT DISTINCT post_id FROM wp_postmeta 
        WHERE meta_key = 'Autor' AND meta_value = %s
    ", $autor));
    
    foreach ($post_ids as $post_id) {
        wp_set_object_terms($post_id, $term_id, 'category', true);
        $assignments++;
    }
    
    echo "$autor: $row->cnt posts\n";
}

echo "\nCategorias creadas: $cat_created\n";
echo "Asignaciones: $assignments\n";
echo "=== FIN ===\n";