<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;

class DropPrintRequestsForeignKey extends Migration
{
    public function up()
    {
        if (! $this->db->tableExists('print_requests')) {
            return;
        }

        // Drop the old foreign key if it exists
        try {
            $this->forge->dropForeignKey('print_requests', 'print_requests_class_id_foreign');
        } catch (\Throwable $e) {
            // Already absent.
        }
    }

    public function down()
    {
        if (! $this->db->tableExists('print_requests') || ! $this->db->tableExists('class_sections')) {
            return;
        }

        // Re-add the old foreign key
        $this->forge->addForeignKey('class_id', 'class_sections', 'id', 'CASCADE', 'CASCADE');

        // Process the modifications
        $this->forge->processIndexes('print_requests');
    }
}