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Filename : Builder.php
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<?php

/**
 * This file is part of CodeIgniter 4 framework.
 *
 * (c) CodeIgniter Foundation <admin@codeigniter.com>
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace CodeIgniter\Database\SQLite3;

use CodeIgniter\Database\BaseBuilder;

/**
 * Builder for SQLite3
 */
class Builder extends BaseBuilder
{
    /**
     * Default installs of SQLite typically do not
     * support limiting delete clauses.
     *
     * @var bool
     */
    protected $canLimitDeletes = false;

    /**
     * Default installs of SQLite do no support
     * limiting update queries in combo with WHERE.
     *
     * @var bool
     */
    protected $canLimitWhereUpdates = false;

    /**
     * ORDER BY random keyword
     *
     * @var array
     */
    protected $randomKeyword = [
        'RANDOM()',
    ];

    /**
     * @var array
     */
    protected $supportedIgnoreStatements = [
        'insert' => 'OR IGNORE',
    ];

    /**
     * Replace statement
     *
     * Generates a platform-specific replace string from the supplied data
     */
    protected function _replace(string $table, array $keys, array $values): string
    {
        return 'INSERT OR ' . parent::_replace($table, $keys, $values);
    }

    /**
     * Generates a platform-specific truncate string from the supplied data
     *
     * If the database does not support the TRUNCATE statement,
     * then this method maps to 'DELETE FROM table'
     */
    protected function _truncate(string $table): string
    {
        return 'DELETE FROM ' . $table;
    }
}