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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\textreparser;
abstract class row_based_plugin extends base
{
/**
* @var \phpbb\db\driver\driver_interface
*/
protected $db;
/**
* @var string
*/
protected $table;
/**
* Constructor
*
* @param \phpbb\db\driver\driver_interface $db Database connection
* @param string $table
*/
public function __construct(\phpbb\db\driver\driver_interface $db, $table)
{
$this->db = $db;
$this->table = $table;
}
/**
* Return the name of the column that correspond to each field
*
* @return array
*/
abstract public function get_columns();
/**
* {@inheritdoc}
*/
public function get_max_id()
{
$columns = $this->get_columns();
$sql = 'SELECT MAX(' . $columns['id'] . ') AS max_id FROM ' . $this->table;
$result = $this->db->sql_query($sql);
$max_id = (int) $this->db->sql_fetchfield('max_id');
$this->db->sql_freeresult($result);
return $max_id;
}
/**
* {@inheritdoc}
*/
protected function get_records_by_range($min_id, $max_id)
{
$sql = $this->get_records_by_range_query($min_id, $max_id);
$result = $this->db->sql_query($sql);
$records = $this->db->sql_fetchrowset($result);
$this->db->sql_freeresult($result);
return $records;
}
/**
* Generate the query that retrieves all records for given range
*
* @param integer $min_id Lower bound
* @param integer $max_id Upper bound
* @return string SQL query
*/
protected function get_records_by_range_query($min_id, $max_id)
{
$columns = $this->get_columns();
$fields = array();
foreach ($columns as $field_name => $column_name)
{
if ($column_name === $field_name)
{
$fields[] = $column_name;
}
else
{
$fields[] = $column_name . ' AS ' . $field_name;
}
}
$sql = 'SELECT ' . implode(', ', $fields) . '
FROM ' . $this->table . '
WHERE ' . $columns['id'] . ' BETWEEN ' . $min_id . ' AND ' . $max_id;
return $sql;
}
/**
* {@inheritdoc}
*/
protected function save_record(array $record)
{
$columns = $this->get_columns();
$sql = 'UPDATE ' . $this->table . '
SET ' . $columns['text'] . " = '" . $this->db->sql_escape($record['text']) . "'
WHERE " . $columns['id'] . ' = ' . $record['id'];
$this->db->sql_query($sql);
}
}
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