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/phpbb/textreparser/ -> row_based_plugin.php (source)

   1  <?php
   2  /**
   3  *
   4  * This file is part of the phpBB Forum Software package.
   5  *
   6  * @copyright (c) phpBB Limited <https://www.phpbb.com>
   7  * @license GNU General Public License, version 2 (GPL-2.0)
   8  *
   9  * For full copyright and license information, please see
  10  * the docs/CREDITS.txt file.
  11  *
  12  */
  13  
  14  namespace phpbb\textreparser;
  15  
  16  abstract class row_based_plugin extends base
  17  {
  18      /**
  19      * @var \phpbb\db\driver\driver_interface
  20      */
  21      protected $db;
  22  
  23      /**
  24       * @var string
  25       */
  26      protected $table;
  27  
  28      /**
  29      * Constructor
  30      *
  31      * @param \phpbb\db\driver\driver_interface $db Database connection
  32      * @param string $table
  33      */
  34  	public function __construct(\phpbb\db\driver\driver_interface $db, $table)
  35      {
  36          $this->db = $db;
  37          $this->table = $table;
  38      }
  39  
  40      /**
  41      * Return the name of the column that correspond to each field
  42      *
  43      * @return array
  44      */
  45      abstract public function get_columns();
  46  
  47      /**
  48      * {@inheritdoc}
  49      */
  50  	public function get_max_id()
  51      {
  52          $columns = $this->get_columns();
  53  
  54          $sql = 'SELECT MAX(' . $columns['id'] . ') AS max_id FROM ' . $this->table;
  55          $result = $this->db->sql_query($sql);
  56          $max_id = (int) $this->db->sql_fetchfield('max_id');
  57          $this->db->sql_freeresult($result);
  58  
  59          return $max_id;
  60      }
  61  
  62      /**
  63      * {@inheritdoc}
  64      */
  65  	protected function get_records_by_range($min_id, $max_id)
  66      {
  67          $sql = $this->get_records_by_range_query($min_id, $max_id);
  68          $result = $this->db->sql_query($sql);
  69          $records = $this->db->sql_fetchrowset($result);
  70          $this->db->sql_freeresult($result);
  71  
  72          return $records;
  73      }
  74  
  75      /**
  76      * Generate the query that retrieves all records for given range
  77      *
  78      * @param  integer $min_id Lower bound
  79      * @param  integer $max_id Upper bound
  80      * @return string          SQL query
  81      */
  82  	protected function get_records_by_range_query($min_id, $max_id)
  83      {
  84          $columns = $this->get_columns();
  85          $fields  = array();
  86          foreach ($columns as $field_name => $column_name)
  87          {
  88              if ($column_name === $field_name)
  89              {
  90                  $fields[] = $column_name;
  91              }
  92              else
  93              {
  94                  $fields[] = $column_name . ' AS ' . $field_name;
  95              }
  96          }
  97  
  98          $sql = 'SELECT ' . implode(', ', $fields) . '
  99              FROM ' . $this->table . '
 100              WHERE ' . $columns['id'] . ' BETWEEN ' . $min_id . ' AND ' . $max_id;
 101  
 102          return $sql;
 103      }
 104  
 105      /**
 106      * {@inheritdoc}
 107      */
 108  	protected function save_record(array $record)
 109      {
 110          $columns = $this->get_columns();
 111  
 112          $sql = 'UPDATE ' . $this->table . '
 113              SET ' . $columns['text'] . " = '" . $this->db->sql_escape($record['text']) . "'
 114              WHERE " . $columns['id'] . ' = ' . $record['id'];
 115          $this->db->sql_query($sql);
 116      }
 117  }


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