Condition.php in Drupal driver for SQL Server and SQL Azure 3.0.x

Namespace

Drupal\Driver\Database\sqlsrv

File

drivers/lib/Drupal/Driver/Database/sqlsrv/Condition.php

<?php

namespace Drupal\Driver\Database\sqlsrv;

use Drupal\Core\Database\Connection as DatabaseConnection;
use Drupal\Core\Database\Query\Condition as QueryCondition;
use Drupal\Core\Database\Query\PlaceholderInterface;

/**
 * @addtogroup database
 * @{
 */
class Condition extends QueryCondition {

  /**
   * {@inheritdoc}
   *
   * Overridden to replace REGEXP expressions.
   * Should this move to Condition::condition()?
   */
  public function compile(DatabaseConnection $connection, PlaceholderInterface $queryPlaceholder) {

    // Find any REGEXP conditions and turn them into function calls.
    foreach ($this->conditions as &$condition) {
      if (isset($condition['operator'])) {
        if ($condition['operator'] == 'REGEXP' || $condition['operator'] == 'NOT REGEXP') {
          $placeholder = ':db_condition_placeholder_' . $queryPlaceholder
            ->nextPlaceholder();
          $field_fragment = $connection
            ->escapeField($condition['field']);
          $comparison = $condition['operator'] == 'REGEXP' ? '1' : '0';
          $condition['field'] = "REGEXP({$placeholder}, {$field_fragment}) = {$comparison}";
          $condition['operator'] = NULL;
          $condition['value'] = [
            $placeholder => $condition['value'],
          ];
        }
        elseif ($condition['operator'] == 'LIKE' || $condition['operator'] == 'NOT LIKE') {
          $condition['value'] = strtr($condition['value'], [
            '[' => '[[]',
            '\\%' => '[%]',
            '\\_' => '[_]',
            '\\\\' => '\\',
          ]);
        }
      }
    }
    parent::compile($connection, $queryPlaceholder);
  }

  /**
   * {@inheritdoc}
   *
   * Overridden to replace REGEXP expressions.
   * Needs to be tested for complex nested expressions.
   */
  public function where($snippet, $args = []) {
    $operator = NULL;
    if (strpos($snippet, " NOT REGEXP ") !== FALSE) {
      $operator = ' NOT REGEXP ';
    }
    elseif (strpos($snippet, " REGEXP ") !== FALSE) {
      $operator = ' REGEXP ';
    }
    if ($operator !== NULL) {
      $fragments = explode($operator, $snippet);
      $field = $fragments[0];
      $value = $fragments[1];
      $comparison = $operator == ' REGEXP ' ? '1' : '0';
      $snippet = "REGEXP({$value}, {$field}) = {$comparison}";
      $operator = NULL;
    }
    $this->conditions[] = [
      'field' => $snippet,
      'value' => $args,
      'operator' => $operator,
    ];
    $this->changed = TRUE;
    return $this;
  }

}

/**
 * @} End of "addtogroup database".
 */

Classes

Name	Description
Condition