You are here

class Condition in Zircon Profile 8

Same name in this branch
  1. 8 core/lib/Drupal/Core/Condition/Annotation/Condition.php \Drupal\Core\Condition\Annotation\Condition
  2. 8 core/lib/Drupal/Core/Database/Query/Condition.php \Drupal\Core\Database\Query\Condition
  3. 8 core/lib/Drupal/Core/Config/Entity/Query/Condition.php \Drupal\Core\Config\Entity\Query\Condition
  4. 8 core/lib/Drupal/Core/Entity/KeyValueStore/Query/Condition.php \Drupal\Core\Entity\KeyValueStore\Query\Condition
  5. 8 core/lib/Drupal/Core/Entity/Query/Sql/Condition.php \Drupal\Core\Entity\Query\Sql\Condition
  6. 8 core/lib/Drupal/Core/Entity/Query/Null/Condition.php \Drupal\Core\Entity\Query\Null\Condition
  7. 8 core/lib/Drupal/Core/Entity/Query/Sql/pgsql/Condition.php \Drupal\Core\Entity\Query\Sql\pgsql\Condition
Same name and namespace in other branches
  1. 8.0 core/lib/Drupal/Core/Entity/Query/Sql/Condition.php \Drupal\Core\Entity\Query\Sql\Condition

Implements entity query conditions for SQL databases.

Hierarchy

Expanded class hierarchy of Condition

1 file declares its use of Condition
Condition.php in core/lib/Drupal/Core/Entity/Query/Sql/pgsql/Condition.php
Contains \Drupal\Core\Entity\Query\Sql\pgsql\Condition.
3 string references to 'Condition'
ConditionAggregate::compile in core/lib/Drupal/Core/Entity/Query/Sql/ConditionAggregate.php
Compiles this conditional clause.
core.data_types.schema.yml in core/config/schema/core.data_types.schema.yml
core/config/schema/core.data_types.schema.yml
QueryBase::conditionGroupFactory in core/lib/Drupal/Core/Entity/Query/QueryBase.php
Creates an object holding a group of conditions.

File

core/lib/Drupal/Core/Entity/Query/Sql/Condition.php, line 18
Contains \Drupal\Core\Entity\Query\Sql\Condition.

Namespace

Drupal\Core\Entity\Query\Sql
View source
class Condition extends ConditionBase {

  /**
   * The SQL entity query object this condition belongs to.
   *
   * @var \Drupal\Core\Entity\Query\Sql\Query
   */
  protected $query;

  /**
   * {@inheritdoc}
   */
  public function compile($conditionContainer) {

    // If this is not the top level condition group then the sql query is
    // added to the $conditionContainer object by this function itself. The
    // SQL query object is only necessary to pass to Query::addField() so it
    // can join tables as necessary. On the other hand, conditions need to be
    // added to the $conditionContainer object to keep grouping.
    $sql_query = $conditionContainer instanceof SelectInterface ? $conditionContainer : $conditionContainer->sqlQuery;
    $tables = $this->query
      ->getTables($sql_query);
    foreach ($this->conditions as $condition) {
      if ($condition['field'] instanceof ConditionInterface) {
        $sql_condition = new SqlCondition($condition['field']
          ->getConjunction());

        // Add the SQL query to the object before calling this method again.
        $sql_condition->sqlQuery = $sql_query;
        $condition['field']
          ->compile($sql_condition);
        $conditionContainer
          ->condition($sql_condition);
      }
      else {
        $type = strtoupper($this->conjunction) == 'OR' || $condition['operator'] == 'IS NULL' ? 'LEFT' : 'INNER';
        $field = $tables
          ->addField($condition['field'], $type, $condition['langcode']);
        $condition['real_field'] = $field;
        static::translateCondition($condition, $sql_query, $tables
          ->isFieldCaseSensitive($condition['field']));

        // Add the translated conditions back to the condition container.
        if (isset($condition['where']) && isset($condition['where_args'])) {
          $conditionContainer
            ->where($condition['where'], $condition['where_args']);
        }
        else {
          $conditionContainer
            ->condition($field, $condition['value'], $condition['operator']);
        }
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function exists($field, $langcode = NULL) {
    return $this
      ->condition($field, NULL, 'IS NOT NULL', $langcode);
  }

  /**
   * {@inheritdoc}
   */
  public function notExists($field, $langcode = NULL) {
    return $this
      ->condition($field, NULL, 'IS NULL', $langcode);
  }

  /**
   * Translates the string operators to SQL equivalents.
   *
   * @param array $condition
   *   The condition array.
   * @param \Drupal\Core\Database\Query\SelectInterface $sql_query
   *   Select query instance.
   * @param bool|null $case_sensitive
   *   If the condition should be case sensitive or not, NULL if the field does
   *   not define it.
   *
   * @see \Drupal\Core\Database\Query\ConditionInterface::condition()
   */
  public static function translateCondition(&$condition, SelectInterface $sql_query, $case_sensitive) {

    // // There is nothing we can do for IN ().
    if (is_array($condition['value'])) {
      return;
    }

    // Ensure that the default operator is set to simplify the cases below.
    if (empty($condition['operator'])) {
      $condition['operator'] = '=';
    }
    switch ($condition['operator']) {
      case '=':

        // If a field explicitly requests that queries should not be case
        // sensitive, use the LIKE operator, otherwise keep =.
        if ($case_sensitive === FALSE) {
          $condition['value'] = $sql_query
            ->escapeLike($condition['value']);
          $condition['operator'] = 'LIKE';
        }
        break;
      case '<>':

        // If a field explicitly requests that queries should not be case
        // sensitive, use the NOT LIKE operator, otherwise keep <>.
        if ($case_sensitive === FALSE) {
          $condition['value'] = $sql_query
            ->escapeLike($condition['value']);
          $condition['operator'] = 'NOT LIKE';
        }
        break;
      case 'STARTS_WITH':
        if ($case_sensitive) {
          $condition['operator'] = 'LIKE BINARY';
        }
        else {
          $condition['operator'] = 'LIKE';
        }
        $condition['value'] = $sql_query
          ->escapeLike($condition['value']) . '%';
        break;
      case 'CONTAINS':
        if ($case_sensitive) {
          $condition['operator'] = 'LIKE BINARY';
        }
        else {
          $condition['operator'] = 'LIKE';
        }
        $condition['value'] = '%' . $sql_query
          ->escapeLike($condition['value']) . '%';
        break;
      case 'ENDS_WITH':
        if ($case_sensitive) {
          $condition['operator'] = 'LIKE BINARY';
        }
        else {
          $condition['operator'] = 'LIKE';
        }
        $condition['value'] = '%' . $sql_query
          ->escapeLike($condition['value']);
        break;
    }
  }

}

Members

Namesort descending Modifiers Type Description Overrides
Condition::$query protected property The SQL entity query object this condition belongs to. Overrides ConditionFundamentals::$query
Condition::compile public function Compiles this conditional clause. Overrides ConditionInterface::compile
Condition::exists public function Queries for the existence of a field. Overrides ConditionInterface::exists
Condition::notExists public function Queries for the existence of a field. Overrides ConditionInterface::notExists
Condition::translateCondition public static function Translates the string operators to SQL equivalents. 1
ConditionBase::condition public function Adds a condition. Overrides ConditionInterface::condition
ConditionFundamentals::$conditions protected property Array of conditions.
ConditionFundamentals::$conjunction protected property The conjunction of this condition group. The value is one of the following:
ConditionFundamentals::$namespaces protected property List of potential namespaces of the classes belonging to this condition.
ConditionFundamentals::conditions public function
ConditionFundamentals::count public function
ConditionFundamentals::getConjunction public function
ConditionFundamentals::__clone public function Implements the magic __clone function.
ConditionFundamentals::__construct public function Constructs a Condition object.