function Condition::compile

Compiles this conditional clause.

Parameters

$query: The query object this conditional clause belongs to.

Overrides ConditionInterface::compile

File

core/lib/Drupal/Core/Entity/Query/Sql/Condition.php, line 38

Class

Condition

Implements entity query conditions for SQL databases.

Namespace

Code

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 : $this->sqlQuery;
  $tables = $this->query
    ->getTables($sql_query);
  foreach ($this->conditions as $condition) {
    if ($condition['field'] instanceof ConditionInterface) {
      $sql_condition = $sql_query->getConnection()
        ->condition($condition['field']->getConjunction());
      // Add the SQL query to the object before calling this method again.
      $condition['field']->sqlQuery = $sql_query;
      $condition['field']->nestedInsideOrCondition = $this->nestedInsideOrCondition || strtoupper($this->conjunction) === 'OR';
      $condition['field']->compile($sql_condition);
      $conditionContainer->condition($sql_condition);
    }
    else {
      $type = $this->nestedInsideOrCondition || strtoupper($this->conjunction) === 'OR' || $condition['operator'] === 'IS NULL' ? 'LEFT' : 'INNER';
      $field = $tables->addField($condition['field'], $type, $condition['langcode']);
      // If the field is trying to query on %delta for a single value field
      // then the only supported delta is 0. No other value than 0 makes
      // sense. \Drupal\Core\Entity\Query\Sql\Tables::addField() returns 0 as
      // the field name for single value fields when querying on their %delta.
      if ($field === 0) {
        if ($condition['value'] != 0) {
          $conditionContainer->alwaysFalse();
        }
        continue;
      }
      $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']);
      }
    }
  }
}