Select::compile

public Select::compile(Connection $connection, PlaceholderInterface $queryPlaceholder)

Compiles the saved conditions for later retrieval.

This method does not return anything, but simply prepares data to be retrieved via __toString() and arguments().

Parameters

$connection: The database connection for which to compile the conditionals.

$queryPlaceholder: The query this condition belongs to. If not given, the current query is used.

Overrides QueryConditionTrait::compile

File

core/lib/Drupal/Core/Database/Query/Select.php, line 227

Class

Select: Query builder for SELECT statements.

Namespace

Drupal\Core\Database\Query

Code

public function compile(Connection $connection, PlaceholderInterface $queryPlaceholder) {
  $this->condition->compile($connection, $queryPlaceholder);
  $this->having->compile($connection, $queryPlaceholder);

  foreach ($this->tables as $table) {
    // If this table is a subquery, compile it recursively.
    if ($table['table'] instanceof SelectInterface) {
      $table['table']->compile($connection, $queryPlaceholder);
    }
    // Make sure join conditions are also compiled.
    if (!empty($table['condition']) && $table['condition'] instanceof ConditionInterface) {
      $table['condition']->compile($connection, $queryPlaceholder);
    }
  }

  // If there are any dependent queries to UNION, compile it recursively.
  foreach ($this->union as $union) {
    $union['query']->compile($connection, $queryPlaceholder);
  }
}

Links:

https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Database%21Query%21Select.php/function/Select%3A%3Acompile/8.2.x

doc_Drupal

2016-10-29 09:41:14

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