Cake\Database\Query::execute PHP Метод

    public function execute()
    {
        $statement = $this->_connection->run($this);
        $driver = $this->_connection->driver();
        $typeMap = $this->selectTypeMap();
        if ($typeMap->toArray() && $this->_typeCastAttached === false) {
            $this->decorateResults(new FieldTypeConverter($typeMap, $driver));
            $this->_typeCastAttached = true;
        }
        $this->_iterator = $this->_decorateStatement($statement);
        $this->_dirty = false;
        return $this->_iterator;
    }

 /**
  * Test that insert can use expression objects as values.
  *
  * @return void
  */
 public function testInsertExpressionValues()
 {
     $query = new Query($this->connection);
     $query->insert(['title', 'author_id'])->into('articles')->values(['title' => $query->newExpr("SELECT 'jose'"), 'author_id' => 99]);
     $result = $query->execute();
     $result->closeCursor();
     //PDO_SQLSRV returns -1 for successful inserts when using INSERT ... OUTPUT
     if (!$this->connection->driver() instanceof \Cake\Database\Driver\Sqlserver) {
         $this->assertCount(1, $result);
     }
     $result = (new Query($this->connection))->select('*')->from('articles')->where(['author_id' => 99])->execute();
     $this->assertCount(1, $result);
     $expected = ['id' => 4, 'title' => 'jose', 'body' => null, 'author_id' => '99', 'published' => 'N'];
     $this->assertEquals($expected, $result->fetch('assoc'));
     $subquery = new Query($this->connection);
     $subquery->select(['name'])->from('authors')->where(['id' => 1]);
     $query = new Query($this->connection);
     $query->insert(['title', 'author_id'])->into('articles')->values(['title' => $subquery, 'author_id' => 100]);
     $result = $query->execute();
     $result->closeCursor();
     //PDO_SQLSRV returns -1 for successful inserts when using INSERT ... OUTPUT
     if (!$this->connection->driver() instanceof \Cake\Database\Driver\Sqlserver) {
         $this->assertCount(1, $result);
     }
     $result = (new Query($this->connection))->select('*')->from('articles')->where(['author_id' => 100])->execute();
     $this->assertCount(1, $result);
     $expected = ['id' => 5, 'title' => 'mariano', 'body' => null, 'author_id' => '100', 'published' => 'N'];
     $this->assertEquals($expected, $result->fetch('assoc'));
 }