src/Helper/ViewCombinations.php
protected function saveToCache()
    {
        // Pretty print only came available with php 5.4.
        $flags = 0;
        if (defined('JSON_PRETTY_PRINT')) {
            $flags = JSON_PRETTY_PRINT;
        }

        return $this->container->getCache()->save(
            $this->calculateCacheKey(),
            json_encode(
                array(
                    'information' => $this->information,
                    'tableMap'    => $this->tableMap,
                    'parentMap'   => $this->parentMap,
                    'childMap'    => $this->childMap
                ),
                $flags
            )
        );
    }
protected function saveToCache()
    {
        // Pretty print only came available with php 5.4.
        $flags = 0;
        if (defined('JSON_PRETTY_PRINT')) {
            $flags = JSON_PRETTY_PRINT;
        }

        return $this->container->getCache()->save(
            $this->calculateCacheKey(),
            json_encode(
                array(
                    'information' => $this->information,
                    'tableMap'    => $this->tableMap,
                    'parentMap'   => $this->parentMap,
                    'childMap'    => $this->childMap
                ),
                $flags
            )
        );
    }
Try to load the combinations from cache.

@return bool