src/CoreBundle/Contao/Hooks/AbstractContentElementAndModuleCallback.php
private function getFilteredAttributeNames($metaModelId, $allowedTypes = array())
    {
        $attributeNames = array();

        if ($metaModel = $this->factory->getMetaModel($this->factory->translateIdToMetaModelName($metaModelId))) {
            foreach ($metaModel->getAttributes() as $attribute) {
                if (empty($allowedTypes) || in_array($attribute->get('type'), $allowedTypes)) {
                    $attributeNames[$attribute->getColName()] =
                        sprintf(
                            '%s [%s]',
                            $attribute->getName(),
                            $attribute->getColName()
                        );
                }
            }
        }

        return $attributeNames;
    }
private function getFilteredAttributeNames($metaModelId, $allowedTypes = array())
    {
        $attributeNames = array();

        if ($metaModel = $this->factory->getMetaModel($this->factory->translateIdToMetaModelName($metaModelId))) {
            foreach ($metaModel->getAttributes() as $attribute) {
                if (empty($allowedTypes) || in_array($attribute->get('type'), $allowedTypes)) {
                    $attributeNames[$attribute->getColName()] =
                        sprintf(
                            '%s [%s]',
                            $attribute->getName(),
                            $attribute->getColName()
                        );
                }
            }
        }

        return $attributeNames;
    }
Get a list with all allowed attributes for meta description.

If the optional parameter arrTypes is not given, all attributes will be retrieved.

@param int      $metaModelId  The id of the MetaModel from which the attributes shall be retrieved from.

@param string[] $allowedTypes The attribute type names that shall be retrieved (optional).

@return array A list with all found attributes.