/**
* Extracts the model's attributes, per JSON API spec.
*
* @param array $data
* @param EntityMetadata $metadata
* @return array
*/
protected function extractAttributes(array $data, EntityMetadata $metadata)
{
$flattened = [];
if (!isset($data['attributes']) || !is_array($data['attributes'])) {
return $flattened;
}
$keyMap = array_flip(array_keys($data['attributes']));
foreach ($metadata->getAttributes() as $key => $attrMeta) {
if (!isset($keyMap[$key])) {
continue;
}
$flattened[$key] = $data['attributes'][$key];
}
return $flattened;
}
/**
* Validates entity attributes on EntityMetadata.
*
* @param EntityMetadata $metadata
* @param MetadataFactory $mf
* @return bool
* @throws MetadataException
*/
public function validateMetadataAttributes(EntityMetadata $metadata, MetadataFactory $mf)
{
foreach ($metadata->getAttributes() as $key => $attribute) {
if ($key != $attribute->key) {
throw MetadataException::invalidMetadata($metadata->type, sprintf('Attribute key mismtach. "%s" !== "%s"', $key, $attribute->key));
}
if (false === $this->isFieldKeyValid($attribute->key)) {
throw MetadataException::invalidMetadata($metadata->type, sprintf('The attribute key "%s" is invalid based on the configured name format "%s"', $attribute->key, $this->config->getFieldKeyFormat()));
}
if (false === $this->typeFactory->hasType($attribute->dataType)) {
throw MetadataException::invalidMetadata($metadata->type, sprintf('The data type "%s" for attribute "%s" is invalid', $attribute->dataType, $attribute->key));
}
if (true === $metadata->isChildEntity()) {
$parent = $mf->getMetadataForType($metadata->extends);
if ($parent->hasAttribute($attribute->key)) {
throw MetadataException::invalidMetadata($metadata->type, sprintf('Parent entity type "%s" already contains attribute field "%s"', $parent->type, $attribute->key));
}
}
// @todo Determine how to validate object and array
$todo = ['object', 'array'];
if (in_array($attribute->dataType, $todo)) {
throw MetadataException::invalidMetadata($metadata->type, 'NYI: Object and array attribute types still need expanding!!');
}
if (true === $attribute->isCalculated()) {
if (false === class_exists($attribute->calculated['class']) || false === method_exists($attribute->calculated['class'], $attribute->calculated['method'])) {
throw MetadataException::invalidMetadata($metadata->type, sprintf('The attribute field "%s" is calculated, but was unable to find method "%s:%s"', $attribute->key, $attribute->calculated['class'], $attribute->calculated['method']));
}
}
}
return true;
}
