/**
* @param ResourceTransformer $transformer
* @param $entity
* @param Field $field
* @param Context $context
* @return array
* @throws InvalidPropertyException
*/
protected function resolvePath(ResourceTransformer $transformer, $entity, Field $field, Context $context)
{
$path = $this->splitPathParameters($field->getName());
$name = array_pop($path);
// If the water is deep enough, we need to first fetch the corresponding entity.
// We will NOT create the entity if it doesn't exist.
// Relationships support this functionality. Regular setters do not.
if (count($path) > 0) {
$entity = $this->resolveChildPath($transformer, $entity, $path, $field, $context);
}
list($name, $parameters) = $this->getPropertyNameAndParameters($transformer, $name, $context, $field, $entity);
return [$entity, $name, $parameters];
}
/**
* @param ResourceTransformer $transformer
* @param mixed $entity
* @param Field $field
* @param Context $context
* @return mixed
* @throws InvalidPropertyException
*/
public function resolveProperty(ResourceTransformer $transformer, $entity, Field $field, Context $context)
{
$path = $this->splitPathParameters($field->getName());
return $this->resolveChildPath($transformer, $entity, $path, $field, $context);
}
/**
* @param ResourceTransformer $transformer
* @param array $parameters
* @param Context $context
* @param Field $field
* @param null $entity
* @return \mixed[]
* @throws VariableNotFoundInContext
*/
protected function parseParameters(ResourceTransformer $transformer, array $parameters, Context $context, Field $field = null, $entity = null)
{
$out = [];
foreach ($parameters as $v) {
if ($parameter = $this->getParameter($v)) {
$value = $this->parseParameter($transformer, $parameter, $context, $entity);
if ($value !== null) {
$out[] = $value;
} else {
if ($field) {
throw new VariableNotFoundInContext('Field ' . $field->getName() . ' requires a parameter $' . $parameter . ' to be set in the context, but no such parameter was defined.');
} else {
throw new VariableNotFoundInContext('A parameter $' . $parameter . ' is required to be set in the context, but no such parameter was defined.');
}
}
} else {
$out[] = $v;
}
}
return $out;
}
