/**
* @param FREST\Resource $resource
* @return array
* @throws FREST\Exception
*/
private function generateUpdateSpecs($resource)
{
$updateSpecs = array();
$updateSettings = $resource->getUpdateSettings();
/** @var Setting\Update $updateSetting */
foreach ($updateSettings as $updateSetting) {
$alias = $updateSetting->getAlias();
if (isset($this->parameters[$alias])) {
$value = $this->parameters[$alias];
$field = $resource->getFieldForAlias($alias);
$fieldSetting = $resource->getFieldSettingForAlias($alias);
$variableType = $fieldSetting->getVariableType();
// Type checking
$castedValue = Type\Variable::castValue($value, $variableType);
if (!isset($castedValue)) {
$typeString = Type\Variable::getString($variableType);
throw new FREST\Exception(FREST\Exception::InvalidType, "Expecting '{$alias}' to be of type '{$typeString}' but received '{$value}'");
}
// Condition Func
$conditionFunction = $updateSetting->getConditionFunction();
if (isset($conditionFunction)) {
if (!method_exists($resource, $conditionFunction)) {
throw new FREST\Exception(FREST\Exception::ConditionFunctionMissing, "Function name: '{$conditionFunction}', resource: '{$resource->getName()}'");
}
$isValueValid = $resource->{$conditionFunction}($castedValue);
if (!$isValueValid) {
throw new FREST\Exception(FREST\Exception::InvalidFieldValue, "Field: '{$alias}'");
}
}
// Filter Func
$filterFunction = $updateSetting->getFilterFunction();
if (isset($filterFunction)) {
if (!method_exists($resource, $filterFunction)) {
throw new FREST\Exception(FREST\Exception::FilterFunctionMissing, "Function name: '{$filterFunction}', resource: '{$resource->getName()}'");
}
$castedValue = $resource->{$filterFunction}($castedValue);
}
$updateSpec = new Spec\Update($alias, $field, $castedValue, $variableType);
$updateSpecs[$alias] = $updateSpec;
}
}
return $updateSpecs;
}
