/**
* Given a type and any value, return a runtime value coerced to match the type.
*/
private static function coerceValue(Type $type, $value)
{
if ($type instanceof NonNull) {
// Note: we're not checking that the result of coerceValue is non-null.
// We only call this function after calling isValidValue.
return self::coerceValue($type->getWrappedType(), $value);
}
if (null === $value) {
return null;
}
if ($type instanceof ListOfType) {
$itemType = $type->getWrappedType();
// TODO: support iterable input
if (is_array($value)) {
return array_map(function ($item) use($itemType) {
return Values::coerceValue($itemType, $item);
}, $value);
} else {
return [self::coerceValue($itemType, $value)];
}
}
if ($type instanceof InputObjectType) {
$fields = $type->getFields();
$obj = [];
foreach ($fields as $fieldName => $field) {
$fieldValue = self::coerceValue($field->getType(), isset($value[$fieldName]) ? $value[$fieldName] : null);
if (null === $fieldValue) {
$fieldValue = $field->defaultValue;
}
if (null !== $fieldValue) {
$obj[$fieldName] = $fieldValue;
}
}
return $obj;
}
Utils::invariant($type instanceof ScalarType || $type instanceof EnumType, 'Must be input type');
return $type->parseValue($value);
}
/**
* Given a type and any value, return a runtime value coerced to match the type.
*/
private static function coerceValue(Type $type, $value)
{
$undefined = Utils::undefined();
if ($value === $undefined) {
return $undefined;
}
if ($type instanceof NonNull) {
if ($value === null) {
// Intentionally return no value.
return $undefined;
}
return self::coerceValue($type->getWrappedType(), $value);
}
if (null === $value) {
return null;
}
if ($type instanceof ListOfType) {
$itemType = $type->getWrappedType();
if (is_array($value) || $value instanceof \Traversable) {
$coercedValues = [];
foreach ($value as $item) {
$itemValue = self::coerceValue($itemType, $item);
if ($undefined === $itemValue) {
// Intentionally return no value.
return $undefined;
}
$coercedValues[] = $itemValue;
}
return $coercedValues;
} else {
$coercedValue = self::coerceValue($itemType, $value);
if ($coercedValue === $undefined) {
// Intentionally return no value.
return $undefined;
}
return [$coercedValue];
}
}
if ($type instanceof InputObjectType) {
$coercedObj = [];
$fields = $type->getFields();
foreach ($fields as $fieldName => $field) {
if (!array_key_exists($fieldName, $value)) {
if ($field->defaultValueExists()) {
$coercedObj[$fieldName] = $field->defaultValue;
} else {
if ($field->getType() instanceof NonNull) {
// Intentionally return no value.
return $undefined;
}
}
continue;
}
$fieldValue = self::coerceValue($field->getType(), $value[$fieldName]);
if ($fieldValue === $undefined) {
// Intentionally return no value.
return $undefined;
}
$coercedObj[$fieldName] = $fieldValue;
}
return $coercedObj;
}
if ($type instanceof LeafType) {
$parsed = $type->parseValue($value);
if (null === $parsed) {
// null or invalid values represent a failure to parse correctly,
// in which case no value is returned.
return $undefined;
}
return $parsed;
}
throw new InvariantViolation('Must be input type');
}
/**
* Check if value is valid using GraphQL Type
*
* @param array $value
* @param Type $type
*
* @return boolean
*/
private function isValidValue($value, Type $type)
{
if ($type instanceof NonNull) {
if (null === $value) {
return false;
}
return $this->isValidValue($value, $type->getWrappedType());
}
if ($value === null) {
return true;
}
if ($type instanceof ListOfType) {
$itemType = $type->getWrappedType();
if (is_array($value)) {
foreach ($value as $item) {
if (!$this->isValidValue($item, $itemType)) {
return false;
}
}
return true;
} else {
return $this->isValidValue($value, $itemType);
}
}
if ($type instanceof InputObjectType) {
if (!is_array($value)) {
return false;
}
$fields = $type->getFields();
$fieldMap = [];
foreach ($fields as $fieldName => $field) {
if (!$this->isValidValue(isset($value[$fieldName]) ? $value[$fieldName] : null, $field->getType())) {
return false;
}
$fieldMap[$field->name] = $field;
}
$diff = array_diff_key($value, $fieldMap);
if (!empty($diff)) {
return false;
}
return true;
}
Utils::invariant($type instanceof ScalarType || $type instanceof EnumType, 'Must be input type');
return null !== $type->parseValue($value);
}
/**
* Given a type and any value, return a runtime value coerced to match the type.
*/
private static function coerceValue(Type $type, $value)
{
if ($type instanceof NonNull) {
// Note: we're not checking that the result of coerceValue is non-null.
// We only call this function after calling isValidPHPValue.
return self::coerceValue($type->getWrappedType(), $value);
}
if (null === $value) {
return null;
}
if ($type instanceof ListOfType) {
$itemType = $type->getWrappedType();
if (is_array($value) || $value instanceof \Traversable) {
return Utils::map($value, function ($item) use($itemType) {
return Values::coerceValue($itemType, $item);
});
} else {
return [self::coerceValue($itemType, $value)];
}
}
if ($type instanceof InputObjectType) {
$fields = $type->getFields();
$obj = [];
foreach ($fields as $fieldName => $field) {
$fieldValue = self::coerceValue($field->getType(), isset($value[$fieldName]) ? $value[$fieldName] : null);
if (null === $fieldValue) {
$fieldValue = $field->defaultValue;
}
if (null !== $fieldValue) {
$obj[$fieldName] = $fieldValue;
}
}
return $obj;
}
if ($type instanceof LeafType) {
return $type->parseValue($value);
}
throw new InvariantViolation('Must be input type');
}