<?php
/*
* This file is part of the JsonSchema package.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace JsonSchema\Constraints;
use JsonSchema\Entity\JsonPointer;
/**
* The CollectionConstraint Constraints, validates an array against a given schema
*
* @author Robert Schönthal <seroscho@googlemail.com>
* @author Bruno Prieto Reis <bruno.p.reis@gmail.com>
*/
class CollectionConstraint extends Constraint
{
/**
* {@inheritdoc}
*/
public function check(&$value, $schema = null, JsonPointer $path = null, $i = null)
{
// Verify minItems
if (isset($schema->minItems) && count($value) < $schema->minItems) {
$this->addError($path, 'There must be a minimum of ' . $schema->minItems . ' items in the array', 'minItems', array('minItems' => $schema->minItems));
}
// Verify maxItems
if (isset($schema->maxItems) && count($value) > $schema->maxItems) {
$this->addError($path, 'There must be a maximum of ' . $schema->maxItems . ' items in the array', 'maxItems', array('maxItems' => $schema->maxItems));
}
// Verify uniqueItems
if (isset($schema->uniqueItems) && $schema->uniqueItems) {
$unique = $value;
if (is_array($value) && count($value)) {
$unique = array_map(function ($e) {
return var_export($e, true);
}, $value);
}
if (count(array_unique($unique)) != count($value)) {
$this->addError($path, 'There are no duplicates allowed in the array', 'uniqueItems');
}
}
// Verify items
if (isset($schema->items)) {
$this->validateItems($value, $schema, $path, $i);
}
}
/**
* Validates the items
*
* @param array $value
* @param \stdClass $schema
* @param JsonPointer|null $path
* @param string $i
*/
protected function validateItems(&$value, $schema = null, JsonPointer $path = null, $i = null)
{
if (is_object($schema->items)) {
// just one type definition for the whole array
foreach ($value as $k => &$v) {
$initErrors = $this->getErrors();
// First check if its defined in "items"
$this->checkUndefined($v, $schema->items, $path, $k);
// Recheck with "additionalItems" if the first test fails
if (count($initErrors) < count($this->getErrors()) && (isset($schema->additionalItems) && $schema->additionalItems !== false)) {
$secondErrors = $this->getErrors();
$this->checkUndefined($v, $schema->additionalItems, $path, $k);
}
// Reset errors if needed
if (isset($secondErrors) && count($secondErrors) < count($this->getErrors())) {
$this->errors = $secondErrors;
} elseif (isset($secondErrors) && count($secondErrors) === count($this->getErrors())) {
$this->errors = $initErrors;
}
}
unset($v); /* remove dangling reference to prevent any future bugs
* caused by accidentally using $v elsewhere */
} else {
// Defined item type definitions
foreach ($value as $k => &$v) {
if (array_key_exists($k, $schema->items)) {
$this->checkUndefined($v, $schema->items[$k], $path, $k);
} else {
// Additional items
if (property_exists($schema, 'additionalItems')) {
if ($schema->additionalItems !== false) {
$this->checkUndefined($v, $schema->additionalItems, $path, $k);
} else {
$this->addError(
$path, 'The item ' . $i . '[' . $k . '] is not defined and the definition does not allow additional items', 'additionalItems', array('additionalItems' => $schema->additionalItems));
}
} else {
// Should be valid against an empty schema
$this->checkUndefined($v, new \stdClass(), $path, $k);
}
}
}
unset($v); /* remove dangling reference to prevent any future bugs
* caused by accidentally using $v elsewhere */
// Treat when we have more schema definitions than values, not for empty arrays
if (count($value) > 0) {
for ($k = count($value); $k < count($schema->items); $k++) {
$undefinedInstance = $this->factory->createInstanceFor('undefined');
$this->checkUndefined($undefinedInstance, $schema->items[$k], $path, $k);
}
}
}
}
}