serkin / volan
PHP array schema validator
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Requires
- php: >=7.0|>=5.4
- monolog/monolog: *
Requires (Dev)
- friendsofphp/php-cs-fixer: *
- phpunit/phpunit: ~4.8|~5.7
This package is not auto-updated.
Last update: 2024-10-26 17:50:50 UTC
README
For everyone who uses MongoDB or other NoSQL solution and cares about what client sends to his/her database and looking for validation library written in PHP.
Volan
validates array against given shema and provides you with full information about invalid nodes. Can be used with logging so you can see the whole validation process.
Installation
via Composer:
composer require serkin/volan dev-master
Usage
All you have to do is to specify _type
field for each node. _type
is a reference to a validation class
include 'vendor/autoload.php'; $schema = [ 'root' => [ // Schema must begins with 'root' 'title' => [ '_type' => 'required_string' ], 'price' => [ '_type' => 'number' ], 'author' => [ '_type' => 'string' ], 'instock' => [ '_type' => 'required_boolean' ], 'info' => [ '_type' => 'array', 'isbn' => [ '_type' => 'string' ], 'pages' => [ '_type' => 'number' ] ], 'comments' => [ '_type' => 'nested_array', 'user_id' => [ '_type' => 'required_number' ], 'comment' => [ '_type' => 'required_string' ] ] ] ]; $book = [ 'title' => 'The Idiot', // Cannot be omitted 'instock' => true, // Cannot be omitted and has to be bool type 'info' => ['isbn' => '978-0451531520'], // 'price' can be omitted but if present has to be numeric type 'comments' => [ // Nested array check nested elements [ 'user_id' => 1, 'comment' => 'Good book', // 'extra_field' => 'bad field' // By default if key not present in schema validation stops and returns false ], [ 'user_id' => 2, 'comment' => 'I like it' ] ] ]; $validator = new \Volan\Volan($schema); $result = $validator->validate($book); // if $result->isValid() === false you can get full information about invalid node var_dump($result->getErrorInfo());
Predefined validators
Strings
string
: stringrequired_string
: string that has to be present
Arrays
array
: arrayrequired_array
: array that has to be presentnested_array
: array with nested arraysrequired_nested_array
: array with nested arrays has to be present
Bool
boolean
: booleanrequired_boolean
: boolean that has to be present
Numbers
number
: int or floatrequired_number
: int or float that has to be present
Custom validators
If you need extra validators you can create them extending \Volan\Validator\AbstractValidator
class
- Create folder
src/Volan/Validator
in your library - Add your custom validator
src/Volan/Validator/mongoid_validator.php
. Example formongoid
validator:
namespace Volan\Validator; class MongoidValidator extends AbstractValidator { public function isValid($nodeData) { return ($nodeData instanceof \MongoId); } }
- Add autoload to composer.json
"autoload": { "psr-4": { "Volan\\Validator\\": "src/Volan/Validator/" } }
Usage with other libraries
If you want to use other validation libraries with Volan
it is easy. Let's take a look how it works with Respect validation engine
namespace Volan\Validator; use Respect\Validation\Validator as v; class IntBetween10And20Validator extends AbstractValidator { public function isValid($nodeData) { return v::int()->between(10, 20)->validate($nodeData); } }
Tips
Allow extra keys in data
If you want allow extra keys in array you can define it in constructor
$validator = new \Volan\Volan($schema, $strictMode = false);
Allow required
fields be omitted
In mongoDB when you update just several fields in collection you cannot pass validation cause required fields may be missing. You can tell validator consider all required validation as optional.
$validator = new \Volan\Volan($schema); $validator->setRequiredMode(false); $result = $validator->validate($book);
Logging
If you want see validation process set logger
$validator = new \Volan\Volan($schema); $result = $validator->validate($book); $result->getLog();
PSR compatible class names
You can use PSR compatible names for validation classes.
Previous example with mongoid
validation class can be rewritten like:
namespace Volan\Validator; class MongoidValidator extends AbstractValidator { public function isValid($nodeData) { return ($nodeData instanceof \MongoId); } }
Here we changed mongoid_validator
to MongoidValidator
.
Example with int_between_10_and_20_validator
be rewritten to IntBetween10And20Validator
Relational structure
Let's imagine we have field in our book data
... 'categories' => [new \MongoId('111111111111111111111111'),new \MongoId('111111111111111111111112')] ...
and we want ensure that all elements not only instances of MongoId
but actually present in our database.
It is easy. Our validator will be look like:
namespace Volan\Validator;
class ArrayOfMongoids extends AbstractValidator { public function isValid($nodeData) { foreach($nodeData as $id) { if($id !instanceof \MongoId) || !$this->presentInCategoryCollection($id)) return false; } } return true; } public function presentInCategoryCollection($id) { // Getting connection and so on $collection = $db->selectCollection('categories'); return (bool)$collection->findOne(['_id' => $id]); } }
now in schema we add
... 'categories' => ['_type' => 'array_of_mongoids'] ...
Dependencies
- PHP: >= 5.4
Contribution
Please see CONTRIBUTING for details.
Licence
The MIT License (MIT). Please see License File for more information.
Tests
phpunit
Or with Docker
docker run --rm -v "$PWD":/var/src/ serkin/php7 vendor/bin/phpunit --debug
Code style
docker run --rm -v "$PWD":/var/src/ serkin/php7 vendor/bin/php-cs-fixer fix src