mvieira / collection-json
PHP implementation of the Collection+JSON Media Type
Requires
- php: >=7.0
- psr/link: ^1.0
Requires (Dev)
- leanphp/phpspec-code-coverage: ^3.1
- phpspec/phpspec: ^3.0
- satooshi/php-coveralls: ^1.0
- squizlabs/php_codesniffer: ^3.0
- symfony/validator: ^3.3
Suggests
- symfony/validator: Adds DataSet validation support
This package is auto-updated.
Last update: 2024-12-05 19:06:42 UTC
README
PHP implementation of the Collection+JSON Media Type
Specification:
Installation
CollectionJson requires php >= 7.0
Install CollectionJson with Composer
{ "require": { "mvieira/collection-json": "dev-master" } }
or
$ composer require mvieira/collection-json
Contributing
Please see CONTRIBUTING for details.
License
The MIT License (MIT). Please see License File for more information.
Documentation
Creating a collection
$collection = (new Collection()) ->withItem((new Item('https://example.co/item/1')) ->withDataSet([ new Data('data 1'), new Data('data 2', 'value 2') ]) ->withLink( new Link('https://example.co/item/1', Relation::ITEM) ) ); print json_encode($collection);
{ "collection": { "version": "1.0", "items": [ { "data": [ { "name": "data 1", "value": null }, { "name": "data 2", "value": "value 2" } ], "href": "http:\/\/example.com\/item\/1", "links": [ { "href": "https:\/\/example.co\/item\/1", "rel": "item", "render": "link" } ] } ] } }
Creating an entity
All entities Collection
, Data
, Error
, Item
, Link
, Query
, Template
can be created by using the static method fromArray
...
$data = Data::fromArray([ 'name' => 'email', 'value' => 'hello@example.co' ]);
...or by using the accessors (Note that entities are immutable)
$data = (new Data('email')) ->withValue('hello@example.co');
...or via the constructor
$data = new Data('email', 'hello@example.co');
Printing the data
Note: Apart from the data's value property, which allows having a NULL value (see. specification), All NULL
properties and empty arrays will be excluded from the JSON and Array representation.
Printing a JSON representation
All entities implement the JsonSerializable interface,
you can therefore call at any time the method json_encode()
.
print json_encode($collection);
{ "collection": { "version": "1.0", "items": [ ... ], "links": [ ... ] } }
Printing an Array representation
All entities implement a custom interface named ArrayConvertible
, so you can call at any time the method toArray()
.
This method will be called recursively on all nested entities.
print_r($collection->toArray());
Array ( [collection] => Array ( [version] => 1.0 [items] => Array ... [links] => Array ... ) )
Wrapping
The CollectionJson\Entity\Collection
entity will be wrapped...
echo json_encode($collection);
{ "collection": { "version": "1.0" } }
...however others entities will not be wrapped when they are converted in a JSON or an Array.
$template = new Template(); echo json_encode($template);
{ "data": [ ... ] }
But you can wrap the json or the array representation by calling the method wrap()
$template->wrap(); echo json_encode($template);
{ "template": { "data": [ ... ] } }
Examples
Examples are available in the directory ./examples/
, you can execute them on the command line by running:
$ make examples
Or separately
$ php ./examples/client-collection.php
Working with data and links
In order to work with CollectionJson Arrays Data, Links, the API provides 2 interfaces that implement a similar logic.
- The interface
DataAware
implemented byItem
,Query
andTemplate
entities, provides the methodswithData
,withoutData
,withDataSet
,getDataSet
,getFirstData
andgetLastData
- The interface
LinkAware
implemented byCollection
andItem
entities, provides the methodswithLink
,withoutLink
,withLinkSet
,getLinks
,getFirstLink
andgetLastLink
They allows you to add the corresponding entities to objects that implement them.
// this... $item = (new Item('https://example.co/item/1')) ->withData([ 'name' => 'email', 'value' => 'email value' ]); // ...is similar to $data = Data::fromArray([ 'name' => 'email', 'value' => 'email value' ]); $item = (new Item('https://example.co/item/1')) ->withData($data); // and that... $item = (new Item('https://example.co/item/1')) ->withDataSet([ new Data('email', 'hello@example.co'), new Data('tel', '0000000000') ]); // ...is similar to $data1 = Data::fromArray([ 'name' => 'email', 'value' => 'hello@example.co' ]); $data2 = Data::fromArray([ 'name' => 'tel', 'value' => '0000000000' ]); $item = (new Item('https://example.co/item/1')) ->withDataSet([ $data1, $data2 ]);
Validation
It is now possible to validate the data entering your API by using the Symfony validator.
use CollectionJson\Validator\Dataset as DatasetValidator; use Symfony\Component\Validator\Constraints; $constraints = [ 'id' => [ new Constraints\NotBlank(), ], 'url' => [ new Constraints\NotBlank(), new Constraints\Url(), ], 'email' => [ new Constraints\NotBlank(), new Constraints\Email(), ], ]; $template = (new Template()) ->withData(new Data('id', '123')) ->withData(new Data('url', 'http://example.co')) ->withData(new Data('email', 'test@example.co')); $errors = (new DatasetValidator()) ->validate($template->getDataSet(), $constraints);
It will return the list of errors.