README

The RoadyRoutingUtilities library provides the classes responsible for handling routing for the Roady php framework.

Though it is designed for use with the Roady php framework, this library can be used on it's own.

Installation

composer require darling/roady-routing-utilities

Classes

Darling\RoadyRoutingUtilities\classes\requests\Request

A Request represents a request to a server.

A Request has a Name, and a Url.

A Request's Name will either be based on the value of the request query parameter that is assigned to the Request's Url, the value of $_POST['request'], or the value of $_GET['request'].

If the Url is not assigned a query parameter named request, and nither $_POST['request'] or $_GET['request'] is set, then the Request's Name will be homepage.

Note: The Url's request query parameter will always be preferred if it is set, then $_POST['request'], then $_GET['request'].

Examples:

To define a Request that represents the current request to a server instantiate a new Request without any arguments:

$currentRequest = new \Darling\RoadyRoutingUtilities\classes\requests\Request();

To define a Request that represents a specific request to a server an opitional url string such as http://example.com:8080?query#fragment may be passed to the new Request's __construct method.

For example:

$specificRequest = new \Darling\RoadyRoutingUtilities\classes\requests\Request(
    'http://www.example.com:8080/path?query#fragment'
);

Darling\RoadyRoutingUtilities\classes\responses\Response

A Response represents the relationship between a Request and collection of Routes that should be served in response to that Request.

Examples:

To define a Response for a specific Request to a server:

$specificRequest = new \Darling\RoadyRoutingUtilities\classes\requests\Request(
    'http://www.example.com:8080/path?query#fragment'
);

$routeCollection = new \Darling\RoadyRoutes\classes\collections\RouteCollection(
    new \Darling\RoadyRoutes\classes\routes\Route(
        moduleName: new \Darling\PHPTextTypes\classes\strings\Name(
            new \Darling\PHPTextTypes\classes\strings\Text('hello-world'),
        ),
        // Names of the Requests this Route should be served in response to.
        nameCollection: new \Darling\PHPTextTypes\classes\collections\NameCollection(
            new \Darling\PHPTextTypes\classes\strings\Name(
                new \Darling\PHPTextTypes\classes\strings\Text('homepage'),
            ),
        ),
        // Named positions where this Routes output should be rendered by Roady's UI.
        namedPositionCollection: new \Darling\RoadyRoutes\classes\collections\NamedPositionCollection(
            new \Darling\RoadyRoutes\classes\identifiers\NamedPosition(
                new \Darling\RoadyRoutes\classes\identifiers\PositionName(
                    new \Darling\PHPTextTypes\classes\strings\Name(
                        new \Darling\PHPTextTypes\classes\strings\Text('TargetPositionName'),
                    )
                ),
                new \Darling\RoadyRoutes\classes\settings\Position(0),
            ),
        ),
        // RelativePath to this Routes output file.
        relativePath: new \Darling\RoadyRoutes\classes\paths\RelativePath(
            new \Darling\PHPTextTypes\classes\collections\SafeTextCollection(
                new SafeText(new \Darling\PHPTextTypes\classes\strings\Text('output')),
                new SafeText(new \Darling\PHPTextTypes\classes\strings\Text('homepage.html')),
            )
        ),
    ),
);

$response = new Darling\RoadyRoutingUtilities\classes\responses\Response(
    $specificRequest, $routeCollection
);

Darling\RoadyRoutingUtilities\classes\routers\Router

A Router can accept a Request and return an appropriate Response for that Request.

Examples:

$specificRequest = new \Darling\RoadyRoutingUtilities\classes\requests\Request(
    'http://www.example.com:8080/path?query#fragment'
);

$router = new \Darling\RoadyRoutingUtilities\classes\routers\Router(
    new \Darling\RoadyModuleUtilities\classes\directory\listings\ListingOfDirectoryOfRoadyModules(
        new \Darling\RoadyModuleUtilities\classes\paths\PathToDirectoryOfRoadyModules(
            new \Darling\PHPFileSystemPaths\classes\paths\PathToExistingDirectory(
                new \Darling\PHPTextTypes\classes\collections\SafeTextCollection(
                    new \Darling\PHPTextTypes\classes\strings\SafeText(
                        new \Darling\PHPTextTypes\classes\strings\Text('path'),
                    ),
                    new \Darling\PHPTextTypes\classes\strings\SafeText(
                        new \Darling\PHPTextTypes\classes\strings\Text('to'),
                    ),
                    new \Darling\PHPTextTypes\classes\strings\SafeText(
                        new \Darling\PHPTextTypes\classes\strings\Text('directory'),
                    ),
                    new \Darling\PHPTextTypes\classes\strings\SafeText(
                        new \Darling\PHPTextTypes\classes\strings\Text('of'),
                    ),
                    new \Darling\PHPTextTypes\classes\strings\SafeText(
                        new \Darling\PHPTextTypes\classes\strings\Text('roady'),
                    ),
                    new \Darling\PHPTextTypes\classes\strings\SafeText(
                        new \Darling\PHPTextTypes\classes\strings\Text('modules'),
                    ),
                )
            ),
        ),
    ),
    new \Darling\RoadyModuleUtilities\classes\determinators\ModuleCSSRouteDeterminator(),
    new \Darling\RoadyModuleUtilities\classes\determinators\ModuleJSRouteDeterminator(),
    new \Darling\RoadyModuleUtilities\classes\determinators\ModuleOutputRouteDeterminator(),
    new \Darling\RoadyModuleUtilities\classes\determinators\RoadyModuleFileSystemPathDeterminator(),
    new \Darling\RoadyModuleUtilities\classes\configuration\ModuleRoutesJsonConfigurationReader(),
);

$response = $router->handleRequest($specificRequest);

As a final example, the following is a snippet from Roady's index.php demonstrating how a Request, Response, and Router are used in practice:

$currentRequest = new Request();
$roadyModuleFileSystemPathDeterminator =
    new RoadyModuleFileSystemPathDeterminator();

$router = new Router(
    new ListingOfDirectoryOfRoadyModules(
        RoadyAPI::pathToDirectoryOfRoadyModules()
    ),
    new ModuleCSSRouteDeterminator(),
    new ModuleJSRouteDeterminator(),
    new ModuleOutputRouteDeterminator(),
    $roadyModuleFileSystemPathDeterminator,
    new ModuleRoutesJsonConfigurationReader(),
);

$response = $router->handleRequest($currentRequest);

$roadyUI = new RoadyUI(
    RoadyAPI::pathToDirectoryOfRoadyModules(),
    new RouteCollectionSorter(),
    $roadyModuleFileSystemPathDeterminator,
);

echo $roadyUI->render($response);