<?php
namespace Livewire;
use ReflectionMethod;
use Illuminate\Routing\Route;
use Illuminate\Support\Reflector;
use Illuminate\Support\Collection;
use Illuminate\Contracts\Routing\UrlRoutable;
use Illuminate\Database\Eloquent\ModelNotFoundException;
/**
* This class mirrors the functionality of Laravel's Illuminate\Routing\ImplicitRouteBinding class.
*/
class ImplicitRouteBinding
{
protected $container;
public function __construct($container)
{
$this->container = $container;
}
public function resolveAllParameters(Route $route, Component $component)
{
$params = $this->resolveMountParameters($route, $component);
$props = $this->resolveComponentProps($route, $component);
return $params->merge($props)->all();
}
public function resolveMountParameters(Route $route, Component $component)
{
if (! method_exists($component, 'mount')) {
return new Collection();
}
// Cache the current route action (this callback actually), just to be safe.
$cache = $route->getAction('uses');
// We'll set the route action to be the "mount" method from the chosen
// Livewire component, to get the proper implicit bindings.
$route->uses(get_class($component).'@mount');
// This is normally handled in the "SubstituteBindings" middleware, but
// because that middleware has already ran, we need to run them again.
$this->container['router']->substituteImplicitBindings($route);
$parameters = $route->resolveMethodDependencies($route->parameters(), new ReflectionMethod($component, 'mount'));
// Restore the original route action.
$route->uses($cache);
return new Collection($parameters);
}
public function resolveComponentProps(Route $route, Component $component)
{
if (PHP_VERSION_ID < 70400) {
return;
}
return $this->getPublicPropertyTypes($component)
->intersectByKeys($route->parametersWithoutNulls())
->map(function ($className, $propName) use ($route) {
$resolved = $this->resolveParameter($route, $propName, $className);
// We'll also pass the resolved model back to the route
// so that it can be used for any depending bindings
$route->setParameter($propName, $resolved);
return $resolved;
});
}
public function getPublicPropertyTypes($component)
{
if (PHP_VERSION_ID < 70400) {
return new Collection();
}
return collect($component->getPublicPropertiesDefinedBySubClass())
->map(function ($value, $name) use ($component) {
return Reflector::getParameterClassName(new \ReflectionProperty($component, $name));
})
->filter();
}
protected function resolveParameter($route, $parameterName, $parameterClassName)
{
$parameterValue = $route->parameter($parameterName);
if ($parameterValue instanceof UrlRoutable) {
return $parameterValue;
}
$instance = $this->container->make($parameterClassName);
$parent = $route->parentOfParameter($parameterName);
if ($parent instanceof UrlRoutable && array_key_exists($parameterName, $route->bindingFields())) {
if (! $model = $parent->resolveChildRouteBinding(
$parameterName, $parameterValue, $route->bindingFieldFor($parameterName)
)) {
throw (new ModelNotFoundException())->setModel(get_class($instance), [$parameterValue]);
}
} elseif (! $model = $instance->resolveRouteBinding($parameterValue, $route->bindingFieldFor($parameterName))) {
throw (new ModelNotFoundException())->setModel(get_class($instance), [$parameterValue]);
}
return $model;
}
}