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<?php
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namespace Illuminate\Routing;
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use Closure;
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use Illuminate\Database\Eloquent\ModelNotFoundException;
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use Illuminate\Support\Str;
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class RouteBinding
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{
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/**
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* Create a Route model binding for a given callback.
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*
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* @param \Illuminate\Container\Container $container
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* @param \Closure|string $binder
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* @return \Closure
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*/
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public static function forCallback($container, $binder)
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{
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if (is_string($binder)) {
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return static::createClassBinding($container, $binder);
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}
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return $binder;
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}
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/**
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* Create a class based binding using the IoC container.
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*
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* @param \Illuminate\Container\Container $container
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* @param string $binding
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* @return \Closure
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*/
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protected static function createClassBinding($container, $binding)
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{
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return function ($value, $route) use ($container, $binding) {
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// If the binding has an @ sign, we will assume it's being used to delimit
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// the class name from the bind method name. This allows for bindings
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// to run multiple bind methods in a single class for convenience.
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[$class, $method] = Str::parseCallback($binding, 'bind');
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$callable = [$container->make($class), $method];
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return $callable($value, $route);
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};
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}
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/**
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* Create a Route model binding for a model.
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*
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* @param \Illuminate\Container\Container $container
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* @param string $class
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* @param \Closure|null $callback
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* @return \Closure
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*
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* @throws \Illuminate\Database\Eloquent\ModelNotFoundException<\Illuminate\Database\Eloquent\Model>
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*/
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public static function forModel($container, $class, $callback = null)
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{
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return function ($value) use ($container, $class, $callback) {
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if (is_null($value)) {
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return;
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}
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// For model binders, we will attempt to retrieve the models using the first
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// method on the model instance. If we cannot retrieve the models we'll
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// throw a not found exception otherwise we will return the instance.
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$instance = $container->make($class);
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if ($model = $instance->resolveRouteBinding($value)) {
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return $model;
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}
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// If a callback was supplied to the method we will call that to determine
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// what we should do when the model is not found. This just gives these
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// developer a little greater flexibility to decide what will happen.
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if ($callback instanceof Closure) {
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return $callback($value);
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}
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throw (new ModelNotFoundException)->setModel($class);
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};
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}
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}
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