Change controller validate helper method to behave like Laravel (#1247)

src/Routing/ProvidesConvenienceMethods.php

@@ -7,7 +7,6 @@
 use Illuminate\Contracts\Bus\Dispatcher;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
-use Illuminate\Support\Str;
 use Illuminate\Validation\ValidationException;
 use Illuminate\Validation\Validator;
 
@@ -64,41 +63,27 @@ public function validate(Request $request, array $rules, array $messages = [], a
     {
         $validator = $this->getValidationFactory()->make($request->all(), $rules, $messages, $customAttributes);
 
-        if ($validator->fails()) {
-            $this->throwValidationException($request, $validator);
+        try {
+            $validated = $validator->validate();
+
+            if (method_exists($this, 'extractInputFromRules')) {
+                // Backwards compatability...
+                $validated = $this->extractInputFromRules($request, $rules);
+            }
+        } catch (ValidationException $exception) {
+            if (method_exists($this, 'throwValidationException')) {
+                // Backwards compatability...
+                $this->throwValidationException($request, $validator);
+            } else {
+                $exception->response = $this->buildFailedValidationResponse(
+                    $request, $this->formatValidationErrors($validator)
+                );
+
+                throw $exception;
+            }
         }
 
-        return $this->extractInputFromRules($request, $rules);
-    }
-
-    /**
-     * Get the request input based on the given validation rules.
-     *
-     * @param  \Illuminate\Http\Request  $request
-     * @param  array  $rules
-     * @return array
-     */
-    protected function extractInputFromRules(Request $request, array $rules)
-    {
-        return $request->only(collect($rules)->keys()->map(function ($rule) {
-            return Str::contains($rule, '.') ? explode('.', $rule)[0] : $rule;
-        })->unique()->toArray());
-    }
-
-    /**
-     * Throw the failed validation exception.
-     *
-     * @param  \Illuminate\Http\Request  $request
-     * @param  \Illuminate\Contracts\Validation\Validator  $validator
-     * @return void
-     *
-     * @throws \Illuminate\Validation\ValidationException
-     */
-    protected function throwValidationException(Request $request, $validator)
-    {
-        throw new ValidationException($validator, $this->buildFailedValidationResponse(
-            $request, $this->formatValidationErrors($validator)
-        ));
+        return $validated;
     }
 
     /**