Merge pull request #201 from jr3cermak/master

A little bugfix.

api.php

@@ -2429,7 +2429,10 @@ class PHP_CRUD_API {
 						echo '"required":true,';
 						echo '"schema":{';
 						echo '"type": "object",';
-						echo '"required":'.json_encode(array_keys(array_filter($action['fields'],function($f){ return $f->required; }))).',';
+                                                $required_fields = array_keys(array_filter($action['fields'],function($f){ return $f->required; }));
+                                                if (count($required_fields) > 0) {
+                                                        echo '"required":'.json_encode($required_fields).',';
+                                                }
 						echo '"properties": {';
 						foreach (array_keys($action['fields']) as $k=>$field) {
 							if ($k>0) echo ',';
@@ -2497,7 +2500,10 @@ class PHP_CRUD_API {
 						echo '"required":true,';
 						echo '"schema":{';
 						echo '"type": "object",';
-						echo '"required":'.json_encode(array_keys(array_filter($action['fields'],function($f){ return $f->required; }))).',';
+                                                $required_fields = array_keys(array_filter($action['fields'],function($f){ return $f->required; }));
+                                                if (count($required_fields) > 0) {
+                                                        echo '"required":'.json_encode($required_fields).',';
+                                                }
 						echo '"properties": {';
 						foreach (array_keys($action['fields']) as $k=>$field) {
 							if ($k>0) echo ',';

tests/tests.php

@@ -450,7 +450,7 @@ class PHP_CRUD_API_Test extends PHPUnit_Framework_TestCase
 	{
 		$test = new API($this);
 		$test->options('/posts/2');
-		$test->expect('["Access-Control-Allow-Headers: Content-Type, X-XSRF-Token","Access-Control-Allow-Methods: OPTIONS, GET, PUT, POST, DELETE, PATCH","Access-Control-Allow-Credentials: true","Access-Control-Max-Age: 1728000"]',false);
+		$test->expect('["Access-Control-Allow-Headers: Content-Type, X-XSRF-TOKEN","Access-Control-Allow-Methods: OPTIONS, GET, PUT, POST, DELETE, PATCH","Access-Control-Allow-Credentials: true","Access-Control-Max-Age: 1728000"]',false);
 	}
 
 	public function testHidingPasswordColumn()