Merge pull request #34 from OFFLINE-GmbH/master

Added ValueNotFound object

Author: nahid

src/JsonQueriable.php

@@ -5,6 +5,7 @@
 use Nahid\JsonQ\Exceptions\ConditionNotAllowedException;
 use Nahid\JsonQ\Exceptions\FileNotFoundException;
 use Nahid\JsonQ\Exceptions\InvalidJsonException;
+use Nahid\JsonQ\Results\ValueNotFound;
 use Nahid\JsonQ\Condition;
 
 trait JsonQueriable
@@ -339,13 +340,13 @@ protected function getFromNested($map, $node)
             }
 
             if ($terminate) {
-                return false;
+                return new ValueNotFound();
             }
 
             return $map;
         }
 
-        return false;
+        return new ValueNotFound();
     }
 
     /**
@@ -383,7 +384,7 @@ protected function processConditions()
                     }
 
                     $value = $this->getFromNested($val, $rule['key']);
-                    $return = $value === null || $value !== '' ? call_user_func_array($function, [$value, $rule['value']]) : false;
+                    $return = $value instanceof ValueNotFound ? false :  call_user_func_array($function, [$value, $rule['value']]);
                     $tmp &= $return;
                 }
                 $res |= $tmp;

src/Results/ValueNotFound.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace Nahid\JsonQ\Results;
+
+/**
+ * This class represents a query result where a given
+ * value was queried but did not exist.
+ */
+class ValueNotFound {}

tests/JsonQueriableTest.php

@@ -5,6 +5,7 @@
 use Nahid\JsonQ\Jsonq;
 use Nahid\JsonQ\Exceptions\FileNotFoundException;
 use Nahid\JsonQ\Exceptions\InvalidJsonException;
+use Nahid\JsonQ\Results\ValueNotFound;
 
 class JsonQueriableTest extends AbstractTestCase
 {
@@ -62,6 +63,18 @@ class JsonQueriableTest extends AbstractTestCase
             ]
         ]
     ];
+
+    protected static $testDataNesting = [
+        'level1' => [
+            'level2' => [
+                'level3-1' => 'data31',
+                'level3-2' => 32,
+                'level3-3' => false,
+                'level3-4' => null,
+                'level3-5' => '',
+            ]
+        ]
+    ];
 
     protected function createFile()
     {
@@ -193,6 +206,39 @@ public function testGetDataFromFile($file, $result)
         }
     }
 
+    /**
+     * @param mixed $path
+     * @param mixed $expected
+     *
+     * @dataProvider getFromNestedProvider
+     */
+    public function testGetFromNested($path, $expected)
+    {
+        $method = $this->makeCallable($this->jsonq, 'getFromNested');
+        
+        $input = [self::$testDataNesting, $path];
+
+        $result = $method->invokeArgs($this->jsonq, $input);
+
+        if ($result instanceof ValueNotFound) {
+            $result = ValueNotFound::class;
+        }
+
+        $this->assertEquals($expected, $result);
+    }
+    
+    public function getFromNestedProvider()
+    {
+        return [
+            ['level1.level2.level3-1', 'data31'], 
+            ['level1.level2.level3-2', 32], 
+            ['level1.level2.level3-3', false], 
+            ['level1.level2.level3-4', null], 
+            ['level1.level2.level3-5', ''], 
+            ['level1.level2.not-existing', ValueNotFound::class], 
+        ];
+    }    
+
     public function getDataFromFileProvider()
     {
         return [