Add NotEmptyFilter

docs/reference/filter_field_definition.rst

@@ -192,6 +192,8 @@ Empty
         }
     }
 
+This filter has an additional option ``inverse`` in order to be used as a ``NotEmptyFilter``.
+
 Advanced usage
 --------------
 

src/Filter/EmptyFilter.php

@@ -31,19 +31,18 @@ public function filter(ProxyQueryInterface $queryBuilder, $alias, $field, $value
             return;
         }
 
-        if (BooleanType::TYPE_YES === (int) $value['value']) {
+        $isYes = BooleanType::TYPE_YES === (int) $value['value'];
+        $isNo = BooleanType::TYPE_NO === (int) $value['value'];
+
+        if (!$this->getOption('inverse') && $isYes || $this->getOption('inverse') && $isNo) {
             $this->applyWhere(
                 $queryBuilder,
-                $queryBuilder
-                ->expr()
-                ->isNull(sprintf('%s.%s', $alias, $field))
+                $queryBuilder->expr()->isNull(sprintf('%s.%s', $alias, $field))
             );
-        } elseif (BooleanType::TYPE_NO === (int) $value['value']) {
+        } elseif (!$this->getOption('inverse') && $isNo || $this->getOption('inverse') && $isYes) {
             $this->applyWhere(
                 $queryBuilder,
-                $queryBuilder
-                ->expr()
-                ->isNotNull(sprintf('%s.%s', $alias, $field))
+                $queryBuilder->expr()->isNotNull(sprintf('%s.%s', $alias, $field))
             );
         }
     }
@@ -54,6 +53,7 @@ public function getDefaultOptions()
             'field_type' => BooleanType::class,
             'operator_type' => HiddenType::class,
             'operator_options' => [],
+            'inverse' => false,
         ];
     }
 

tests/Filter/EmptyFilterTest.php

@@ -38,11 +38,12 @@ public function testEmpty(): void
     /**
      * @dataProvider valueDataProvider
      */
-    public function testValue(int $value, string $expectedQuery): void
+    public function testValue(bool $inverse, int $value, string $expectedQuery): void
     {
         $filter = new EmptyFilter();
         $filter->initialize('field_name', [
             'field_options' => ['class' => 'FooBar'],
+            'inverse' => $inverse,
         ]);
 
         $builder = new ProxyQuery(new QueryBuilder());
@@ -68,8 +69,10 @@ public function testRenderSettings(): void
     public function valueDataProvider(): array
     {
         return [
-            [BooleanType::TYPE_YES, 'alias.field IS NULL'],
-            [BooleanType::TYPE_NO, 'alias.field IS NOT NULL'],
+            [false, BooleanType::TYPE_YES, 'alias.field IS NULL'],
+            [false, BooleanType::TYPE_NO, 'alias.field IS NOT NULL'],
+            [true, BooleanType::TYPE_YES, 'alias.field IS NOT NULL'],
+            [true, BooleanType::TYPE_NO, 'alias.field IS NULL'],
         ];
     }
 }