Merge pull request #517 from jimmitjoo/main

Add "hasTag" method to check if the model has a certain tag

Author: AlexVanderbist

src/HasTags.php

@@ -300,4 +300,13 @@ protected function syncTagIds($ids, string | null $type = null, $detaching = tru
             $this->tags()->touchIfTouching();
         }
     }
+
+    public function hasTag($tag, string $type = null): bool
+    {
+        return $this->tags
+            ->when($type !== null, fn ($query) => $query->where('type', $type))
+            ->contains(function ($modelTag) use ($tag) {
+                return $modelTag->name === $tag || $modelTag->id === $tag;
+            });
+    }
 }

tests/HasTagsTest.php

@@ -362,3 +362,25 @@
     $tagsOfTypeA = $this->testModel->tagsWithType('typeA');
     expect($tagsOfTypeA->pluck('name')->toArray())->toEqual(['tagA1']);
 });
+
+it('can check if it has a tag', function () {
+    $tag = Tag::findOrCreate('test-tag');
+    $anotherTag = Tag::findOrCreate('another-tag');
+
+    $this->testModel->attachTag($tag);
+
+    expect($this->testModel->hasTag('test-tag'))->toBeTrue();
+    expect($this->testModel->hasTag($tag->id))->toBeTrue();
+    expect($this->testModel->hasTag('non-existing-tag'))->toBeFalse();
+    expect($this->testModel->hasTag($anotherTag->id))->toBeFalse();
+});
+
+it('can check if it has a tag with type', function () {
+    $tag = Tag::findOrCreate('test-tag', 'type1');
+    $sameNameDifferentType = Tag::findOrCreate('test-tag', 'type2');
+
+    $this->testModel->attachTag($tag);
+
+    expect($this->testModel->hasTag('test-tag', 'type1'))->toBeTrue();
+    expect($this->testModel->hasTag('test-tag', 'type2'))->toBeFalse();
+});