Support delete one document

Author: GromNaN

src/Query/Builder.php

@@ -703,7 +703,14 @@ public function delete($id = null)
         $wheres = $this->compileWheres();
         $options = $this->inheritConnectionOptions();
 
-        $result = $this->collection->deleteMany($wheres, $options);
+        if ($this->limit) {
+            if ($this->limit !== 1) {
+                throw new \InvalidArgumentException('Cannot delete more than 1 document when using limit');
+            }
+            $result = $this->collection->deleteOne($wheres, $options);
+        } else {
+            $result = $this->collection->deleteMany($wheres, $options);
+        }
 
         if (1 == (int) $result->isAcknowledged()) {
             return $result->getDeletedCount();

tests/QueryTest.php

@@ -548,4 +548,28 @@ public function testMultipleSortOrder(): void
         $this->assertEquals('John Doe', $subset[1]->name);
         $this->assertEquals('Brett Boe', $subset[2]->name);
     }
+
+    public function testDelete(): void
+    {
+        $this->assertEquals(3, User::where('title', 'admin')->count());
+
+        // Delete a single document with filter
+        User::where('title', 'admin')->limit(1)->delete();
+        $this->assertEquals(2, User::where('title', 'admin')->count());
+
+        // Delete all with filter
+        User::where('title', 'admin')->delete();
+        $this->assertEquals(0, User::where('title', 'admin')->count());
+
+        // Check remaining fixtures
+        $this->assertEquals(6, User::count());
+
+        // Delete a single document
+        User::limit(1)->delete();
+        $this->assertEquals(5, User::count());
+
+        // Delete all
+        User::limit(null)->delete();
+        $this->assertEquals(0, User::count());
+    }
 }