[feature] Added ->toSql() for raw wheres

README.md

@@ -41,6 +41,8 @@ This package adds functionalities to the Eloquent model and Query builder for Mo
     - [Cross-Database Relationships](#cross-database-relationships)
     - [Authentication](#authentication)
     - [Queues](#queues)
+  - [Debugging](#debugging)
+    - [->toSql()](#tosql)
   - [Upgrading](#upgrading)
       - [Upgrading from version 2 to 3](#upgrading-from-version-2-to-3)
 
@@ -731,7 +733,7 @@ The belongsToMany relation will not use a pivot "table" but will push id's to a
 If you want to define custom keys for your relation, set it to `null`:
 
 ```php
-use Jenssegers\Mongodb\Eloquent\Mode;
+use Jenssegers\Mongodb\Eloquent\Model;
 
 class User extends Model
 {
@@ -1075,6 +1077,24 @@ Last, add the service provider in `config/app.php`:
 Jenssegers\Mongodb\MongodbQueueServiceProvider::class,
 ```
 
+Debugging
+---------
+
+### ->toSql()
+
+Hence we are in a NoSQL driver, it is counter-intuitive to use `toSql()` to output the string that will be executed.
+
+However, if you still need the string that looks like the sql for some inspection, you can use the `toSql()` method:
+
+```php
+User::where('some_field', '>', 300)
+    ->whereRaw(['age' => ['$gt' => 30, '$lt' => 40]])
+    ->toSql();
+
+// output
+"select * from "users" where "some_field" > ? and {"age":{"$gt":30,"$lt":40}}"
+```
+
 Upgrading
 ---------
 

src/Jenssegers/Mongodb/Query/Grammar.php

@@ -6,4 +6,19 @@
 
 class Grammar extends BaseGrammar
 {
+    /**
+     * {@inheritdoc}
+     */
+    protected function compileWheresToArray($query)
+    {
+        return collect($query->wheres)->map(function ($where) use ($query) {
+            $baseWhere = $this->{"where{$where['type']}"}($query, $where);
+
+            if (isset($where['sql']) && is_array($where['sql'])) {
+                $baseWhere = json_encode($baseWhere);
+            }
+
+            return $where['boolean'].' '.$baseWhere;
+        })->all();
+    }
 }

tests/ModelTest.php

@@ -440,7 +440,7 @@ public function testCarbonDateMockingWorks()
 
         Carbon::setTestNow($fakeDate);
         $item = Item::create(['name' => 'sword']);
-        
+
         $this->assertLessThan(1, $fakeDate->diffInSeconds($item->created_at));
     }
 
@@ -572,4 +572,25 @@ public function testChunkById(): void
 
         $this->assertEquals(3, $count);
     }
+
+    public function testToSql(): void
+    {
+        $this->assertTrue(
+            is_string(User::where('age', 30)->toSql())
+        );
+
+        $this->assertTrue(
+            is_string(User::whereRaw(['age' => ['$gt' => 30, '$lt' => 40]])->toSql())
+        );
+
+        $this->assertEquals(
+            'select * from "users" where "some_field" > ?',
+            User::where('some_field', '>', 300)->toSql()
+        );
+
+        $this->assertEquals(
+            'select * from "users" where "some_field" > ? and {"age":{"$gt":30,"$lt":40}}',
+            User::where('some_field', '>', 300)->whereRaw(['age' => ['$gt' => 30, '$lt' => 40]])->toSql()
+        );
+    }
 }