[12.x] add SQLite support for whereNotMorphedTo method (#57698)

* add SQLite support for whereNotMorphedTo method

* Converts <=> operator to SQLite's IS operator in SQLiteGrammar

Author: faisuc

src/Illuminate/Database/Query/Grammars/SQLiteGrammar.php

@@ -43,6 +43,25 @@ protected function wrapUnion($sql)
         return 'select * from ('.$sql.')';
     }
 
+    /**
+     * Compile a basic where clause.
+     *
+     * @param  \Illuminate\Database\Query\Builder  $query
+     * @param  array  $where
+     * @return string
+     */
+    protected function whereBasic(Builder $query, $where)
+    {
+        if ($where['operator'] === '<=>') {
+            $column = $this->wrap($where['column']);
+            $value = $this->parameter($where['value']);
+
+            return "{$column} IS {$value}";
+        }
+
+        return parent::whereBasic($query, $where);
+    }
+
     /**
      * Compile a "where like" clause.
      *

tests/Database/DatabaseEloquentBuilderTest.php

@@ -2155,6 +2155,33 @@ public function testOrWhereNotMorphedToClass()
         $this->assertEquals(['baz', EloquentBuilderTestModelCloseRelatedStub::class], $builder->getBindings());
     }
 
+    public function testWhereNotMorphedToWithSQLite()
+    {
+        $model = new EloquentBuilderTestModelParentStub;
+        $this->mockConnectionForModel($model, 'SQLite');
+
+        $relatedModel = new EloquentBuilderTestModelCloseRelatedStub;
+        $relatedModel->id = 1;
+
+        $builder = $model->whereNotMorphedTo('morph', $relatedModel);
+
+        $this->assertStringNotContainsString('<=>', $builder->toSql());
+        $this->assertSame('select * from "eloquent_builder_test_model_parent_stubs" where not (("eloquent_builder_test_model_parent_stubs"."morph_type" IS ? and "eloquent_builder_test_model_parent_stubs"."morph_id" in (?)))', $builder->toSql());
+        $this->assertEquals([$relatedModel->getMorphClass(), $relatedModel->getKey()], $builder->getBindings());
+    }
+
+    public function testWhereNotMorphedToClassWithSQLite()
+    {
+        $model = new EloquentBuilderTestModelParentStub;
+        $this->mockConnectionForModel($model, 'SQLite');
+
+        $builder = $model->whereNotMorphedTo('morph', EloquentBuilderTestModelCloseRelatedStub::class);
+
+        $this->assertStringNotContainsString('<=>', $builder->toSql());
+        $this->assertSame('select * from "eloquent_builder_test_model_parent_stubs" where not "eloquent_builder_test_model_parent_stubs"."morph_type" IS ?', $builder->toSql());
+        $this->assertEquals([EloquentBuilderTestModelCloseRelatedStub::class], $builder->getBindings());
+    }
+
     public function testWhereMorphedToAlias()
     {
         $model = new EloquentBuilderTestModelParentStub;