add makeAllSearchableUsing

src/Searchable.php

@@ -123,13 +123,27 @@ public static function makeAllSearchable($chunk = null)
         $softDelete = static::usesSoftDelete() && config('scout.soft_delete', false);
 
         $self->newQuery()
+            ->when(true, function ($query) use ($self) {
+                $self->makeAllSearchableUsing($query);
+            })
             ->when($softDelete, function ($query) {
                 $query->withTrashed();
             })
             ->orderBy($self->getKeyName())
             ->searchable($chunk);
     }
 
+    /**
+     * Modify the query used to retrieve models when making all of the models searchable.
+     *
+     * @param  \Illuminate\Database\Eloquent\Builder  $query
+     * @return \Illuminate\Database\Eloquent\Builder
+     */
+    protected function makeAllSearchableUsing($query)
+    {
+        return $query;
+    }
+
     /**
      * Make the given model instance searchable.
      *

tests/SearchableTest.php

@@ -66,6 +66,14 @@ public function newQuery()
     {
         $mock = m::mock(Builder::class);
 
+        $mock->shouldReceive('when')
+                ->with(true, m::type('Closure'))
+                ->andReturnUsing(function ($condition, $callback) use ($mock) {
+                    $callback($mock);
+
+                    return $mock;
+                });
+
         $mock->shouldReceive('orderBy')
             ->with('id')
             ->andReturnSelf()