don't raise error when pass quiet as true in find

lib/couchbase-orm/base.rb

@@ -246,11 +246,14 @@ def find(*ids, quiet: false)
 
                 ids = ids.flatten.select { |id| id.present? }
                 if ids.empty?
-                    raise CouchbaseOrm::Error::EmptyNotAllowed, 'no id(s) provided'
+                    raise CouchbaseOrm::Error::EmptyNotAllowed, 'no id(s) provided' unless quiet
+                    return nil if quiet
                 end
 
                 transcoder = CouchbaseOrm::JsonTranscoder.new(ignored_properties: ignored_properties)
                 records = quiet ? collection.get_multi(ids, transcoder: transcoder) : collection.get_multi!(ids, transcoder: transcoder)
+                return nil if records.nil?
+
                 CouchbaseOrm.logger.debug { "Base.find found(#{records})" }
                 records = records.zip(ids).map { |record, id|
                     self.new(record, id: id) if record

spec/base_spec.rb

@@ -212,6 +212,14 @@ class BaseTestWithIgnoredProperties < CouchbaseOrm::Base
         expect(base.created_at).to be_a(Time)
     end
 
+    it 'should raise error when get object by nil id with quiet as false' do
+        expect { BaseTest.find(nil, quiet: false) }.to raise_error(CouchbaseOrm::Error::EmptyNotAllowed)
+    end
+
+    it 'should not raise error when get object by nil id with quiet as true' do
+        expect { BaseTest.find(nil, quiet: true) }.not_to raise_error
+    end
+
     describe BaseTest do
         it_behaves_like "ActiveModel"
     end