add upsert_multi

lib/couchbase-orm/proxies/collection_proxy.rb

@@ -50,6 +50,19 @@ def remove_multi(ids, **options)
       result.reject(&:error)
     end
 
+    def upsert_multi!(id_content, **options)
+      result = @proxyfied.upsert_multi(id_content, Couchbase::Options::UpsertMulti.new(**options))
+      first_result_with_error = result.find(&:error)
+      raise first_result_with_error.error if first_result_with_error
+
+      result
+    end
+
+    def upsert_multi(id_content, **options)
+      result = @proxyfied.upsert_multi(id_content, Couchbase::Options::UpsertMulti.new(**options))
+      result.reject(&:error)
+    end
+
     def initialize(proxyfied)
       raise ArgumentError.new('Must proxy a non nil object') if proxyfied.nil?