You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: votes_controller.rb
    path of file: ./repos/ruby-docs-samples/cloud-sql/mysql/activerecord/app/controllers
    
    the code of the file until where you have to start completion: # Copyright 2019 Google, Inc
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# 
    
  def create
    # [START cloud_sql_mysql_activerecord_connection]
    @vote = Vote.new candidate: candidate

    # ActiveRecord creates and executes your SQL and automatically
    # handles the opening and closing of the database connection.
    if @vote.save
      render json: "Vote successfully cast for \"#{@vote.candidate}\" at #{@vote.time_cast} PST!"
    else
      render json: @vote.errors, status: :unprocessable_entity
    end