Create migration with account wise

  self.table_name = "push_event_trackings1"

  def self.for account_id
    tname = "push_event_trackings#{account_id}"
    model_name = tname.classify
    if Object.const_defined?(model_name)
      fields_class = model_name.constantize
    else
      fields_class = Object.const_set(model_name, Class.new(PushTracking){
        self.table_name = tname
      })
    end
    return fields_class.using(:sms)
  end
 
  def self.create_table account_id
    fields_table_name = "push_event_trackings#{account_id}"
    Octopus.using(:sms) do
      ActiveRecord::Migration.execute "CREATE TABLE `#{fields_table_name}` (
        `id` bigint(20) NOT NULL AUTO_INCREMENT,
        `push_device_id` int(11) DEFAULT NULL,
        `push_event_id` int(11) DEFAULT NULL,
        `cart_id`  int(11) DEFAULT NULL,
        `sku` varchar(255) DEFAULT NULL,
        `description` varchar(255) DEFAULT NULL,
        `quantity` int(11) DEFAULT NULL,
        `value` float DEFAULT NULL,
        `product_category` varchar(255) DEFAULT NULL,
        `brand` varchar(255) DEFAULT NULL,
        `model_number` varchar(255) DEFAULT NULL,
        `order_id` varchar(255) DEFAULT NULL,
        `order_date` datetime DEFAULT NULL,
        `order_status` varchar(255) DEFAULT NULL,
        `coupon_code` varchar(255) DEFAULT NULL,
        `campaign_id` int(11) DEFAULT NULL,
        `session_id` int(11) DEFAULT NULL,
        `platform` int(11) DEFAULT NULL,
        `price` float DEFAULT NULL,
        `content_id` int(11) DEFAULT NULL,
        `title` varchar(255) DEFAULT NULL,
        `category` varchar(255) DEFAULT NULL,
        `event_data` text COLLATE utf8_unicode_ci,
        `latitude` float DEFAULT NULL,
        `longitude` float DEFAULT NULL,
        `created_at` datetime NOT NULL,
        `updated_at` datetime NOT NULL,
        PRIMARY KEY (`id`)
      ) ENGINE=InnoDB DEFAULT CHARSET=utf8"
      ActiveRecord::Migration.add_index(fields_table_name, :push_device_id)
      ActiveRecord::Migration.add_index(fields_table_name, :push_event_id)
    end
  end

  run migration on console according to account id
  account = Account.first
  PushEvenTracking.create account.id