Rails5迁移:无法引用Array

Question

我尝试将我的应用程序从Rails 4迁移到Rails 5这是我的迁移:

class AddRevealedIdsToUser < ActiveRecord::Migration[5.0]
  def change
    add_column :users, :revealed_ids, :text, default: []
  end
end

和型号:

serialize :revealed_ids

它在Rails 4中运行得很好,现在我有一个错误:

== 20160416214334 AddRevealedIdsToUser: migrating =============================
-- add_column(:users, :revealed_ids, :text, {:default=>[]})
rails aborted!
StandardError: An error has occurred, this and all later migrations canceled:

can't quote Array
/usr/local/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/quoting.rb:177:in `_quote'
/usr/local/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql/quoting.rb:96:in `_quote'

怎么解决？

Answer 1

作为临时解决方案,我手动序列化它.

add_column :users, :revealed_ids, :text, default: [].to_yaml

在Rails存储库中打开了一个问题.

Answer 2

您可以尝试添加array:true到迁移中。

add_column :users, :revealed_ids, :text, default: [], array:true

这为我解决了。