Rails 升级到 4.2 来自 arel 的 Stack too deep 错误
Rails upgrade to 4.2 Stack too deep error from arel
我正在进行 rails 升级并且已经成功升级到 4.1.16
现在要跳转到 4.2... 能够成功 运行 bundle update 但是当我尝试 运行 我的规格时，我得到了少量 SystemStackError 如下：
//home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:14:in `rescue in visit': stack level too deep (SystemStackError)
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13:in `visit'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:241:in `block in visit_Arel_Nodes_SelectCore'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240:in `each'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240:in `each_with_index'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240:in `visit_Arel_Nodes_SelectCore'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:210:in `block in visit_Arel_Nodes_SelectStatement'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209:in `each'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209:in `inject'
... 9265 levels...
from /home/vagrant/.rvm/gems/ruby-2.2.3/bin/rspec:23:in `load'
from /home/vagrant/.rvm/gems/ruby-2.2.3/bin/rspec:23:in `<main>'
from /home/vagrant/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
from /home/vagrant/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
我想弄清楚changed/updated这里需要什么，谢谢。
P.S: Ruby 版本为 2.2.3
#更新：
我在之前的堆栈跟踪中犯了一个错误，是错误的，我现在已经更新了。
#更新（03/16）：
这似乎是由设计引起的......
我设法将错误追溯到 config/initializers/devise.rb 中的以下行：
require 'devise/orm/active_record'
我找到了...
所以，因为我试图避免 this issue which also has a Whosebug post here，所以我的设计版本似乎太高了。
我之前是运行设计的3.2.1，我把它升到3.5.1。如果我一次只更新一个 gem 我会注意到这一点...
但是，版本 3.4.1 现在对我来说非常适用。
我可能还应该提到我的 pg gem 版本是 0.17.0.
我正在进行 rails 升级并且已经成功升级到 4.1.16
现在要跳转到 4.2... 能够成功 运行 bundle update 但是当我尝试 运行 我的规格时，我得到了少量 SystemStackError 如下：
//home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:14:in `rescue in visit': stack level too deep (SystemStackError)
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13:in `visit'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:241:in `block in visit_Arel_Nodes_SelectCore'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240:in `each'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240:in `each_with_index'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240:in `visit_Arel_Nodes_SelectCore'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:210:in `block in visit_Arel_Nodes_SelectStatement'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209:in `each'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209:in `inject'
... 9265 levels...
from /home/vagrant/.rvm/gems/ruby-2.2.3/bin/rspec:23:in `load'
from /home/vagrant/.rvm/gems/ruby-2.2.3/bin/rspec:23:in `<main>'
from /home/vagrant/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
from /home/vagrant/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
我想弄清楚changed/updated这里需要什么，谢谢。
P.S: Ruby 版本为 2.2.3
#更新： 我在之前的堆栈跟踪中犯了一个错误，是错误的，我现在已经更新了。
#更新（03/16）：
这似乎是由设计引起的......
我设法将错误追溯到 config/initializers/devise.rb 中的以下行：
require 'devise/orm/active_record'
我找到了...
所以，因为我试图避免 this issue which also has a Whosebug post here，所以我的设计版本似乎太高了。
我之前是运行设计的3.2.1，我把它升到3.5.1。如果我一次只更新一个 gem 我会注意到这一点...
但是，版本 3.4.1 现在对我来说非常适用。
我可能还应该提到我的 pg gem 版本是 0.17.0.