在生产中迁移时，不会将Symbol隐式转换为整数 [英] no implicit conversion of Symbol into Integer when migrating in production

问题描述

因此，我正在开发一个现有的应用程序，出于某种原因，我能够使其工作并在本地环境中进行镜像，但是当我尝试在heroku上迁移时，出现以下错误，有任何想法？ b
$ b

错误：

  == 20141119113015 CreateReleasedInventoryStatus：migrating = =================== 
  -  create_enum（eh_released_inventory_status，[rejected，pending，分配，释放，转移]）
 rake中止！ 
 StandardError：发生错误，此次及以后的所有迁移都已取消：
 
无符号转换为Integer / app / vendor / bundle / ruby​​ / 2.0.0 / gems / power_enum- 2.8.0 / lib / power_enum / schema / schema_statements.rb：84：在`[]'
 /app/vendor/bundle/ruby/2.0.0/gems/power_enum-2.8.0/lib/power_enum/ schema / schema_statements.rb：84：在`create_enum'
 /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:662:in`block in method_missing'
 /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in`block in say_with_time'
 / app /vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in`say_with_time'
 /app/vendor/bundle/ruby/2.0.0/ gems / activerecord-4.2.0 / lib / active_record / migration.rb：652：在`method_missing'
 /app/db/migrate/20141119113015_create_released_inventory_status.rb:3:in`change'
 / app /供应商/束/红宝石/ 2.0.0 /宝石/了activerecord-4.2.0 / LIB / active_record / migration.rb：606：在`exec_migration'
 /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:590:in`block （2级）迁移'
 /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:589:in'block in migrate'
 /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/connection 
  

迁移文件：

  class CreateReleasedInventoryStatus< ActiveRecord :: Migration 
 
 def change 
 create_enum（eh_released_inventory_status，[rejected，pending，allocated，released，transferred]）
 end 
 end 
  

我也使用以下gem：

  gem'power_enum'
  

$ b $您的迁移语法似乎对您正在使用的 power_enum gem不正确。

宝石的自述文件表示该语法使用名称，然后是一个选项散列，如：

$ p $ create_enum（status，{...}）


您使用的是名称，然后是数组：

  create_enum（eh_released_inventory_status，[...]）
  

可以说，解决方案是改变你发布的迁移线o power_enum 语法。自述文件包含大量示例，并且看起来很全面，并且非常详细。

So I'm working on an existing app and for some reason I was able to get it working and mirrored on my local environment however when I try migrating on heroku I get the below error, any ideas?

Error:

== 20141119113015 CreateReleasedInventoryStatus: migrating ====================
-- create_enum("eh_released_inventory_status", ["rejected", "pending", "allocated", "released", "transferred"])
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

no implicit conversion of Symbol into Integer/app/vendor/bundle/ruby/2.0.0/gems/power_enum-2.8.0/lib/power_enum/schema/schema_statements.rb:84:in `[]'
/app/vendor/bundle/ruby/2.0.0/gems/power_enum-2.8.0/lib/power_enum/schema/schema_statements.rb:84:in `create_enum'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:662:in `block in method_missing'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in `block in say_with_time'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in `say_with_time'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:652:in `method_missing'
/app/db/migrate/20141119113015_create_released_inventory_status.rb:3:in `change'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:606:in `exec_migration'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:590:in `block (2 levels) in migrate'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:589:in `block in migrate'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/connection

Migration file:

class CreateReleasedInventoryStatus < ActiveRecord::Migration

  def change
    create_enum("eh_released_inventory_status", ["rejected", "pending", "allocated", "released", "transferred"])
  end
end

I'm also using the following gem:

gem 'power_enum'

解决方案

Your migration syntax seems to be incorrect for the power_enum gem that you're using.

The gem's README says the syntax uses a name, then an options hash, such as:

create_enum("status", {…})

Whereas you're using a name, then an array:

create_enum("eh_released_inventory_status", […])

As far as I can tell, the solution is to change your migration line from what you posted to the power_enum syntax. The README has a bunch of examples, and also looks like it's thorough and very well documented.

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