`next_migration_number'：NotImplementedError（NotImplementedError）在rails中使用wysihat-engine

我正在使用以下gem編輯器。`next_migration_number'：NotImplementedError（NotImplementedError）在rails中使用wysihat-engine

gem "wysihat-engine", "~> 0.1.13"

當我運行的導軌上產生wysihat'這是生成所有的圖像文件，但下面的錯誤

c:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.3/lib/rails/generators/migration.rb:30:in `next_migration_number': NotImplementedError (NotImplementedError) 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.3/lib/rails/generators/migration.rb:49:in `migration_template' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/wysihat-engine-0.1.13/lib/generators/wysihat_generator.rb:60:in `install_wysihat' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/task.rb:22:in `run' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `block in invoke_all' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `each' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `map' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `invoke_all' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/group.rb:226:in `dispatch' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/base.rb:389:in `start' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.3/lib/rails/generators.rb:170:in `invoke' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.3/lib/rails/commands/generate.rb:12:in `<top (required)>' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `block in require' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:236:in `load_dependency' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require' 
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.3/lib/rails/commands.rb:29:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>'

感謝您的幫助不能產生遷移和奉獻！

來源

2012-06-18 vajapravin

use include include ActiveRecord :: Generators :: Base。（更新到寶石的最新版本可能有效）。

來源

2012-11-03 14:17:51

我只是跑在這個問題使用Rails 4.1.5

我在我的移民實施

class MigrationGenerator < ::Rails::Generators::Base 
    include Rails::Generators::Migration 

    def self.next_migration_number(dir) 
    Time.now.utc.strftime("%Y%m%d%H%M%S") 
    end 
end

所以這是一個黑客位的固定它。我找不到任何有關官方方式的文檔或爲什麼這是一個問題。

來源

2014-09-10 13:36:45 beno1604

require 'rails/generators/active_record' 
class YourGenerator < ActiveRecord::Generators::Base 
    # save you from `next_migration_number': NotImplementedError and undefined method `migration_template' 
end

來源

2016-07-23 14:44:00

`next_migration_number'：NotImplementedError（NotImplementedError）在rails中使用wysihat-engine

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