Elasticsearch -未定义方法`as_indexed_json‘

Question

我可以使用elasticsearch搜索我的应用程序中没有问题的基本关键词搜索，但是as_indexed_json显然没有工作，我也不知道为什么。我正在关注这个教程，讨论的部分几乎已经进行了一半。

如果我需要提供更多的信息，请告诉我。我对这件事很陌生，所以如果这是个愚蠢的问题，我很抱歉。

Rails控制台：

2.2.4 :011 > Term.first.as_indexed_json

Term Load (0.4ms)  SELECT  "terms".* FROM "terms"  ORDER BY "terms"."id" ASC LIMIT 1

NoMethodError: undefined method `as_indexed_json' for #<Term:0x007fa6cd9a6408>
from /Users/emplumb/.rvm/gems/ruby-2.2.4/gems/activemodel-4.2.5/lib/active_model/attribute_methods.rb:433:in `method_missing'
from (irb):11
from /Users/emplumb/.rvm/gems/ruby-2.2.4/gems/railties-4.2.5/lib/rails/commands/console.rb:110:in `start'
from /Users/emplumb/.rvm/gems/ruby-2.2.4/gems/railties-4.2.5/lib/rails/commands/console.rb:9:in `start'
from /Users/emplumb/.rvm/gems/ruby-2.2.4/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:68:in `console'
from /Users/emplumb/.rvm/gems/ruby-2.2.4/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /Users/emplumb/.rvm/gems/ruby-2.2.4/gems/railties-4.2.5/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>' 

型号：

require 'elasticsearch/model'

class Term < ActiveRecord::Base
  include Elasticsearch::Model
  include Elasticsearch::Model::Callbacks

  def as_indexed_json(options = {})
    as_json(
      only: [:name, :definition, :etymology1, :etymology2, :uses, :romance_cognates, :notes1, :notes2, :quote1, :quote2]
    )
  end

end

Answer 1

基于该教程，我希望您使用irb打开rails c。

但是打开像这个bundle exec rails c这样的控制台，然后再试一次