ruby-on-rails - Searchkick word_start与嵌套字段匹配

Question

我有一个带有searchkick gem的Rails应用程序。我的模型有一个嵌套的JSON字段。我尝试通过word_start匹配使其可搜索。当我明确设置为:

class Post < ApplicationRecord 
  searchkick word_start: [:nested_data_field]
end

我无法工作，并且出现错误:

{"type"=>"mapper_parsing_exception", "reason"=>"failed to parse [nested_data_field]", "caused_by"=>{"type"=>"illegal_state_exception", "reason"=>"Can't get text on a START_OBJECT at 1:401"}} on item with id '2596'

如何使此嵌套JSON字段匹配word_start？

我在 https://github.com/ankane/searchkick/issues/1149中发现了相同的问题-但没有结果。

Answer 1

在这种情况下，您必须明确定义字段在Elasticsearch中的索引方式

class Post < ApplicationRecord 
  searchkick word_start: [:author_name, author_country]

  def search_data # override indexing fields
    {
     tite: self.title,
     date: self.created_at,
     author_name: author[:name], # nested json(author field)
     author_country: author[:country],
     comments_ids: comments.map(&:id) # index as an array of ids       
    }
  end
end