如何仅对特定用户（Rails Tire gem）的记录执行ElasticSearch查询

Question

I have a Mongoid model which I perform ElasticSearch search queries on. Very standard:

class ActivityLog
  include Mongoid::Document
  include Mongoid::Timestamps
  include Tire::Model::Search
  include Tire::Model::Callbacks

  field :extra, type: Hash

  belongs_to :user, :inverse_of => :activity_logs


  def self.search(params, user)
    tire.search(load: true, page: params[:page], per_page: 5) do
      query { string params[:query], default_operator: "AND" } if params[:query].present?
      sort { by :created_at, "desc" }
    end
  end

I am having a hard time understanding the documentation on how to do more advanced stuff, and currently I'm stuck in how to work into my search query that search should be restricted to ActivityLog objects that belongs to the user only.

Could anyone show me how to work the user._id match requirement into the search query?

Answer 1

Working with ElasticSearch, there are 2 parts: mapping and search

So, if you want to search by a field of association table (users table), right. There are many ways, but this one I often use for my project:

Inside the ActivityLog model

  mapping do
    indexes :id, type: 'integer'
    indexes :name, type: 'string', analyzer: 'snowball', boost: 5
    indexes :description, type: 'string', analyzer: 'snowball'
    indexes :description_latin, as: 'description.sanitize', type: 'string', analyzer: 'snowball'
    indexes :user_id, as: 'user.id', type: 'string', index: :not_analyzed
    indexes :user_name, as: 'user.name', type: 'string'
    indexes :created_at, type: 'date'
    indexes :slug, index: :not_analyzed
    indexes :publish, type: 'boolean', index: :not_analyzed
  end

Notify the user_id and user_name , the above definition of mapping method will map the user.id to the user_id , and user.name to user_name .

So now in search method, you can do some similar code like filter :terms, user_id: params[:search][:user_id]

Hope this help

Answer 2

对上述内容进行了一处更正，ElasticSearch删除了类型字符串，现在使用了文本。