我目前正在使用elasticsearch通过名称查找客户端,如果输入完整名称,它会起作用。但是,即使客户只输入名称的前两个字母,我也需要能够搜索。我试图使用部分匹配,但我得到这个错误。部分匹配elasticsearch rails
AdGroup.__elasticsearch__.create_index! force:true
[!!!] Index does not exist (Elasticsearch::Transport::Transport::Errors::NotFound)
Elasticsearch::Transport::Transport::Errors::BadRequest: [400] {"error":{"root_cause":[{"type":"mapper_parsing_exception","reason":"analyzer on field
[client_name] must be set when search_analyzer is
set"}],"type":"mapper_parsing_exception","reason":"Failed to parse
mapping [ad_group]: analyzer on field [client_name] must be set when
search_analyzer is set","caused_by":{"type":"mapper_parsing_exception","reason":"analyzer on field [client_name] must be set when search_analyzer is set"}},"status":400}
我的模型/广告group.rb
class AdGroup < ActiveRecord::Base
include Elasticsearch::Model
include Elasticsearch::Model::Callbacks
settings analysis: {
filter: {
ngram_filter: { type: "nGram", min_gram: 2, max_gram: 12 }
},
analyzer: {
index_ngram_analyzer: {
type: 'custom',
tokenizer: 'standard',
filter: ['lowercase', 'ngram_filter']
},
search_ngram_analyzer: {
type: 'custom',
tokenizer: 'standard',
filter: ['lowercase']
}
}
} do
mapping do
indexes :published
indexes :client_name,:type => "string", index_analyzer: "index_ngram_analyzer", search_analyzer: "search_ngram_analyzer"
indexes :created_at
indexes :updated_at
indexes :preview_updated_at
end
end
控制器/广告组
class AdGroupsController < ApplicationController
def index
if params[:client_name]
@ad_groups = AdGroup.search(params[:client_name]).page(params[:page]).results
else
@ad_groups = AdGroup.includes(:client).where(is_template: false).paginate(:page => params[:page]).order('id DESC')
end
end
end
任何想法,为什么?
谢谢!这解决了这个问题,但仍然无法让它做一个部分匹配。 –
你在用什么查询?你可以发布你的方法吗? – davide
顺便说一句,如果你想与第一个输入字符匹配,我最好使用'edge_ngram'过滤器。见https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-edgengram-tokenizer.html – davide