拼音字母搜索功能 之 gem

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拼音字母搜索功能


使用的gem:
　　https://github.com/huacnlee/redis-search



使用方法



配置文件路径: config/initializers/redis_search.rb

# -*- coding: utf-8 -*-
require "redis"
require "redis-namespace"
require "redis-search"

begin
redis = Redis.new(:host => "127.0.0.1",:port => "6379")
redis.select(3)

redis = Redis::Namespace.new("you_app_name:redis_search", :redis => redis)
Redis::Search.configure do |config|
config.redis = redis
config.complete_max_length = 100
config.pinyin_match = true
# 是否关闭中文分词，true为关闭，可节省内存占用
config.disable_rmmseg = true
end
rescue
p "redis server not running"
end



为模块做索引

class User < ActiveRecord::Base
include Redis::Search

def hits
# 计算权重
end

redis_search_index(:title_field => :name, #主要索引域
:alias_field => :login,  #次要的索引域
:score_field => :hits, #传入一个方法名，根据方法返回值来确定权重
:prefix_index_enable => true, #逐字索引，逐字搜索时开启
:condition_fields => [:role], #条件，传入的是一组字段，搜索时可以以         
:conditions => {:role => :admin}) 的方法使用。
:ext_fields => [:email, :created_at]) #其余需要索引的域
end

# 重新build索引
rake redis_search:index

搜索

# 逐字搜索
Redis::Search.complete("User", params[:query], :conditions => {:role => :admin})

# 全文搜索
Redis::Search.query("User", params[:query], :conditions => {:role => :admin})