ruby-on-rails - 使用 will_paginate/searchlogic 搜索多个字段

Question

如何在模型的多个字段中有效地进行搜索？

# user.rb model
def self.search(search, page)  
  paginate :per_page => 20, :page => page,
  :conditions => 
    ['name like ? OR notes like ? OR code like ? OR city like ? OR state like ?,
    "%#{search}%","%#{search}%","%#{search}%","%#{search}%","%#{search}%"
    ], :order => 'name'

这段代码对于任何多个字段来说都是可怕的，并且如果例如单词#1来自:name并且单词#2来自:code，则它不会返回结果。有没有更优雅的方式？

Answer 1

我认为这确实有效

def self.search(search, page)
  fields = [:name, :notes, :code, :city, :state] 
  paginate :per_page => 20, :page => page,
  :conditions => [fields.map{|f| "#{f} like ?"}.join(' OR '),
    *fields.map{|f| "%#{search}%"}], :order => 'name'