如何使用 MongoMapper/Ruby 进行查询？
我开始将 NoSQL 与 Ruby 结合使用。这是我的代码
require 'mongo'
require 'mongo_mapper'
class User
include MongoMapper::Document
end
MongoMapper.connection = Mongo::Connection.new('localhost', 27017)
MongoMapper.database = "mydb"
all_users = MongoUser.where(:age => 1) # WORKS
all_users = MongoUser.where("age > 1") # DOESN'T WORK
如何使用 ActiveRecord 之类的查询？当我需要在查询中使用<、>、!=等时我需要做什么？
I started using NoSQL with Ruby. Here's the code I have
require 'mongo'
require 'mongo_mapper'
class User
include MongoMapper::Document
end
MongoMapper.connection = Mongo::Connection.new('localhost', 27017)
MongoMapper.database = "mydb"
all_users = MongoUser.where(:age => 1) # WORKS
all_users = MongoUser.where("age > 1") # DOESN'T WORK
How can I use ActiveRecord's like where querying? What do I need to do when I need to use <, >, != etc in queries?
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试试这个：
try this:
从此处开始阅读。 Mongomapper 建立在 Datamapper 理念之上，因此如果您想要更接近 ActiveRecord 的东西，请尝试 Mongoid。
Start to read here. Mongomapper is build on Datamapper philosophy, so if you want something closer to ActiveRecord try Mongoid.