小编use*_*650的帖子

我尝试解析JSON响应.

@response = ActiveSupport::JSON.decode(@data.body)

@响应:

{"response"=>[{"name"=>"Den", "other"=>[{"sex"=>"male"}]}]}

如何访问

@response['response']['name'] 

和

@response['response']['name']['sex']

我有一个模型任务

t.string   "name"
t.hstore   "actions"

例:

#<Task id: 1, name: "first", actions: {"today"=>"9"}, 
#<Task id: 2, name: "second", actions: {"yesterday"=>"1"}, 
#<Task id: 3, name: "third", actions: nil,
#<Task id: 4, name: "four", actions: {"today"=>"11"},

我需要找到行动的所有记录:nil,:今天<10和关键:今天不存在.这是1,2,3任务.

Task.where("actions -> 'today' < '10'") - it return only first task.
Task.where("actions -> 'today' < '10' OR actions IS NULL")  - it return 1 and 3 records.

我怎么能找到所有没有钥匙的记录:今天在行动？