轉換「複雜」的JSON數據中的哈希

Question

我對Rails 3的使用Ruby和我想下面的JSON數據

"{\"errors\":{\"base\":\"Invalid field.\"}}" 

這種方式轉換成可訪問一個哈希：

@internal_test1[:errors][:base] 
# => "Invalid field" 

如何做到這一點？

---

UPDATE

@internal_test1 = "{\"errors\":{\"base\":\"Invalid email/password combination.\"}}" 
test = ActiveSupport::JSON.decode(@internal_test1) 
@internal_test2 = test["errors"] 

調試是

@internal_test1 
--- "{\"errors\":{\"base\":\"Invalid email/password combination.\"}}" 

@internal_test2 
--- 
base: Invalid email/password combination. 

Answer 1

> @internal_test1 = ActiveSupport::JSON.decode "{\"errors\":{\"base\":\"Invalid field.\"}}" 
=> {"errors"=>{"base"=>"Invalid field."}} 
> @internal_test1["errors"] 
=> {"base"=>"Invalid field."}