CODEWITHSUNDEEP
ruby-on-railsjsonrest
Rizowski
Rizowski

Reputation: 3598

Object expected Hash found, Ruby on Rails, Rest

I have written up a Rest api for my website. Currently I have it so that a user has many computers that they can own. I am trying to send a json payload that updates the user account with a computer. For testing this is what I send:

 {"auth_token"=>"AiprpscAqN6hnvNDHSwh",
 "user"=>"{"id":1,
 "username":"Rizowski",
 "email":"[email protected]",
 "computer":[{"id":0,
    "user_id":1,
    "name":"Desktop",
    "enviroment":"Windows 8",
    "ip_address":"192.168.1.10",
    "account":[]}]}",
 "format"=>"json",
 "id"=>"1"}

Once I send it, the Rails controller receives it and parses the request into a hash using the JSON.parse method. Once I try to save the user object it says this:

ActiveRecord::AssociationTypeMismatch in Api::V1::UsersController#update 
Computer(#51701664) expected, got Hash(#17322756)

Side question: I am still trying to completely understand rails and rest, but is it a good practice to send a computer object as I am? OR should I be sending the computer data through my computer api controller?

Upvotes: 0

Views: 415

Answers (1)

Daniel Evans
Daniel Evans

Reputation: 6808

The solution to your error is to use the key computer_attributes instead of computer.

This is a normal practice for strongly associated and hierarchical data. If computers are going to be updated independently of user, you should certainly use its own controller.

Upvotes: 1

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