Rails: .require.permit() not permitting param

Asked Sep 18 '15 at 17:23

Active Sep 18 '15 at 17:23

Viewed 312 times

I'm building a backend API with Rails 4.2.4 and came across this problem.

From the client I'm sending to the server a JSON payload of this structure:

{
    "Object":{
        "A": {...}
        "B": "..."
        "C": "..."        
    }
}

In the Object model that I created I have only attributes B and C, I would like to permit A to be sent in (optional), so I did

def object_params
    params.required(:object).permit(:A, :B, :C)
end

I thought this would do, but when I sent in the actual POST request, the server showed the following message: Unpermitted parameter: A.

Is there anything that I missed? Thanks!

asked Sep 18 '15 at 17:23

ddolce

Can you show us the actual JSON object you sent to the server? – Richard Peck Sep 18 '15 at 17:31
Sorry I can't go into the specifics but here's what the server saw (copied from terminal and replaced the variables) `Parameters: {"object"=>{"A"=>{...}, "B"=>"...", "C"=>"..." }}` – ddolce Sep 18 '15 at 17:43
What are you including in the `"A"=>{...}` parentheses? – Richard Peck Sep 18 '15 at 17:56
http://stackoverflow.com/questions/18349887/rails4-how-to-permit-hash-with-dynamic-keys-in-params – Florin Ionita Sep 18 '15 at 18:03
Thanks @FlorinIonita, `.tap` works, but is it deprecated (http://apidock.com/rails/Object/tap)? – ddolce Sep 18 '15 at 20:06

0 Answers0