Nested array is empty in browser and in RSpec

[developer88]

Faced a strange problem or bug. I have a route with strong parameters method:

 def st_params
    params.permit([:id, logs: [], metric_ids: []])
 end

Then i call it with, for example, rspec:

 post some_path(format:json, metric_ids:[ [1,0,1], [5,1,4] ])

And when i call a st_params method there is no metric_ids param and i have received message in logs: Unpermitted parameters: metric_ids, but if i change st_params method like this:

 def st_params
    p = params.permit([:id, logs: [], metric_ids: []])
    p[:metric_ids] = params[:metric_ids]
    # or just p = params.permit!
    p
 end

Now, everything works fine in browser, but in rspec i have received nil value for metric_ids in any case :( I have not found any information about the problem in documentation. Maybe someone here will help me.

[kaspernj]

Try this fix:

gem 'strong_parameters', git: "https://github.com/kaspernj/strong_parameters.git", branch: "kj/fixed_integers_as_keys"

Also submitted as PR here:
#221

[thomasfedb]

What version of Rails are you using? If you're using Rails 4 of later, you should submit your issues against rails/rails. This is a compatibility gem for Rails versions prior to 4.

Further, sending an array of array of integers is not something that is generally accommodated by Rails, which generally would represent such data using a hash.

I'd suggest this be closed @fxn.