I have this in my controller:
params.require(:item).permit!
Let's assume this rspec spec, which works as expected:
put :update, id: @item.id, item: { name: "new name" }
However, the following causes ActionController::ParameterMissing
:
put :update, id: @item.id, item: nil
It has to do with controller macros that I use for other actions and through which I cannot control the params being sent (the macros checks for user credentials, so I don't really care about actually testing an #update
action, rather I just test before_filters for it).
So my question is: How do I make params[:item]
optional, yet still filter attributes within it if it's present?
What about:
params.require(:item).permit! if params[:item]
You cannot require an optional parameter. That is contradictory.
Edit: as mtjhax mentioned in his comment, there is advice from here to use fetch
instead: params.fetch(:item, {}).permit!
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