Rails: NoMethodError - undefined method 'save'

Question

In my controller I have this:

def hours_create
  @hour = params[:hour].map { |hour_attrs| Hour.create(hour_attrs) }  
  if @hour.save
    redirect_to :back, notice: "hour created."
  else
    render :new
  end
end  

The error is coming from @hour.save, but not sure what to replace it, because I need to redirect the page somehow when item is saved into my database?

Why is there this error?

Thanks

Answer 1

This error is happening because map returns an array, and you're attempting to call save on that. Arrays within Ruby do not have the method save defined, hence the error.

Why are you trying to save anyway? create will validate the record and save it to the database if it's valid. You might want to use create! instead and rescue the ActiveRecord::RecordInvalid error that's thrown when that fails:

def hours_create
  begin
    params[:hour].each { |hour_attrs| Hour.create!(hour_attrs) }  
  rescue ActiveRecord::RecordInvalid
    render :new
  else
    redirect_to :back, notice: "hour created."
  end
end  

---

Why is this action called hours_create? This is a code smell imo. It sounds like it should be in a controller of its own called Hours, which itself has a create method.