Undefined method error for input parameters to a function

Question

I am getting the following error:

ShowsQueryObject querying for a show by start date returns shows that are after the start date
     Failure/Error: expect(ShowsQueryObject.query(start_date: start_date)).to match_array [after_start_date_show_1, after_start_date_show_2]
     NoMethodError:
       undefined method `query_params' for ShowsQueryObject:Class

For this code:

class ShowsQueryObject
  class << self
    def query(query_params)
      Show.where(query_string(query_params), query_values(query_params))
    end

    private

    def query_string(query_params)
      query_string = []
      query_string << start_date_query if query_params(:start_date)
      query_string << end_date_query if query_params(:end_date)
      query_string << artist_name_query if query_params(:artist_name)
      query_string << venue_id_query if query_params(:venue_id)
      query_string.join(' AND ')
    end

    def query_values(query_params)
      {}.tap do |hash|
        hash[:start_date] = query_params(:start_date) if query_params(:start_date)
        hash[:end_date] = query_params(:end_date) if query_params(:end_date)
        hash[:artist_name] = query_params(:artist_name) if query_params(:artist_name)
        hash[:venue_id] = query_params(:venue_id) if query_params(:venue_id)
      end
    end

    ...
  end
end

I am guessing this has something to do with private static methods in Ruby? This is my first time messing around with class << self so I'm assuming I did something wrong, but from what I can find on line this all looks legit to me.

amaiaeskisabel · Accepted Answer · 2015-08-15 14:30:32Z

2

You should try changing query_params(:start_date) to query_params[:start_date], because if you put it with "()" ruby takes it as a method and not a property

answered Aug 15, 2015 at 14:30

amaiaeskisabel

3441 silver badge5 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

ThomYorkkke Over a year ago

Wow, that's embarrassing. That worked though, thanks.

Collectives™ on Stack Overflow

Undefined method error for input parameters to a function

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related