rails helper method required parameters

Question

I've read this thread: Rails optional argument and tried to implement it in a Rails 4 helper function that looks like this:

# this is in the application helper
def getRank(team_id, week = '')
  if week.empty?
    week = Settings.pluck(:week) # grab the current week
  end
  # do some stuff to get the current team's rank
end

When I call this in the console however I still get:

> helper.getRank(5)
ArgumentError: wrong number of arguments (1 for 2)
from /home/rails_testing/app/helpers/application_helper.rb:24:in `getRank'

What am I missing?

you do have something after week = that is not a comment, right? — nPn, Sep 24 '14 at 02:07
@nPn it is `week = ''` -- the same as in the example I quoted. — user101289, Sep 24 '14 at 02:08
oh sure. I just commented the DB / model stuff to save typing. — user101289, Sep 24 '14 at 02:09
I think you need to show more of what you really have, I just added this to my ApplicationHelper (changed week = # grap to week = 3 #grap to get past the syntax error) and the did helper.getRank(5) and did not get any error — nPn, Sep 24 '14 at 02:15
Did you restart your `rails console` after changing that helper method? — spickermann, Sep 24 '14 at 02:21
are you sure the error is not in Setting.pluck(:week) needing 2 arguments? ... what is on line 24 ? — nPn, Sep 24 '14 at 02:21

score 3 · Accepted Answer · answered Sep 24 '14 at 02:26

3

The rails console reads your application code when it is started. Therefore you need to restart your rails console after changing your code.

answered Sep 24 '14 at 02:26

spickermann

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score 0 · Answer 2 · answered Sep 24 '14 at 06:12

0

You must restart your rails console every time you make changes in your code.

You can restart console with this reload! command.

answered Sep 24 '14 at 06:12

shweta

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rails helper method required parameters

2 Answers2