handle add/remove homies in backend

app/models/homie.rb

@@ -1,13 +1,13 @@
 class Homie < ApplicationRecord
   has_many :money_moves
+  belongs_to :chip
 
   def self.cash(importance)
-     totals = Homie.all.joins(:money_moves).group(:id).order(:id).sum(:amount)
+    totals = Homie.all.joins(:money_moves).group(:id).order(:id).sum(:amount)
 
-    result = [] 
     Homie.where(["importance > ?", importance]).map do |homie|
-      total = totals.fetch(homie.id, 0) 
-      { homie: homie, amount: total } 
+      total = totals.fetch(homie.id, 0)
+      { homie: homie, amount: total }
     end
   end
 end