Méthode pour remplacer la vieille classe des questions avec des questions récemment classement

Question

def replaceranked 
     oldrankings = Question.where(:rank => [1,2,3,4,5]) 

     # Mocking the creation of a new top 5 
     newrankings = Question.where(:id => [4,5,6,7,8]) 
     newrankings.each_with_index |a, i| 
      a.rank = i+ 
     end 

     oldids = oldrankings.map{|a| a.id} 
     newids = newrankings.map{|a| a.id} 
     simlarities = oldids & newids 

     oldrankings.each_with_index do |a, i| 
      if !(similarities.includes?(a.id)) 
       newrankings.push(a) 
       oldrankings.delete_at(i) 
      end 
     end 

     oldrankings.map{|a| a.rank = nil} 
     updatedtopfive = newrankings | oldrankings 
     updatedtopfive.map{|a| a.save} 
    end 

SyntaxError: (RIR): 275: erreur de syntaxe, unexpected '}' (RIR): 280: erreur de syntaxe, tIDENTIFIER inattendue, expecting ':' . ..newrankings.push (a) oldrankings.delete_at (i): suivant} ...^ (irb): 280: erreur de syntaxe, inattendue ':', attendez '}' ... h (a) oldrankings .delete_at (i): suivant} ...^ (irb): 284: erreur de syntaxe, inattendu keyword_end, attendez '}' depuis lib/rails/commands/console.rb: 44: dans start' from lib/rails/commands/console.rb:8:in start ' from lib/rails/comm ands.rb: 23: dans <top (required)>' from script/rails:6:in require ' de script/rails: 6: dans `'

Question Modèle

Id:Integer 
    Content:String 
    Rank:Integer #Normally Null unless ranked in which case you'll have a rank of 1 to 5 

Answer 1

manque un 'faire' dans la première #each_with_index

https://gist.github.com/da8d811e0d8033c1b0a9