Something is wrong here. I keep getting the following error: field articles not an array It saves the magazine and the issue and links up the relationship there. It also links up the relationship on the first article and it saves the second article (without linking it up to the relationship). And then it crashes. What am I doing wrong here?

uninkd_publish

  def publish
    require 'parse-ruby-client'
    Parse.init :application_id => "App_ID", :api_key => "App_Key"
    @magazine = Magazine.find(params[:magazine_id])
    @issue = Issue.find(params[:id])

    # Checking to see whether we have a magazine already. Making a new one if we don't and grabbing the old one if we do.
    current_magazine = Parse::Query.new("Magazine").value_in("title", [@magazine.title]).get
    magazine = nil
    if current_magazine.length == 0
      magazine = Parse::Object.new "Magazine"
      magazine["title"] = @magazine.title
      magazine["description"] = @magazine.description
      magazine.save
    else
      magazine = current_magazine.first
    end

    # Checking to see if we have an issue with the same title as the current one. Deleting it if we do.
    current_issue = Parse::Query.new("Issue").value_in("title", [@issue.title]).get
    issue = nil
    if current_issue.length == 0 
      issue = Parse::Object.new "Issue"
      issue["title"] = @issue.title
      issue["description"] = @issue.description
      issue.save

      magazine.array_add_relation("issues", issue.pointer)
      magazine.save
    else
      current_issue.first["title"] = @issue.title
      current_issue.first["description"] = @issue.description
      current_issue.first.save
      issue = current_issue.first
    end

    # Creating all the articles
    @issue.articles.each do |a|
      current_article = Parse::Query.new("Article").value_in("title", [a.title]).get
      if current_article.length == 0
        article = Parse::Object.new "Article"
        article["title"] = a.title
        article["main_text"] = a.main_text
        article.save

        issue.array_add_relation("articles", article.pointer)
        issue.save
      else
        current_article.first["title"] = a.title
        current_article.first["main_text"] = a.main_text
        current_article.first.save
      end      
    end
  end

This is the exact error I'm getting:

RuntimeError in IssuesController#publish

field articles not an array

app/controllers/issues_controller.rb:46:in `block in publish'
app/controllers/issues_controller.rb:38:in `publish'