Rake任務 - 未定義的方法

Question

我修補我的方法來創建一個耙子任務，抓取給定頁面的簽入量扔臉譜。我使用考拉寶石和鐵軌。

我這樣做是通過創建一個rake任務：

task :get_likes => :environment do 
    require 'koala' 
    # Grab the first user in the database 
    user = User.first 

    # Loop throw every school & and call count_checkins 
    School.columns.each do |column| 
     user.facebook.count_checkins(column.name, user) 
    end 
end 
# Count like for every school else return 0 
def count_checkins(name, u) 
    a = u.facebook.fql_query('SELECT checkins FROM page WHERE name = "' + name + '"') 
    if a[0].nil? 
     return 0 
    else 
     return b = a[0]["checkins"] 
    end 
end 
# Initialize an connection to the facebook graph 
def facebook 
    @facebook ||= Koala::Facebook::API.new(oauth_token) 
end 

但我得到一個錯誤：

private method `count_checkins' called for #<Koala::Facebook::API:0x007fae5bd348f0> 

任何意見或更好的方式來編寫一個rake任務將是真棒！

檢查完整的錯誤在這裏：https://gist.github.com/shuma/4949213

Answer 1

真的不能格式化這個正確的評論，所以我把它放在一個答案。我把下面進入用戶模式：

# Count like for every school else return 0 
def count_checkins(name) 
    a = self.facebook.fql_query('SELECT checkins FROM page WHERE name = "' + name + '"') 
    if a[0].nil? 
     return 0 
    else 
     return b = a[0]["checkins"] 
    end 
end 

# Initialize an connection to the facebook graph 
def facebook 
    @facebook ||= Koala::Facebook::API.new(oauth_token) 
end 

然後改變耙任務：

task :get_likes => :environment do 
    require 'koala' 
    # Grab the first user in the database 
    user = User.first 

    # Loop throw every school & and call count_checkins 
    School.columns.each do |column| 
     user.count_checkins(column.name) 
    end 
end 

這樣count_checkins定義的用戶模型，而不是試圖修改內考拉類 - 而且您不必複製工作，因爲必須傳遞更多的用戶和Facebook參數。