填充模型在的has_many關係

我有一個Rails應用程序，填充模型在的has_many關係

a="https://spreadsheets.google.com/feeds/list/1ncyK8uXoeLobVkdiSKQcYJr2joK_uN5QSBB3814GKaw/od6/public/values"

我使用feedjira獲取並從進料解析數據從以下rss_feed獲取數據。我有2種型號，security.rb和stock_quote.rb模型，如下：

security.rb

# == Schema Information 
    # 
    # Table name: securities 
    # 
    # id   :integer   not null, primary key 
    # security :string(255) 
    # category :string(255) 
    # created_at :datetime 
    # updated_at :datetime 
    # 

class Security < ActiveRecord::Base 
    has_many :stock_quotes, dependent: :destroy 
end

stock_quote.rb

# == Schema Information 
    # 
    # Table name: stock_quotes 
    # 
    # id    :integer   not null, primary key 
    # security_id  :integer 
    # guid    :string(255) 
    # created_at  :datetime 
    # updated_at  :datetime 
    # yesterday   :decimal(8, 2) 
    # current   :decimal(8, 2) 
    # price_change  :string(255) 
    # percentage_change :string(255) 
    # high    :decimal(8, 2) 
    # low    :decimal(8, 2) 
    # guid_id   :string(255) 
    # published_at  :datetime 
    # 

    class StockQuote < ActiveRecord::Base 
    belongs_to :security, class_name: "Security", foreign_key: 'security_id' 

    def self.price_on(date) 
    where("date(created_at) = ?", date).sum(:high) 
    end 

    feed_url = "https://spreadsheets.google.com/feeds/list/1ncyK8uXoeLobVkdiSKQcYJr2joK_uN5QSBB3814GKaw/od6/public/values" 
    def self.update_from_feed(feed_url) 
     feed = Feedjira::Feed.fetch_and_parse(feed_url) 
      unless feed.is_a?(Fixnum) 
      add_entries(feed.entries) 
      else 
      puts feed.inspect 
      end 
    end 

     def self.update_from_feed_continuously(feed_url,delay_interval=2.minutes) 
     feed = Feedjira::Feed.fetch_and_parse(feed_url) 
     add_entries(feed.entries) 

     loop do 
     sleep delay_interval 
     feed = Feedjira::Feed.update(feed_url) 
     add_entries(feed.new_entries) if feed.updated? 
     end 
     end 

    private 


    def self.add_entries(entries) 
     entries.each do | entry | 
    unless exists? guid: entry.id 
    b = entry.content 
    anydate = b.scan(/\d{4}\/\d{2}\/\d{2}/) 
    if !anydate.empty? 
     anydate.each {|s| b = b.gsub(s,'0').gsub(",",".")} 
    else 
     b = b.gsub(",",".") 
    end 
    content = b.scan(/(?<=[ *])-?\d[\d.]+/).map(&:to_f) 

    d=Security.find_or_create_by(security: entry.title.capitalize) 
    d.stockquote.create!(
     yesterday: content[0], 
     current: content[1], 
     change: content[2].to_s, 
     percentage_change: content[3].to_s, 
     high: content[4], 
     low: content[5], 
     published_at: entry.updated, 
     guid: entry.id 
    ); 
    end    
end 
end 
end

然而，當我去到我的應用程序的軌道控制檯，並做

z = "https://spreadsheets.google.com/feeds/list/1ncyK8uXoeLobVkdiSKQcYJr2joK_uN5QSBB3814GKaw/od6/public/values" 

StockQuote.update_from_feed(z)

我得到一個錯誤：

NoMethodError: undefined method `stockquote' for #<String:0xcaf76a0>

我一直在使用

d.stockquotes.create!

也試過，但我得到了同樣的錯誤

NoMethodError: undefined method `stockquotes' for #<Security:0xb786e7c>

來源

2014-05-13 chris

您是否嘗試過這一點。

d.stock_quotes.create!

你的關係定義has_many :stock_quotes

來源

2014-05-13 10:10:49

填充模型在的has_many關係

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