mongoid嵌入文档标准，不承认

问题描述：


class Scammer 
    include Mongoid::Document 
    field :email_used 
    field :phone_used 
    field :name_used 
    field :first_logged, type: DateTime 
    field :last_scam_attempt, type: DateTime 
    field :checked, type: Integer, default: 0 
    field :scams_count, type: Integer 
    field :common_commodity 
    field :status 
    embeds_many :reports 
    embeds_many :reporters 
    embeds_many :requestors 
end 

class Report 
    include Mongoid::Document 
    embedded_in :scammer 
    field :reported, type: DateTime 
    field :posed_as 
    field :encountered_through 
    field :commodity 
    field :details 
    field :logged_by 
end 

class Reporter 
    include Mongoid::Document 
    embedded_in :scammer 
    field :reporter_ip 
    field :captured, type: DateTime 
end 

class Requestor 
    include Mongoid::Document 
    embedded_in :scammer 
    field :requestor_ip 
    field :captured, type: DateTime 
end

现在这里是我用来尝试做一些有这些模特



    # It's an email address, 
    if Scammer.where(email_used: @search_term).exists? 
     if not Scammer.requestors.where(requestor_ip: request.remote_ip).exists? 
     Scammer.requestors.create(requestor_ip: request.remote_ip, captured: DateTime.current()).save 
         end 
         @return = Scammer.where(email_used: @search_term).to_json 
        else 
         # No entry found. We should now add this to the database as a search 
         @newscammer = Scammer.new(email_used: @search_term, checked: 1, first_logged: DateTime.current(), status: "Seems Legit") 
         @newscammer.requestors.create(requestor_ip: request.remote_ip, captured: DateTime.current()) 
         @newscammer.save 
         @return = "{ 'message' : 'Email added to database' }" 
        end

一切正常，直到这行代码

Scammer.requestors.where(requestor_ip: request.remote_ip).exists?

此行会导致此错误

undefined method `requestors' for Scammer:Class

我已经通过Mongoid.org和各种其他帖子在这里和其他董事会，我无法找到一种方法来访问Scammers的嵌入式Requestor元素。我是Ruby的新手，并试图自己解决问题所需的尽职调查，但我很难过。

答

找到答案 - 模型没有错，它是控制器中的代码块。显然，一旦您使用

where

返回对象，您将失去搜索或使用其他函数（如where，find和find_by）的能力。

我重新写的代码块本身，而现在它的工作原理

if Scammer.where(email_used: search_term).exists? scammerRec = Scammer.find_by(email_used: search_term)

  # Even though we found the parent object, we still need to use the .where function to pull the parent again and check for the requestor_ip in the requestors embedded doc 
     if not Scammer.where(email_used: search_term, "requestors.requestor_ip" => request.remote_ip).exists? 
     scammerRec.requestors.create(:requestor_ip => request.remote_ip) 
     end 
     returnjson = Scammer.where(email_used: search_term).to_json 
    else 
     # No entry found. We should now add this to the database as a search 
     newscammer = Scammer.new(email_used: search_term, checked: 1, first_logged: DateTime.current(), status: "Seems Legit") 
     requestor = Requestor.new 
     requestor.requestor_ip = request.remote_ip 
     Scammer.collection.update(newscammer.selector, {'$push' => {requestors: requestor.as_document}}, multi: true) 
     newscammer.save 
     returnjson = "{ 'message' : 'Email added to database' }" 
    end

mongoid嵌入文档标准，不承认

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