Mysql 无法使用具有多个直通rails查询访问模型属性

我有一个有许多通过协会，我已经包括在下面。我可以检索记录，但无法通过直接调用访问任何属性。以下是调查结果

Lead.first.case_详细信息 Lead.first.case\u详细信息。case\u编号 我想我应该注意到我所有的属性都是：as=>admin。如果这是造成问题的原因，那么我只是在寻找一种安全的方法来获取和设置属性，这样用户就不能

Lead.first.case_详细信息 Lead.first.case\u详细信息。case\u编号 模型 Lead.first.case_详细信息结果是一个没有methode case_编号的数组。您可以做什么：

Lead.first.case\u详细信息。first.case\u编号 Lead.first.case_details.map{| case_details | case_details.case_number}

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谢谢你，梅耶。这正是造成这种情况的原因。此外，这是一个伟大的章节，有许多通过查询

Lead Load (0.0ms)  SELECT "leads".* FROM "leads" LIMIT 1
CaseDetail Load (0.0ms)  SELECT "case_details".* FROM "case_details" INNER JOIN "case_detail_leads" ON "case_details"."id" = "case_detail_leads"."case_detail_id" WHERE "case_detail_leads"."lead_id" = 1
[#<CaseDetail id: 1, case_number: "131", style_of_case: "V", case_type: "CC", judge: "DIAL", date_filed: "2013-03-17 05:00:00", first_charge_id: nil, first_lead_id: 1, location_id: nil, legalscraper_id: nil, created_at: "2013-03-30">]

Lead Load (1.0ms)  SELECT "leads".* FROM "leads" LIMIT 1
#<Class:0x5d351d8>: undefined method `case_number' for #<ActiveRecord::Relation:0x5d360d8>
from D:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.12/lib/active_record/relation/delegation.rb:45:in `method_missing'
from D:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.12/lib/active_record/associations/collection_proxy.rb:100:in `method_missing'
from (irb):69
from D:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/commands/console.rb:47:in `start'
from D:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/commands/console.rb:8:in `start'
from D:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/commands.rb:41:in `<top (required)>'
from E:/Sites/aws/script/rails:6:in `require'
from E:/Sites/aws/script/rails:6:in `<top (required)>'
from -e:1:in `load'
from -e:1:in `<main>'

class Lead < ActiveRecord::Base
  has_many :case_detail_leads
  has_many :case_details, :through => :case_detail_leads

class LeadOffense < ActiveRecord::Base
  belongs_to :lead
  belongs_to :offense

class Offense < ActiveRecord::Base
  has_many :lead_offenses
  has_many :leads, :through => :lead_offenses