Activerecord 保存对象时出现Ruby保留字错误

我有一个表Radcheck，其中一列是'attribute'。使用safe_属性gem，我能够写入和读取列值，但在保存对象时，我遇到以下错误

Radcheck.new  
x = Radcheck.new  
x.send(:write_attribute, :attribute, 'aa')   
x.send(:read_attribute, :attribute, 'aa')                    
x.save

保存对象时的错误日志

ArgumentError: wrong number of arguments (0 for 1)
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/attribute_methods/read.rb:141:in `attribute'
from /.rvm/gems/ruby-1.9.3-p0/gems/activemodel-3.1.3/lib/active_model/dirty.rb:143:in `attribute_change'
from /.rvm/gems/ruby-1.9.3-p0/gems/activemodel-3.1.3/lib/active_model/dirty.rb:117:in `block in changes'
from /.rvm/gems/ruby-1.9.3-p0/gems/activemodel-3.1.3/lib/active_model/dirty.rb:117:in `map'
from /.rvm/gems/ruby-1.9.3-p0/gems/activemodel-3.1.3/lib/active_model/dirty.rb:117:in `changes'
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/attribute_methods/dirty.rb:23:in `save'
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/transactions.rb:241:in `block (2 levels) in save'
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/transactions.rb:295:in `block in with_transaction_returning_status'
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/transactions.rb:208:in `transaction'
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/transactions.rb:293:in `with_transaction_returning_status'
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/transactions.rb:241:in `block in save'
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/transactions.rb:252:in `rollback_active_record_state!'
from /.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/transactions.rb:240:in `save'
from (irb):46
from /.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/commands/console.rb:45:in `start'
from /.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/commands/console.rb:8:in `start'
from /.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/commands.rb:40:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'ruby-1.9.3-p0 :047 > 

ArgumentError:参数数目错误（0表示1）
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active\u record/attribute\u methods/read.rb:141:in'attribute'
from/.rvm/gems/ruby-1.9.3-p0/gems/activemodel-3.1.3/lib/active\u model/dirty.rb:143:in'attribute\u change'
from/.rvm/gems/ruby-1.9.3-p0/gems/activemodel-3.1.3/lib/active\u model/dirty.rb:117:“更改中的块”中
from/.rvm/gems/ruby-1.9.3-p0/gems/activemodel-3.1.3/lib/active\u model/dirty.rb:117:在“地图”中
from/.rvm/gems/ruby-1.9.3-p0/gems/activemodel-3.1.3/lib/active\u model/dirty.rb:117:in“changes”
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active\u record/attribute\u methods/dirty.rb:23:在“保存”中
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/transactions.rb:241:在“保存中的块（2个级别）”中
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active\u record/transactions.rb:295:in `带事务返回状态的块入'
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active\u record/connection\u adapters/abstract/database\u语句。rb:192:在“事务”中
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active\u record/transactions.rb:208:in“transaction”
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active\u record/transactions.rb:293:in“with\u transaction\u returning\u status”
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active_record/transactions.rb:241:“保存中的块”中
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active\u record/transactions.rb:252:处于“回滚”活动记录状态
from/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.1.3/lib/active\u record/transactions.rb:240:在“保存”中
来自（irb）：46
from/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/commands/console.rb:45:in'start'
from/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/commands/console.rb:8:in'start'
from/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/commands.rb:40:in`'
来自脚本/rails:6:in'require'
来自脚本/rails:6:in`'ruby-1.9.3-p0:047>

嗨，朋友，我认为安全属性没有问题

Radcheck.new  
x = Radcheck.new  
x.send(:write_attribute, :attribute, 'aa')   
#read_attribute does not requires any value
#x.send(:read_attribute, :attribute, 'aa') 
x.send(:read_attribute, :attribute)                
x.save

您还可以调用real_属性，直接在活动记录对象上写入_属性

Radcheck.new  
x = Radcheck.new  
x.write_attribute(:attribute, 'aa')
x.read_attribute(:attribute)              
x.save

还要确保您的模型中包含以下内容

class Radcheck < ActiveRecord::Base
  bad_attribute_names :attribute
end

class-Radcheck

谢谢您的回复。但我遵循了安全属性文档。但仍然得到同样的错误。我正在使用ruby 1.9.3和rails 3.1（安全属性在1.9.2和1.8.7上进行了测试）