Question

我在我的模型中添加了这样的HSTORE类型：

serialize :settings, ActiveRecord::Coders::Hstore

然后我在我的模型中添加了以下内容以获取键值而无需使用方括号。

# Add the possibility to inquire HSTORE keys values without brackets
#   ex. @company_settings.settings['locale'] => @company_settings.locale
def method_missing(id, *args, &block)
  if settings.has_key?(id.to_s)
    settings.fetch(id.to_s)
  else
    super
  end
end

对于平等运营商，有没有办法做同样的事情？即。

@ company_setting.locale ='en'

修改

如果我执行'@ company_setting.locale

，这是我得到的错误

NoMethodError: undefined method `locale=' for #<CompanySettings:0x42e9a78>
from D:/Software/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activemodel-3.2.1/lib/active_model/attribute_methods.rb:407:in `method_missing'
from D:/Software/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3.2.1/lib/active_record/attribute_methods.rb:126:in `method_missing'
from D:/ASM/source/app/app/models/company_settings.rb:23:in `method_missing'

如何为hstore类型定义相等的运算符？

0 个答案: