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如何在rubyonrails中使用没有控制器的模型?

ruby-on-rails

Zabba fl00r · 技术社区 · 15 年前

我有这些模型(为了简洁起见,这里没有显示迁移——它们是firstname、city等标准字段):

class User < ActiveRecord::Base
  has_one :address
end

class Address < ActiveRecord::Base
  has_one :user
end

如何使用Address类来管理底层表数据?简单地调用它的方法?在这种情况下,如何将参数/属性值传递给类?(因为地址没有控制器(因为它是在内部使用的)。

1 回复 | 直到 11 年前

Matt Briggs 15 年前

u = User.create :first_name => 'foo', :last_name => 'bar' #saves to the database, and returns the object
u.address.create :street => '122 street name' #saves to the database, with the user association set for you

#you can also just new stuff up, and save when you like
u = User.new
u.first_name = 'foo'
u.last_name ='bar'
u.save

#dynamic finders are hela-cool, you can chain stuff together however you like in the method name
u = User.find_by_first_name_and_last_name 'foo', 'bar'

#you also have some enumerable accessors
u = User.all.each {|u| puts u.first_name }

#and update works as you would expect

u = User.first
u.first_name = 'something new'
u.save

#deleting does as well

u = User.first
u.destroy

还有更多的事情,如果你对我没有涉及的东西有任何问题,请告诉我

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