如何在 Ruby/Rails 中指定私有或受保护的属性?
如何在 Ruby/Rails 中指定私有或受保护的属性?
所有数据库字段都自动具有属性,并且不需要在模型中定义吗?
有推荐的教程吗?
在 Rails 3.0.7 中工作。
How do you designate private or protected attributes in Ruby/Rails?
Are all DB fields automatically attributes, and don't need to be defined in the Model?
Any recommended tutorials?
Working in Rails 3.0.7.
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您可以使用
attr_protected
、attr_accessible
或attr_readonly
attr_protected, attr_readonly 和 attr_accessible 宏控制批量分配接受的内容。如果您不熟悉这三个宏之间的区别,请阅读这些链接。
ActiveRecord 模型的文档:
http://api.rubyonrails.org/classes/ActiveRecord/Base。 html
http://apidock.com/rails/ActiveRecord/Base
You can use
attr_protected
,attr_accessible
orattr_readonly
The attr_protected, attr_readonly and attr_accessible macros control what is accepted for mass-assignment. Read those links if you’re not familiar with the difference between those three macros.
Documentation of ActiveRecord model:
http://api.rubyonrails.org/classes/ActiveRecord/Base.html
http://apidock.com/rails/ActiveRecord/Base
标题与问题不符。
是的,数据库字段自动成为属性(取决于您对属性的含义;它们不只是像
attr_accessor
那样的@column_name
)。您可以使用
attr_accessible
提供某种程度的可访问性和attr_protected
,但这是用于批量分配,而不是一般访问。The title doesn't match the question.
Yes, DB fields are automatically attributes (depending on what you mean by attribute; they're not simply
@column_name
as withattr_accessor
).You can provide some level of accessibility by using
attr_accessible
andattr_protected
, but that's for mass-assignment, not general access.