我刚刚从坎南开始,这里是一部法典的样本:
# Ability.rb
def initialize(user)
user ||= User.new
can :read, Link
end
# view.html.erb
<% if can? :read, @link %>
...
<% end %>
这是因为Can的阴道背书,但这种 does似乎在发挥作用(从操作中回收错误和停止......)。
当我把意见改为<代码>和>;如果能够的话,则百分比? 阅读 Link %>, 它运行。 但是,这不同于Can语。 你们是否知道我在哪里会错了?
can? :read, Link
is the concept of a link... something to the akin of "Can you read all links?"
can :read, Link do |link|
link.account.id == user.account_id
end
进行这种检查,确保你能够阅读所涉具体链接物体
检查
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