I have a custom validation method that I only want executed on create:
我有一个自定义验证方法，我只想在create上执行：
validate :post_count, :on => :create
def post_count
# validate stuff
end
However, it's getting fired on update (in addition to on create).
然而，它在更新时被解雇（除了在创建时）。
Does the :on => :create option not work with custom validation methods?
：on =>：create选项不适用于自定义验证方法吗？
2 个解决方案
#1
9
As far as I know, there's no :on option. Use
据我所知，没有：on选项。使用
validate_on_create :post_count
instead. And there's validate_on_update also. You can read about this methods here.
代替。而且还有validate_on_update。你可以在这里阅读这些方法。
#2
7
This may be a Rails 2.x vs. Rails 3 issue but according to the Rails Guides on Validation the :on option is definitely valid (though I am fighting with why it's not firing for me in a similar way).
这可能是Rails 2.x vs. Rails 3问题，但根据Rails指南验证：on选项绝对有效（尽管我正在为什么它不以类似的方式为我解雇）。
#1
9
As far as I know, there's no :on option. Use
据我所知，没有：on选项。使用
validate_on_create :post_count
instead. And there's validate_on_update also. You can read about this methods here.
代替。而且还有validate_on_update。你可以在这里阅读这些方法。
#2
7
This may be a Rails 2.x vs. Rails 3 issue but according to the Rails Guides on Validation the :on option is definitely valid (though I am fighting with why it's not firing for me in a similar way).
这可能是Rails 2.x vs. Rails 3问题，但根据Rails指南验证：on选项绝对有效（尽管我正在为什么它不以类似的方式为我解雇）。