问题描述
我在 magento 中使用 customer_save_after 事件，除了 1 件烦人的事情之外，一切正常 - 它总是被触发两次.
I am using the customer_save_after event in magento, and all is working fine apart from 1 annoying thing - it is always fired twice.
没有其他模块重写这个，我找不到其他原因导致这种情况发生.当我查看此时被触发的所有事件时，该事件肯定会被触发两次.
There are no other modules rewriting this and I can find no other reason for this happening. When I look through all of the events getting fired at this time and this event is definately getting fired twice.
有人解释一下吗?
我正在编写一个与此挂钩的 Web 服务，但结果证明复制内容非常低效.
I am writing a web service that hooks into this and its turning out to be quite inefficient to duplicate things.
推荐答案
我也注意到了这种双重保存行为.防止观察者出现问题的方法是在请求中设置一个可以检查的标志，例如
I've noticed this double-save behaviour too. The way to prevent issue with your observer is to set a flag in the request that can be checked e.g.
if(Mage::registry('customer_save_observer_executed')){
return $this; //this method has already been executed once in this request (see comment below)
}
...execute arbitrary code here....
/* Customer Addresses seem to call the before_save event twice,
* so we need to set a variable so we only process it once, otherwise we get duplicates
*/
Mage::register('customer_save_observer_executed',true);
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