problem deleting a model

generated by gii:

array('label'=>'Delete', 'url'=>'#', 'linkOptions'=>array('submit'=>array('delete','id'=>$model->id),'confirm'=>'Are you sure you want to delete?'))

I changed to

array('label'=>'Delete', 'url'=>array('delete','id'=>$model->id)),

which gives this link:

index.php?r=cars/delete&id=2

which produces:

Invalid request. Please do not repeat this request again.

Why would that not work? Why does it work when using javascript popup?

edit:

I noticed delete is only allowed by post request, so the only option is to use javascript to do post and not get?

yes ! you are right;

in web developing , there is a basic knowledge:

GET is only for query , and is idempotent . means that you can do that any times and will get same effect;

POST is for command invoke . is used to affect server end , it is not idempotent. means if you do it multi_time you will get different result .

so update , insert and delete should use the POST instead of GET .

thanks for clarification you are ofcourse right, I’m getting back into web development after long break and I forgot some basic stuff

Reason I wanted to try get approach was that my javascript was malfunctioning because of some collisions with other javascript on the page, so pressing on Delete nothing happend. I still didn’t manage to solve that though