# A question on redirect\_to **URL:** \ **Category:** Rails\ **Created:** [June 26, 2008, 1:24pm UTC](https://www.ruby-forum.com/t/a-question-on-redirect-to/141494 "2008-06-26T13:24:27Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Titan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/7ba0ec/32.png) [@Titan](https://www.ruby-forum.com/u/Titan)\ **Post date:** [June 26, 2008, 1:24pm UTC](https://www.ruby-forum.com/t/a-question-on-redirect-to/141494/1 "2008-06-26T13:24:27Z")
Hello, I have been trying to do something like this… I have an object which is being sent through to the view from the controller and since the object is not guarenteed to have non nil values, i use an exception handler to catch the exception upto which this works fine. However in the handler, I need to redirect to say an error page, it says “undefined method redirect\_to”. The snippet from my view : \<%begin %\> … … … \<% end %\> \<%rescue =\> msg %\> \<% logger.info "Exception occurred - " + msg.to\_s %\> \<%= redirect\_to :controller =\> ‘my\_controller’, :action =\> ‘error’ %\> \<%end %\> This view is rendered thorough another action from the same controller ‘my\_controller’. When an exception occurs, it is caught and the point upto which the exception is rendered correctly. However, I would want the page to be redirected rather than being partially rendered. Is there anything that I am doing incorrectly here ? Any suggestions on this would be really helpful. ~Titan. ---
**Author:** ![Titan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/7ba0ec/32.png) [@Titan](https://www.ruby-forum.com/u/Titan)\ **Post date:** [June 26, 2008, 1:30pm UTC](https://www.ruby-forum.com/t/a-question-on-redirect-to/141494/2 "2008-06-26T13:30:54Z")
Seems to me as if you’re having much too much logic in that view. Such decisions should be made in the controller The view should only display results. ---
**Author:** ![Titan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/7ba0ec/32.png) [@Titan](https://www.ruby-forum.com/u/Titan)\ **Post date:** [June 26, 2008, 1:32pm UTC](https://www.ruby-forum.com/t/a-question-on-redirect-to/141494/3 "2008-06-26T13:32:39Z")
On 26 Jun 2008, at 12:24, Titan wrote: > This view is rendered thorough another action from the same controller > ‘my\_controller’. When an exception occurs, it is caught and the point > upto which the exception is rendered correctly. However, I would want > the page to be redirected rather than being partially rendered. Is > there anything that I am doing incorrectly here ? Any suggestions on > this would be really helpful. you can’t redirect from the view. You might be able to use a rescue\_from handler in your controller, although I think the approach you’re taking is a bit fugly. Fred ---
**Author:** ![Titan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/7ba0ec/32.png) [@Titan](https://www.ruby-forum.com/u/Titan)\ **Post date:** [June 26, 2008, 1:45pm UTC](https://www.ruby-forum.com/t/a-question-on-redirect-to/141494/4 "2008-06-26T13:45:32Z")
The issue you are having here is that you are trying to save yourself specific checks by using a global begin rescue block. so if you dont have guranteed values. (I.e: columns which are not checked for presence) and want to display them in the view then you should do something like: \<%= @model.columnname.uppercase if @model.columname %\> to avoid the error. “Undefined method uppercase for nil object” yes, every time. ps: you have your begin rescue bblock wrong. begin code\_that\_might\_raise rescue Exception =\> e more\_code end AND NOT begin code\_that\_might\_raise end \<-------------- this is wrong. rescue Exception =\> e more\_code end Hope it heps ---
**Author:** ![Titan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/7ba0ec/32.png) [@Titan](https://www.ruby-forum.com/u/Titan)\ **Post date:** [June 26, 2008, 2:02pm UTC](https://www.ruby-forum.com/t/a-question-on-redirect-to/141494/5 "2008-06-26T14:02:32Z")
Thanks for all your quick thoughts on this. What Wolas had predicted is exactly the case that I am facing(a large set of legacy data); for which I wanted to have a global rescue blocks. But I had earlier faced some problems with rescue\_from while dealing with the views and so I guess I would have to have individual validations for the fields before rendering them. thanks! ~Titan. ---
**Author:** ![Titan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/7ba0ec/32.png) [@Titan](https://www.ruby-forum.com/u/Titan)\ **Post date:** [June 26, 2008, 1:56pm UTC](https://www.ruby-forum.com/t/a-question-on-redirect-to/141494/6 "2008-06-26T13:56:05Z")
Does a rescue\_from in the controller rescue exceptions in the view? I had problems with this a while back and just assumed it didn’t. RSL On Thu, Jun 26, 2008 at 7:31 AM, Frederick C. \< ---
**Author:** ![Titan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/7ba0ec/32.png) [@Titan](https://www.ruby-forum.com/u/Titan)\ **Post date:** [June 26, 2008, 3:12pm UTC](https://www.ruby-forum.com/t/a-question-on-redirect-to/141494/7 "2008-06-26T15:12:27Z")
On 26 Jun 2008, at 12:54, Russell N. wrote: > Does a rescue\_from in the controller rescue exceptions in the view? > I had problems with this a while back and just assumed it didn’t. can’t remember, which is why I said might :-). It seems that any exception thrown while rendering is wrapped inside an ActionView::TemplateError and so that’s the type you have to rescue\_from (which seems to work in a quick experiment) Fred ---
**Author:** ![Titan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/7ba0ec/32.png) [@Titan](https://www.ruby-forum.com/u/Titan)\ **Post date:** [June 26, 2008, 3:22pm UTC](https://www.ruby-forum.com/t/a-question-on-redirect-to/141494/8 "2008-06-26T15:22:26Z")
aha! i’m sure that was it, i just wasn’t rescuing the right error. RSL On Thu, Jun 26, 2008 at 9:11 AM, Frederick C. \<