Issue with passing parameter to action using link_to

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Sumit Srivastava

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Nov 29, 2012, 11:51:01 PM11/29/12
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Hi,

I have a controller named Users with index action.

def index
    puts "************* #{params[:city]}"
    ...
    ...
end

From the view,
link_to(:city, list_users_with_city_path(:city => city.name))

But when I click on this link, it doesn't prints out anything for the params. All the "*" are being printed. The url in the browser displays,

localhost:3000/users?city=delhi

Instead when I create a new route, get '/users/:city' => 'users#index', :as => list_users_with_city
This works fine. I get proper output.

What could be the problem?




Jim Ruther Nill

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Nov 30, 2012, 12:11:54 AM11/30/12
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On Fri, Nov 30, 2012 at 12:51 PM, Sumit Srivastava <sumit.the...@gmail.com> wrote:
Hi,

I have a controller named Users with index action.

def index
    puts "************* #{params[:city]}"
    ...
    ...
end

From the view,
link_to(:city, list_users_with_city_path(:city => city.name))

You implied below that list_users_with_city_path is not yet defined
at this point so why is it not giving any errors?  where did you 
get list_user_with_city_path if you haven't defined it in the routed yet?
 
But when I click on this link, it doesn't prints out anything for the params. All the "*" are being printed. The url in the browser displays,

localhost:3000/users?city=delhi

Instead when I create a new route, get '/users/:city' => 'users#index', :as => list_users_with_city
This works fine. I get proper output. 

What could be the problem?





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sumit srivastava

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Nov 30, 2012, 12:16:36 AM11/30/12
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On 30 November 2012 10:41, Jim Ruther Nill <jvn...@gmail.com> wrote:



On Fri, Nov 30, 2012 at 12:51 PM, Sumit Srivastava <sumit.the...@gmail.com> wrote:
Hi,

I have a controller named Users with index action.

def index
    puts "************* #{params[:city]}"
    ...
    ...
end

From the view,
link_to(:city, list_users_with_city_path(:city => city.name))

You implied below that list_users_with_city_path is not yet defined
at this point so why is it not giving any errors?  where did you 
get list_user_with_city_path if you haven't defined it in the routed yet?

Wrote this by mistake. I use it this way after defining the path. What doesn't works is,

link_to(:city, users(:city => city.name)
And this is not giving any errors but nothing is received in the index action.

 

Jim Ruther Nill

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Nov 30, 2012, 12:25:50 AM11/30/12
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On Fri, Nov 30, 2012 at 1:16 PM, sumit srivastava <sumit.the...@gmail.com> wrote:
On 30 November 2012 10:41, Jim Ruther Nill <jvn...@gmail.com> wrote:



On Fri, Nov 30, 2012 at 12:51 PM, Sumit Srivastava <sumit.the...@gmail.com> wrote:
Hi,

I have a controller named Users with index action.

def index
    puts "************* #{params[:city]}"
    ...
    ...
end

From the view,
link_to(:city, list_users_with_city_path(:city => city.name))

You implied below that list_users_with_city_path is not yet defined
at this point so why is it not giving any errors?  where did you 
get list_user_with_city_path if you haven't defined it in the routed yet?

Wrote this by mistake. I use it this way after defining the path. What doesn't works is,

link_to(:city, users(:city => city.name)
And this is not giving any errors but nothing is received in the index action.

use users_path.  I'm not sure why it's not giving any errors.

sumit srivastava

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Nov 30, 2012, 12:32:52 AM11/30/12
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On 30 November 2012 10:55, Jim Ruther Nill <jvn...@gmail.com> wrote:



On Fri, Nov 30, 2012 at 1:16 PM, sumit srivastava <sumit.the...@gmail.com> wrote:
On 30 November 2012 10:41, Jim Ruther Nill <jvn...@gmail.com> wrote:



On Fri, Nov 30, 2012 at 12:51 PM, Sumit Srivastava <sumit.the...@gmail.com> wrote:
Hi,

I have a controller named Users with index action.

def index
    puts "************* #{params[:city]}"
    ...
    ...
end

From the view,
link_to(:city, list_users_with_city_path(:city => city.name))

You implied below that list_users_with_city_path is not yet defined
at this point so why is it not giving any errors?  where did you 
get list_user_with_city_path if you haven't defined it in the routed yet?

Wrote this by mistake. I use it this way after defining the path. What doesn't works is,

link_to(:city, users(:city => city.name)
And this is not giving any errors but nothing is received in the index action.

use users_path.  I'm not sure why it's not giving any errors.

Ah! Again I typed wrong. Yes, this is what I used, users_path and seems like I also missed the closing bracket for link_to up here. Certainly, it gave errors without "path".

So, with the correct syntax, link_to(:city, users_path(:city => city.name)), it didn't work.

Jim Ruther Nill

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Nov 30, 2012, 12:42:27 AM11/30/12
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On Fri, Nov 30, 2012 at 1:32 PM, sumit srivastava <sumit.the...@gmail.com> wrote:
On 30 November 2012 10:55, Jim Ruther Nill <jvn...@gmail.com> wrote:



On Fri, Nov 30, 2012 at 1:16 PM, sumit srivastava <sumit.the...@gmail.com> wrote:
On 30 November 2012 10:41, Jim Ruther Nill <jvn...@gmail.com> wrote:



On Fri, Nov 30, 2012 at 12:51 PM, Sumit Srivastava <sumit.the...@gmail.com> wrote:
Hi,

I have a controller named Users with index action.

def index
    puts "************* #{params[:city]}"
    ...
    ...
end

From the view,
link_to(:city, list_users_with_city_path(:city => city.name))

You implied below that list_users_with_city_path is not yet defined
at this point so why is it not giving any errors?  where did you 
get list_user_with_city_path if you haven't defined it in the routed yet?

Wrote this by mistake. I use it this way after defining the path. What doesn't works is,

link_to(:city, users(:city => city.name)
And this is not giving any errors but nothing is received in the index action.

use users_path.  I'm not sure why it's not giving any errors.

Ah! Again I typed wrong. Yes, this is what I used, users_path and seems like I also missed the closing bracket for link_to up here. Certainly, it gave errors without "path".

So, with the correct syntax, link_to(:city, users_path(:city => city.name)), it didn't work.

i'm not sure why params[:city] isn't set when you reach that puts statement.  It may be caused by
a number of things.  Can you check if it really goes to the index action, you may have declared
something on your routes that takes precedence over the users resources?  Paste in the log after
you click on the link and you routes file (everything before the resources :users line).

sumit srivastava

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Nov 30, 2012, 12:50:18 AM11/30/12
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If it were being directed to some other action, then *************** should not have been printed. And when I am trying to access this parameter from the view "index.html.haml", its value is printed exactly what is being passed.

Regards
Sumit Srivastava

The power of imagination makes us infinite...

Jim Ruther Nill

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Nov 30, 2012, 1:09:43 AM11/30/12
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On Fri, Nov 30, 2012 at 1:50 PM, sumit srivastava <sumit.the...@gmail.com> wrote:
If it were being directed to some other action, then *************** should not have been printed. And when I am trying to access this parameter from the view "index.html.haml", its value is printed exactly what is being passed.

You're right but you may have the same kind of puts code in other parts of your file.  We're just making
sure that it really is going to the index action.  Try to use debugger instead of puts when you're debugging.
There may be times when you're rendering the same template from a different action which is why
the value is printed correctly.

sumit srivastava

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Nov 30, 2012, 1:50:53 AM11/30/12
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Verified it. Don't have puts anywhere else.

Regards
Sumit Srivastava

The power of imagination makes us infinite...


Jim Ruther Nill

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Nov 30, 2012, 1:54:04 AM11/30/12
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On Fri, Nov 30, 2012 at 2:50 PM, sumit srivastava <sumit.the...@gmail.com> wrote:
Verified it. Don't have puts anywhere else.

ok.  sorry but I ran out of ideas.  without looking at the logs or the whole code, i won't be able to
help.

Colin Law

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Nov 30, 2012, 3:46:24 AM11/30/12
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On 30 November 2012 06:50, sumit srivastava
<sumit.the...@gmail.com> wrote:
> Verified it. Don't have puts anywhere else.

Jim asked you to post the contents of the log (log/development.log)
when you click the link. Why have you not done that? Or have I
missed that message?

Colin

sumit srivastava

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Nov 30, 2012, 3:56:04 AM11/30/12
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I haven't posted the log yet because the code I posted is an example of what I am using. I can't post the code as it is proprietary. And so the log contains info that might violate it.


Colin

Jim Ruther Nill

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Nov 30, 2012, 4:13:37 AM11/30/12
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On Fri, Nov 30, 2012 at 4:56 PM, sumit srivastava <sumit.the...@gmail.com> wrote:
On 30 November 2012 14:16, Colin Law <cla...@googlemail.com> wrote:
On 30 November 2012 06:50, sumit srivastava
<sumit.the...@gmail.com> wrote:
> Verified it. Don't have puts anywhere else.

Jim asked you to post the contents of the log (log/development.log)
when you click the link.  Why have you not done that?  Or have I
missed that message?

I haven't posted the log yet because the code I posted is an example of what I am using. I can't post the code as it is proprietary. And so the log contains info that might violate it.

Create a new rails app and try to replicate the behavior.  If you can do that, we
might be able to help.  If not, consult within your company. Good luck!
 


Colin

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sumit srivastava

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Nov 30, 2012, 4:15:32 AM11/30/12
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On 30 November 2012 14:43, Jim Ruther Nill <jvn...@gmail.com> wrote:



On Fri, Nov 30, 2012 at 4:56 PM, sumit srivastava <sumit.the...@gmail.com> wrote:
On 30 November 2012 14:16, Colin Law <cla...@googlemail.com> wrote:
On 30 November 2012 06:50, sumit srivastava
<sumit.the...@gmail.com> wrote:
> Verified it. Don't have puts anywhere else.

Jim asked you to post the contents of the log (log/development.log)
when you click the link.  Why have you not done that?  Or have I
missed that message?

I haven't posted the log yet because the code I posted is an example of what I am using. I can't post the code as it is proprietary. And so the log contains info that might violate it.

Create a new rails app and try to replicate the behavior.  If you can do that, we
might be able to help.  If not, consult within your company. Good luck!

Thanks for the help. Will give it a try and post accordingly.
 
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