link_to is not working with a variable url

Question

I have a view that uses link_to to pass parameters to a controller. The url is a variable. Something is not working. I'd appreciate any clues. Thanks!

<% url1 = dialogs_path(@dialogId) %>
<%= url1 %>
<%= link_to "Go!", url1(:uid1 => @uid1, :uid2 => @uid2), :id => "my_link" %>

url1 displays correctly. However, executing link_to crashes.

What does "crashes" mean? Seeing a stack trace or error message of some sort would help. — BaronVonBraun, Aug 09 '12 at 01:49
Thanks @BaronVonBraun! I'm working on it. When the page that includes the link_to statement is rendered I get "we are sorry, but something went wrong". — user1388066, Aug 09 '12 at 02:29

Anthony Alberto · Accepted Answer · 2012-08-09T02:28:16.800

0

You should use dialog_path(@dialogId) instead.

You're trying to view a particular object, it's singular and what rails expects. Take a look here : http://guides.rubyonrails.org/routing.html#paths-and-urls

The way you use url confuses me, try something like this :

<%= link_to "Go!", dialog_path(@dialogId, :uid1 => @uid1, :uid2 => @uid2), :id => "my_link" %>

edited Aug 09 '12 at 02:28

answered Aug 09 '12 at 01:50

Anthony Alberto

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Thanks @Anthony for your help!I corrected that. I also noticed that I had a typo "url" instead of "url1" and I corrected that but that did not work either. I'm still debugging. Thanks again! – user1388066 Aug 09 '12 at 02:26
Edited, try the syntax in my answer – Anthony Alberto Aug 09 '12 at 02:28
I did use dialog_path(@dialogId) instead. Thanks @Anthony! – user1388066 Aug 09 '12 at 02:30
Thanks! @Anthony, the fix that you suggested is not working for some reason. I'm using my less eloquent work-around. – user1388066 Aug 21 '12 at 15:02

score 0 · Answer 2 · edited Aug 09 '12 at 11:11

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The url1 should be defined as:

<% url1 = dialogs_path(@dialogId)+'?uid1=' + @uid1 + '&uid2=' + @uid2% , :id => "my_link" %>

And the link_to should be:

<%= link_to "Go!", url1, :id => "my_link" %>

edited Aug 09 '12 at 11:11

Anthony Alberto

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answered Aug 09 '12 at 03:45

user1388066

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Pretty hacky way to do it, you're supposed to be able to add extra params using the `dialog_path` helper – Anthony Alberto Aug 09 '12 at 11:11
Thanks @AnthonyAlberto for your help! But what would you suggest? – user1388066 Aug 09 '12 at 15:11
`dialog_path(@dialogId, :uid1 => @uid1, :uid2 => @uid2)` . If it doesn;t work, give the error you're getting, or the wrong link – Anthony Alberto Aug 09 '12 at 15:22
It doesn't work. I'll go back and look into it. Thanks @AnthonyAlberto for your help! – user1388066 Aug 09 '12 at 15:38

link_to is not working with a variable url

2 Answers2