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Editorial Team
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Asked: 2026-06-11T02:36:44+00:00

<%= link_to Next week, /?week_forward= %> <% if week_number % 52 == 0 %>

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<%= link_to "Next week", "/?week_forward= %>
<% if week_number % 52 == 0 %> 
    2 
<% else %> 
    1
<% end %>
<%= + #{(params[:week_forward].to_i || 0)}" %>

I am trying to get this in my html.erb. I’m really not sure what is wrong, are my quotation marks wrong?

Here is the error

bad URI `/?week_forward=%20);@output_buffer.safe_concat('');%20if%20week_number%20%%2052%20==%200%20%20@output_buffer.safe_concat(''2'');%20else%20%20@output_buffer.safe_concat(''1'');%20end%20@output_buffer.append=%20(%20+%200'.
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1 Answer

  1. Editorial Team

    You’re not using link_to properly; the week number 1 or 2 needs to be part of the 2nd argument, not appended after the call to link_to.

    <%= link_to "Next week", "/?week_forward=%d" % (week_number % 52 == 0) ? 2 : 1 %>

    Your link_to is going to create the following (once you fix the close quote after "/?week_forward=)

    <a href="/?week_forward=">Next Week</a>1

    when you appear to want something like

    <a href="/?week_forward=1">Next Week</a>
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