Rails syntax error: unexpected keyword_ensure, expecting keyword_end

问题:

<h1>Get Ready</h1> <% if params[:ballot_position].to_i > 1 %> <p> Voter <%= params[:ballot_position].to_i - 1 %>, go get voter <%= params[:ballot_position] %> and switch places with them. </p> <p> Voter <%= params[:ballot_position] %>, when you are ready, click the button marked "Ready" below. </p> <% @ballot_link = "/vote/#{params[:election_id]}/ballot/#{params[:ballot_position]}" %> <a href="<%= @ballot_link %>" class="btn btn-primary">Ready</a> 

Above code seems to be resulting in:

ready.html.erb:13: syntax error, unexpected keyword_ensure, expecting keyword_end ready.html.erb:15: syntax error, unexpected $end, expecting keyword_end 

What's going on? What's wrong with this syntax?

回答1:

The errors you're receiving more than likely stem from trying to execute a if-else conditional wherein you have an extra <% end %> before <% else %>. Ensure that your conditional follows canonical if-else-end logic like the following:

<% if ... %>     <% @ballot_link = "/vote/#{params[:election_id]}/ballot/#{params[:ballot_position]}" %>     <a href="<%= @ballot_link %>" class="btn btn-primary">Ready</a> <% else %>     ... <% end %> 

回答2:

You are using if condition. So you should end it. The basic if conditions syntax for erb is

<% if ...condition.. %>     Statement <% end %> 

You have to decide what are you using ? It is if condition or if-else condition

In you case, there is not <% end %> clause at end so you have to add it.

<h1>Get Ready</h1> <% if params[:ballot_position].to_i > 1 %> <p> Voter <%= params[:ballot_position].to_i - 1 %>, go get voter <%= params[:ballot_position] %> and switch places with them. </p> <p> Voter <%= params[:ballot_position] %>, when you are ready, click the button marked "Ready" below. </p> <% @ballot_link = "/vote/#{params[:election_id]}/ballot/#{params[:ballot_position]}" %> <a href="<%= @ballot_link %>" class="btn btn-primary">Ready</a>   <% end %>  # this is what you have to add 

回答3:

My issue was that I forgot to end a do block when creating a link using link_to. My incorrect code looked like:

      <%= link_to("#", :class => "example-class") do %>         Nested HTML goes here 

I had forgotten to end the do statement. The correct code looks like:

      <%= link_to("#", :class => "example-class") do %>         Nested HTML goes here       <% end %> 

Hope this helps someone.

文章来源: Rails syntax error: unexpected keyword_ensure, expecting keyword_end